CN103596035B - A kind of system and method utilizing top box of digital machine to record DVB code stream - Google Patents
A kind of system and method utilizing top box of digital machine to record DVB code stream Download PDFInfo
- Publication number
- CN103596035B CN103596035B CN201310539874.XA CN201310539874A CN103596035B CN 103596035 B CN103596035 B CN 103596035B CN 201310539874 A CN201310539874 A CN 201310539874A CN 103596035 B CN103596035 B CN 103596035B
- Authority
- CN
- China
- Prior art keywords
- recording
- top box
- control instruction
- record
- digital machine
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000000034 method Methods 0.000 claims abstract description 13
- 230000005540 biological transmission Effects 0.000 claims description 53
- 238000001514 detection method Methods 0.000 claims description 9
- 238000005538 encapsulation Methods 0.000 claims description 8
- 238000004891 communication Methods 0.000 claims description 7
- 230000000051 modifying Effects 0.000 claims description 6
- 238000004458 analytical method Methods 0.000 abstract description 6
- 239000000203 mixture Substances 0.000 abstract description 4
- 238000001914 filtration Methods 0.000 description 3
- 230000036593 pulmonary vascular resistance Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000001351 cycling Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
Abstract
The invention discloses a kind of system and method utilizing top box of digital machine to record DVB code stream, including controlling PC and top box of digital machine, described control PC, mainly it is made up of recording control module, for generating recording control instruction, and control instruction is sent to top box of digital machine by RS 232 interface, and receive, process data and the information of top box of digital machine feedback, built-in stream-recording/the transport module of described top box of digital machine, main by signal demodulation module, SDRAM, FLASH, Tuner, Ethernet chip, USB interface, RS 232 interface and audio-video interface composition.Compared with existing system, the present invention extends the function of top box of digital machine, provide a kind of low cost, practicality and convenient DVB stream-recording approach, user not only can be facilitated to collect, preserve the program oneself liked, also provide in real time for professional and technical personnel, off-line code stream analysis condition.
Description
Technical field
The present invention relates to a kind of digital television techniques field, particularly relate to one and utilize top box of digital machine to record DVB
The system and method for code stream.
Background technology
Along with digital television techniques is the most ripe, Digital Cable Television System in the past end segment mesh coding, multiplexing,
Modulation defines a complicated DVB bit stream system to links such as terminal top box of digital machines.Original number
The information such as word image, audio frequency and video are encoded or packing processes and forms DVB transmission code stream, and DVB transmits
Critical data field in code stream must be accurate, to guarantee that top box of digital machine terminal can be properly received,
Otherwise can directly influence the transmission quality of Digital Cable Television System.DVB transmission code stream once goes wrong,
Will affect user uses top box of digital machine to watch program, at this time, it may be necessary to be analyzed DVB transmission code stream
Detection, including analyzing TS pack arrangement, TS bag size, PSI/SI table information, audio, video data, PCR
Shake, crc error and TS bag seriality counting etc., to correct the mistake in DVB transmission code stream.Therefore,
The most quickly and conveniently obtain original DVB transmission code stream to become and seem and be even more important.And generally use at present
The code stream analysis instrument of specialty carries out recording and the on-line analysis of DVB transmission code stream, these professional equipment prices
Costliness, remotely carries inconvenience, and needs professional and technical personnel to operate.
Developing rapidly of top box of digital machine industry so that top box of digital machine becomes indispensable many matchmakers in family
Body information terminal, and develop towards directions such as amphicheirality, low cost, multi-functional, multipurpose, many services.
But at present in addition to PVR top box of digital machine, common top box of digital machine does not have the merit of recording TV program
Can, PVR top box of digital machine price comparison is expensive, if ordinary numbers Set Top Box can provide recording to like TV
The function of program, then the TV programme that oneself is liked just can be saved as the video literary composition that can watch at any time by user
Part, and do not limited by specific reproduction time, add a kind of new functional experience for user.
Summary of the invention
The purpose of the present invention is that and solves the problems referred to above, it is provided that a kind of quick, practical, low cost and
Top box of digital machine is utilized to record the system and method for DVB code stream.
To achieve these goals, the technical solution used in the present invention is: one utilizes top box of digital machine to record
The system of DVB code stream, including controlling PC and top box of digital machine, described control PC is connect by RS-232
Mouth is connected with top box of digital machine, and described control PC is mainly made up of recording control module, is used for generating recording
Control instruction, and control instruction is sent to top box of digital machine by RS-232 interface, and receive, process number
The data of word machine top box feedback and information, the built-in stream-recording/transport module of described top box of digital machine, code stream is recorded
System/transport module mainly by signal demodulation module, SDRAM, FLASH, Tuner, Ethernet chip,
USB interface, RS-232 interface and audio-video interface composition, described SDRAM, FLASH, Tuner, Ethernet
Interface chip, USB interface, RS-232 interface, audio-video interface electrically connect with signal demodulation module respectively；
As preferably, described top box of digital machine receives and controls the recording control instruction that PC sends over, then
Record the code stream specifying frequency according to command request, and start the stream-recording module of top box of digital machine end, will
The TS data that top box of digital machine demodulates out are stored in SDRAM, start the code stream of top box of digital machine end simultaneously
Transport module, according to command request, is sent to code by the interface of Ethernet chip by the code stream of recording
Stream real time/off-line is analyzed on PC, or by USB interface, the code stream of recording is sent to movable storage device
In；
As preferably, described recording control instruction include data recording type, record frequency, record size/time
Between select, record the information such as size, recording time, transmission means, storing path, serial communication port,
Wherein data recording type includes original TS code stream and PSI/SI code stream, and wherein transmission means includes Ethernet
Transmission, USB transmission；
As preferably, described signal demodulation module is mainly made up of decoding chip and demodulation chip；
A kind of utilize top box of digital machine record DVB code stream method, including control PC record control flow and
Top box of digital machine stream-recording/transport module flow process,
Control flow recorded by described control PC, comprises the following steps,
A, arrange recording control instruction parameter, by PC end record control software visualization interface, permissible
Relevant recording is set and controls parameter, including data recording type, record frequency, record size/selection of time,
Record the information such as size, recording time, transmission means, storing path, serial communication port,
Control instruction parameter is recorded in b, check, checks the recording control instruction parameter arranged, to judge
The parameter arranged is the most wrong, if checking unsuccessfully, then points out failure cause, and requires to re-start setting,
Control instruction is recorded in c, encapsulation, recording control instruction parameter is entered according to recording control instruction protocol requirement
Row encapsulation,
D, detection RS-232 port, it is the most normal that detection controls end PC RS-232 port, as port is examined
Dendrometry loses, then carry out pointing out failure cause, and require to re-start Port detecting,
Control instruction is recorded in e, transmission, and the recording control instruction after encapsulating is sent to by RS-232 interface
Digital set-top box system,
F, recording state information receive and display, after recording control instruction is sent, records and control software then
Start to receive the recording state information data of top box of digital machine end feedback, and show on visualization interface；
Described top box of digital machine stream-recording/transport module flow process, comprises the following steps,
A, control instruction resolve, after top box of digital machine termination receives control instruction data, according to control instruction number
Resolve according to agreement, obtain control instruction related data information, including data recording type, recording
The information such as frequency, recording size/selection of time, recording size, recording time, transmission means, storing path,
B, carrying out frequency modulation and demodulation to recording frequency, top box of digital machine end signal tuning demodulation module first will record
Frequency processed is tuned to intermediate-freuqncy signal, and this intermediate-freuqncy signal is passed to demodulation chip is demodulated, to demodulate
TS bag data,
C, startup are recorded and the task of transmission, and recording task completes the recording of DVB code stream, and transmission task completes DVB
The transmission of code stream, after recording and being sent completely, terminates to record and transmission task respectively.
Compared with prior art, it is an advantage of the current invention that: one provided by the present invention utilizes teaching machine top
The system of DVB code stream recorded by box, on the basis of possessing top box of digital machine basic function, extends teaching machine
The function of top box, it is provided that a kind of low cost, practicality and convenient DVB stream-recording approach is the most permissible
The program facilitate user to collect, preserving oneself and liking, also provides in real time for professional and technical personnel, off-line code stream
Analysis condition.
Accompanying drawing explanation
Fig. 1 is the system construction drawing of the present invention；
Fig. 2 is that the present invention controls PC recording control flow chart.
Fig. 3 is the top box of digital machine stream-recording/transfer process figure of the present invention.
Detailed description of the invention
Embodiment: a kind of system utilizing top box of digital machine to record DVB code stream, is possessing top box of digital machine base
On the basis of this function, it is provided that a kind of low cost, practicality and convenient DVB stream-recording approach, not only
User can be facilitated to collect, preserve the program oneself liked, also provide in real time for professional and technical personnel, from
Line analysis code stream creates condition.The present invention utilize top box of digital machine record DVB code stream below in conjunction with the accompanying drawings
System be described in detail.
The system structure of the present invention, as shown in Figure 1: native system is mainly by controlling PC and top box of digital machine two
Part composition, is wherein controlled PC and is connected with top box of digital machine by RS-232 interface, control PC and pass through
Visualization recording control software is installed and generates control instruction, and by RS-232 interface communication by control instruction
It is sent to digital set-top box system, digital set-top box system carries out signal frequency modulation, demodulation according to command request,
Extracting TS bag data, and carry out data filtering according to command request, the TS bag data after then filtering are deposited
Being stored in jumbo circulation Buffer, meanwhile, digital set-top box system starts data and sends task, from following
Ring Buffer reads TS bag data, both by USB interface, TS bag data can be written to the shifting of access
In dynamic storage device, it is also possible to by Ethernet interface, TS bag data are sent to code stream real time/off-line and analyze PC
On machine.Stream-recording and sending function is possessed by the built-in stream-recording/transport module of top box of digital machine.Code
Stream is recorded module and is responsible for recording code stream according to control instruction, and bit stream module is responsible for will record according to control instruction
The code stream of system sends to specifying target device.Stream-recording module and transport module are respectively by independent two tasks
Management, both by read-write common management cycle Buffer of pointer, be efficiently completed bit stream data recording and
Send.
A kind of utilize top box of digital machine record DVB code stream method, including control PC record control flow and
Top box of digital machine stream-recording/transport module flow process,
Control flow recorded by described control PC, as in figure 2 it is shown, comprise the following steps:
1, recording control instruction parameter is set.The visualization interface controlling software is recorded by PC end, permissible
Relevant recording is set and controls parameter, including data recording type, record frequency, record size/selection of time,
Record the information such as size, recording time, transmission means, storing path, serial communication port, wherein record
Data type includes original TS code stream and PSI/SI code stream, and transmission means includes that Ethernet transmission and USB pass
Defeated.
2, recording control instruction parameter is checked.The recording control instruction parameter arranged is checked, to judge
The parameter arranged is the most wrong, if checking unsuccessfully, then points out failure cause, and requires to re-start setting.
3, control instruction is recorded in encapsulation.Recording control instruction parameter is entered according to recording control instruction protocol requirement
Row encapsulation.
4, detection RS-232 port.It is the most normal that detection controls end PC RS-232 port, as port is examined
Dendrometry loses, then carry out pointing out failure cause, and require to re-start Port detecting.
5, recording control instruction is sent.Recording control instruction after encapsulation is sent to by RS-232 interface
Digital set-top box system.
6, recording state information receives and display.After recording control instruction is sent, records and control software then
Start to receive the recording state information data of top box of digital machine end feedback, and show on visualization interface.
Described top box of digital machine end stream-recording/transport module flow process, as it is shown on figure 3, comprise the following steps:
1, control instruction resolves.After top box of digital machine termination receives control instruction data, according to control instruction number
Resolve according to agreement, obtain control instruction related data information, including data recording type, recording
The information such as frequency, recording size/selection of time, recording size, recording time, transmission means, storing path.
2, recording frequency is carried out frequency modulation and demodulation.Top box of digital machine end signal tuning demodulation module first will record
Frequency processed is tuned to intermediate-freuqncy signal, and this intermediate-freuqncy signal is passed to demodulation chip is demodulated, to demodulate
TS bag data.
3, recording and the task of transmission are started.Recording task completes the recording of DVB code stream, and transmission task completes DVB
The transmission of code stream, after recording and being sent completely, terminates to record and transmission task respectively.
Recording task comprises the following steps:
Step 1: extract TS data.Digital set-top box system passes through DMUX module extract real-time TS original number
According to, these original TS data include audio, video data, SI/PSI table data and private data.And will not be right
Mistake in TS data checks and repairs.
Step 2: filter TS data.Digital set-top box system carries out TS data filtering according to data recording type,
As being set to SI/PSI data, then abandon non-SI/PSI data, as RAW data, do not filter.
Step 3: TS data are stored in circulation Buffer.When starting recording task, distribute a great Rong
The circulation Buffer of amount, is used for storing TS data.This circulation Buffer is controlled respectively by reading and writing two pointers,
When writing TS data in circulating Buffer, write pointer moves according to the length of write.From circulation Buffer
During middle reading TS data, read pointer moves according to the length read in.So that the Buffer space read
New TS data can be continued to write to again, to reach the effect recycled.
Step 4: judge whether recording completes.If using recording size to judge, then it is stored in TS data
During circulation Buffer, add up all sizes being stored in TS data, and the total size of TS data that is stored into and control
System instruction set recording size contrast, if greater than equal to time, then be judged as that recording completes；If
Use recording time to judge, then record system time at that time when starting to record, when being stored in TS data every time
Also recording present system time, two system times one subtract and i.e. can obtain recording duration, by this recording duration with
The recording time that control instruction sets contrasts, and if greater than being equal to, is then judged as that recording completes.If
Record and not yet complete, then continue cycling through extraction TS data.
Step 5: terminate to record.As recorded, it is immediately finished recording task, and recording is completed mark puts
Become effectively.
Transmission task comprises the following steps:
Step 1: set up with target device and be connected.Transmission task determines to adopt according to the transmission means of control instruction
Using which kind of transmission means, if using USB transmission, then in destination path, creating file；If use with
Net very much transmission, then set up sock with target device and be connected, and be ready for sending TS data.
Step 2: send TS data.Transmission task constantly reads TS data from circulation Buffer, and moves
The data read can be written to file destination by USB interface by dynamic circulation Buffer read pointer successively
In, it is also possible to successively the data read are sent on target PC by sock communication.
Step 3: judge whether transmission completes.Only complete mark effectively in recording, and write circulation Buffer
The total size of TS data and the TS data read from circulation Buffer the most equal in magnitude, just think TS number
According to being sent completely.
Step 4: terminate to send.As being sent completely, it is immediately finished transmission task, and mark will be sent completely puts
Become effectively.
By a kind of system utilizing top box of digital machine to record DVB code stream provided by the present invention, possessing number
On the basis of word machine top box basic function, extend the function of top box of digital machine, it is provided that a kind of low cost,
Practical and convenient DVB stream-recording approach, not only can facilitate user to collect, preserve the joint oneself liked
Mesh, also provides in real time for professional and technical personnel, off-line code stream analysis condition.
Above to a kind of system and method utilizing top box of digital machine to record DVB code stream provided by the present invention,
Having carried out exhaustive presentation, principle and the embodiment of the present invention are explained by specific case used herein
Stating, the explanation of above example is only intended to help to understand method and the core concept thereof of the present invention；Meanwhile,
For one of ordinary skill in the art, according to the thought of the present invention, in detailed description of the invention and range of application
On all will change, to the change of the present invention with to improve to be possible, without beyond appended claims
Requiring the spirit and scope of defined, in sum, this specification content should not be construed as the limit to the present invention
System.
Claims (5)
1. utilize top box of digital machine to record a system for DVB code stream, including controlling PC and teaching machine top
Box, described control PC is connected with top box of digital machine by RS-232 interface, it is characterised in that: described control
PC processed is mainly made up of recording control module, is used for generating recording control instruction, and control instruction is led to
Cross RS-232 interface and be sent to top box of digital machine, and receive, process data and the letter of top box of digital machine feedback
Breath, the built-in stream-recording/transport module of described top box of digital machine, stream-recording/transport module is mainly by signal
Demodulation module, SDRAM, FLASH, Tuner, Ethernet chip, USB interface, RS-232 interface
With audio-video interface form, described SDRAM, FLASH, Tuner, Ethernet chip, USB interface,
RS-232 interface, audio-video interface electrically connect with signal demodulation module respectively,
Described recording control module is configured to: arranges recording control instruction parameter, records control by PC end
The visualization interface of software processed, arranges relevant recording and controls parameter, including data recording type, records frequency
Point, recording size/selection of time, recording size, recording time, transmission means, storing path, serial ports
PORT COM information；Check and record control instruction parameter, the recording control instruction parameter arranged is checked,
The most wrong to judge the parameter arranged, if checking unsuccessfully, then point out failure cause, and require again to enter
Row is arranged；Control instruction is recorded in encapsulation, will record control instruction parameter according to recording control instruction protocol requirement
It is packaged；Detection RS-232 port, it is the most normal that detection controls end PC RS-232 port, such as end
Mouth detects unsuccessfully, then carry out pointing out failure cause, and require to re-start Port detecting；Send to record and control
Instruction, is sent to digital set-top box system by the recording control instruction after encapsulation by RS-232 interface；Record
Status information processed receives and display, and after recording control instruction is sent, recording controls software and then starts to receive
The recording state information data of top box of digital machine end feedback, and show on visualization interface,
Described stream-recording/transport module is configured to: control instruction resolves, and top box of digital machine termination receives
After control instruction data, resolve according to control instruction data protocol, obtain control instruction dependency number and it is believed that
Breath, including data recording type, records frequency, recording size/selection of time, recording size, record
Time processed, transmission means, storing path information；Frequency modulation and demodulation, top box of digital machine is carried out to recording frequency
First recording frequency is tuned to intermediate-freuqncy signal by end signal tuning demodulation module, and this intermediate-freuqncy signal is passed to
Demodulation chip is demodulated, to demodulate TS bag data；Starting and record and the task of transmission, recording task is complete
Becoming the recording of DVB code stream, transmission task completes the transmission of DVB code stream, after recording and being sent completely, respectively
Terminate to record and the task of transmission.
A kind of system utilizing top box of digital machine to record DVB code stream the most according to claim 1, it is special
Levy and be: described top box of digital machine receives and controls the recording control instruction that PC sends over, then basis
The code stream of command request recording appointment frequency, and start the stream-recording module of top box of digital machine end, by numeral
The TS data that Set Top Box demodulates out are stored in SDRAM, and the code stream simultaneously starting top box of digital machine end passes
Defeated module, according to command request, is sent to code stream by the interface of Ethernet chip by the code stream of recording
Real time/off-line is analyzed on PC, or is sent in movable storage device by the code stream of recording by USB interface.
A kind of system utilizing top box of digital machine to record DVB code stream the most according to claim 2, it is special
Levy and be: described recording control instruction includes data recording type, records frequency, recording size/time choosing
Select, record the information such as size, recording time, transmission means, storing path, serial communication port, wherein
Data recording type includes original TS code stream and PSI/SI code stream, wherein transmission means include Ethernet transmission,
USB transmission.
A kind of system utilizing top box of digital machine to record DVB code stream the most according to claim 1, it is special
Levy and be: described signal demodulation module is mainly made up of decoding chip and demodulation chip.
The control of a kind of system utilizing top box of digital machine to record DVB code stream the most according to claim 1
Method, it is characterised in that: include that controlling PC records control flow and top box of digital machine stream-recording/transmission
Block process,
Control flow recorded by described control PC, comprises the following steps,
A, arrange recording control instruction parameter, by PC end record control software visualization interface, arrange
Relevant recording controls parameter, including data recording type, record frequency, record size/selection of time,
Record size, recording time, transmission means, storing path, serial communication port information,
Control instruction parameter is recorded in b, check, checks, the recording control instruction parameter arranged to sentence
The disconnected parameter arranged is the most wrong, if checking unsuccessfully, then points out failure cause, and requires to re-start to set
Put,
Control instruction is recorded in c, encapsulation, will record control instruction parameter according to recording control instruction protocol requirement
It is packaged,
D, detection RS-232 port, it is the most normal that detection controls end PC RS-232 port, as port is examined
Dendrometry loses, then carry out pointing out failure cause, and require to re-start Port detecting,
Control instruction is recorded in e, transmission, and the recording control instruction after encapsulating is sent to by RS-232 interface
Digital set-top box system,
F, recording state information receive and display, after recording control instruction is sent, records and control software
Then start to receive the recording state information data of top box of digital machine end feedback, and demonstrate on visualization interface
Come；
Described top box of digital machine stream-recording/transport module flow process, comprises the following steps,
A, control instruction resolve, after top box of digital machine termination receives control instruction data, according to control instruction
Data protocol resolves, and obtains control instruction related data information, including data recording type, record
Frequency processed, recording size/selection of time, recording size, recording time, transmission means, storing path letter
Breath,
B, carrying out frequency modulation and demodulation to recording frequency, first top box of digital machine end signal tuning demodulation module will
Record frequency and be tuned to intermediate-freuqncy signal, and this intermediate-freuqncy signal is passed to demodulation chip is demodulated, with demodulation
Go out TS bag data,
C, startup are recorded and the task of transmission, and recording task completes the recording of DVB code stream, and transmission task completes
The transmission of DVB code stream, after recording and being sent completely, terminates to record and transmission task respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310539874.XA CN103596035B (en) | 2013-11-04 | A kind of system and method utilizing top box of digital machine to record DVB code stream |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310539874.XA CN103596035B (en) | 2013-11-04 | A kind of system and method utilizing top box of digital machine to record DVB code stream |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103596035A CN103596035A (en) | 2014-02-19 |
| CN103596035B true CN103596035B (en) | 2016-11-30 |
Family
ID=
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101197987A (en) * | 2006-12-08 | 2008-06-11 | 上海全景数字技术有限公司 | Digital television program recording and playback method and system |
| US7526184B1 (en) * | 2000-04-28 | 2009-04-28 | Keen Personal Media, Inc. | Video recording system utilizing external video storage to record streaming video data via an isochronous interface |
| CN201467266U (en) * | 2009-05-14 | 2010-05-12 | 深圳市鑫美数码科技有限公司 | Digital set top box with recording and playing multimedia function |
| CN102026031A (en) * | 2010-12-28 | 2011-04-20 | 张朝晖 | Set top box |
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7526184B1 (en) * | 2000-04-28 | 2009-04-28 | Keen Personal Media, Inc. | Video recording system utilizing external video storage to record streaming video data via an isochronous interface |
| CN101197987A (en) * | 2006-12-08 | 2008-06-11 | 上海全景数字技术有限公司 | Digital television program recording and playback method and system |
| CN201467266U (en) * | 2009-05-14 | 2010-05-12 | 深圳市鑫美数码科技有限公司 | Digital set top box with recording and playing multimedia function |
| CN102026031A (en) * | 2010-12-28 | 2011-04-20 | 张朝晖 | Set top box |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5433143B2 (en) | Digital broadcast media recording apparatus and recording method | |
| CN100429930C (en) | Digital broadcast receiving device and method | |
| US20110061086A1 (en) | Apparatus and Method for Multimedia Data Reception, Processing, Routing, Storage, and Access Using a Web / Cloud-Computing Synchronization of Personal Multimedia Data | |
| CN102665094A (en) | Test method of set-top box and test system thereof | |
| CN102474588A (en) | Transmission controller, reception controller, transmission control method, reception control method and transmission control program | |
| CN102291592B (en) | Method for collecting self-checking failure information of television by using external storage medium | |
| EP2429136A1 (en) | Method and apparatus for carrying transport stream | |
| CN104301652A (en) | Method for network camera access configuration and network video recorder | |
| US20150304714A1 (en) | Server device and client device for providing vod service and service providing methods thereof | |
| CN104412608B (en) | Picture decoding apparatus, picture decoding method, picture coding device and method for encoding images | |
| CN103596035B (en) | A kind of system and method utilizing top box of digital machine to record DVB code stream | |
| CN100583970C (en) | System and method for recording television program | |
| JP4799662B2 (en) | Broadcast receiving apparatus and broadcast receiving method | |
| KR101051063B1 (en) | Video recording and playback device, video recording method, video playback method and video recording playback method | |
| CN105916009B (en) | A kind of method and device for recording program | |
| CN104581356A (en) | Program recording method and system | |
| CN103841457A (en) | Method for simultaneously recording a plurality of programs through set top box | |
| CN101312538A (en) | Transmission system, recording apparatus, transmission method, recording method and program | |
| CN103596035A (en) | System and method for recording DVB code stream through digital set top box | |
| JP2007060117A (en) | Image display device and method | |
| CN106961635A (en) | Massaging device | |
| CN110958482A (en) | Recording and playback system under safety protection and control method | |
| US20130185464A1 (en) | Electronic apparatus, data transfer control method, and program | |
| KR101551160B1 (en) | Apparatus for notifying contents situation used in device with digital recording apparatus | |
| JP2005063069A (en) | Device to be controlled, remote control device, and remote control system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant |