GB0118161D0 - The copy protection of digital audio data - Google Patents
The copy protection of digital audio dataInfo
- Publication number
- GB0118161D0 GB0118161D0 GBGB0118161.9A GB0118161A GB0118161D0 GB 0118161 D0 GB0118161 D0 GB 0118161D0 GB 0118161 A GB0118161 A GB 0118161A GB 0118161 D0 GB0118161 D0 GB 0118161D0
- Authority
- GB
- United Kingdom
- Prior art keywords
- audio data
- digital audio
- copy protection
- copy
- protection
- 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.)
- Withdrawn
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F12/00—Accessing, addressing or allocating within memory systems or architectures
- G06F12/14—Protection against unauthorised use of memory or access to memory
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
- G10L19/018—Audio watermarking, i.e. embedding inaudible data in the audio signal
-
- 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
- G11B20/00086—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy
- G11B20/00884—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving a watermark, i.e. a barely perceptible transformation of the original data which can nevertheless be recognised by an algorithm
-
- 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
- G11B20/00884—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving a watermark, i.e. a barely perceptible transformation of the original data which can nevertheless be recognised by an algorithm
- G11B20/00891—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving a watermark, i.e. a barely perceptible transformation of the original data which can nevertheless be recognised by an algorithm embedded in audio data
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
- H04N5/91—Television signal processing therefor
- H04N5/913—Television signal processing therefor for scrambling ; for copy protection
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Security & Cryptography (AREA)
- Multimedia (AREA)
- Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Human Computer Interaction (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Acoustics & Sound (AREA)
- Health & Medical Sciences (AREA)
- Computational Linguistics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB0118161A GB2382670A (en) | 2001-07-25 | 2001-07-25 | A method of copy protection of digital data by altering codewords to introduce impulse errors which are then marked as uncorrectable |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB0118161A GB2382670A (en) | 2001-07-25 | 2001-07-25 | A method of copy protection of digital data by altering codewords to introduce impulse errors which are then marked as uncorrectable |
Publications (2)
Publication Number | Publication Date |
---|---|
GB0118161D0 true GB0118161D0 (en) | 2001-09-19 |
GB2382670A GB2382670A (en) | 2003-06-04 |
Family
ID=9919178
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB0118161A Withdrawn GB2382670A (en) | 2001-07-25 | 2001-07-25 | A method of copy protection of digital data by altering codewords to introduce impulse errors which are then marked as uncorrectable |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB2382670A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2397911B (en) * | 2003-01-10 | 2005-03-09 | Macrovision Corp | The copy protection of digital data |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1126078C (en) * | 1994-04-18 | 2003-10-29 | 松下电器产业株式会社 | Method and apparatus for preventing illegal copying and illegal installation of information on optical recording medium |
IL131545A0 (en) * | 1999-08-23 | 2001-01-28 | Ttr Technologies Ltd | Copy-protected digital audio compact disc and method and system for producing same |
IL133236A0 (en) * | 1999-11-30 | 2001-03-19 | Ttr Technologies Ltd | Copy-protected digital audio compact disc and method and system for producing same |
GB2377511B (en) * | 2001-07-03 | 2005-05-11 | Macrovision Europ Ltd | The copy protection of digital data |
-
2001
- 2001-07-25 GB GB0118161A patent/GB2382670A/en not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
GB2382670A (en) | 2003-06-04 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |