Patents
Patents for G11B 20 - Signal processing not specific to the method of recording or reproducing; Circuits therefor (81,980)
10/2000
10/17/2000US6133861 Selectable delay circuit having immunity to variations in fabrication and operating condition for write precompensation in a read/write channel
10/17/2000US6131807 Information recording medium and information reproduction system
10/17/2000CA2185372C Method and apparatus for generating high rate codes for recording information on a magnetic medium
10/12/2000WO2000060873A1 Data format for a streaming information receiver
10/12/2000WO2000060820A2 Streaming information appliance with buffer for time shifting
10/12/2000WO2000060806A2 Dropout resistant phase-locked loop
10/12/2000WO2000060746A2 Matrixing for losseless encoding and decoding of multichannels audio signals
10/12/2000WO2000060598A1 Optical disc, recording device and reproducing device
10/12/2000WO2000060597A1 Optical disc, recording device and reproducing device
10/12/2000WO2000060594A1 Method and apparatus for correcting defective data recorded on recording medium
10/12/2000WO2000060593A1 Erasable worm optical disk and method of writing thereto multiple times
10/12/2000WO2000060592A1 Information appliance for receiving streaming information and reading the information with a plurality of reader modules
10/12/2000WO2000060591A1 Streaming information appliance with buffer read and write synchronization
10/12/2000WO2000060590A1 Streaming information appliance with circular buffer
10/12/2000WO2000060589A1 System and method for digitally marking a file with a removable mark
10/12/2000WO2000039797B1 Data copying system and method, data reading apparatus, data writing apparatus and data recording medium
10/12/2000WO2000036838A3 Digital video processing to inhibit unauthorised copies
10/12/2000WO2000030076A3 Methods for monitoring or adjusting a tape drive using control data packets
10/12/2000DE19961066A1 Schaltung für das Detektieren des Spiegelsignals in einem optischen Plattenlaufwerk und dafür geeignetes Verfahren Circuit for detecting the image signal in an optical disk drive, and suitable for this method
10/12/2000CA2742649A1 Matrix improvements to lossless encoding and decoding
10/11/2000EP1043878A2 Information processing apparatus and method, information management apparatus and method and information providing medium
10/11/2000EP1043860A2 Security units, memory units, data processing units and data encryption methods
10/11/2000EP1043729A2 Memory and data processing units, and data processing methods
10/11/2000EP1043726A1 Digital data recording/reproducing apparatus
10/11/2000EP1043725A2 Magnetic recording and/or reproduction methods and apparatus
10/11/2000EP1043724A1 Optical disc, optical disc recording and reproducing apparatus, and optical disc recording and reproducing method
10/11/2000EP1043723A1 Information recording medium, information recording method, information recording apparatus and information reproducing apparatus
10/11/2000EP1043722A2 Digital data recording device
10/11/2000EP1043721A2 A method for recording digital data
10/11/2000EP1020049A4 Tamper resistant methods and apparatus
10/11/2000EP0978172B1 Method for masking defects in a stream of audio data
10/11/2000CN1269904A Constant density servo information in disc drive
10/11/2000CN1269672A Additional information insertion method, detection method, insertion apparatus and detection apparatus
10/11/2000CN1269668A Record searching information and method and apparatus for searching digital data stream of record
10/11/2000CN1269644A Wireless apparatus and data replaying apparatus
10/11/2000CN1269639A Signal treatment apparatus
10/11/2000CN1269576A Digital signal recording method and aparatus and recording medium therefor
10/11/2000CN1269524A Digital sound-recording on cine film
10/10/2000US6131178 Error correcting decoding apparatus of extended Reed-Solomon code, and error correcting apparatus of singly or doubly extended Reed-Solomon codes
10/10/2000US6131161 Marking a digitally encoded video and/or audio signal
10/10/2000US6131137 Drive control unit and optical memory apparatus
10/10/2000US6130988 Digital video disk player and reproduction control method thereof
10/10/2000US6130987 Audio-video synchronous playback apparatus
10/10/2000US6130870 Recording medium, recording apparatus, reproducing method, and reproducing device
10/10/2000US6130869 Multiple-channel information reproducing apparatus including buffer memories assigned to channels respectively
10/10/2000US6130867 Optical disc, optical disc device, and method for recording an optical disc
10/10/2000US6130866 Error-correcting storage medium reproduction apparatus and method using frames and synchronization patterns
10/10/2000US6130796 Adaptive track pitch control method and apparatus for disk drives
10/10/2000US6130794 Statistical monitoring of data channels for enhanced data recovery performance
10/10/2000US6130793 Thermal asperity detection method, thermal asperity compensation method, magnetic disk unit and retry method therefor
10/10/2000US6130629 Rate 24/25 (0,9) code method and system for PRML recording channels
10/10/2000US6129283 Information reproduction apparatus for optically reading a code pattern from a recording medium and outputting desired information pieces of the read code pattern
10/05/2000WO2000059234A1 Method of and device for encoding an information stream
10/05/2000WO2000059216A1 Trick playback of digital video data
10/05/2000WO2000059165A1 A method and apparatus for preventing unauthorized copying and distributing of electronic messages transmitted over a network
10/05/2000WO2000059148A1 Digital watermarking method and apparatus
10/05/2000WO2000058965A1 Phase-locked loop apparatus
10/05/2000WO2000058964A1 An apparatus for reproducing digital voice
10/05/2000WO2000058963A2 Copy security for portable music players
10/05/2000WO2000058962A1 Usage dependent ticket to protect copy-protected material
10/05/2000WO2000058952A1 Method and apparatus for recording digital audio data on a cassette tape
10/04/2000EP1041820A2 Video and audio multiplex recording apparatus
10/04/2000EP1041576A2 Non-volatile record medium, recording medium, and recording apparatus
10/04/2000EP1041575A2 Editing apparatus and editing method
10/04/2000EP1041574A2 Nonvolatile memory
10/04/2000EP1041573A2 Reproducing apparatus and reproducing method
10/04/2000EP1041572A2 Nonvolatile memory and nonvolatile memory reproducing apparatus
10/04/2000EP1041569A1 Optical disc, recording device and reproducing device
10/04/2000EP1041566A1 Optical disk, reproduction apparatus, reproduction method, and recording medium
10/04/2000EP1041565A1 Optical disc, recording device and reproducing device
10/04/2000EP1041561A2 Information recording medium, information recording method,information recording apparatus and information reproducing apparatus
10/04/2000EP1041560A2 Information recording medium, information recording method, information recording apparatus and information reproducing apparatus
10/04/2000EP1041559A2 Information recording medium, information recording method, information recording apparatus and information reproducing apparatus
10/04/2000EP1041558A2 Optical disk controller and optical disk device
10/04/2000EP1041557A1 Data transmission apparatus, data transmission method, and data recording medium
10/04/2000EP1041556A2 Data demodulating method and apparatus
10/04/2000EP1041555A2 Digital data reproducing device
10/04/2000EP1041554A2 Method for recording digital data
10/04/2000EP1041542A2 Optical recording and reproducing of superimposed information
10/04/2000EP1041479A1 Data processing apparatus and data processing method thereof
10/04/2000EP1040657A1 Method of time shifting to simultaneously record and play a data stream
10/04/2000EP1040651A1 Striping data across disk zones
10/04/2000EP1040583A1 Encoding multiword information by wordwise interleaving
10/04/2000EP1040481A1 Method for reproducing a recording signal with positioning means
10/04/2000EP1040480A2 Flexible management of multiple file systems
10/04/2000EP1040477A2 Recording and reproducing device for multiple-speed reproduction
10/04/2000EP1040476A2 Recording device having detection means for the detection of additional information in reception data
10/04/2000EP1040475A2 Recording and reproduction of an information signal in/from a track on a record carrier
10/04/2000EP1040473A2 Adaptive and selective cancellation of inter-symbol interference of a read channel in storage technologies
10/04/2000EP1040470A1 Optical disc and apparatus for scanning the optical disc
10/04/2000EP1040468A2 Opcode-driven buffer manager for use in data storage devices
10/04/2000EP0812513B1 Method and system for reading data for a number of users
10/04/2000CN1269073A Method and apparatus for determining bit error in a sampled data system
10/04/2000CN1269049A Recording/reproduction and/or editing of real time information on/from a disc like record carrier
10/04/2000CN1268850A Reproducing device and reproducing method
10/04/2000CN1268849A Reproducing device and reproducing method
10/04/2000CN1268747A Multiple section CD disc, and recording and/or reproducing device and method
10/04/2000CN1268745A CD disc and recording/reproducing equipment and method used for recording digital general disc
10/04/2000CN1268739A Method for executing modularization read and write operation, and device therefor
10/04/2000CN1268738A CD disc control device and CD disc device