SE8405573L - Selektiv forvrengning i kompaktskivsystemet - Google Patents
Selektiv forvrengning i kompaktskivsystemetInfo
- Publication number
- SE8405573L SE8405573L SE8405573A SE8405573A SE8405573L SE 8405573 L SE8405573 L SE 8405573L SE 8405573 A SE8405573 A SE 8405573A SE 8405573 A SE8405573 A SE 8405573A SE 8405573 L SE8405573 L SE 8405573L
- Authority
- SE
- Sweden
- Prior art keywords
- bits
- information
- unbalance
- channel bits
- symbol blocks
- Prior art date
Links
- 230000003287 optical effect Effects 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/02—Recording, reproducing, or erasing methods; Read, write or erase circuits therefor
- G11B5/09—Digital recording
-
- 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
- G11B20/00579—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 data encoding, e.g., modulation schemes violating run-length constraints, causing excessive DC content, or involving uncommon codewords or sync patterns
-
- 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
- G11B19/20—Driving; Starting; Stopping; Control thereof
-
- 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
-
- 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
-
- 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
- G11B20/14—Digital recording or reproducing using self-clocking codes
- G11B20/1403—Digital recording or reproducing using self-clocking codes characterised by the use of two levels
- G11B20/1423—Code representation depending on subsequent bits, e.g. delay modulation, double density code, Miller code
- G11B20/1426—Code representation depending on subsequent bits, e.g. delay modulation, double density code, Miller code conversion to or from block codes or representations thereof
-
- 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
- G11B27/3063—Subcodes
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/007—Arrangement of the information on the record carrier, e.g. form of tracks, actual track shape, e.g. wobbled, or cross-section, e.g. v-shaped; Sequential information structures, e.g. sectoring or header formats within a track
- G11B7/013—Arrangement of the information on the record carrier, e.g. form of tracks, actual track shape, e.g. wobbled, or cross-section, e.g. v-shaped; Sequential information structures, e.g. sectoring or header formats within a track for discrete information, i.e. where each information unit is stored in a distinct discrete location, e.g. digital information formats within a data block or sector
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
- H04L25/03828—Arrangements for spectral shaping; Arrangements for providing signals with specified spectral properties
- H04L25/03866—Arrangements for spectral shaping; Arrangements for providing signals with specified spectral properties using scrambling
-
- 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
- G11B20/14—Digital recording or reproducing using self-clocking codes
- G11B20/1403—Digital recording or reproducing using self-clocking codes characterised by the use of two levels
- G11B20/1423—Code representation depending on subsequent bits, e.g. delay modulation, double density code, Miller code
- G11B20/1426—Code representation depending on subsequent bits, e.g. delay modulation, double density code, Miller code conversion to or from block codes or representations thereof
- G11B2020/1461—8 to 14 modulation, e.g. the EFM code used on CDs or mini-discs
-
- 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
- G11B20/14—Digital recording or reproducing using self-clocking codes
- G11B20/1403—Digital recording or reproducing using self-clocking codes characterised by the use of two levels
- G11B20/1423—Code representation depending on subsequent bits, e.g. delay modulation, double density code, Miller code
- G11B20/1426—Code representation depending on subsequent bits, e.g. delay modulation, double density code, Miller code conversion to or from block codes or representations thereof
- G11B2020/1469—Code representation depending on subsequent bits, e.g. delay modulation, double density code, Miller code conversion to or from block codes or representations thereof modulation code with one or more merging bits between consecutive codewords
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Security & Cryptography (AREA)
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
- Optical Recording Or Reproduction (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL8303859A NL8303859A (nl) | 1983-11-10 | 1983-11-10 | Selektief scramblen bij compact disc. |
Publications (3)
Publication Number | Publication Date |
---|---|
SE8405573D0 SE8405573D0 (sv) | 1984-11-07 |
SE8405573L true SE8405573L (sv) | 1985-05-11 |
SE455028B SE455028B (sv) | 1988-06-13 |
Family
ID=19842694
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE8405573A SE455028B (sv) | 1983-11-10 | 1984-11-07 | Forfarande for selektiv forvrengning i kompaktskivsystem, samt apparat for uppteckning resp avlesning av information for utforande av forfarandet |
Country Status (13)
Country | Link |
---|---|
US (1) | US4603413A (sv) |
JP (1) | JPS60115072A (sv) |
KR (1) | KR850004144A (sv) |
AU (1) | AU570881B2 (sv) |
BE (1) | BE901020A (sv) |
CA (1) | CA1224266A (sv) |
CH (1) | CH665726A5 (sv) |
DE (1) | DE3438565A1 (sv) |
ES (1) | ES8601542A1 (sv) |
FR (1) | FR2559935A1 (sv) |
GB (1) | GB2149560B (sv) |
NL (1) | NL8303859A (sv) |
SE (1) | SE455028B (sv) |
Families Citing this family (35)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6113715A (ja) * | 1984-06-28 | 1986-01-22 | Mitsubishi Electric Corp | 2段符号化された符号の復号装置 |
JP2565184B2 (ja) * | 1985-02-28 | 1996-12-18 | ソニー株式会社 | 信号選択回路 |
EP0202773B1 (en) * | 1985-04-22 | 1991-01-16 | Csk Corporation | Binary encoding method for data read from optical record and device therefor |
US4726029A (en) * | 1985-09-10 | 1988-02-16 | Hycom Incorporated | Error-correcting modem |
JP2666367B2 (ja) * | 1988-05-24 | 1997-10-22 | ソニー株式会社 | Mスクランブル回路 |
JPH0244583A (ja) * | 1988-08-05 | 1990-02-14 | Toshiba Corp | データ伝送装置 |
NL8802291A (nl) * | 1988-09-16 | 1990-04-17 | Koninkl Philips Electronics Nv | Inrichting voor het verzenden van datawoorden welke een gedigitaliseerde analoog signaal vertegenwoordigen en een inrichting voor het ontvangen van de verzonden datawoorden. |
KR910013186A (ko) * | 1989-12-29 | 1991-08-08 | 강진구 | Efm 변조회로 |
DE69331166T2 (de) * | 1992-02-03 | 2002-08-22 | Koninklijke Philips Electronics N.V., Eindhoven | Übertragung von digitalen Breitbandsignalen |
EP0554934B1 (en) * | 1992-02-03 | 2001-11-21 | Koninklijke Philips Electronics N.V. | Transmission of digital wideband signals |
DE4329712C2 (de) * | 1993-09-02 | 1997-07-10 | Sonopress Prod | CD-Masteringverfahren |
US5949750A (en) * | 1993-11-30 | 1999-09-07 | Victor Company Of Japan, Ltd. | Method and apparatus for recording an information signal with scrambling thereof |
JP2927163B2 (ja) * | 1993-11-30 | 1999-07-28 | 日本ビクター株式会社 | 情報信号記録方法及び情報信号記録装置 |
EP0660325B1 (en) * | 1993-12-21 | 1999-11-10 | Sony Corporation | Method and apparatus for recording data on recording medium |
DE69615548T2 (de) * | 1995-04-10 | 2002-05-29 | Kabushiki Kaisha Toshiba, Kawasaki | Optischer aufzeichnungsträger und verfahren zur aufzeichnung und wiedergabe dessen signalen |
US5699434A (en) * | 1995-12-12 | 1997-12-16 | Hewlett-Packard Company | Method of inhibiting copying of digital data |
KR100219481B1 (ko) * | 1996-05-23 | 1999-09-01 | 윤종용 | 시디롬 디코더의 디스크램블링 데이타 생성방법 및그장치와이를이용한디스크램블러 |
KR0176141B1 (ko) * | 1996-06-25 | 1999-04-15 | 김광호 | 메모리 다중 영역 관리장치 및 방법 |
USRE39771E1 (en) * | 1996-07-31 | 2007-08-14 | Matsushita Electric Industrial Co., Ltd. | Code conversion method and apparatus, code recording medium, code recording apparatus and code reproducing apparatus |
US5898394A (en) * | 1996-07-31 | 1999-04-27 | Matsushita Electric Industrial Co., Ltd. | Code conversion method and apparatus, code recording medium, code recording apparatus and code reproducing apparatus |
US7155016B1 (en) | 1999-08-20 | 2006-12-26 | Paradyne Corporation | Communication device and method for using non-self-synchronizing scrambling in a communication system |
EP1305799A1 (en) * | 2000-07-28 | 2003-05-02 | Macrovision Europe Limited | Copy protection for optical discs |
WO2003007300A1 (en) * | 2001-07-09 | 2003-01-23 | Seagate Technology Llc | Method and apparatus for suppressing low frequency content in digital data |
CN1628350A (zh) * | 2001-07-23 | 2005-06-15 | 皇家菲利浦电子有限公司 | 编码数据比特的方法和设备 |
GB0304015D0 (en) * | 2003-02-21 | 2003-03-26 | Macrovision Europ Ltd | Copy protection for applications |
JP2003196829A (ja) * | 2001-12-25 | 2003-07-11 | Sanyo Electric Co Ltd | データ処理装置 |
JP2003323761A (ja) * | 2002-05-02 | 2003-11-14 | Sony Corp | デジタルデータの記録媒体、記録方法、記録装置、再生方法、再生装置、送信方法および送信装置 |
GB0301700D0 (en) * | 2003-01-24 | 2003-02-26 | Macrovision Corp | The copy protection of optical discs |
GB0304016D0 (en) * | 2003-02-21 | 2003-03-26 | Macrovision Europ Ltd | The transmission of information |
US20050060620A1 (en) * | 2003-09-11 | 2005-03-17 | Hogan Josh N. | Method of increasing capacity of an optical disc |
GB2414337B (en) | 2004-05-19 | 2008-10-29 | Macrovision Europ Ltd | The copy protection of optical discs |
US7624282B2 (en) * | 2004-10-12 | 2009-11-24 | Macrovision Corporation | Method and apparatus for DVD copy protection with selective data pattern insertion |
US20060253722A1 (en) * | 2005-04-21 | 2006-11-09 | Nielsen Hans H | Uncopyable optical media through sector errors |
US7701825B2 (en) * | 2005-06-17 | 2010-04-20 | Macrovision Corporation | Apparatus for and a method of authenticating recording media |
WO2006136986A2 (en) * | 2005-06-21 | 2006-12-28 | Koninklijke Philips Electronics N.V. | Device and a method for embedding a secondary information signal in the channel data stream of a primary information signal using scrambling |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US31311A (en) * | 1861-02-05 | Method oe believing geographical outlines on molded elastic globes | ||
US4150404A (en) * | 1975-07-08 | 1979-04-17 | U.S. Philips Corporation | Device for transferring digital information |
NL7508096A (nl) * | 1975-07-08 | 1977-01-11 | Philips Nv | Inrichting voor het overdragen van digitale infor- matie. |
US4234898A (en) * | 1978-03-15 | 1980-11-18 | Nippon Hoso Kyokai | Digital magnetic recording and reproducing apparatus |
US4282551A (en) * | 1979-04-11 | 1981-08-04 | Hitachi, Ltd. | PCM Recording and reproducing apparatus |
DE2922082C2 (de) * | 1979-05-31 | 1981-08-27 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Verfahren und Anordnung zur Übertragung einer Binärfolge |
JPS5644238A (en) * | 1979-09-20 | 1981-04-23 | Fujitsu Ltd | Supervisory circuit of reverse diffusion device |
NL8003476A (nl) * | 1980-06-16 | 1982-01-18 | Philips Nv | Werkwijze voor het coderen van databits op een regis- tratiedrager, inrichting voor het uitvoeren van de werkwijze, registratiedrager voorzien van een infor- matiestructuur en inrichting voor het decoderen van het van de registratiedrager uitgelezen signaal. |
NL8003474A (nl) * | 1980-06-16 | 1982-01-18 | Philips Nv | Werkwijze voor het coderen van databits op een regis- tratiedrager, inrichting voor het uitvoeren van de werkwijze en registratiedrager voorzien van een informatiestructuur. |
NL8006165A (nl) * | 1980-11-12 | 1982-06-01 | Philips Nv | Systeem voor het overdragen van digitale informatie, codeerinrichting voor toepassing in dat systeem, decodeerinrichting voor toepassing in dat systeem en registratiedrager voor toepassing in dat systeem. |
JPS583118A (ja) * | 1981-06-30 | 1983-01-08 | Sony Corp | デイスク再生装置の波形変換回路 |
JPS5875353A (ja) * | 1981-10-29 | 1983-05-07 | Pioneer Electronic Corp | デ−タ変換方式 |
-
1983
- 1983-11-10 NL NL8303859A patent/NL8303859A/nl not_active Application Discontinuation
-
1984
- 1984-05-29 US US06/614,934 patent/US4603413A/en not_active Expired - Fee Related
- 1984-10-20 DE DE19843438565 patent/DE3438565A1/de not_active Withdrawn
- 1984-11-07 ES ES537436A patent/ES8601542A1/es not_active Expired
- 1984-11-07 CH CH5338/84A patent/CH665726A5/de not_active IP Right Cessation
- 1984-11-07 SE SE8405573A patent/SE455028B/sv not_active IP Right Cessation
- 1984-11-07 GB GB08428108A patent/GB2149560B/en not_active Expired
- 1984-11-08 CA CA000467393A patent/CA1224266A/en not_active Expired
- 1984-11-08 BE BE0/213982A patent/BE901020A/fr not_active IP Right Cessation
- 1984-11-09 AU AU35258/84A patent/AU570881B2/en not_active Ceased
- 1984-11-09 JP JP59235322A patent/JPS60115072A/ja active Pending
- 1984-11-09 FR FR8417098A patent/FR2559935A1/fr not_active Withdrawn
- 1984-11-10 KR KR1019840007060A patent/KR850004144A/ko not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
SE455028B (sv) | 1988-06-13 |
DE3438565A1 (de) | 1985-05-23 |
FR2559935A1 (fr) | 1985-08-23 |
GB2149560B (en) | 1986-12-10 |
CH665726A5 (de) | 1988-05-31 |
GB8428108D0 (en) | 1984-12-12 |
ES537436A0 (es) | 1985-10-16 |
KR850004144A (ko) | 1985-07-01 |
ES8601542A1 (es) | 1985-10-16 |
JPS60115072A (ja) | 1985-06-21 |
CA1224266A (en) | 1987-07-14 |
BE901020A (fr) | 1985-05-08 |
AU570881B2 (en) | 1988-03-24 |
US4603413A (en) | 1986-07-29 |
SE8405573D0 (sv) | 1984-11-07 |
NL8303859A (nl) | 1985-06-03 |
GB2149560A (en) | 1985-06-12 |
AU3525884A (en) | 1985-05-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
NUG | Patent has lapsed |
Ref document number: 8405573-0 Effective date: 19891120 Format of ref document f/p: F |