CN1127079C - Data transmitting method, data recording apparatus, data record medium and data reproducing apparatus - Google Patents

Data transmitting method, data recording apparatus, data record medium and data reproducing apparatus Download PDF

Info

Publication number
CN1127079C
CN1127079C CN96113336A CN96113336A CN1127079C CN 1127079 C CN1127079 C CN 1127079C CN 96113336 A CN96113336 A CN 96113336A CN 96113336 A CN96113336 A CN 96113336A CN 1127079 C CN1127079 C CN 1127079C
Authority
CN
China
Prior art keywords
data
reproduction
zone
circuit
indication information
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.)
Expired - Fee Related
Application number
CN96113336A
Other languages
Chinese (zh)
Other versions
CN1154552A (en
Inventor
佐古曜一郎
大泽义知
栗原章
川嶋功
增田昌三
广和英男
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sony Corp
Original Assignee
Sony Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sony Corp filed Critical Sony Corp
Publication of CN1154552A publication Critical patent/CN1154552A/en
Application granted granted Critical
Publication of CN1127079C publication Critical patent/CN1127079C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
    • G11B20/0021—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier
    • G11B20/00217—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier the cryptographic key used for encryption and/or decryption of contents recorded on or reproduced from the record carrier being read from a specific source
    • G11B20/00246—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier the cryptographic key used for encryption and/or decryption of contents recorded on or reproduced from the record carrier being read from a specific source wherein the key is obtained from a local device, e.g. device key initially stored by the player or by the recorder
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
    • G11B19/02—Control of operating function, e.g. switching from recording to reproducing
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
    • G11B20/0021—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier
    • G11B20/00217—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier the cryptographic key used for encryption and/or decryption of contents recorded on or reproduced from the record carrier being read from a specific source
    • G11B20/00253—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier the cryptographic key used for encryption and/or decryption of contents recorded on or reproduced from the record carrier being read from a specific source wherein the key is stored on the record carrier
    • G11B20/00297—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier the cryptographic key used for encryption and/or decryption of contents recorded on or reproduced from the record carrier being read from a specific source wherein the key is stored on the record carrier the key being stored in a management area, e.g. the video manager [VMG] of a DVD
    • G11B20/00318—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier the cryptographic key used for encryption and/or decryption of contents recorded on or reproduced from the record carrier being read from a specific source wherein the key is stored on the record carrier the key being stored in a management area, e.g. the video manager [VMG] of a DVD the key being stored in the TOC
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
    • G11B20/0021—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier
    • G11B20/00217—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier the cryptographic key used for encryption and/or decryption of contents recorded on or reproduced from the record carrier being read from a specific source
    • G11B20/00253—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier the cryptographic key used for encryption and/or decryption of contents recorded on or reproduced from the record carrier being read from a specific source wherein the key is stored on the record carrier
    • G11B20/00347—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier the cryptographic key used for encryption and/or decryption of contents recorded on or reproduced from the record carrier being read from a specific source wherein the key is stored on the record carrier wherein the medium identifier is used as a key
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
    • G11B20/00572—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which change the format of the recording medium
    • G11B20/00615—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which change the format of the recording medium said format change concerning the logical format of the recording medium, e.g. the structure of sectors, blocks, or frames
    • G11B20/0063—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving measures which change the format of the recording medium said format change concerning the logical format of the recording medium, e.g. the structure of sectors, blocks, or frames wherein the modification to the logical format mainly concerns management data, e.g., by changing the format of the TOC or the subcode
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
    • G11B20/00731—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving a digital rights management system for enforcing a usage restriction
    • G11B20/00746—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving a digital rights management system for enforcing a usage restriction wherein the usage restriction can be expressed as a specific number
    • G11B20/00753—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving a digital rights management system for enforcing a usage restriction wherein the usage restriction can be expressed as a specific number wherein the usage restriction limits the number of copies that can be made, e.g. CGMS, SCMS, or CCI flags
    • G11B20/00768—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving a digital rights management system for enforcing a usage restriction wherein the usage restriction can be expressed as a specific number wherein the usage restriction limits the number of copies that can be made, e.g. CGMS, SCMS, or CCI flags wherein copy control information is used, e.g. for indicating whether a content may be copied freely, no more, once, or never, by setting CGMS, SCMS, or CCI flags
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/12—Formatting, e.g. arrangement of data block or words on the record carriers
    • G11B20/1217—Formatting, e.g. arrangement of data block or words on the record carriers on discs
    • G11B20/1251—Formatting, e.g. arrangement of data block or words on the record carriers on discs for continuous data, e.g. digitised analog information signals, pulse code modulated [PCM] data
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/18—Error detection or correction; Testing, e.g. of drop-outs
    • G11B20/1806—Pulse code modulation systems for audio signals
    • G11B20/1813—Pulse code modulation systems for audio signals by adding special bits or symbols to the coded information
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B23/00—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture
    • G11B23/28—Indicating or preventing prior or unauthorised use, e.g. cassettes with sealing or locking means, write-protect devices for discs
    • G11B23/283—Security features, e.g. digital codes
    • G11B23/284—Security features, e.g. digital codes on the record carrier
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B23/00—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture
    • G11B23/30—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture with provision for auxiliary signals
    • G11B23/36—Signals on record carriers or on containers and recorded by the same method as the main recording
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
    • G11B27/19—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier
    • G11B27/28—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording
    • G11B27/30—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording on the same track as the main recording
    • G11B27/3027—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording on the same track as the main recording used signal is digitally coded
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00—Record carriers by type
    • G11B2220/20—Disc-shaped record carriers
    • G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
    • G11B2220/2537—Optical discs
    • G11B2220/2562—DVDs [digital versatile discs]; Digital video discs; MMCDs; HDCDs
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
    • G11B27/19—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier
    • G11B27/28—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording
    • G11B27/32—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording on separate auxiliary tracks of the same or an auxiliary record carrier
    • G11B27/327—Table of contents
    • G11B27/329—Table of contents on a disc [VTOC]

Abstract

A data transmitting method for preventing direct copying of digital bi-level signals. When processing input digital data from an input terminal 11 by circuits 13 to 16, modulating the data by a modulation circuit 17 and appending synchronization signals by a synchronization appendage circuit 18, the synchronization signals are appended using a synchronization format which is different from the synchronization format conforming to the standard and which is usually not used. For example, the synchronization pattern different from the regular synchronization pattern may be used, or the synchronization signal may be inserted at a position different from the regular position. If attempts are made for direct copying of the digital bi-level signal having such synchronization format, synchronization may be disengaged, for example, thus obstructing and prohibiting duplication.

Description

Data transferring method, pen recorder and transcriber
Technical field
The present invention relates to a kind of data transferring method, data recording equipment, data carrier (record, recordable or be recorded) and data reproducing device, the duplicating or illegally using of that they can be used to stop transmission or record/numerical data of reproducing.
Background technology
Recently, along with digital recording medium for example the capacity of CD increase and use widely, stop its unauthorized use and duplicate become a kind of responsibility.That is, digital audio-frequency data or digital of digital video data can be duplicated in good condition, and computer data can obtain the data identical with raw data through duplicating, thereby have caused problem because of not approved duplicating.
Do not duplicate for fear of the approved of digital audio-frequency data or digital of digital video data, known so far be known as serial copy management system (SCMS) standard or duplicate management system (CGMS) standard that produces.Yet, because setting at the specific part of record data, these standards duplicate prohibitory sign, can be that the extraction data are duplicated in the so-called dump (dump copying) of digital bi-level signal by all duplicating.
In Japanese Patent Laid-Open Publication JP-A-7-182766 (1995), disclosed and a kind ofly on recording medium, write down not the information of reproducible (security information) and utilize this information to forbid the method that does not go through to duplicate.Yet this method can not solve the above-mentioned problem of extracting data of duplicating by dump.
Specifically, all duplicate or dump is duplicated by reproducing for example bare headed reading number bi-level signal of head and utilized the technology of the digital bi-level signal of direct extraction to carry out again, thereby caused problem.
At present the digital video disc (DVD) that occurs also is so, i.e. substance sale at reduced prices can be duplicated in large quantities, thereby must combine with form and take some measures.
Summary of the invention
Therefore, the object of the present invention is to provide a kind of data transferring method, data recording equipment, data recording (record, recordable or be recorded) medium and data reproducing device, directly duplicate digital bi-level signal so as to forbidding, so that forbid the not approved for example copy right piracy that duplicates.
According to an aspect of the present invention, provide a kind of being used for to handle input digital data and the data transferring method that transmits processed numerical data, comprising: in signal, provide to hinder the reproduction obstruction zone of reproducing operation according to predetermined format; And transmit indication with data and reproduce the position indication information that hinders regional arrangement position.
According to the present invention, in will being transmitted the signal that maybe will be recorded, provide to reproduce to hinder the district to be used for hindering the reproduction operation, and transmit or write down indication with data and reproduce the position indication information that hinders the arrangement position of distinguishing.
Reproducing the obstruction district can be the zone with particular sync signal different with standard compliant synchronizing signal.Particular sync signal can be different on transition length with standard compliant synchronizing signal.Reproduce hindering the zone can be wherein to form to have the hole that causes servo releasing length or the zone of groove.
If directly duplicate the signal that is transmitted or be recorded,, can make clock synchronization or servo being disengaged, thereby forbid all duplicating owing to reproduce the existence that hinders the district.
According to a further aspect in the invention, provide a kind of being used for to handle input digital data and write down the data recording equipment of processed numerical data according to predetermined format, comprise: be used to generate and reproduce the device that hinders data, described reproduction hinders data to be used to hinder the reproduction operation of processed numerical data; Be used to generate the device of position indication information, described position indication information is used to indicate described reproduction to hinder the record position of data; And pen recorder, be used for hindering data recording to the indicated position of described position indication information described reproduction, and write down described position indication information and described numerical data.
In accordance with a further aspect of the present invention, a kind of data reproducing device that is used for reproducing the data on the data carrier is provided, the reproduction that records the reproduction operation that is used for hindering in the data recording area on described data carrier hinders the zone and records and is used to refer to the position indication information of reproducing the arrangement position that hinders the zone, and described data reproducing device comprises: be used for the position indication information pick-up unit of detection position indication information; And the reproduction conversion control device, be used for controlling the conversion that hinders the reproduction in zone by the reproduction of indicating from the position indication information of described position indication information pick-up unit.
Description of drawings
Fig. 1 is to use the calcspar of data recording equipment of the present invention.
Fig. 2 illustrates the example of error-correcting code.
Fig. 3 illustrates the example of sector format.
Fig. 4 illustrates the example of the synchronization character that is additional to modulation signal.
Fig. 5 is the calcspar of the example of synchronous adjunct circuit.
Fig. 6 A and 6B are illustrated in the example of arranging synchronizing signal on the synchronizing signal position that is not conventional.
Fig. 7 illustrates the example of data carrier.
Fig. 8 is to use the structure calcspar of data reproducing device of the present invention.
Fig. 9 is the calcspar of the example of synchronizing separator circuit.
Figure 10 illustrates another example of sector format.
Figure 11 is illustrated in the example of the header area in the sector of sector format of Figure 23.
Figure 12 is the calcspar of another example of error-correcting code.
Figure 13 illustrates the generation sign indicating number (Product code) as the example of error-correcting code.
Figure 14 illustrates the example of sector signals form.
Figure 15 illustrates another example of the synchronization character that is additional to modulation signal.
Figure 16 is illustrated in another example of encrypting in the synchronous adjunct circuit.
Figure 17 A and 17B are illustrated in the synchronizing signal position that is not conventional and arrange another example of synchronizing signal.
Embodiment
With reference to the accompanying drawings to a preferred embodiment of the present invention will be described in detail.
Fig. 1 is to use the calcspar of data recording equipment of the present invention.
Referring to Fig. 1, numerical data-for example is sent to input end 11 by the A/D conversion from simulated audio signal or vision signal data converted or computer data.The numerical data of input is delivered to the sector by interface circuit 12 and is formed circuit 13, thereby forms the sector, and each sector constitutes as a unit with 2048 bytes.The formation sectors of data is sent to sophisticated circuitry 14 and mixes.Refer to mixing herein and make the randomization of input data, occur continuously, promptly remove identical form, so that read-write correctly so that prevent identical byte form.Be sent to title adjunct circuit 15 by data that mix or that be randomized, it is at the front end affix title data of each sector.The gained data are sent to error recovery coding circuit 16.Error recovery coding circuit 16 carries out the parity calculations of data delay and the odd and even data that adds.The modulation circuit 17 of next stage converts 8 bit data to for example data of 16 channel bit modulation by predetermined modulating rule, and the gained modulating data is delivered to synchronous adjunct circuit 18.Synchronously adjunct circuit 18 is the additional so-called synchronizing signal that breaks away from the form of rule of unit by predetermined amount of data, and is that driver 19 is sent the gained data and given record-header 20 by driving circuit.Record-header 20 realize light or magneto-optical recorder and on dish type record (record, recordable or be recorded) medium 21 the modulated tracer signal of record, this disc-shape recoding medium 21 is by spindle motor 22 driven rotary.
Sophisticated circuitry 14 also can be inserted into the downstream of title adjunct circuit 15, is used for mixing numerical data and to its additional title, and is used for the data that mix to wrong correction coding circuit 16 outputs.
Explanation is as the structure of the each several part of the device of Fig. 1 of first embodiment of the invention now.
Fig. 2 is by the signal format after the synchronous adjunct circuit 18 appended synchronization signals.
Referring to Fig. 2, the information data of 148 bytes is along reading/number direction (R/W direction) arrangement.Every row comprise sector auxiliary information data 31 of 2072 bytes of 14 row compositions of 148 bytes.The arrangement of one sector auxiliary information data 31 of 2072 bytes is as shown in the example of Fig. 3, and one of them sector comprises 42,16 byte header districts 43,41,4 byte of sync districts, 2048 bytes of user data districts and 4 byte error error detecting codes (EDC) district 44.The error-detecting code in error-detecting code district 44 is included as 32 or 4 byte CRC sign indicating numbers of user data area 41 and header area 43 generations.In header area 43, have CRC45, be used to duplicate permission/do not allow or duplicate the copy data 46 that produces management, specify the layer 47 of one deck of multilayer disc, address area 48 and spare area 49 as reflected code.
One sector, 2072 byte information data 31 are arranged in two dimension, and (=85+63) individual byte has 14 row, as shown in Figure 2 in the horizontal direction 148 in vertical direction.Get the C1 odd and even data 33 of C1 direction and the generation and additional 8 bytes of error recovery coding along vertical R/W direction, and get the odd and even data 34 of C2 direction and the generation and additional 14 bytes of error recovery coding along tilted direction.Comprise C1 odd even 33 and C2 odd even 34, each sector 32 is made of 2380 bytes.The data that information data and odd and even data constitute according to default modulating system modulation, make a byte (8) convert for example 16 channel bit modulating datas to by modulation circuit 17.In synchronous adjunct circuit 18 to the synchronizing signal of these modulating data affix 2 bytes or 32 channel bit forms.For this synchronizing signal, it is synchronous 36 that the beginning in the sector is provided with the sector, and remove that the vertical direction in beginning is provided with C1 synchronous 37 outside the sector synchronous 36.Additional synchronous 38 in the centre position, 170 bytes of vertical direction is divided into the part of two 85 bytes.The vertical row of Fig. 2 structure is called the C1 frame, wherein has two synchronizing signals.
Fig. 4 represents the form of synchronizing signal.Wherein show three homochronousness word S0 to S2.These synchronization characters are that the what is called of violating the modulating rule of modulation circuit 17 breaks away from regular signal form.Specifically, 11T, T are channel bit period, occur endways twice as signal transition or counter-rotating length.This form is not used in the data-modulated form of modulation circuit 17, thereby the data of making and synchronization character can be separated from each other reliably.These synchronization characters S2 to S0 can be respectively synchronous 36 to 38 relevant with Fig. 2.Specifically, synchronization character S2, S1 and S0 be used separately as that the sector is synchronous 36, C1 synchronous 37 and appended synchronization 38.
In an embodiment of the present invention, the synchronous form of synchronous form and above-mentioned standard is different, and this synchronous form that is not used usually is used to some district or sector at least, make and remove synchronously for normal reproduction, thereby forbid that so-called dump duplicates, directly the duplicating of promptly aforesaid pair of level digital data.This zone is commonly referred to as to reset and hinders the district.
Use the example of this common obsolete synchronous form to comprise that use is different from the particular form of standard sync signal form shown in Figure 4, and on the abnormal position different, arrange synchronizing signal with the normal position of the synchronizing signal of in standard format, stipulating.
Use first example of certain synchronization mode to be to use the transition length longer, for example 12T or 13T than above-mentioned interval 11T.Can not only use the 12T or the form of 13T but also the combination of the mutual different transition length that use comprises 12T or 13T that comprise two repetitions.For example, comprise the transition length 13T of two repetitions, can be as 0,000 0,100 0,000 0,000 0,010 0,000 0,000 0001 as the synchronizing signal of 32 channel bit synchronizing signals.This makes removes synchronously between the dump replicative phase.
Use second example of certain synchronization form to comprise the transition length of using than the minimum transition length 3T weak point of in the modulating rule of modulation circuit 17, stipulating, for example 1T or 2T, promptly 1T of Chong Fuing or 2T are by forming than the little hole, hole that exists physically, certainly, to satisfy engaging condition in the front and back of synchronous versions.The example of 2T of repetition of representing the synchronizing signal of 32 channel bit is
0101?0101?0101?0101?0101?0101?0101?0101。
If use synchronizing signal with shorter transition length, will produce such effect, if promptly data are unexpectedly reproduced, just thereby then the RF signal level reduces gradually make reproduce difficult.
Use the 3rd example of certain synchronization mode to comprise and use the transition interval 11T that repeats, repeat, have one when promptly arranging described repetition and depart from but in being different from the synchronous versions of standard, arrange on the position of the position of transition interval 11T.Typical form is
0000?0100?0000?000?1000?0000?0001?0001。
Use the 4th example of certain synchronization mode to be to use the modulation signal of real data to replace using the unchartered form of the modulating rule of violating modulation circuit 17 as synchronizing signal, for example, the 32 channel bit signals that obtain according to the modulation of 16 bit data in the 16 system symbols " OOFFh " are used as synchronizing signal.
If this certain synchronization mode is being used in certain district at least, for example in the sector of presetting, then this district or sector are exactly that above-mentioned reproduction hinders the district, and record is used to refer to the indication data of reproducing the sevtor address that hinders the district simultaneously.Promptly during signal record, indication data also is recorded together with relevant common data, 18 synchronizing signals by the sector in the reproductions obstruction district of indication data indication of the synchronous adjunct circuit of Fig. 1 are converted to the synchronizing signal of above-mentioned certain synchronization mode simultaneously, and next synchronizing signal of affix certain synchronization mode.
Figure 5 shows that the example of structure that is used for according to the synchronous adjunct circuit of above-mentioned indication data conversion certain synchronization mode.The synchronous adjunct circuit of Fig. 5 can be as the synchronous adjunct circuit 18 of Fig. 1.Modulation signal from modulation circuit 17 is sent to input end 51.
The signal that enters input end 51 is sent to the common junction c of switch 52, and the fixed contact a of switch and the output of b are delivered to the synchronous adjunct circuit 54 of the synchronous versions that is configured to additional standard respectively and is configured to the certain synchronization adjunct circuit 55 of the synchronizing signal of additional certain synchronization form.The output of adjunct circuit 54 and certain synchronization adjunct circuit 55 is synchronously sent at output terminal 56, and is sent to the driver 19 of Fig. 1, and switch 52 is set according to the location-specific data Be Controlled from location-specific data output circuit 53.In these cases, the reproduction that is used to specify hinders the location-specific data of the sevtor address in district can be recorded in the zone of presetting, for example (TOC) zone of a catalogue listing.Be that the position specific data is provided for catalogue listing (TOC) generation circuit 23 by interface circuit shown in Figure 1 12.The information that provides from TOC generation circuit 23 is sent to record-header 20 by terminal 24, after, this information of record in the toc region of recording medium.
Replace aforesaid use and the common different certain synchronization mode of the method for synchronization, three kinds of method of synchronization S0 to S2 shown in Figure 4 and sector shown in Figure 2 are synchronous 36, the corresponding relation between C1 synchronous 37 and the appended synchronization 38 can change from the corresponding relation of conformance with standard rule.That is, if as the corresponding relation of standard, sector synchronous 36, C1 synchronous 37 is relevant with S0 with S2, S1 respectively with appended synchronization 38, then can depart from this corresponding relation, thereby make method of synchronization S0, it is synchronous 36 that S2 and S1 will be used separately as, the method for synchronization of C1 synchronous 37 and appended synchronization 38.
The following describes the several examples that in the lack of standardization position different, insert synchronizing signal with standard compliant position.
First example is to insert synchronizing signal on the nonstandard position 59 different with the synchronizing signal position 58 of standard, and make interval between these nonstandard positions 59 remain the interval of standard, the interval of 85 bytes for example, as shown in Figure 6, promptly in Fig. 6 A, nonstandard position 59 is provided for the position that the next one is used for the standard of synchronizing signal 58, and in Fig. 6 B, nonstandard position 59 is provided between the regulating position that is used for synchronizing signal 58 position arbitrarily, and the interval between adjacent position lack of standardization remains 85 bytes.
Second different example of synchronizing signal position comprised be provided with dispersedly the interval of the position lack of standardization of inserting synchronizing signal.In first example, the interval that the interval between the position 59 lack of standardization is set to standard is the interval of 85 bytes for example.In second example, this interval is provided with randomly.
Make the 3rd different example of synchronizing signal position be included in data division and insert synchronizing signal, make the quantity of the synchronizing signal in each C1 frame, promptly the quantity of the synchronizing signal of every row is three or more in the vertical direction of Fig. 2.
If the synchronizing signal number that increases in the 3rd example is used to data division, it is difficult then inserting data in the sectors of data part.Yet in above-mentioned first and second examples, data can be inserted in and not be on the nonstandard position.
In above example, by use usually no be difficult with carrying out according to the different synchronous form of the synchronous form of standard code that normal synchronized detects or separate.As a kind of correction, also can provide a kind of structure of forbidding servo or clock operation, the hole of for example servo releasing length, groove or minute surface in the regulation zone.
For example, can form hole or groove with servo releasing length.
In addition, also can provide non-posting field, the minute surface longer than servo releasing length as its length.
By the zone with this structure is provided, just is disengaged in that reproduction period is servo, thereby forbids directly duplicating digital bi-level signal.
During normal reproduction, the correct reproduction of reproducing the obstruction district can hinder the indication data of distinguishing by for example for example being used to reproduce at the regional writing position indication information of catalogue listing (TOC) in presumptive area, or hinders the district to realize by the pointer indication reproduction that provides on an assigned address.For example, if use the reproduction that causes servo releasing to hinder the district, then hinder the position indication information in district to be recorded in the toc region corresponding to reproducing, when reproducing, by the detection position appointed information, this district is just for example not reproduced by skipping.
Thereby all duplicating the technology of the two level datas of numeral, above-mentioned prevention also can improve safety of data as mentioned above with the data encryption combination.
Promptly form circuit 13, sophisticated circuitry (scrambling circuit) 14, title adjunct circuit 15, error recovery coding circuit 16 in the sector, at least one in modulation circuit 17 and the synchronous adjunct circuit 18 can be configured for encrypting input signal and output ciphered data.Used the identifying information that is written in non-data recorded area on the recording medium 21 at least in part for this encrypted secret key information, the identifying information that for example is suitable for recording medium, producer's identifying information, the identifying information of pen recorder or scrambler or the identifying information that provides from the outside are provided sellers' identifying information.Like this, the identifying information that is written in the non-data recorded area of recording medium can be for example to produce circuit 23 from interface circuit 12 by catalogue listing (TOC) to deliver to the information of terminal 24, or directly delivers to the information of terminal 25 from interface circuit 12.Key information from terminal 24,25 is used as the encrypted secret key message part.In at least one best two or more circuit 13 to 18, use key information to the input data encryption.
Certain circuit that carried out in the circuit 13 to 18 encrypting is also represented one of other circuit, and is considered to be in the required key of reproducing signal that reproduction period is used for producing standard.If promptly in these circuit encrypts, just need to select in other 6 circuit, and if in 6 circuit two encrypt, in just needing to select other 30 one.If might to 6 in 6 circuit 13 to 18 be encrypted, then the quantity of other circuit is further increased, and makes that it is difficult finding its combination by heuristic method.So just, can realize the purpose of encrypting satisfactorily.
Being used for encrypted secret key information can for example change with the sector cycle in the predetermined moment, so that further improve the difficulty of secret grade or deciphering.
At least the part that is used for encrypted secret key information can be recorded in the zone or the sector of using obsolete synchronous versions under the normal condition.The result is, if this zone or sector are known, even can avoid synchronous releasing, under the situation that the two level informations of numeral directly are replicated, also can produce synchronous releasing, thereby makes the key information can not be reproduced.
Though above-mentioned at be record on recording medium, above-mentioned technology can easily be used for the processing and the transmission of general input digital data.This can hinder the district to realize by above-mentioned reproduction is provided in general communicated data signal.
Fig. 7 represents the recording medium of dish type, CD for example, and as the example of recording medium, disc-shape recoding medium 101 has center pit 102., when outward flange is seen, be formed with and introduce zone 103 from the inward flange of disc recording medium 101, as program management zone or toc region, program area 104, the data that have program recorded thereon on it and EOP (end of program) zone or be called leading-out zone 105.At the CD that is used for reproducing the audio or video signal, the audio or video signal is recorded in program area 104, and the timing information etc. that is used for the audio or video data is by introducing zone 103 management.
Be written into and also can be used as the key information part as identifying information of data recording area and so on outside the program area 104.Specifically, identifying information for example is suitable for the product serial number of physical record medium, producer's ID (identity number), sellers' ID (identity number), be suitable for the identifying information of physical record device or be suitable for the identifying information of concrete scrambler, or the concrete device that is suitable for being used for the record of production medium for example the identifying information of cutting machine or stamping machine be recorded in introducing zone 103 and export area 105 as toc region.In addition, stating the signal that obtains when information is encrypted in above-mentioned at least one in 18 of 6 circuit 13 is preferably two or several as key information in the use is recorded in the program area 104 as data recording area.At reproduction period, above-mentioned identifying information can be used as the key information of deciphering.Identifying information can physically or chemically be write in the radially inner zone of introducing zone 103, and is read out at reproduction period, thereby is used as the key information of deciphering.
Position indication information also can be recorded in predeterminable area and for example introduce in the toc region in zone 103.In this case, reproducing the obstruction district can directly be indicated by the position indication information of toc region.In addition, the position indication information in toc region is the pointer in the designation data simply, and this pointer can be indicated again and reproduced the position that hinders in the district.
Referring to Fig. 8, the following describes the data reproducing device that is used to realize data reproducing method of the present invention.
As seen from Figure 8, as the disc recording medium 101 of recording medium by spindle motor 108 driven rotary, thereby the reproduced head unit 109 of content of its record is read, light picker for example.Above-mentioned digital bi-level signal whole duplicate to refer to from the signal that reproduces head unit 109 and are directly extracted and be recorded in this duplicating on another recording medium.
The digital signal of being read by reproduction head unit 109 is sent to TOC code translator 111 and amplifier 112.From TOC code translator 111, product serial number, producer's ID (identity number), sellers' ID (identity number) of the identifying information that the TOC message part of above-mentioned conduct in the introducing zone 103 of disc-shape recoding medium 101 is recorded-for example be suitable for physical record medium, be suitable for the identifying information of physical record device or be suitable for the identifying information of concrete scrambler, or the concrete device that is suitable for being used for the record of production medium for example the identifying information of cutting machine or stamping machine be read out, thereby be used as at least a portion of the key information of deciphering.Also can export identifying information that the identifying information that is suitable for transcriber or the outer CPU 122 in transcriber provide and with these identifying informations at least a portion as key information.Comprise the identifying information that receives by communication network or transmission channel and by reading IC-card, the identifying information that ROM card, magnetic or optical card obtain from the example of the identifying information of outside.
Be sent to synchronizing separator circuit 114 and be separated in the synchronizing signal of adding the synchronizing signal adjunct circuit 18 of Fig. 1 from reproducing digital signal that head unit 109 takes out by amplifier 112 and phaselocked loop (PLL) 113.Be sent to demodulator circuit 115 from the digital signal of synchronizing separator circuit 114 and carry out demodulation, this is the anti-operation of the modulation operations of being undertaken by modulation circuit shown in Figure 1 17.Be sent to error recovery decoding scheme 116 from the numerical data of demodulator circuit 115 and decipher, this is the anti-operation of the encoding operation that carries out of the error recovery coding circuit 16 by Fig. 1.Data from error recovery decoding scheme 116 resolve into the sector by sector decomposition circuit 117, and are separated by the title of title separation circuit 118 to the head of each sector.Sector decomposition circuit 117 and title separation circuit 118 are respectively the corresponding circuits that the sector forms circuit 13 and title adjunct circuit 15 among Fig. 1.Separate and mix processing by separating sophisticated circuitry 119 from the data of title separation circuit 118, this is the anti-operation that mixes processing that the sophisticated circuitry 14 of Fig. 1 carries out.Reproduced data are exported at output terminal 121 through interface circuit 120.
Because reproduce to hinder the zone to be recorded on the recording medium as previously mentioned, so need provide disposal route to forbid reproducing adverse effect when hindering the district by direct reproduction.Difference for example, if use the certain synchronization mode, then just can be changed the certain synchronization mode with control mode shown in Figure 9 to these disposal routes with reproducing the district's type that hinders the district.If use the synchronizing signal position different, then can carry out synchronous detection in different positions or synchronous detection is omitted in this zone with regulating position.On the other hand, if use servo releasing, then the reproduction in this zone can be under an embargo.
Fig. 9 is the structure of the synchronizing separator circuit on reproduce surveying, institute at situation be as synchronizing signal in conjunction with the certain synchronization mode of during writing down, adding of Fig. 5 explanation at the synchronizing signal position of predeterminable area or sector.Synchronizing separator circuit shown in Figure 9 can be used as the synchronizing separator circuit 114 of Fig. 8.The output signal of the PLL circuit 113 of Fig. 8 is sent to input end 131.
The input signal of the input end 131 of Fig. 9 is sent to the common junction C of switch 132.The fixed contact a of switch 132 and the output of b are sent to the synchronous detection/separation circuit 134 that is configured to detect with the synchronizing signal of separating standard compliant synchronous versions respectively, and are sent to the certain synchronization detection/separation circuit 135 that is configured to detect with the synchronizing signal of separating above-mentioned certain synchronization mode.The output of synchronous detection/separation circuit 134 and certain synchronization detection/separation circuit 1 35 is sent at output terminal 136, thereby is sent to the demodulator circuit 115 of Fig. 8.
Input signal at input end 131 also is sent to indication data testing circuit 133, and the reproduction of regulation with synchronizing signal of certain synchronization mode hinders the indication data in zone detected and be removed there.Switch 132 is according to the indication data Be Controlled from indication data testing circuit 133.As mentioned above, indication data also can be written in the TOC information in the introducing zone 103 of Fig. 7.In this case, indication data can obtain from the TOC code translator 111 of Fig. 8.In addition, the position of indication data arrangement can be specified by the information that provides in the toc region territory.
Fig. 9 is the block diagram at the synchronizing separator circuit that reproduces side, institute at situation be wherein the ad hoc fashion synchronizing signal synchronizing signal that is used as preset regions or sector with provide reproduce hinder regional.Certainly, for the reproduction obstruction district of other type, need suitable reproducting method to come to adapt with concrete reproduction obstruction district type.For example, if synchronizing signal position is different with the synchronizing signal position of standard, then sync position detection can Be Controlled be used for starting synchronous detection, makes to carry out synchronous detection in different positions or hinder the zone not carry out synchronous detection reproducing.If in reproducing the obstruction district, provide hole, groove or the minute surface that causes servo releasing, then reproduce the obstruction district and can be identified as the reproduction prohibited area, thereby avoid signal reproduction by for example track redirect.
If carried out at least one in sector formation circuit 13, sophisticated circuitry 14, title adjunct circuit 15, error recovery coding circuit 16, modulation circuit 17, synchronous adjunct circuit 16 and Error-Correcting Circuit 16 of encryption, then need in the reproducing circuit 114 to 119 relevant, be decrypted with the circuit that carried out encryption.That is,, then need to use encrypted secret key information in the sector of Fig. 1 decomposition circuit 13, to be decrypted if in sector formation circuit 13, carried out encryption.Similarly, must be by separating sophisticated circuitry 119 and title separation circuit 118 respectively to being decrypted by the sophisticated circuitry 14 of Fig. 1 and the encryption of title adjunct circuit 15.The encryption by error recovery coding circuit 16 of Fig. 1 must be carried out, and correspondingly the deciphering by error recovery decoding scheme 16 also is necessary.In addition, if at the modulation circuit 17 of Fig. 1 or carried out encryption in the adjunct circuit 18 synchronously, then must in demodulator circuit 115 and synchronizing separator circuit 114, be decrypted respectively.
By immediate record encrypted secret key information after reproducing the obstruction zone or after the synchronizing signal in the certain synchronization mode; synchronous or servo between whole replicative phases of digital bi-level signal will be disturbed; thereby can not normally reproduce key information, so just protect key information.
The second embodiment of the present invention is described now.The basic structure of second embodiment of the invention is identical with Fig. 1.But, the signal format of circuit 13 to 18 or Fig. 1 is revised slightly.The part that these are different only is described below.
Figure 10 represents the example of the sector format of second embodiment, and its is as the signal format that obtains by the synchronous adjunct circuit 18 appended synchronization signals of Fig. 1 the time.
Referring to Figure 10, each sector is made of 12 row, and every row comprises 172 bytes, totally 2064 bytes, and wherein 2048 bytes are represented master data.Guide positions at the 1st row of 12 row are being arranged identification (ID) data of 4 bytes, and the identification error of 2 bytes detects the retention data (RSV) of (IED) sign indicating number and 6 bytes.In the end the error-detecting code (EDC) of 4 bytes is being arranged at the end of delegation.
In 4 bytes of recognition data (ID), the byte at a MSB place (position b31 to b24) is represented sector auxiliary information, and remaining three byte (position b23 is to b0) are sector numbers, as shown in figure 11.From this side of MSB, sector auxiliary information is by 1 sector format type, 1 method that tracks, 1 reflection coefficient, and 1 standby, 2 area type and 2 numbers of plies constitute.
In above-mentioned sector format, the title adjunct circuit 15 of Fig. 1 can replace, i.e. step-by-step mixes, and this is undertaken by encrypting according to key information 24 to the sector number of identification (ID) data.In addition, the polynomial expression of 4 byte error error detecting codes (EDC) of the polynomial expression of 2 byte identification errors of generation detections (IED) sign indicating number or generation can be revised according to key information by encrypting.
The error recovery coding circuit 16 of Fig. 1 can have structure shown in Figure 12.Generation sign indicating number (product code) that coding uses or block code (block code) are as shown in figure 13.
Referring to Figure 12, be sent to the input end 210 of Fig. 1 from the data of title adjunct circuit 15 shown in Figure 1.The input data are sent to the PO scrambler 211 as first scrambler.The input data of delivering to PO scrambler 211 are 172 byte (B 0,0To B 191,171) 192 data of going.The additional Reed-Solomon (Reed-Solomon) as 16 bytes of the data of 172 row that the PO scrambler is made up of 192 bytes every row is the foreign key (PO) of the RS (208,192,17) of sign indicating number (RS).The output data of PO scrambler 211 is sent to staggered circuit 213, and the intercrossed data that obtains delivered to PI scrambler 214, the data of 172 bytes of the 214 pairs 208 every row of row of PI scrambler are added 10 byte RS (182,172,11) internal code (PI), as shown in figure 13.Like this, the data of PI scrambler 214 outputs 182 bytes 208 row.Output data is taken out at output terminal 216.
The error recovery and the coded data of 182 bytes, 208 row are pressed line interlacing, and are divided into 16 groups every group 13 row.These 16 groups and the record sector be associated.Each sector is made of 182 bytes, 13 row, totally 2366 bytes.These data are modulated and to additional two the synchronous code SY of every row as shown in figure 14.For modulation, use the 8-16 modulation among above-mentioned first embodiment.Every row is divided into two synchronization frames, and every frame is made up of 32 channel bit synchronous code SY and 1456 channel bit data.Figure 14 is illustrated in a modulation and an additional synchronously sector that obtains afterwards.38688 channel bit of each sector shown in Figure 14 are corresponding to 2418 bytes before the modulation.In the modulated output signal of Figure 14, use 8 kinds of synchronous code SY0 to SY7.According to the state of 8-16 conversion, these synchronous codes SY0 is the synchronous code of the method for synchronization of the synchronous code of the method for synchronization of the state 1 shown in Figure 15 A and 2 and the state 3 shown in Figure 15 B and 4 to SY7.
Select these 8 kinds of synchronous code SY0 to SY7 can use the circuit of example shown in Figure 16 to change according to 3 key informations that are used to encrypt.Represent that 8 kinds of synchronous code SY0 are carried out the EX-OR operation to everybody and the every of 3 key informations 222 of three bit data 221 of SY7 by three EXOR doors 223,224,225, thereby give the synchronous code designation data 226 that makes new advances.This has just revised the position of using the mode of synchronous code or use various synchronous codes in frame structure by encryption in above-mentioned frame structure.Certainly, 3 bit data can according to key information by shift register be shifted, replacement or conversion.Also can use functional transformation.
Also can use the ad hoc fashion different with the method for synchronization shown in Figure 15.Use the example of this ad hoc fashion to comprise to use transition length greater than the method for synchronization of the maximum transition interval of modulation signal, less than the method for synchronization of minimum transition length, in transition position the mode different or as the modulating data of the default actual signal of the method for synchronization with the method for synchronization.Be used for to constitute as shown in figure 15 according to the structure of the synchronous adjunct circuit of indication data conversion certain synchronization mode.
The following describes several row that in the lack of standardization position different, insert synchronizing signal with standard compliant regulating position.
First example is shown in Figure 17 A and 17B.Except the synchronizing signal arrangement pitch, it is identical with the example of Fig. 6 A, 6B.
In first example, as shown in figure 17, synchronizing signal is arranged with the positions lack of standardization different with signals specification position 258 259, and the interval between the position lack of standardization 259 is retained as the interval of standard, for example 91 bytes, or 1456 channel bit.That is, in the example of Figure 17 A, position 259 lack of standardization is right after standard synchronizing signal position 258.In the example of Figure 17 B, the optional position between two regulating positions 258 is used as the position of position 259 lack of standardization and the interval between this position lack of standardization 259 is retained as 91 bytes.
Second different example of synchronizing signal position comprised be provided with dispersedly the interval of the position lack of standardization of inserting synchronizing signal.In first example, the interval between the position 59 lack of standardization is set to the interval of standard, for example interval of 91 bytes.In second example, this is provided with at interval randomly.
Making the 3rd different example of synchronizing signal position be included in data division and insert synchronizing signal, make the quantity of in two synchronization frames synchronizing signal, is three or more in the quantity along synchronizing signal in every row of the horizontal direction of Figure 14 promptly.
In the 3rd example, if use the quantity of the synchronizing signal increased at data division, it is difficult then partly inserting data in sectors of data.Yet in above-mentioned first and second examples, data can be inserted in the position outside the position lack of standardization.
As above-mentioned first embodiment, can also in predeterminable area, provide the structure of removing servo or clock synchronization, the hole of for example servo releasing length, groove or minute surface.
During normal reproduction, resemble that works in the first above-mentioned embodiment and be used to reproduce the indication data that hinders the zone or hinder the zone to reproduce the correct reproduction that hinders the zone by reproducing by the pointer indication that provides at assigned address by for example in catalogue listing (TOC) district, writing at predeterminable area.
Above-mentioned second effect of implementing is with identical in conjunction with the described effect of first embodiment.
The invention is not restricted to the foregoing description, for example, the present invention not only can be applicable to the recoding/reproduction on recording medium or from recording medium, and can be applicable to the transmission of general digital signal.Various encryption technologies for example, are replaced, are shifted or change and can be used singly or in combination by shift register or by the data that various functions processing are carried out.

Claims (9)

1, a kind of being used for handled input digital data and transmitted the data transferring method of processed numerical data according to predetermined format, comprising:
In signal, provide and hinder the reproduction of reproducing operation to hinder the zone; And
Transmit the position indication information that the arrangement position that hinders the zone is reproduced in indication with data.
2, data transferring method as claimed in claim 1, it is the zone with particular sync signal different with standard compliant synchronizing signal that wherein said reproduction hinders the zone.
3, data transferring method as claimed in claim 2, wherein said particular sync signal are different with standard compliant synchronizing signal on transition length.
4, it is the hole with servo releasing length that forms thereon or the zone of groove that data transferring method as claimed in claim 1, wherein said reproduction hinder the zone.
5, data transferring method as claimed in claim 1, it is the zone that is not recorded with servo releasing length that wherein said reproduction hinders the zone.
6, it is the reproduction prohibited area that forbidden data reproduces that data transferring method as claimed in claim 1, wherein said reproduction hinder the zone.
7, at least a portion key information arrangement after described reproduction obstruction Qu Zhonghuo is right after reproduction obstruction district that data transferring method as claimed in claim 1, the signal Processing of wherein said input digital data comprise according to the encryption of being scheduled to key information and wherein be used to encrypt.
8, a kind of being used for handled input digital data and write down the data recording equipment of processed numerical data according to predetermined format, comprising:
Be used to generate and reproduce the device that hinders data, described reproduction hinders data to be used to hinder the reproduction operation of processed numerical data;
Be used to generate the device of position indication information, described position indication information is used to indicate described reproduction to hinder the record position of data; And
Pen recorder is used for hindering data recording to the indicated position of described position indication information described reproduction, and writes down described position indication information and described numerical data.
9, a kind of data reproducing device that is used for reproducing the data on the data carrier, the reproduction that records the reproduction operation that is used for hindering in the data recording area on described data carrier hinders the zone and records and is used to refer to the position indication information of reproducing the arrangement position that hinders the zone, and described data reproducing device comprises:
Be used for the position indication information pick-up unit of detection position indication information; And
Reproduce conversion control device, be used for controlling the conversion that hinders the reproduction in zone by the reproduction of indicating from the position indication information of described position indication information pick-up unit.
CN96113336A 1995-08-10 1996-08-10 Data transmitting method, data recording apparatus, data record medium and data reproducing apparatus Expired - Fee Related CN1127079C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP20448395 1995-08-10
JP204483/1995 1995-08-10
JP204483/95 1995-08-10

Publications (2)

Publication Number Publication Date
CN1154552A CN1154552A (en) 1997-07-16
CN1127079C true CN1127079C (en) 2003-11-05

Family

ID=29267285

Family Applications (1)

Application Number Title Priority Date Filing Date
CN96113336A Expired - Fee Related CN1127079C (en) 1995-08-10 1996-08-10 Data transmitting method, data recording apparatus, data record medium and data reproducing apparatus

Country Status (2)

Country Link
KR (1) KR100460158B1 (en)
CN (1) CN1127079C (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6765739B2 (en) * 2002-03-18 2004-07-20 Hewlett-Packard Development Company, L.P. Method and apparatus for discouraging duplication of digital data
EP1429327A3 (en) * 2002-12-13 2005-03-09 Sony DADC Austria AG Data recording method and data recording medium

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4879704A (en) * 1986-07-21 1989-11-07 Matsushita Electric Industrial Co., Ltd. Optical disk, optical disk recording and reproducing apparatus and copy preventive method for optical disks
US4975898A (en) * 1986-12-27 1990-12-04 Sony Corporation Method and apparatus for preventing copying of an optical disk
US5023854A (en) * 1986-02-07 1991-06-11 Matsushita Electric Industrial Co., Ltd. Disc having a data read-only area and a data recording arm and a recording reproducing system therefor
US5428598A (en) * 1989-09-21 1995-06-27 U.S. Philips Corporation Record carrier with copy bits

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5023854A (en) * 1986-02-07 1991-06-11 Matsushita Electric Industrial Co., Ltd. Disc having a data read-only area and a data recording arm and a recording reproducing system therefor
US4879704A (en) * 1986-07-21 1989-11-07 Matsushita Electric Industrial Co., Ltd. Optical disk, optical disk recording and reproducing apparatus and copy preventive method for optical disks
US4975898A (en) * 1986-12-27 1990-12-04 Sony Corporation Method and apparatus for preventing copying of an optical disk
US5428598A (en) * 1989-09-21 1995-06-27 U.S. Philips Corporation Record carrier with copy bits

Also Published As

Publication number Publication date
KR970012162A (en) 1997-03-29
CN1154552A (en) 1997-07-16
KR100460158B1 (en) 2005-04-06

Similar Documents

Publication Publication Date Title
CN1127078C (en) Signal recording apparatus, signal record medium and signal reproducing apparatus
JP3467964B2 (en) Data recording device and method, data reproducing device and method, recording medium, and data transmission method
US7249305B2 (en) Signal processing method and apparatus, signal reproducing method and apparatus, and recording medium
CN1173273C (en) Method and device for recording data, data recording medium and method and device for reproducing data
CN100517482C (en) Method for copy protecting a record carrier, copy protected record carrier and means for detecting access control information
CN1252713C (en) Signal processing method, device and recording medium
CN1156841C (en) Data storage medium, data recording apparatus and method, reproducing apparatus and method
CN1104721C (en) Data recording aparatus, and method, and data reproducing apparatus
CN1127079C (en) Data transmitting method, data recording apparatus, data record medium and data reproducing apparatus
US20050193313A1 (en) Copy protection for transmission of information
JP3735591B2 (en) Signal processing apparatus, signal processing method, and storage medium
KR101016988B1 (en) Information carrier comprising access information
CN1284174C (en) Digital data recording medium, recording method, recording device, reproduction method, and reproduction device
JP3668176B2 (en) Information recording method and apparatus with confidential information, reproducing method and apparatus, and recording medium
CN1751350A (en) Data recording method and device, data recording medium, data reproduction method and device, data transmission method and device, and data reception method and device
JP2002093058A (en) Signal processing method and device and information recording medium
US20050254387A1 (en) Recording medium processing device
US7203141B2 (en) Recording medium, recording method, recording device, and reproduction method and reproducer
JP3828288B2 (en) Information generating method and apparatus, information reproducing method and apparatus, and information recording medium
JP2005339740A (en) Signal generating device, signal reproducing device, recording medium processing device, signal generating method, signal reproducing method and recording medium
JP2006197606A (en) Signal processing method and apparatus, signal reproducing method and apparatus, and recording medium

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20031105

Termination date: 20130810