Patents
Patents for G11B 20 - Signal processing not specific to the method of recording or reproducing; Circuits therefor (81,980)
10/1993
10/13/1993EP0565367A2 Data recorder using still framing techniques for information retrieval and method
10/13/1993EP0565281A2 Information handling system incorporated with an information security measure
10/13/1993EP0565219A2 Image compression and decompression
10/13/1993EP0565162A2 Predictive read-write inhibit decision using fuzzy logic
10/13/1993EP0565092A1 CD-ROM disc reproducing apparatus
10/13/1993EP0564916A2 Compact disc analyzer system
10/13/1993EP0214235B1 Error detection and concealment using predicted signal values
10/12/1993US5253257 Recording error detector circuit and recording reproducing apparatus
10/12/1993US5253244 System for recording digital information in a pulse-length modulation format
10/12/1993US5253243 Recording and reproducing timing generating apparatus
10/12/1993US5253131 Servo pattern for location and positioning of information on a disk drive
10/12/1993US5253126 Raw error monitoring and reporting
10/12/1993US5253125 Method and apparatus for data fill in failing read channel in parallel transfer drives
10/12/1993US5253124 Apparatus for forming recording tracks on disks with different track-number formats
10/12/1993US5253123 Apparatus for digitally recording time-multiplexed digital information and pilot signals with different recording current levels
10/12/1993US5253122 Recording of digital video signals on a magnetic medium having a particular energy product and surface roughness
10/12/1993US5253120 Recording/reproducing apparatus for more efficient recording and reproduction of audio and video signals
10/12/1993US5253076 Video signal recording-reproduction device
10/12/1993CA1323099C Synchronous, multiple channel analogue and audio-visual record and playback unit
10/06/1993EP0564283A2 Miller-squared decoder with erasure flag output
10/06/1993EP0564269A2 Apparatus for the recording of digital video signals
10/06/1993EP0564187A2 Recording and reproducing apparatus
10/06/1993EP0564089A1 A method and appartus for the perceptual coding of audio signals
10/06/1993EP0563922A2 Data processing circuit for disc player
10/06/1993EP0532514A4 Failure-tolerant mass storage system
10/06/1993CN1077076A Apparatus for recording and reproducing picture signal
10/06/1993CN1022354C Ditital multichannel recording method and equipment
10/06/1993CN1022353C Magneto-optical recording apparatus and energizing circuit
10/05/1993US5251077 Method of reading digital data on magnetic tape
10/05/1993US5251076 Recording apparatus for electrocardiographs
10/05/1993US5251075 Cue signal detecting apparatus
09/1993
09/30/1993WO1993019545A1 Digital audio data muting system and method
09/30/1993WO1993019467A1 Detecting scene changes
09/30/1993WO1993019466A2 Computer disk drive integrated data path circuit optimized for handling both data and servo signals
09/30/1993WO1993019418A1 Method and apparatus for reduced-complexity viterbi-type sequence detectors
09/29/1993EP0562758A2 Position identification and error handling in data recording disk file
09/29/1993EP0562563A2 Multi-track embedded servo recording format and method
09/29/1993EP0146639B1 Method and apparatus for recording digital data signal
09/29/1993CN1076804A System zones for non beginning of tape operations
09/29/1993CN1076803A Volume format information
09/29/1993CN1076795A Transparent file mark
09/29/1993CN1076794A Tape volume partitioning
09/28/1993US5249289 System and method for rebuilding edited digital audio files
09/28/1993US5249288 Process for accommodating bad disk pages in an electronic printing system
09/28/1993US5249172 Write laser power setting responsive to a series of written test signals having two frequency components
09/28/1993US5249170 Memory disk and apparatus for recording information on memory disk
09/28/1993US5249169 Apparatus for reproducing information
09/28/1993US5249085 Recording system using multiplexed inputs to a multichannel recorder
09/28/1993US5249063 Information signal processing device for offset removal and signal identification of color difference signals
09/28/1993CA1322601C Circuit for encoding and formatting data for rotating head recorders
09/28/1993CA1322594C Digital signal reproduction apparatus
09/28/1993CA1322593C System for transferring information using an information carrier
09/24/1993CA2070969A1 Multi-track embedded servo recording format and method
09/23/1993DE4308352A1 Multiple magnetic disc with heads coupled to processor for optimum signal form - has filters controlled using values of optimum parameters obtd. in initial disc processing that are stored and read during operation
09/22/1993EP0561648A1 Waveform shaping circuit suitably arranged for optically recording and reproducing apparatus
09/22/1993EP0561454A2 Method and apparatus for editing an audio signal
09/22/1993EP0561435A2 Information transfer system, a transmitter, a receiver and a record carrier for use in the system
09/22/1993EP0561281A1 Recording and/or reproducing apparatus with means for establishing an after-recording area
09/22/1993EP0560945A1 Adaptive decision feedback equalizer apparatus for processing information stored on digital storage media
09/22/1993CN1076568A Information transfer system a transmitter, a receiver and a record carrier for use in the system
09/21/1993US5247646 Compressed data optical disk storage system
09/21/1993US5247638 Apparatus for compressing data in a dynamically mapped virtual data storage subsystem
09/21/1993US5247633 Configuration of high capacity disk drives with embedded ibm pc-at type computer
09/21/1993US5247509 Disk storage which automatically adjusts to optimum recording/reproducing level
09/21/1993US5247505 Information recording method for reciprocally recording and verifying information
09/21/1993US5247494 Method for recording and reproducing information on and from an optical disk having a read-only recorded zone and a writable and readable zone using a spot laser light
09/21/1993US5247405 Video tape recorder having two video decks on a single chassis for transducing with a single tape
09/21/1993US5247403 Apparatus and method for reproducing data of a recording medium
09/21/1993US5247401 Replay equalization circuit in digital image recorder
09/21/1993US5247400 Tape reproducing direction detecting apparatus for a digital VTR
09/21/1993US5247399 Digital video recording and playback apparatus using different read and write operations for each individual memory
09/21/1993US5247396 PCM signal recording method and apparatus for recording four-channel data to be compatible with two-channel data
09/21/1993US5247300 Automatic audio/video signal combination apparatus
09/21/1993US5247254 Data recording system incorporating flaw detection circuitry
09/21/1993US5247126 Image reproducing apparatus, image information recording medium, and musical accompaniment playing apparatus
09/21/1993CA1322409C Disk drive memory
09/21/1993CA1322406C Apparatus for reproducing a digital signal
09/21/1993CA1322405C Method and apparatus for recording and/or reproducing digital data
09/21/1993CA1322404C Magnetic disk write precompensation
09/21/1993CA1322403C Digital signal recording apparatus
09/21/1993CA1322402C Magnetic recording and/or reproducing apparatus
09/16/1993WO1993018514A1 Method and device for recording-reading information on a moving optical or magneto-optical medium
09/16/1993WO1993018508A1 Synchronization and automatic resynchronization of multiple incremental recorders
09/16/1993WO1993018456A1 Multiple controller sharing in a redundant storage array
09/16/1993WO1993018455A1 Improved storage unit generation of redundancy information in a redundant storage array system
09/16/1993WO1993018414A1 Data recording system incorporating flaw detection circuitry
09/16/1993CA2129632A1 Synchronization and automatic resynchronization of multiple incremental recorders
09/15/1993EP0560529A2 Disk drive system
09/15/1993EP0560413A2 Adaptive bit allocation for audio encoder and decoder
09/15/1993EP0560339A1 Modulating method and demodulating method as well as modulating apparatus and demodulating apparatus
09/15/1993EP0560298A2 Micro miniature hard disk drive
09/15/1993EP0560282A2 Servo system for providing increased recording density and improved operation of the AGC circuitry
09/15/1993EP0560250A2 Method and apparatus for serially putting out the bits of recreated synchronization data or the like
09/15/1993EP0559975A1 Data storage apparatus
09/15/1993EP0559974A1 Data storage apparatus
09/15/1993EP0559763A1 Method and apparatus for disabling anti-copy protection system in video signals
09/15/1993EP0559732A1 Digital data converter.
09/15/1993EP0282036B1 Apparatus for recording data into optical recording medium
09/15/1993CN1076322A Picture search control apparatus in a digital video tape recorder
09/15/1993CN1076298A Architecture for multiple disk file assemblies on a common base