Patents
Patents for G11B 20 - Signal processing not specific to the method of recording or reproducing; Circuits therefor (81,980)
05/2000
05/24/2000EP1003324A2 Forgery-resistant documents with images conveying secret data and related methods
05/24/2000EP1003175A1 Recording and reproducing apparatus
05/24/2000EP1003173A1 Recorded medium, reproducing apparatus, recording apparatus, and reproducing method and recording method
05/24/2000EP1003170A1 Data detecting apparatus using sample interpolation and method therefor
05/24/2000EP1003169A1 Disk apparatus, video/audio data processor, and video/audio control method
05/24/2000EP1003168A2 Apparatus for correcting asymmetry of reproduction signals
05/24/2000EP1003167A2 Additional information superposing method, information signal copy control method, information signal output device and information signal recording device
05/24/2000EP1003166A2 Information data recording/reproducing apparatus and information data processing system
05/24/2000EP1003162A1 An optical disk and an optical disk reproduction apparatus
05/24/2000EP1003155A1 Apparatus and method for reducing thermal interference in MR heads in disk drives
05/24/2000EP1003115A2 Audio/video from internet direct to compact disc through web browser
05/24/2000EP0922251B1 Storage system
05/24/2000EP0912920B1 System for secure data storage on cd-rom
05/24/2000EP0696396B1 A multiple phase-lock-loop clock recovery circuit
05/24/2000EP0663085B1 Method and apparatus for reduced-complexity viterbi-type sequence detectors
05/24/2000EP0627113B1 Data recording medium, recorder, reader and recording method
05/24/2000CN2379878Y Computerized music player
05/24/2000CN1254162A Information recording medium, dynamic image voice recording regenerating equipment and dynamic image voice recording and regenerating method
05/24/2000CN1254161A Mutli-channel voice frequency reproduction equipment
05/24/2000CN1254160A Electronic equipment with recording and playback function
05/24/2000CN1254157A Data detection device using sample interpolation and its method
05/24/2000CN1254150A Method for controlling digital data and its device
05/23/2000US6067481 Virtual magnetic tape drive library system
05/23/2000US6067400 Multimedia optical disc having improved interactive reproduction procedure, a reproduction apparatus and a method for such a disc
05/23/2000US6067335 Read channel IC for dual PLL solution
05/23/2000US6067284 Recording power adjustment for optical storage apparatus
05/23/2000US6067282 Information recording medium, apparatus for recording the same and apparatus for recording the same
05/23/2000US6067281 Rewritable disc and device for recording data in the same disc
05/23/2000US6067280 Track zero cross signal generation apparatus for optical disk system
05/23/2000US6067199 Method and apparatus for increasing disc drive performance
05/23/2000US6067198 Apparatus and method for processing a data signal from a magnetic-media reading head
05/23/2000CA2200538C Data arranging method and medium for data recording or transfer, and signal processing apparatus for the method and medium
05/23/2000CA2081742C Apparatus and method for recording random data on a digital video recorder
05/20/2000CA2289399A1 Additional information superposing method, information signal copy control method, information signal output device and information signal recording device
05/18/2000WO2000028544A1 Signal processing on information files so as to obtain characteristic point information sequences
05/18/2000WO2000028542A1 Cd-rom recording process impeding copyingd-roms
05/18/2000WO2000028540A1 Apparatus for developing a dynamic servo signal from data in a magnetic disc drive and method
05/18/2000WO2000028539A1 Data conversion apparatus and method in copyright protecting system
05/18/2000WO2000028535A1 Method and device for finding conditions on recording pulse of optical disk
05/18/2000WO2000028406A2 Mixed-signal single-chip integrated system electronics for magnetic hard disk drives
05/18/2000WO1996039697A8 Error correction via programmable bias current for mr recording heads
05/17/2000EP1001635A2 Data recording apparatus and method
05/17/2000EP1001634A2 Video signal processing, recording format discriminating, and signal reproducing
05/17/2000EP1001629A2 Receiving apparatus
05/17/2000EP1001626A2 Video data recording and reproducing apparatus
05/17/2000EP1001625A2 Method and apparatus for controlling digital data
05/17/2000EP1001624A2 Copy generation management
05/17/2000EP1001549A2 Audio signal processing apparatus
05/17/2000EP1001425A2 Playback equipment
05/17/2000EP1001424A2 Digital information editing system
05/17/2000EP1001421A2 Multi-channel audio reproducing device
05/17/2000EP1001420A1 Method and apparatus for data reception
05/17/2000EP1001419A1 Data conversion apparatus and method in copyright protecting system
05/17/2000EP1001409A2 Disc recording medium, recording apparatus and playback apparatus
05/17/2000EP1001361A2 Magnetic code reading device and method
05/17/2000EP1001342A2 Storage apparatus and control method thereof
05/17/2000EP1000467A1 Apparatus and method for modulation /demodulation with consecutive minimum runlength limitation
05/17/2000EP0781472B1 Multipurpose error correction calculation circuit
05/17/2000EP0757343B1 Optical disk and optical disk recording and reproducing device
05/17/2000EP0729630B1 Record carrier, recording device and reading device
05/17/2000CN1253674A Method for encoding multiword information by word wise interleaving and wordwise error protection, which error locative clues obtained by high protectivity clue words
05/17/2000CN1253653A Copy protectable optical media device and method therefor
05/17/2000CN1253435A Missed pulse detector using synchronous detection
05/16/2000US6065094 Inexpensive compressed data storage apparatus with improved resistance to vibrations
05/16/2000US6064947 Time base generator internal voltage-controlled oscillator calibration system and method
05/16/2000US6064796 Method and an apparatus for encoding video data for seamless connection using flags to indicate top or bottom of field and whether a field is presented plural times
05/16/2000US6064698 Method and apparatus for coding
05/16/2000US6064643 Optical recording disk having land and groove continuously alternated in spiral tracks
05/16/2000US6064639 High speed data recording and/or reproducing method and apparatus with increased data sector access speed
05/16/2000US6064587 System and method for writing/reading data
05/16/2000US6064537 Disk drive with fault detector for erase heads
05/16/2000US6064536 Apparatus for recording data, apparatus for reproducing data, and method of reproducing data
05/16/2000US6064534 Method and apparatus for varying write currents supplied to recording heads based on temperature changes in an information storing device
05/16/2000US6064271 Voltage controlled oscillator circuit and disc reproducing apparatus
05/11/2000WO2000027108A1 Storage system
05/11/2000WO2000026912A1 Optical disk, method of reproducing and copying optical disk, and method of preventing illegal use of optical disk
05/11/2000WO2000026911A1 Data transmitting/receiving device and method
05/11/2000WO2000026910A1 Recording / reproducing apparatus, program recorded medium, recorded medium, cache device, and transmitter
05/11/2000WO2000026909A1 Method for irreversibly write-securing a magnetic storage cartridge
05/11/2000WO2000026908A1 Embedding supplemental data in an information signal
05/11/2000WO2000026748A1 System and method for protecting and securing a media verifier
05/11/2000CA2316996A1 Embedding supplemental data in an information signal
05/11/2000CA2288585A1 Copy generation management method, information signal recording apparatus, information signal outputting apparatus, and information signal reproducing apparatus
05/10/2000EP0999646A2 Apparatus for transmitting and reproducing a digital audio signal
05/10/2000EP0999552A2 Information recording medium and reproducing apparatus
05/10/2000EP0999551A1 Data processing apparatus and data recording apparatus
05/10/2000EP0999550A2 Digital signal processing apparatus, digital signal processing method, digital signal recording apparatus, digital signal reproducing apparatus, and digital video-audio signal recording and reproducing apparatus
05/10/2000EP0999549A2 MP3 car player
05/10/2000EP0999548A1 Technique for transmitting additional information on an information signal
05/10/2000EP0998791A1 Concurrent row/column syndrome generator for a product code
05/10/2000EP0998744A1 A model and command set for an av/c-based disc media player/recorder subunit
05/10/2000EP0840927B1 Compact disc changer utilizing disc database
05/10/2000EP0781470B1 Versatile error correction system
05/10/2000EP0740831B1 Disc-like record carrier, recording and/or reading apparatus for recording/reading information in the record carrier
05/10/2000EP0676079B1 Waveform shaping method and apparatus for optical recording
05/10/2000CN2377655Y Automatic playback and lighting device
05/10/2000CN1252914A Embedding supplemental data in an encoded signal
05/10/2000CN1252906A Device for encoding/decoding n-bit source words into corresponding m-bit channel words, and vice versa
05/10/2000CN1252881A Optical record carrier and scanning device
05/10/2000CN1252601A Apparatus and method for recording speed control of optic recording medium recording/reproducing system