Patents
Patents for G11B 20 - Signal processing not specific to the method of recording or reproducing; Circuits therefor (81,980)
10/2002
10/01/2002US6459850 Encoding device for encoding a program and recording device
10/01/2002US6459848 Magnetic recording apparatus and method, and magnetic recording medium
10/01/2002US6459738 Method and apparatus for bitstream decoding
10/01/2002US6459667 Optical disc recording and reproducing apparatus having automatic gate signal generation modes
10/01/2002US6459661 Optical disk and optical disk device
10/01/2002US6459540 Variable speed recording method and apparatus for a magnetic tape drive
10/01/2002US6459392 Technique for encoding a sequence of periodic byte values with vertical correlation
10/01/2002US6459315 Wave reforming circuit
09/2002
09/26/2002WO2002075742A1 Record carrier and apparatus for scanning the record carrier
09/26/2002WO2002075741A1 Data manager
09/26/2002WO2002075739A1 Data recorder
09/26/2002WO2002075737A1 Multiple-area-compatible disk reproducing device
09/26/2002WO2002075736A1 Record carrier and apparatus for scanning the record carrier
09/26/2002WO2002075735A1 Apparatus and method for digital content concealment
09/26/2002WO2002075733A1 Limited play data storage media and method for limiting access to data thereon
09/26/2002WO2002075730A1 Method and apparatus for recording address information on disc medium
09/26/2002WO2002075729A1 Address information recording device and recording method and reproducing device and reproducing method
09/26/2002WO2002075645A1 Optical data carrier
09/26/2002WO2002065448B1 Content supply system and information processing method
09/26/2002WO2002029790A3 Optical information medium, recording and reproduction apparatus, and recording and reproduction method
09/26/2002WO1997028630A8 System and method for interfacing multiple electronic devices
09/26/2002US20020138808 Data card with a full circular track for alignment and amplitude calibration
09/26/2002US20020138803 Method and apparatus for propagating error status over an ECC protected channel
09/26/2002US20020138794 Coding system and decoding system
09/26/2002US20020138781 File management method, program therefor, recording medium containing the program, and file management apparatus for performing the method
09/26/2002US20020138747 Restricted data access
09/26/2002US20020138734 Identifying material
09/26/2002US20020138733 Information transaction system
09/26/2002US20020138730 Apparatus and method for inserting and detecting watermark based on stochastic model
09/26/2002US20020138694 Magnetic disc drive, method for recording data, and method for reproducing data
09/26/2002US20020138165 System and method for recording and playing audio selections
09/26/2002US20020138161 Apparatus and method for generating RF signal and control signals in optical disc system
09/26/2002US20020136537 Information recording medium capable of defect management, information recording apparatus capable of defect management, and information playback apparatus for playing back information from defect-managed medium
09/26/2002US20020136536 Encoding apparatus and decoding apparatus for a digital video disc
09/26/2002US20020136535 Video signal transmission method, superimposed information transmission method, video signal output device, video signal reception device, and video signal recording medium
09/26/2002US20020136534 Digital video recording/playback system with entry point processing function
09/26/2002US20020136531 Audio and/or video generation apparatus and method of generating audio and/or video signals
09/26/2002US20020136430 Network linking method using information embedded in data objects that have inherent noise
09/26/2002US20020136429 Data hiding through arrangement of objects
09/26/2002US20020136411 Information processing system and method
09/26/2002US20020136404 Portable recordable media anti-theft system
09/26/2002US20020136338 Method of inserting sync data in modulated data and recording medium containing the sync data
09/26/2002US20020136137 Disk drive apparatus, and disk formatting method
09/26/2002US20020136126 Wobble detection circuit corresponding to a plurality of media having different pre-formats and optical disk apparatus having reduced size
09/26/2002US20020136125 Recording medium, Signal recording method and apparatus and signal reproducing apparatus
09/26/2002US20020136124 Anti-chipping recording disc, reading method and recording head
09/26/2002US20020136119 Record carrier of the optical type and a device for recording and/or playback for use with such a record carrier
09/26/2002US20020136118 Information recording medium having secret area, information recording apparatus capable of recording information in secret area, and information playback apparatus capable of playing back information from secret area
09/26/2002US20020136117 Data reproduction apparatus, data reproduction method, and data reproducing program recording medium
09/26/2002US20020136099 Device for storing and playing back information recorded on recording medium
09/26/2002US20020135921 Recording and reproducing apparatus
09/26/2002US20020135920 Method and apparatus for write compensation of perpendicular magnetic recording in disk drive
09/26/2002US20020135919 Composite magnetic head, magnetic disk drive using the head, and control method for the magnetic disk
09/26/2002US20020135916 Information write/read device and data read method
09/26/2002US20020135914 Magnetic medium precompensation method and apparatus
09/26/2002US20020135913 Measuring apparatus and measuring method for measuring performance characteristics of recording unit including circular recording medium
09/26/2002US20020135608 Recording apparatus and method, reproducing apparatus and method, recorded medium, and program
09/26/2002US20020135607 Information processing apparatus and method, program, and recorded medium
09/26/2002US20020135500 Digital data modulating method and apparatus and modulated data recording medium using the same
09/26/2002DE10113571A1 Transponder chip providing 2-way data communication with the read-write laser of available CD-RW drives, is for use in password protection and authentication, so that an additional security read- write device is not required
09/26/2002CA2776055A1 Data recorder
09/26/2002CA2775960A1 Data recorder
09/26/2002CA2775746A1 Data recorder
09/26/2002CA2775737A1 Data recorder
09/26/2002CA2775666A1 Data recorder
09/26/2002CA2775612A1 Data recorder
09/26/2002CA2690473A1 Data recorder
09/26/2002CA2690242A1 Data recorder
09/26/2002CA2690240A1 Data recorder
09/26/2002CA2441817A1 Apparatus and method for digital content concealment
09/26/2002CA2408493A1 Method and apparatus for recording address information on disc medium
09/26/2002CA2407564A1 Address information recording device and recording method and reproducing device and reproducing method
09/25/2002EP1244307A1 Method and system for secure data storage
09/25/2002EP1244306A2 Receiving controlled-access broadcast signals
09/25/2002EP1244305A2 Data recording method
09/25/2002EP1244220A2 Method for modulating digital data and apparatus therefor
09/25/2002EP1244108A2 Disc recording apparatus and disc
09/25/2002EP1244105A2 Apparatus for reproducing recorded data
09/25/2002EP1244099A2 Wobble detection circuit and optical disk apparatus
09/25/2002EP1244095A2 Optical disk, reproducing apparatus and recording apparatus
09/25/2002EP1244067A2 Hardened voyage data recorder
09/25/2002EP1243074A1 Phase detector for a phase-locked loop
09/25/2002EP1242994A2 Video-editing workflow methods and apparatus thereof
09/25/2002EP1242993A1 Subtitle management method for digital video disk
09/25/2002EP1242929A2 System, method and article of manufacture for the purchase and use of electronic content utilizing a laser-centric medium
09/25/2002EP1125294B1 Multi-level error detection and correction technique for data storage recording device
09/25/2002EP0766863B1 Method for reading information
09/25/2002CN1371174A Record method and device, transmission medium and device, playback method and device, and receiving device
09/25/2002CN1371081A Data disabling device to disable digital content recorded in record medium
09/24/2002US6457153 Storage device and storage subsystem for efficiently writing error correcting code
09/24/2002US6457128 Optical disk, an optical disk barcode forming method, an optical disk reproduction apparatus, a marking forming apparatus, a method of forming a laser marking on an optical disk, and a method of manufacturing an optical disk
09/24/2002US6457127 Method of and device for generating a key
09/24/2002US6457126 Storage device, an encrypting/decrypting device and method of accessing a non-volatile memory
09/24/2002US6457096 Redundant recording disk device and data processing method using plural logical disks with mirrored data stored with a predetermined phase-offset
09/24/2002US6456966 Apparatus and method for decoding audio signal coding in a DSR system having memory
09/24/2002US6456963 Block length decision based on tonality index
09/24/2002US6456783 Data structure of stream data, and recording and playback method thereof
09/24/2002US6456781 Recording and reproduction of a first signal with a first bit-rate and a second information signal with a second bit-rate larger than the first bit-rate
09/24/2002US6456780 Optical disc, optical disc recording apparatus, and optical disc recording method for facilitating dubbing, storage medium for storing optical disc recording program for facilitating dubbing, optical disc reproducing apparatus, and optical disc reproducing method
09/24/2002US6456726 Methods and apparatus for multi-layer data hiding