Patents
Patents for G11B 20 - Signal processing not specific to the method of recording or reproducing; Circuits therefor (81,980)
07/2000
07/04/2000US6085022 Digital VTR for recording special replay video data in track areas designated for digital video and digital audio
07/04/2000US6085021 Information recording medium apparatus for recording the same and apparatus for reproducing the same
07/04/2000US6084924 Asynchronous low sampling rate read channel using combination midpoint and linear interpolation
07/04/2000US6084839 Method of reducing formatting time for rewritable compact disks by formatting less than the entire logical format
07/04/2000US6084837 Apparatus for reproducing information recorded on a recording medium, having a crosstalk reducing circuit
07/04/2000US6084831 Apparatus and method of averaging disk transfer rate including division of disks into disks accessible in a radially inward direction and disks accessible in a radially outward direction
07/04/2000US6084830 Signal reproducing apparatus for reproducing information by moving magnetic walls
07/04/2000US6084740 Optical servo system for a tape drive
07/04/2000US6084739 Write synchronization system on a headerless format magnetic disk device
07/04/2000US6084734 Data recovery using targeted ECC correction
07/04/2000US6084733 Storage device and error recovery method executing a plurality of error recovery routines based on error type
07/04/2000US6084732 Method of selecting zone lay-out of a hard disk drive on basis of head/recording medium performance
07/04/2000US6084731 Disk-like information recording medium, information recording/reproducing apparatus, and synchronizing method utilizing rotational angle
07/04/2000US6084730 Information transmission system using data compression and/or error detection
07/04/2000US6084729 Storage device for reliably maintaining data in a reproducible state for a long period of time
07/04/2000US6084636 Video signal encoding method and apparatus employing an adaptive quantization technique
07/04/2000US6084536 Conversion of a sequence of m-bit information words into a modulated signal
07/04/2000US6084535 System and method for generating many ones codes with hamming distance after precoding
07/04/2000US6083667 Security against an illegally reproducing process, surface formed with a track of pits, reflecting layer extends on the surface of the transparent substrate.
06/2000
06/29/2000WO2000038429A1 Local video and audio network with optical data line
06/29/2000WO2000038426A1 Method and system for protecting digital data from unauthorized copying
06/29/2000WO2000038329A1 Device for encoding n-bit source words into corresponding m-bit channel words and decoding m-bit channel words into corresponding n-bit source words
06/29/2000WO2000038328A1 Device for encoding n-bit source words into corresponding m-bit channel words and decoding m-bit channel words into corresponding n-bit source words
06/29/2000WO2000038187A1 Master music data generating device for generating music data having copy-preventing effect, and method therefor
06/29/2000WO1998047135A3 Disk and disk recording apparatus
06/29/2000DE19963133A1 Magnetic recording device uses frequency modulation circuit for providing modified FM luminance signal which is filtered via bandpass filter before frequency conversion to provide FM luminance signal
06/29/2000DE19859923A1 Wiedergabegerät für Informationsblöcke enthaltende Aufzeichnungsträger Reproducing apparatus for recording media containing information blocks
06/29/2000DE19859845A1 Wiedergabegerät für Informationsblöcke enthaltende Aufzeichnungsträger Reproducing apparatus for recording media containing information blocks
06/29/2000DE19858493A1 Lokales Netzwerk Local network
06/29/2000CA2321504A1 Device for encoding n-bit source words into corresponding m-bit channel words and decoding m-bit channel words into corresponding n-bit source words
06/29/2000CA2321255A1 Method and system for protecting digital data from unauthorized copying
06/29/2000CA2321208A1 Device for encoding n-bit source words into corresponding m-bit channel words and decoding m-bit channel words into corresponding n-bit source words
06/28/2000EP1014717A2 A data recording apparatus, a data recording medium, a data reproducing apparatus, and a method of scrambling and de-scrambling data
06/28/2000EP1014373A2 Optical disc drive
06/28/2000EP1014372A1 Replay appliance for recording media containing information blocks
06/28/2000EP1014371A2 Method for generating information for fast searching of packet data, recording medium storing the information, and recording and/or playback apparatus using the same
06/28/2000EP1014370A2 Method , recording medium , and recording, editing and recording and playback apparatus for seamless reproduction
06/28/2000EP1014365A2 Recording medium defect management
06/28/2000EP1014364A1 Reception method over a chain of interconnected AV apparatus
06/28/2000EP1014363A2 Reproducing apparatus
06/28/2000EP1014362A1 Method and device for delaying selected transitions in a digital data stream
06/28/2000EP1014361A2 Technique for controlling copying of data
06/28/2000EP1014355A1 Optical storing apparatus and recording and reproducing method of optical storage medium
06/28/2000EP1014346A2 Apparatus for reading and/or writing data markings of an optical recording medium
06/28/2000EP1012843A1 Recording and reproducing apparatus provided with teletext recording capability
06/28/2000EP1012842A1 Global access system of multi-media related information
06/28/2000EP1012840A1 A method and a system for transferring information using an encryption mode indicator
06/28/2000EP0832536B1 Bus and interface system for consumer digital equipment
06/28/2000EP0729621B1 System and method for controlling play of multiple audio tracks of a software carrier
06/28/2000EP0727074B1 Data block format for software carrier and player therefor
06/28/2000EP0692123B1 Synchronized clocks and media players
06/28/2000EP0685137B1 Adaptive variable-length coding and decoding methods for image data
06/28/2000CN1258075A Optical disk, and device and method for mfg. optical disk, recording or reproducing data of optical disk
06/28/2000CN1258073A Recording and/or reproducing apparatus and method, and assignment medium
06/28/2000CN1258072A Apparatus for replaying recording medium comprising information block
06/28/2000CN1258071A Apparatus for replaying recording medium comprising information block
06/28/2000CN1258070A Method for detection synchronous information needed for record information in decoding CD series code cut area
06/28/2000CN1258069A Transmission device and reproducing device
06/28/2000CN1054011C Method and detector for asynchronous detection of signal waveform threshold change
06/28/2000CN1053987C Modulating method, demodulating method, modulating apparatus, and demodulating apparatus
06/28/2000CN1053986C Modulating method and demodulating method as well as modulating apparatus and demodulating apparatus
06/28/2000CN1053983C Apparatus and method for detecting digital replaying signal
06/28/2000CN1053977C Arrayed recording apparatus
06/27/2000US6081897 Apparatus for monitoring and preventing unauthorized copying of digital data
06/27/2000US6081794 Data copyright management system
06/27/2000US6081785 Optical disk, optical recorder, optical reproducer, crytocommunication system and program license system
06/27/2000US6081784 Methods and apparatus for encoding, decoding, encrypting and decrypting an audio signal, recording medium therefor, and method of transmitting an encoded encrypted audio signal
06/27/2000US6081649 Digital VTR for processing intra-picture data according to replay modes
06/27/2000US6081537 Signal trap device and method, recording medium replay device and method, and signal extraction device and method
06/27/2000US6081526 Apparatus and methods for transmitting an MPEG information signal, and a method for reproducing that signal
06/27/2000US6081493 Apparatus for demodulating digital FM signal in an optical disc device
06/27/2000US6081490 Clock signal generating system
06/27/2000US6081398 Recording/reproducing apparatus with read-after-write capability
06/27/2000US6081395 Apparatus and method for generating a digital tracking signal with a frequency spectrum corresponding to one or more n-bit words
06/27/2000US6081295 Method and apparatus for transcoding bit streams with video data
06/27/2000US6081208 Image information encoding/decoding system
06/27/2000CA2183282C Signal restoration using left-sided and right-sided autoregressive parameters
06/27/2000CA2076666C Data storage apparatus and method
06/22/2000WO2000036838A2 Digital video processing to inhibit unauthorised copies
06/22/2000WO2000036758A1 Audio system and audio interface
06/22/2000WO2000036754A1 Entropy code mode switching for frequency-domain audio coding
06/22/2000WO2000036605A1 Method and device for generating digital data watermarked with authentication data
06/22/2000WO2000036603A1 Multitrack disk player and method of read error recovery
06/22/2000WO2000036602A1 Frequency control/phase synchronizing circuit
06/22/2000WO2000036601A1 Antihacking optical recording disc and method for reading same
06/22/2000WO2000036600A1 Record carrier, and apparatus and method for playing back a record carrier, and method of manufacturing a record carrier
06/22/2000WO2000036595A1 Multitrack disk player and method of reproduction
06/22/2000WO1999064943A3 Method of optimizing the topology of the ieee 1394 serial bus
06/22/2000WO1999060741A9 Method for minimizing pirating or unauthorized copying of data
06/21/2000EP1011269A1 System for processing an information signal
06/21/2000EP1011103A1 Copy protection for CD-ROM
06/21/2000EP1011100A2 An optical disk recording/reproduction apparatus
06/21/2000EP1011098A2 An optical disk and a recording/reproduction apparatus
06/21/2000EP1011097A2 An optical disk and a recording/reproduction apparatus
06/21/2000EP1010318A1 Object-based audio-visual terminal and bitstream structure
06/21/2000EP1010291A1 A tamper resistant player for scrambled contents
06/21/2000EP1010175A1 Optical storage device
06/21/2000EP1010172A1 Methods and apparatus for concurrently processing data from multiple tracks of an optical storage medium
06/21/2000EP1010171A2 Methods and apparatus for synchronously reading multiple tracks of an optical storage medium using multiple reading beams
06/21/2000EP1010086A1 Method and apparatus for improving disk drive performance