CN100515062C - Video apparatus, video output control method, and reproduction control method - Google Patents
Video apparatus, video output control method, and reproduction control method Download PDFInfo
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- CN100515062C CN100515062C CNB2005101140109A CN200510114010A CN100515062C CN 100515062 C CN100515062 C CN 100515062C CN B2005101140109 A CNB2005101140109 A CN B2005101140109A CN 200510114010 A CN200510114010 A CN 200510114010A CN 100515062 C CN100515062 C CN 100515062C
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Abstract
A video apparatus is disclosed. The video apparatus has signal control means for outputting an image signal in a plurality of formats, interface means for connecting the video apparatus to a computer, and interface control means for controlling so as to transmit the image signal to the computer by using the interface means. In the case where the video apparatus has been connected to the computer through the interface means, when the format of the image signal is switched, the interface control means controls the interface means in such a manner that the connection to the computer is disconnected without changing a physical connecting state. After the elapse of a predetermined period, the video apparatus is connected to the computer again without changing the physical connecting state.
Description
The application comprises the Japanese patent application No.2004-299506 that submits to that relates on October 14th, 2004, Japanese patent application No.2004-369818 that on December 21st, 2004 submitted to and the theme of the Japanese patent application No.2005-042914 that submitted on February 18th, 2005, and its whole contents is incorporated by reference herein.
Technical field
The present invention relates to can be with the video equipment of multiple form output video/audio signal, and relates to the control method of output image signal in video equipment like this.
Background technology
In the last few years, the video equipment such as video cameras had obtained extensive popularization.Wherein will be recorded in mobile image on the recording medium such as tape, dish or rest image by video equipment outputs to computer such as personal computer and television equipment and its type of service that monitors is equally popularized.Only by using predetermined cable that video system and computer etc. are linked to each other and carrying out predetermined simple operations and realize such supervision form.
In addition, significantly improved the function of the video photography equipment of above-mentioned extensive popularization.For example, proposed the video/audio signal of different-format to be recorded in with mixing simulator on the same medium.As the example of such video/audio signal form, can mention DV (digital video) form and HDV (high sharpness video) (registered trade mark) format combination.
The DV form is a kind of record format that is widely used in the commodity video photography equipment, and with about 3.5Mb/ fixed rate compression data of second.Can make video quality as much as possible near broadcast level, and as far as possible near having such compression ratio.Because video/audio data is converted into numerical data and is recorded on the tape, therefore can it be copied to the disk unit of computer by cable, perhaps can be recorded in its backup copies on the tape and do not cause that quality occurring in the simulation copy reduces.The recording medium that uses in the video photography equipment that uses this record format is DV cassette tape or miniature DV cassette tape.According to the standard of miniature DV cassette tape, it is physically less than the DV cassette tape, and recordable time is shorter.
Aspect the HDV form, there are 720p (line by line) system and 1080i (interlacing) system, and can carry out the record and the reproduction of high-quality HD (high definition) video image.Video format is MPEG2 (Motion Picture Experts Group's stage 2).Under the situation of system line by line, data are with about 19Mb/ speed compression of second, and under the situation of interlaced systems, data are with about 25Mb/ speed compression of second.
According to the HDV standard, owing to used cassette tape, tape speed and the track space identical with the DV standard, therefore compatible high with the clause of DV standard, more particularly, can the recoding/reproduction function be added on the video photography equipment of DV standard according to the HDV form, and on a tape, write down the video/audio signal of two kinds of forms.
Yet; if corresponding to the such video photography equipment of DV form and HDV form via for example being connected to computer by the cable of IEEE (Institute of Electrical and Electric Engineers) 1394 (IEEE 1394 cables) appointment; and in the reproduction process, switch the form of output image (reproduced image); the situation that then has the problem that computer side's hang-up occurs, wherein.
Because it is following former thereby this problem occurs: promptly, when computer is connected to video photography equipment via IEEE 1394 cables, read the specific drivers of the employed form of video photography equipment (reproducing) at this time point, then by this driver during connecting, carry out by IEEE 1394 cables from/receive and send the operation of data to video photography equipment.
That is, when computer is connected to video photography equipment by IEEE 1394 cables, distinguish that according to IEEE 1394 standards video photography equipment still is HDV form (MPEG2) corresponding to the DV form.According to the result who distinguishes, read driver corresponding to the form of video photography equipment, then by this driver carry out from/to the reception of video photography equipment with send the operation of data, up to computer and video camera equipment disconnection (shutdown).Therefore, when computer at reproduction period when video photography equipment receives the video/audio signal of different-format, driver is difficult to the such situation of reply, and causes the inconvenience such as computer self hang-up.
Therefore, for fear of such problem, when having changed the form of the data that will export (reproduction), need the connection between break of video video camera and the computer, and they are connected once more.For this purpose, for example need physically to extract or insert cable.
On the other hand, at JP-B-8-31063, such technology is disclosed, promptly, if the information equipment such as computer is connected with external equipment such as memory device, then when the rub-out signal that detects from external equipment, information equipment disconnects the interface of two equipment rooms and reserve part interface only, and when detecting instruction from restoring signal that mistake is recovered, connecting interface once more.
At JP-A-11-163912, disclose and to have carried out the feasible automatic interruption of node of IEEE 1394 buses and the net control device that is connected of network of being connected to of remote control.
In addition, in the video photography equipment of record that drops into commercial use and reply HDV form and DV form and reproduction, exist by hardware and switch the disconnection (shutoff) of carrying out IEEE 1394 buses and the equipment that reconnects.
Summary of the invention
Yet; this for fear of the inconvenience such as the computer hang-up, make connection between video photography equipment and the computer disconnect once and then the method that connects is not the practical countermeasure that solves such problem and whenever from the change of format of the video/audio signal of video photography equipment output the time, extract and insert cable.This is because exist the data mixing ground of HDV form and DV form to be recorded in such as the situation on the recording mediums such as DV cassette tape, and has the possibility of data format according to the frequent change in the reproduction processes of a series of DV cassette tapes of record order.
Also there is such problem, promptly, the menu of user error ground operation video photography equipment etc. and in the data of reproducing the HDV form that is recorded on the DV cassette tape, commander equipment reproduces the data of DV form, perhaps opposite, in the data of reproducing the DV form, commander equipment reproduces the data of HDV form.Such faulty operation often appears under the situation of the reproduction mode of the mistaken video photography equipment of user for example and logging mode etc.
In addition, according to disclosed technology among the JP-B-8-31063, when the rub-out signal that detects from the external equipment that is connected, disconnect the part interface between two equipment rather than disconnect whole interface.In addition,, detect rub-out signal and the restoring signal from this mistake, and the disconnection of executive's interface and reconnecting from external equipment according to this technology, and the mistake that does not stop the operation by information equipment itself to cause.The purpose of such technology is actually the safety of data of improving in the external equipment be stored in such as memory device, and such technology is not the technology that can be used to avoid the appearance of the inconvenience such as aforementioned calculation machine hang-up (hang-up).
In addition, according to disclosed net control device among the above-mentioned JP-A-11-163912, when 64 or more nodes are connected to IEEE 1394 buses mistakenly, make remote control and make and do not carry out any unnecessary node and the network system disconnection that data send.Thisly avoid the technology of the appearance of above-mentioned inconvenience such as hang-up on its purpose and structure, to say and to realize by using such equipment.
In addition,, there be not under the situation of user intervention video photography equipment and computer automatic disconnection and to reconnect be impossible according to video photography equipment with above-mentioned hardware switch.The operation that the existence of such hardware switch not only makes the user is complicated more, and becomes the parts that reduce video photography equipment and with the obstacle of its miniaturization.
Therefore, according to embodiments of the invention, providing can be with the video equipment of multiple form output video/audio signal, wherein, when switching outputs to the form of video/audio signal of computer, do not need physically to extract and insert cable just can automatic disconnection and reconnect video equipment and computer between connection, and be provided for the video output control method of such video equipment.
According to the first embodiment of the present invention, expectation provides a kind of video equipment, and comprising: signal control device is used for multiple form output image signal; Interface arrangement is used for described video equipment is connected to computer; And interface control unit, be used to control so that use described interface arrangement that described picture signal is sent to described computer, wherein, be connected under the situation of described computer at video equipment by described interface arrangement, when switching the form of described picture signal, described interface control unit is controlled described interface arrangement with the ways of connecting that does not change physical connection state ground and logically disconnect with described computer, and at the fixed time, once more video equipment logically is connected to described computer and does not change physical connection state.
According to a second embodiment of the present invention, in the video equipment of first embodiment of the invention, the scheduled time is set to be equal to or greater than time of time of disconnection that computer can detect the logic of connection.
According to first and second embodiment; even the change of format of picture signal when video equipment sends (reproduction) with picture signal to arrive computer; the driver of computer side also changes to suitable driver, makes the risk that the inconvenience such as the computer hang-up occurs drop to minimum.
According to third embodiment of the invention, expectation provides a kind of video output control method, comprise: forwarding step, control so that can send to computer by being used for that video equipment is connected to interface arrangement of computer with the picture signal of multiple form output; Logically disconnect/reconnect step, be connected under the situation of described computer at video equipment at described forwarding step, when switching the form of described picture signal, control described interface arrangement, under the situation that does not change physical connection state, logically disconnect and being connected of described computer, and after predetermined period, once more video equipment logically is connected to described computer and does not change physical connection state.
A fourth embodiment in accordance with the invention, in the picture output method of third embodiment of the invention, predetermined period is set to be equal to or greater than time of time of disconnection that computer can detect the logic of connection.
According to third and fourth embodiment; even the change of format of picture signal when video equipment sends (reproduction) with picture signal to arrive external equipment; the driver of computer side also changes to suitable driver, makes the risk that the inconvenience such as the computer hang-up occurs drop to minimum.
According to fifth embodiment of the invention, expectation provides a kind of playback control method, be used in to have and come the recoding/reproduction signal so that multiple signal format is mixed recoding/reproduction function that ground exists and is established to being connected and exporting in the recording/reproducing apparatus of communication function of reproducing signal of external equipment by recording medium, comprise: forwarding step, control so that can send to described external equipment by the interface arrangement that is used for described recording/reproducing apparatus is connected to described external equipment with the picture signal of multiple form output; Logically disconnect/reconnect step, in described forwarding step, be connected under the situation of described external equipment at recording/reproducing apparatus, when switching the form of described picture signal, control described interface arrangement, under the situation that does not change physical connection state, logically disconnect and being connected of described external equipment, and after predetermined period, once more recording/reproducing apparatus logically is connected to described external equipment and does not change physical connection state; With the reproducing control step, control the described reproduction operation of described recording/reproducing apparatus, wherein, in described reproducing control step, when reproduction mode has been arranged to the specific reproduction pattern, the reproduction of skipping the recording section of the form that does not correspond to described reproduction mode.
According to sixth embodiment of the invention, expectation provides a kind of playback control method, have to come the recoding/reproduction signal to make multiple signal format mix recoding/reproduction function that ground exists by recording medium and be established to being connected and exporting in the recording/reproducing apparatus of communication function of reproducing signal of external equipment, comprise: forwarding step, control so that can send to described external equipment by the interface arrangement that is used for described recording/reproducing apparatus logically is connected to described external equipment with the picture signal of multiple form output; Logically disconnect/reconnect step, in described forwarding step, logically be connected under the situation of described external equipment at recording/reproducing apparatus, when switching the form of described picture signal, control described interface arrangement, under the situation that does not change physical connection state, logically disconnect and being connected of described external equipment, and after predetermined period, once more recording/reproducing apparatus logically is connected to described external equipment and does not change physical connection state; With video output controlled step, control the video output function of described recording/reproducing apparatus, wherein, in video output controlled step, when reproduction mode had been arranged to the specific reproduction pattern, output was not corresponding to the false signal of the form of described reproduction mode when reproduction corresponds to the recording section of form of described reproduction mode.
The the 5th and the 6th embodiment according to the present invention; even the change of format of picture signal when video equipment sends (reproduction) with picture signal to arrive external equipment; also under the situation that does not change physical connection state, disconnect and being connected of external equipment; and after predetermined period; once more recording/reproducing apparatus is connected to external equipment and does not change physical connection state, thereby the risk of the inconvenience of appearance such as computer hang-up drops to minimum.
Give the credit to video equipment and video output control method according to the embodiment of the invention, when the form of the video/audio signal that outputs to computer switches, do not need physically to extract and insert cable also can automatic disconnection/reconnect the connection between video equipment and the computer.When reconnecting, computer side reads the driver corresponding to the form of the video/audio signal of exporting from video equipment.Therefore, in addition when from the form of the video/audio signal of video equipment output when reproduction period switches, the inconvenience such as hang-up can not take place yet.
Other features and advantages of the present invention will become clearer in will describing in the present invention in conjunction with the accompanying drawings, and wherein, identical in the accompanying drawings Reference numeral is represented same or analogous parts.
Description of drawings
Fig. 1 shows the schematic diagram that is connected to the state of computer 11 according to the video equipment 10 of the embodiment of the invention by IEEE 1394 cables;
Fig. 2 A and 2B conceptually are presented under the situation that video equipment 10 according to the embodiment of the invention is connected to IEEE 1394 buses and computer 11 schematic diagram of identification video equipment 10 how under the situation of its disconnection;
Fig. 3 is the block diagram of demonstration according to the structure of the video equipment 10 of the embodiment of the invention;
Fig. 4 shows and schematic diagram according to the modification of the chip structure of the corresponding element of the interface control unit of the video equipment 10 of the embodiment of the invention and interface unit;
Fig. 5 is presented at the flow chart of computer 11 via the processing procedure of IEEE 1394 cables under the situation of video equipment 10 receiver, videos/audio signal;
Fig. 6 shows the schematic diagram of example be used for being provided with at the video equipment 10 according to the embodiment of the invention menu display screen of rabbit pattern;
Fig. 7 A is to be presented at the figure that has selected not the specific examples under the situation of the processing of the MPEG pattern of video equipment output different-format signal in the video system to 7C;
Fig. 8 A is to be presented at the figure that has selected not the specific examples under the situation of the processing of the DV pattern of video equipment output different-format signal in the video system to 8C;
Fig. 9 is the schematic diagram of the operation of computer under the reproduction period of form in the video equipment of prior art that conceptually be presented at the video/audio signal that will the export situation about changing;
Figure 10 is the schematic diagram of the operation of computer under the reproduction period of form in the video equipment of prior art that conceptually be presented at the video/audio signal that will the export situation about changing;
Figure 11 is the schematic diagram of the operation of computer under the reproduction period of form in the video equipment of prior art that conceptually be presented at the video/audio signal that will the export situation about changing;
Figure 12 is the schematic diagram of the operation of computer under the reproduction period of form in the video equipment of prior art that conceptually be presented at the video/audio signal that will the export situation about changing;
Figure 13 is the schematic diagram that conceptually is presented at the operation of computer under the situation of switching reproduction mode between the period of output of video/audio signal of video equipment of prior art;
Figure 14 is the schematic diagram that conceptually is presented at the operation of computer under the situation of switching reproduction mode between the period of output of video/audio signal of video equipment of prior art;
Figure 15 is the schematic diagram that switches the operation of computer 11 under the situation of reproduction mode between the period of output that conceptually is presented at according to the video/audio signal of the video equipment 10 of the embodiment of the invention;
Figure 16 shows to be used at the flow chart of extracting and insert the virtual processing procedure of IEEE1394 cable according to the video equipment 10 of the embodiment of the invention;
Figure 17 shows the schematic diagram that is used in the detailed content of the virtual processing procedure of extracting and insert the IEEE1394 cable according to the video equipment 10 of the embodiment of the invention;
Figure 18 A is to show the sequential chart of comparing the change sequential of various signals in the virtual processing of extracting and inserting IEEE 1394 cables in the video equipment 10 according to the embodiment of the invention with method of the prior art with 18B; And
Figure 19 is the block diagram that shows the example of structure of computer 11.
Embodiment
Video equipment according to the present invention is can be with the video equipment of multiple form output video/audio signal.Video equipment not only comprises the equipment of output movement image, also comprises the equipment of exporting rest image.In this case, video equipment of the present invention is can be with the video equipment of multiple form output video/audio signal.
For example, the video/audio signal of multiple form is the combination of the data (signal) of the data (signal) of DV form and HDV form.Though not only comprise video data usually but also comprise voice data in these motion image formats, in the present invention, it is enough can handling the picture signal (vision signal) that is made of moving image and rest image at least.Therefore, in specification, abbreviate " video equipment " as according to the equipment of those form dateouts.
The type of attachment of video equipment of the present invention and computer at first, is described with reference to Fig. 1.Fig. 1 illustrates according to video equipment 10 of the present invention and computer 11, and both are connected by IEEE 1394 cables 14.By such IEEE 1394 buses that are connected to form.Between video equipment 10 and computer 11, send and receive control signal and video/audio signal by IEEE 1394 cables 14.Computer 11 is the computers with universal architecture in the correlation technique.
The transmission of video/audio signal and the representative instance of reception are to be recorded in video/audio signal on the recording medium outputs to computer 11 by IEEE 1394 cables 14 form by video equipment 10.For example, computer 11 is carried out predetermined decoding for the video/audio signal that receives from video equipment 10 and is handled, and thus obtained vision signal is sent to monitor 12, thus display video image, and audio signal is sent to loud speaker 13, produce audio sound thus.
Carry out virtual controlling by this way according to video equipment 10 of the present invention, promptly, computer 11 in the moment of switching form the disconnection of the connection between video equipment 10 and the computer 11 once and then reconnected, so that can normally receive the video/audio signal of multiple different-format.According to such virtual controlling, can obtain and the practically identical effect of the effect that situation obtained of physically extracting and insert IEEE 1394 cables 14.During so virtual processing, IEEE 1394 cables 14 remain on and video equipment 10 and computer 11 between the state of physical connection.In other words, the physical connection state between video equipment 10 and the computer 11 does not change.
Fig. 2 A and 2B show the notion of the virtual processing of such disconnection/reconnect.The normal condition that Fig. 2 A display video equipment 10, computer 11, equipment 21 to 23 physical connections connect to network 24 (being IEEE 1394 buses in this example) and logic.When by use as in computer 11 operation, predetermined network tool shows and video equipment 10 and equipment 21 to 23 occur when being connected to a series of equipment of computer 11 by network 24.
Fig. 2 B has shown the state that above-mentioned video equipment 10 disconnects from network 24 logics.Similar to the mode of Fig. 2 A, though video equipment 10, computer 11 and equipment 21 to 23 physical connections to network 24, do not have logic to connect video equipment 10.For example, when by use as in computer 11 operation, predetermined network tool shows when being connected to a series of equipment of computer 11 by network 24, although equipment 21 to 23 occurs, the video equipment 10 that logic not connects do not occur.
At the fixed time, video equipment logic once more is connected to network 24, makes connection status turn back to the state of Fig. 2 A from the state shown in Fig. 2 B.
With reference to the structure of Fig. 3 description according to the video equipment 10 of the embodiment of the invention.Video equipment 10 comprises: camera unit 31, photography control unit 32, mechanical control unit 33, user interface control unit 34, signaling control unit 35, interface control unit 36 and interface unit 37.
For example, constitute camera unit 31, and moving image or the rest image of taking is output as the signal of telecommunication by shutter, camera lens and the image pick up equipment such as CCD (charge coupled device).Photography control unit 32 control shutter operations, zoom operation, focusing operation etc.The operation of the unit of mechanical control unit 33 each record of control, reproduction etc. about video equipment 10.
User interface control unit 34 is by using OSD (screen display) to wait to allow to show the menu display screen by user instruction on the monitor unit (not shown) of video equipment 10, and from menu display screen reception user instruction.User interface control unit 34 detects the user and presses each button (not shown) that offers video equipment 10, and sends necessary signal etc. according to the button of pressing to mechanical control unit 33.
Signaling control unit 35 has by coding and forms vision signal from the signal of telecommunication of acquisition such as camera unit 31, and decoding is recorded in the video/audio signal on the recording medium, and on monitor unit their function of demonstration.Signaling control unit 35 also has by interface unit 37 outwards exports the function that is recorded in the video/audio signal on the recording medium with the form (perhaps after they are decoded as another form) of himself.Signaling control unit 35 also has record, reproduces and handles the function of the video/audio signal of multiple form.
When the change of format of video/audio signal or user instruction changed form in detecting recording medium, interface control unit 36 controls were so that the logic of carrying out about network 38 disconnects, and through after the scheduled time, control reconnects network 38 so that carry out.For example, interface unit 37 is connected to the network 38 as IEEE 1394 buses according to the control of interface control unit 36, and operation in case realize from/to the disconnection of network 38 with reconnect.
The structure of interface control unit 36 and interface unit 37 is described in further detail with reference to Fig. 4.In Fig. 4, show that respectively CPU 41, link unit 42 and PHY unit 43 are as 3 chip structures, 2 chip structures and single chip architecture.Should use in these structures which is according to the design needs.Show these chip structures as just example, also can consider other various patterns.At all, CPU41 realizes the function of interface control unit 36, and link unit 42 and PHY unit 43 are corresponding to interface unit 37.Though exist CPU 41 also to relate to the situation of other control of video equipment, for the ease of explaining, will describe the situation that hypothesis CPU 41 only relates to network control here now according to its structure.
Constitute the communication layers of IEEE 1394 by following part: three layers of PHY layer, link layer and processing layers; And serial bus management.Physical layer is corresponding to the PHY layer, and data link layer is corresponding to link layer.
Be described in the example that computer 11 is selected the process under the situation of driver with reference to flow chart 5.
At first, in step S10, computer 11 detects video equipment 10 and whether is connected to computer 11 by IEEE 1394 buses.At least in the given time (step S10 is a "No") repeats this judgement about connecting.When detecting video equipment 10 and connected (step S10 is a "Yes"), computer 11 sends AV/C (audio/video control) order (AV/C digital interface command set) at step S12 to video equipment 10, such as Output_Plug_Signal_Format order or Output_Signal_Mode order.
Subsequently, step S14 according to the category of response of AV/C order is distinguished video equipment 10 be send HDV form (MPEG2 form) video/audio signal MPEG equipment or send the DV equipment of the video/audio signal of DV form.Specifically, the video equipment 10 of determining to return in response to one of these instructions at least the signal that shows this equipment itself is a DV equipment.
If determine that at step S14 video equipment 10 is a MPEG equipment, then computer 11 reads the data that driver (MPEG driver) comes to receive from video equipment 10 via IEEE 1394 buses mpeg format at step S16.
On the other hand, if determine that at step S14 video equipment 10 is a DV equipment, computer 11 reads the data that driver (DV driver) comes to receive from video equipment 10 via IEEE 1394 buses the DV form at step S18.
MPEG driver and DV driver are deferred to the MPEG transmission specification and the DV transmission specification of the AV agreement of regulation in IEEE 1394 respectively.Computer 11 passes through MPEG driver and DV driver decoded video/audio signal on demand, and signal is shown on monitor.Can also control so as with video/audio signal recording on hard disk of computer 11 etc.
As mentioned above, there is such situation, that is, is provided to the driver that above-mentioned selectivity reads, then cause the inconvenience of the hang-up and so on of computer 11 itself according to OS (operating system) if having the signal of the form that is different from corresponding form.
Describe the example that is used at the menu of video equipment 10 select operating modes, form etc. with reference to Fig. 6, wherein video equipment 10 can be with multiple form output video/audio signal.For example, by using OSD (screen display) function on the monitor unit of video equipment 10 and view finder, to show such menu display screen.In order to make the user can select to be presented on the menu display screen each, for example, use the button arranged in the operating unit of video equipment 10 and switch or as the input unit of dial and push-button type.Those of such menu structure and selection function and video equipment 100 of the prior art are identical.
Be used for the operator scheme that the user selects video equipment 10 at the menu 51 shown in the left side of Fig. 6.For example, select such as one of operator schemes such as video record mode, rabbit pattern.In this case, shown the example of selecting the rabbit pattern.
When in menu 51, selecting the rabbit pattern,, in the rabbit pattern, select the form of desired output video/audio signal at right side popup menu 52.According to the pattern display menu of in menu 51, selecting 52.Therefore, can change content displayed and some in menu 52 according to the item of in menu 51, selecting.
When " automatically " in elected single 52 the item of triming vegetables for cooking, video equipment 10 is recorded in the video/audio signal of the recording medium such as cassette tape with the form reproduction that is used for writing down.For example, if video equipment 10 corresponding to DV form and HDV form, then video equipment 10 output DV signal or mpeg signals.At this moment, when video equipment 10 was connected to computer 11 by IEEE 1394 buses, if its output DV signal, then computer 11 was used as video equipment 10 DV equipment and is read the driver that is used for DV.If it exports mpeg signal, then computer 11 is used as video equipment 10 MPEG equipment and is read the driver that is used for MPEG.
Under the situation of the recording medium that reproduces the video/audio signal that writes down DV form and HDV form by video equipment 100 of the prior art with mixing; if then there is the above-mentioned risk that causes computer 11 hang-ups in the video/audio signal of the reproduction form different-format that reproduces and use when video equipment is connected to computer 11.
If select in menu 52 " HDV ", then video equipment 100 does not consider that the record format on the recording medium only exports mpeg signal.Part output MPEG false signal for the video/audio signal that writes down the DV form.
That is, shown in Fig. 7 A, when selecting the HDV pattern, reproduce the MPEG recording section with normal mode.When detecting when reproducing point and entering the DV recording section, stop output to interface unit 37, if desired, output MPEG false signal.Subsequently, when by search such as forwarding operation, high-speed retrieval and when detecting next MPEG recording section, operator scheme turns back to normal reproduction, and restarts the output of interface unit 37.
Skipped (forwarding operation, high-speed retrieval etc.) reproduction, and in this period, stopped output with the part that is different from selected format record.Can also carry out with the operation of selected form output false signal etc.
For example, shown in Fig. 7 B, when selecting the MPEG pattern, reproduce the MPEG recording section, skip the DV recording section, in this period, stop to the output of interface unit 37 with normal mode, if desired, output MPEG false signal.Subsequently, when by search such as forwarding operation, high-speed retrieval and when detecting next MPEG recording section, operator scheme turns back to normal reproduction, and restarts the output to interface unit 37.
Therefore, even put at any time when being connected to computer 11 when video equipment, computer 11 also reads the driver that is used for MPEG.Then, as long as select " HDV ", just avoided the hang-up problem.
On the other hand, when selecting " DV " in menu 52, video equipment 100 is not considered the record format on the recording medium and is only exported the DV signal.Part output DV false signal for the video/audio signal that writes down mpeg format.
That is, shown in Fig. 8 A, when selecting the DV pattern, reproduce the DV recording section with normal mode.When detecting when reproducing point and entering the MPEG recording section, stop to the output of interface unit 37, and if desired, output DV false signal.Subsequently, when by search such as forwarding operation, high-speed retrieval and when detecting next DV recording section, operator scheme turns back to normal reproduction, and restarts the output of interface unit 37.
Skipped (forwarding operation, high-speed retrieval etc.) reproduction, and in this period, stopped output with the part that is different from selected format record.Can also carry out with the operation of selected form output false signal etc.
For example, shown in Fig. 8 B, when selecting the DV pattern, reproduce the DV recording section, skip the MPEG recording section, in this period, stop to the output of interface unit 37 with normal mode, and if desired, output DV false signal.Subsequently, when by search such as forwarding operation, high-speed retrieval and when detecting next DV recording section, operator scheme turns back to normal reproduction, and restarts the output of interface unit 37.
Therefore, put at any time when being connected to computer 11 when video equipment immediately, computer 11 also reads the driver that is used for DV.Then, as long as select " DV ", then avoided the problem of hang-up.
Otherwise; after in menu 52, selecting " HDV " and video equipment to be connected to computer 11; come in menu 52, to select " DV " if switch; after perhaps in menu 52, selecting " DV " and video equipment to be connected to computer 11; in menu 52, select " HDV " if switch, then have the possibility of computer 11 hang-ups.
Yet,,,, therefore do not go wrong because computer 11 reads the driver corresponding to the form that switches again if the user extracts IEEE cable once (from video equipment 100 or computer 11) and insertion once more even in the situation that above-mentioned switching is selected.Yet; if in menu 52, selected " automatically " and DV signal and mpeg signal to be recorded on the recording medium with mixing; then when each record format changes, extract and insert again cable and be difficult to, and unexpected problem of shutting down is still arranged for the user.
With reference to the special above situation that produces about video equipment 100 of the prior art of explaining of Fig. 9 to 14.Fig. 9 shows and selects " automatically " will be recorded in video/audio signal on the recording medium changes to the DV signal from mpeg signal at reproduction period situation as rabbit pattern (select " automatically ") and owing to hybrid recording in menu 52.
Beginning, from the video equipment 100 output mpeg signals of prior art, and computer 11 reads the driver that is used for MPEG corresponding to it.Yet when at reproduction period during, owing in computer 11, read and kept being used for the driver of MPEG, so in the shutdown that meets accident of this time point from video equipment 100 output DV signals.
Figure 10 has shown the situation with the changing pattern of opposite video/audio signal shown in Figure 9, promptly, it shows selects " automatically " as rabbit pattern (in menu 52 select " automatically "), and will be recorded in video/audio signal on the recording medium owing to hybrid recording in the situation of reproduction period from the DV signal change to mpeg signal.
Beginning, from video equipment 100 output DV signals, and computer 11 reads the driver that is used for DV corresponding to it.Yet, when at reproduction period during, owing in computer 11, read and kept being used for the driver of DV, in the shutdown that meets accident of this time point from video equipment 100 output mpeg signals.
Figure 11 has shown and selects " HDV " as rabbit pattern (in menu 52 select " HDV ") and because hybrid recording and will be recorded in video/audio signal on the recording medium changes to the DV signal from mpeg signal at reproduction period situation.
Beginning, from video equipment 100 output mpeg signals, and computer 11 reads the driver that is used for MPEG corresponding to it.Then, the video/audio signal that is recorded in the recording medium becomes the DV signal.Yet,, therefore export the false signal (MPEG false signal) of mpeg format because the rabbit pattern of video equipment 100 is " HDV ".Because computer 11 comes processing signals by MPEG driver that will be identical with the driver that is used to read, therefore the hang-up phenomenon does not appear.Yet, in this case,,, therefore be difficult to monitor relevant portion owing to become the MPEG false signal with the part of DV format record though can avoid hang-up.
Figure 12 has shown and selects " DV " as rabbit pattern (in menu 52 select " DV ") and because hybrid recording and will be recorded in video/audio signal on the recording medium in the situation of reproduction period from the DV signal change to mpeg signal.
Beginning, from video equipment 100 output DV signals, and computer 11 reads the driver that is used for DV corresponding to it.Then, the video/audio signal that is recorded in the recording medium becomes mpeg signal.Yet,, therefore export the false signal (DV false signal) of DV form because the rabbit pattern of video equipment 100 is " DV ".Because computer 11 comes processing signals by DV driver that will be identical with the driver that is used to read, therefore the hang-up problem does not appear.Yet, in this case,,, therefore be difficult to monitor relevant portion owing to become the DV false signal with the part of mpeg format record though can avoid hang-up.
Figure 13 shown selected " HDV " situation as rabbit pattern (select " HDV ") in menu 52, and its demonstration have only mpeg format video/audio signal recording in recording medium and since the user during reproducing mpeg signal faulty operation with the situation of rabbit mode switch to " DV ".
Beginning, from video equipment 100 output mpeg signals, and computer 11 reads the driver that is used for MPEG corresponding to it.Then,, switch to " DV ", therefore export the false signal (DV false signal) of DV form because the rabbit pattern of video equipment 100 is forced although on recording medium, only write down the video/audio signal of mpeg format.Because computer 11 comes processing signals by MPEG driver that will be identical with the driver that is used to read, therefore the problem of hang-up appears.
Figure 14 shown selected " DV " situation as rabbit pattern (select " DV ") in menu 52, and its demonstration have only the DV form video/audio signal recording in recording medium and since the user during reproducing the DV signal faulty operation etc. with the situation of rabbit mode switch to " HDV ".
Beginning, from video equipment 100 output DV signals, and computer 11 reads the driver that is used for DV corresponding to it.Then,, switch to " HDV ", therefore export the false signal (MPEG false signal) of mpeg format because the rabbit pattern of video equipment 100 is forced although on recording medium, only write down the video/audio signal of DV form.Because computer 11 comes processing signals by DV driver that will be identical with the driver that is used to read, therefore the problem of hang-up appears.
Be described in according to the method for avoiding the problem of hang-up in the video equipment 10 of the present invention with reference to Figure 15.In video equipment shown in Figure 15 10, beginning selects " HDV " as the rabbit pattern, and computer 11 reads the driver that is used for MPEG when connecting.Because the rabbit pattern is " HDV ", therefore export the signal of mpeg format and the format restriction that will not be recorded in the video/audio signal in the recording medium is mpeg format or DV form.In other words, when the video/audio signal of mpeg format has been recorded in the recording medium, the output mpeg signal.Under the situation of DV form, output MPEG false signal.
When the rabbit pattern switches to " DV " and during to computer 11 output DV signals by the user from " HDV ", video equipment 10 is controlled so that the connection that disconnects the IEEE1394 bus between video equipment 10 and the computer 11 once, and reconnects them later at the fixed time once more.
By carrying out such control, in the moment that reconnects, computer 11 can read driver and normal the reception from the DV signal of video equipment 10 outputs that is used for DV.Just can not carry out the disconnection of video equipment 10 and the control that reconnects in fact though do not need to extract and insert IEEE 1394 cables, in computer 11, obtain and extracting and inserting the identical effect of effect that obtains in the situation of IEEE 1394 cables.
Although Figure 15 has shown the video/audio signal that has write down the HDV form in recording medium, the user has switched to the rabbit pattern example of " DV " for some reason from " HDV ".Yet; although even in recording medium, writing down the video/audio signal of DV form; but the user switches to the rabbit pattern the reverse situation of " HDV " from " DV " for some reason, also can avoid the problem of hang-up by the control similar to video equipment 10.
Also can construct equipment in the following manner, promptly, when the rabbit pattern is set to " automatically ", if it is (or opposite from the HDV change of format to the DV form to be recorded in the form of the video/audio signal in the recording medium, from the DV change of format to the HDV form), then video equipment 10 detects such variation and the control of making above-mentioned disconnection and reconnecting.
Realize the process of processing with reference to the flow chart description of Figure 16 video equipment 10 shown in Figure 15.In this example, the interface control unit 36 that detects the video equipment 10 that the form of the video/audio signal that will export switched reset constitute interface unit 37 in fact IC (integrated circuit) once, and at the fixed time, state is reset in cancellation.Next, interface control unit 36 itself detect since reset interface unit 37 that cause, with the disconnection (shutoffs) of IEEE 1394 buses, and execution and extract the similar processing of processing under the cable situation in the normal condition execution.
In addition, next, interface control unit 36 itself detect since cancellation reset interface unit 37 that cause, to the connection of IEEE 1394 buses, and carry out and the similar processing of processing under normal condition execution insertion cable situation.
As the above-mentioned method that disconnects from IEEE 1394 buses, following method is for example arranged, though it depends on the structure of interface control unit 36.
(1) video equipment disconnects from IEEE 1394 buses by stopping the IC corresponding to interface unit 37.
(2) video equipment disconnects from IEEE 1394 buses by stopping to comprise the interface control unit 36 of CPU 41.
(3) video equipment disconnects from IEEE 1394 buses by cutting out the power supply of video equipment 10 itself.In this case, video equipment 10 need have the power subsystem of the pass that is used to control power supply/open.
In the flow chart of Figure 16,, detect the rabbit pattern and whether switch at first at step S30.In this detects, detect the user and switch to " DV " or switch to the handover operation of " HDV " from " DV " from " HDV " by the actions menu display screen.Under the situation of " automatically ", the form of the video/audio signal of detection record in recording medium switches.
The processing of repeated execution of steps S30 in the given time is switched (step S30 is a "No") up to pattern or form.During the switching of the form of the video/audio signal that maybe will export when the switching that detects the rabbit pattern (step S30 is a "Yes"), carry out the processing of extracting cable at step S32.In this case, not physically to extract IEEE 1394 cables, and be meant and disconnect from cellular logic ground from video equipment 10 or computer 11.For example, such cable extracts that to handle be the processing that is used to the offset signal that stops to be scheduled to.More particular forms of such processing are described with reference to Figure 17 and 18.
Extract when handling when carry out cable in video equipment 10, at step S34, whether video equipment 10 detects (logically) and has extracted cable.
When detecting cable at step S34 and logically extract (step S34 is a "Yes"), carry out the respective handling that cable is extracted at step S36.This processing is similar to the processing of extracting under the cable situation in normal condition.
At step S38, video equipment 10 reprocessings circulate a scheduled time, postpone next processing of step S40 thus.Carry out such delay and handle the situation of avoiding such, that is, if it is too fast to carry out the processing of extracting/inserting cable, then computer 11 sides' detection is handled and is difficult to catch up with, and computer 11 final definite processing of extracting/inserting cable that do not have to carry out.
In step S40, carry out the processing of inserting cable.In this case, be not meant video equipment 10 and computer 11 by IEEE 1394 cable physical connections, and be meant that the logic of IEEE 1394 buses reconnects.For example, such cable insertion processing is the processing that is used to export predetermined offset signal.More particular forms of such processing are described with reference to Figure 17 and 18.
When carry out inserting the processing of cable at step S40, at step S42, whether video equipment 10 detects (logically) and has inserted cable.
When the logic that detects cable at step S42 is inserted (step S42 is a "Yes"), carry out the respective handling that cable inserts at step S44.It is similar that this handles the performed processing of video equipment under the situation with insertion cable under normal condition 10.
Be described in the transmission and the reception of signal in CPU shown in Figure 4 41, link unit 42 and the PHY unit 43 with reference to Figure 17.The LPS signal has shown the power rating of link unit 42.For example, if the value of LPS signal equals " 1 ", this means that link unit 42 is (opening) of activating.If equal " 0 ", this means that link unit 42 is (passes) that stop.
The CLKL signal provides the clock information to link unit 42.If the value of CLKL signal equals " 1 ", this means that clock has offered link unit 42.If equal " 0 ", this means to stop to provide clock.If the XRSTL signal equals " 1 ", then cancel the Reset Status of link unit 42 and clock is provided to link unit 42.If equal " 0 ", then keep the Reset Status of link unit 42 and stop clock being provided to link unit 42.
If the XRSTP signal equals " 1 ", then cancel the Reset Status of PHY unit 43 and clock is provided to PHY unit 43.If equal " 0 ", then keep the Reset Status of PHY unit 43 and stop clock being provided to PHY unit 43.
Describe the disconnection of video equipment 10 control IEEE 1394 buses of the present invention and the process that reconnects with reference to Figure 18 A and 18B, and Figure 18 A and 18B illustrate the transmission timing of each signal shown in Figure 17.The sequential of each signal in the video equipment of Figure 18 A demonstration prior art.Figure 18 B shows the sequential of each signal in the video equipment 10 of the present invention.Under Figure 18 A and 18B both of these case, suppose by independent chip to constitute CPU 41, link unit 42 and PHY unit 43 (that is, using 3 chip structures shown in Figure 4).
In Figure 18 A, at first, physically extract IEEE 1394 cables.This is illustrated to low level variation from high level by the PHYACT signal.Then, in response to extracting of IEEE 1394 cables, the LPS signal becomes " 0 " from " 1 ".This is because under the situation of considering another equipment reference link state on same IEEE 1394 buses, needs to show the fact that causes stopping the link unit owing to extracting of cable.
Then, the XRSTL signal becomes " 0 " from " 1 ", in fact stops link unit (replacement link unit also stops the reception of clock) thus.In addition, at the fixed time after, the CLKL signal becomes " 0 " from " 1 ", stopping thus providing clock to the link unit.
Then, the XRSTP signal becomes " 0 " from " 1 ", stops PHY unit (replacement PHY unit also stops the reception of clock) thus.
At this time point, video equipment disconnects from the IEEE 1394 bus physical ground that connect so far.For example, even carry out the operation that shows a series of equipment that connect, do not show this video equipment by another equipment on the network yet.
Then, when physically inserting IEEE 1394 cables when (the PHYACT signal becomes high level from low level), detect this situation, and each signal is with the order opposite with above-mentioned order, promptly, turn back to " 1 " from " 0 " with the order of XRSTP signal → CLKL signal → XRTSTL signal → LPS signal.By such control, activate physical layer and data link layer with predetermined order, video equipment 100 is connected to IEEE 1394 buses.At this time point, computer 11 reads the driver according to the form of the rabbit pattern of video equipment 100.
In Figure 18 A, in a single day only by physically extracting and insert IEEE 1394 cables, video equipment disconnects once from the IEEE1394 bus, and reconnects, and computer 11 just reads suitable driver.Yet,, can not obtain such effect by physically extracting and insert IEEE 1394 cables according to the present invention yet.
With reference to Figure 18 B above-mentioned situation is described.As described in Figure 18 A, when physically extracting and inserting the IEEE1394 cable, the PHYACT signal becomes low level from high level.Yet, physically do not extract and insert IEEE 1394 cables owing to do not carry out among the present invention here, so the PHYACT signal does not change.
According to video equipment 10, in interface control unit 36, when detecting the user by menu operation Switch Video reproduction mode (for example from " HDV " to " DV " or from " DV " to " HDV "), perhaps when the rabbit pattern is set to " automatically " and detects the form that is recorded in the video/audio signal in the recording medium changed, interface unit 37 (link unit 42 and PHY unit 43) is reset once, and at the fixed time, cancel Reset Status again.
This processing will be described in more detail.When detecting the user and switched rabbit pattern (for example from " HDV " to " DV " or from " DV " to " HDV "), perhaps when the rabbit pattern was set to " automatically " and detects the form that is recorded in the video/audio signal in the recording medium changed, video equipment 10 at first became " 0 " with the LPS signal from " 1 ".
This is because under the situation of considering another equipment reference link state on same IEEE 1394 buses, and link unit 42 stops the fact of this operation before need being presented at video equipment and disconnecting from IEEE 1394 buses.If link unit 42 is in non-operation mode, the invalid response owing to from the outside makes link unit 42 not carry out the inquiry from the upper strata, and can prevent to make the situation of illegal response when state transformation.
After changing the LPS signal by this way, the XRSTL signal becomes " 0 " from " 1 ", stops link unit (that is, replacement link unit and stop the reception of clock) thus.In addition, then, the CLKL signal becomes " 0 " from " 1 ", stops thus providing clock to the link unit.
In addition, then, the XRSTP signal becomes " 0 " from " 1 ", stops PHY unit (that is, replacement PHY unit and stop the reception of clock) thus.
By above processing, video equipment 10 disconnects from the IEEE 1394 bus logic ground that connected so far.For example, even carry out the operation that shows a series of equipment that connect, do not show this video equipment by another equipment on the network yet.
The XRSTP signal remains on level "0" at the fixed time.This scheduled time is that enough computer 11 sides detect video equipment 10 from the disconnection of IEEE 1394 buses, and makes the driver that reads so far invalid so that the time of reply video equipment 10 (for example, from predetermined memory area deletion driver).
At the fixed time, with above-mentioned opposite order, promptly, each signal is turned back to " 1 " from " 0 " with the order of XRSTP signal → CLKL signal → XRSTL signal → LPS signal.By such control, with predetermined order activation physical layer and the function in the data link layer, video equipment is IEEE 1394 buses once more.At this time point, computer reads the form driver according to the rabbit pattern of video equipment 10.
According to the present invention, when outputing to the change of format of video equipment 10, virtual controlling from/to the disconnection of IEEE1394 bus/reconnect.Therefore, in computer 11, can read corresponding appropriate drive program, the feasible inconvenience that can avoid such as hang-up in response to it.
Though in this example under hypothesis, the processing of disconnection/reconnect has been described by independent chip (that is, 3 chip structures) structure CPU 41, link unit 42 and PHY unit 43, can also be by other structures realization identical operations.For example, if chip structure changes, there is the unit that is used to be provided with or is used to cancel the possibility that the unit of replacement changes.
Described the embodiment of the invention though be connected to the example of IEEE 1394 buses at video equipment 10 and computer 11, technological thought of the present invention can also be applied to other network and connect.In addition, not only the present invention wired connection can be applied to, and wireless connections can be applied to.
The basic structure of computer 11 is described with reference to Figure 19.Computer 11 comprises CPU (CPU) 71; ROM (read-only memory) 72; RAM (random access memory) 73; External memory 74; Input unit 75; Display unit 76; Audio output unit 77; Interface unit 78; With the bus 79 that is used to interconnect these element.
The operation of CPU 71 each element of control is controlled the transmission and the reception of data in those element, and is executed instruction according to program.The image/Audio Processing such as decoding processing of the video/audio signal that provides from video equipment 10 for example, also is provided under the control of CPU 71 as required.
The program of carrying out, the data etc. that are used for such program are loaded into RAM 73.When video equipment 10 connected by IEEE 1394 buses, the driver of selecting according to the video/audio signal that provides from video equipment 10 also loaded (reading) to RAM 73.Processing by driver is input to computer 11 from the video/audio signal of video equipment 10.
For example, audio output unit 77 is loud speakers.Export from audio output unit from the audio signal that video equipment 10 sends, and reproduce the sound that writes down by video equipment 10.
Provide interface unit 78 to realize the connection of video equipment to IEEE 1394 buses.The video/audio signal that provides from video equipment 10 sends to driver by interface unit 78, stands the decoding processing of needs etc., outputs to display unit 76 and audio output unit 77 then.
For example, computer 11 is personal computers.Yet as long as equipment has top element and passes through predetermined special-purpose software (driver) from video equipment 10 receiver, videos/audio signal, any equipment can be used as computer 11.
The one of ordinary skilled in the art will be appreciated that and can carry out modification on various forms and the details to the present invention according to the designing requirement in the scope of the invention that is limited by appended claims or equivalent and others.
Claims (22)
1. video equipment comprises:
Signal control device is used for multiple form output image signal;
Interface arrangement is used for described video equipment is connected to computer; With
Interface control unit is used to control so that use described interface arrangement that described picture signal is sent to described computer,
Wherein, be connected under the situation of described computer at video equipment by described interface arrangement, when switching the form of described picture signal, described interface control unit is controlled described interface arrangement with the ways of connecting that does not change physical connection state ground and logically disconnect with described computer, and at the fixed time, once more video equipment logically is connected to described computer and does not change physical connection state.
2. equipment as claimed in claim 1, wherein, the described scheduled time is set to be equal to or greater than time of time of disconnection that computer can detect the logic of described connection.
3. equipment as claimed in claim 1, wherein, described interface arrangement is IEEE 1394 interfaces,
Described interface control unit also comprises:
The data link layer management devices is used for the function of management data link layer; With
The physical layer management device is used for the function of managing physical layer;
Wherein realize the disconnection of the described logic that is connected and reconnecting of logic with described physical layer management device by controlling described data link layer management devices.
4. equipment as claimed in claim 3, wherein
Described interface control unit is controlled, so that
By the function that stops described data link layer management devices and described physical layer management device carry out described logic disconnection and
Carry out reconnecting of described logic by the described function that stops that restarting described data link layer management devices and described physical layer management device.
5. equipment as claimed in claim 3, wherein
In described data link layer management devices and the described physical layer management device each all is made of a chip, and
Described interface control unit
Carry out the disconnection of described logic by each described chip of resetting, and
Carry out reconnecting of described logic by the Reset Status of cancelling each described chip.
6. equipment as claimed in claim 5, wherein
Described interface control unit
Replacement is corresponding to the chip of described data link layer management devices, when the disconnection of described logic, reset then corresponding to the chip of described physical layer management device and
Cancellation is corresponding to the Reset Status of the chip of described physical layer management device, then when the reconnecting of described logic cancellation corresponding to the Reset Status of the chip of described data link layer management devices.
7. equipment as claimed in claim 3, wherein
In described data link layer management devices and the physical layer management device each all constitute by a chip and
Described interface control unit
Carry out the disconnection of described logic by the described chip of resetting, and
Carry out reconnecting of described logic by the Reset Status of cancelling a described chip.
8. equipment as claimed in claim 1, wherein
The form switching of described picture signal is switching or the switching from the HDV form to the DV form from the DV form to the HDV form.
9. equipment as claimed in claim 1, wherein
Make the switching of the form of described picture signal by user instruction.
10. equipment as claimed in claim 1, wherein
Regardless of the difference of described form, all with described picture signal record on same recording medium and
The described picture signal that is recorded in the different-format in the described recording medium by sequential reproduction is carried out the switching of the form of described picture signal.
11. a video output control method comprises:
Forwarding step is controlled so that can send to computer by being used for that video equipment is connected to interface arrangement of computer with the picture signal of multiple form output; With
Logically disconnect/reconnect step, be connected under the situation of described computer at video equipment at described forwarding step, when switching the form of described picture signal, control described interface arrangement, under the situation that does not change physical connection state, logically disconnect and being connected of described computer, and after predetermined period, once more video equipment logically is connected to described computer and does not change physical connection state.
12. method as claimed in claim 11, wherein, described predetermined period is set to be equal to or greater than time of time of disconnection that described computer can detect the logic of described connection.
13. method as claimed in claim 11, wherein, described interface arrangement is an I EEE1394 interface,
Describedly logically disconnect/reconnect step and also have
The data link layer management process is used for the function of management data link layer; With
The physical layer management step is used for the function of managing physical layer, and
Realize the disconnection of the described logic that is connected and reconnecting of logic by controlling described data link layer management process with operation in the described physical layer management step.
14. method as claimed in claim 13, wherein
Logically disconnect/reconnect in the step described:
By the operation that stops described data link layer management process and described physical layer management step carry out described logic disconnection and
Carry out reconnecting of described logic by the described operation that stops of restarting described data link layer management process and described physical layer management step.
15. method as claimed in claim 13, wherein
In described data link layer management process and the described physical layer management step each all realize by chip, and
Logically disconnect/reconnect in the step described,
By each described chip of resetting carry out described logic disconnection and
Carry out reconnecting of described logic by the Reset Status of cancelling each described chip.
16. method as claimed in claim 15, wherein
Logically disconnect/reconnect in the step described,
Replacement is used to realize the chip of described data link layer management process, when the disconnection of described logic, reset then the chip be used to realize described physical layer management step and
Cancellation is used to realize the Reset Status of the chip of described physical layer management step, and cancellation is used to realize the Reset Status of the chip of described data link layer management process when the reconnecting of described logic then.
17. method as claimed in claim 13, wherein
In described data link layer management process and the described physical layer management step each all realize by chip, and
Logically disconnect/reconnect in the step described,
Carry out the disconnection of described logic by the described chip of resetting, and
Carry out reconnecting of described logic by the Reset Status of cancelling a described chip.
18. method as claimed in claim 11, wherein
The form switching of described picture signal is switching or the switching from the HDV form to the DV form from the DV form to the HDV form.
19. method as claimed in claim 11, wherein
Make the switching of the form of described picture signal by user instruction.
20. method as claimed in claim 11, wherein
Regardless of the difference of described form, all with described picture signal record on same recording medium and
The described picture signal that is recorded in the different-format in the described recording medium by sequential reproduction is carried out the switching of the form of described picture signal.
21. playback control method, be used in to have and come the recoding/reproduction signal, comprising so that multiple signal format is mixed recoding/reproduction function that ground exists and is established to being connected and exporting in the recording/reproducing apparatus of communication function of reproducing signal of external equipment by recording medium:
Forwarding step is controlled so that can send to described external equipment by the interface arrangement that is used for described recording/reproducing apparatus is connected to described external equipment with the picture signal of multiple form output;
Logically disconnect/reconnect step, in described forwarding step, be connected under the situation of described external equipment at recording/reproducing apparatus, when switching the form of described picture signal, control described interface arrangement, under the situation that does not change physical connection state, logically disconnect and being connected of described external equipment, and after predetermined period, once more recording/reproducing apparatus logically is connected to described external equipment and does not change physical connection state; With
The reproducing control step is controlled the described reproduction operation of described recording/reproducing apparatus,
Wherein, in described reproducing control step, when reproduction mode has been arranged to the specific reproduction pattern, the reproduction of skipping the recording section of the form that does not correspond to described reproduction mode.
22. playback control method, have to come the recoding/reproduction signal to make multiple signal format mix recoding/reproduction function that ground exists by recording medium and be established to being connected and exporting in the recording/reproducing apparatus of communication function of reproducing signal of external equipment, comprising:
Forwarding step is controlled so that can send to described external equipment by the interface arrangement that is used for described recording/reproducing apparatus logically is connected to described external equipment with the picture signal of multiple form output;
Logically disconnect/reconnect step, in described forwarding step, logically be connected under the situation of described external equipment at recording/reproducing apparatus, when switching the form of described picture signal, control described interface arrangement, under the situation that does not change physical connection state, logically disconnect and being connected of described external equipment, and after predetermined period, once more recording/reproducing apparatus logically is connected to described external equipment and does not change physical connection state; With
Video output controlled step is controlled the video output function of described recording/reproducing apparatus,
Wherein, in video output controlled step, when reproduction mode had been arranged to the specific reproduction pattern, output was not corresponding to the false signal of the form of described reproduction mode when reproduction corresponds to the recording section of form of described reproduction mode.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP299506/04 | 2004-10-14 | ||
| JP2004299506A JP4363300B2 (en) | 2004-10-14 | 2004-10-14 | Video apparatus and video output control method |
| JP369818/04 | 2004-12-21 | ||
| JP042914/05 | 2005-02-18 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1780386A CN1780386A (en) | 2006-05-31 |
| CN100515062C true CN100515062C (en) | 2009-07-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005101140109A Expired - Fee Related CN100515062C (en) | 2004-10-14 | 2005-10-13 | Video apparatus, video output control method, and reproduction control method |
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|---|---|
| JP (1) | JP4363300B2 (en) |
| CN (1) | CN100515062C (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012047842A (en) * | 2010-08-25 | 2012-03-08 | Seiko Epson Corp | Image display device, and image display method |
| JP6496254B2 (en) | 2016-01-21 | 2019-04-03 | トヨタ自動車株式会社 | Reproduction data output device and computer program |
| CN106125656B (en) * | 2016-08-31 | 2019-04-23 | 余超 | Intelligent control anti-misoperation system and its method |
-
2004
- 2004-10-14 JP JP2004299506A patent/JP4363300B2/en not_active Expired - Fee Related
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- 2005-10-13 CN CNB2005101140109A patent/CN100515062C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP2006113766A (en) | 2006-04-27 |
| CN1780386A (en) | 2006-05-31 |
| JP4363300B2 (en) | 2009-11-11 |
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