Patents
Patents for G11B 20 - Signal processing not specific to the method of recording or reproducing; Circuits therefor (81,980)
12/1994
12/22/1994WO1994029854A1 Recording and reproducing device
12/22/1994WO1994029795A1 A method for providing parity in a raid sub-system using a non-volatile memory
12/22/1994WO1994029789A1 Apparatus and method for reproducing data from disc, method for recording data on disc, and disc
12/22/1994CA2160674A1 Apparatus and method for distorted track data recovery
12/21/1994EP0630108A2 A method of expanding the frequency range of a digital audio signal
12/21/1994EP0630022A2 Control of record media using control areas accessible only by a drive device
12/21/1994EP0630021A1 Audio signal recording apparatus with an index number signal generating function
12/21/1994EP0630018A2 Interblock gap detection in a data storage system
12/21/1994EP0630017A2 Detecting and validating formatted blocks on magnetic tape
12/21/1994EP0630016A2 A system and method for synchronisation character detection in a data storage system
12/21/1994EP0630004A2 Disc reproducing apparatus
12/21/1994EP0629999A2 Magnetic tape having plural spaced-apart servo areas interleaved with data track areas
12/21/1994EP0629307A1 Synchronization and automatic resynchronization of multiple incremental recorders
12/21/1994EP0484423B1 Digital signal processing system
12/21/1994CN1096619A Intensity-stereo encoding and decoding in a transmission system
12/21/1994CN1096618A Digital transmission system for transmitting an additional signal such as a surround signal
12/21/1994CN1096608A Audio system with language exercise function
12/21/1994CN1096607A Contact magnetic recording disk file with a magnet oresistive read sensor
12/20/1994US5375249 Eight-to-fourteen-modulation circuit for a digital audio disc system
12/20/1994US5375224 Raw data reader
12/20/1994US5375221 Stand-alone digital data storage control system including user control interface
12/20/1994US5375145 Multi-mode gain control loop for PRML class IV sampling data detection channel
12/20/1994US5375128 Fast updating of DASD arrays using selective shadow writing of parity and data blocks, tracks, or cylinders
12/20/1994US5375127 In a data storage system
12/20/1994US5375116 System for recording digital information in a pulse-length modulation format
12/20/1994US5375111 Optical information recording medium, and audio and video information recording method
12/20/1994US5375017 Apparatus for duplication of bit-pattern on recording medium
12/14/1994EP0629087A2 Recording/reproducing apparatus and reproducing apparatus
12/14/1994EP0629085A2 Digital high definition television receiver with features that facilitate trick-play modes on a digital vcr
12/14/1994EP0629054A2 Noise suppressing apparatus capable of preventing deterioration in high frequency signal characteristic after noise suppression and in balanced signal transmitting system
12/14/1994EP0629052A1 Method of and circuit for correcting errors
12/14/1994EP0628952A2 Optical disk, and information recording/reproduction apparatus
12/14/1994EP0628208A1 Data tape recording system having longitudinal address and servo tracks.
12/14/1994EP0628207A1 Longitudinal track format for data recording system.
12/14/1994EP0628206A1 Data recording system having logical overrecording capability
12/14/1994EP0628205A1 Volume format table for data recording system
12/14/1994EP0628203A1 Data recording system having demarking capability and method
12/14/1994EP0628202A1 Data recording system having improved automatic rewrite capability
12/14/1994EP0628201A1 Data recording system having unique nonrecording detection
12/14/1994EP0628200A1 Data recording system having improved longitudinal and helical search capability
12/14/1994EP0628199A1 Data recording system having recording partition groups
12/14/1994EP0628198A1 Data recording system having improved bookkeeping capability
12/14/1994EP0628197A1 Digital servo track format
12/14/1994EP0628196A1 Data recording system having unique end-of-recording and start-of-recording format indicators
12/14/1994CN1096392A Modulating method, demodulating method, modulating apparatus, and demodulating apparatus
12/14/1994CN1096389A Recording and reproducing appts.
12/13/1994US5373513 Shift correction code system for correcting additive errors and synchronization slips
12/13/1994US5373512 Memory controller with parity generator for an I/O control unit
12/13/1994US5373498 Disc-shaped record medium
12/13/1994US5373497 Compact disc with synchronizing header
12/13/1994US5373493 Apparatus for digitally recording reproducing and editing an audio signal
12/13/1994US5373490 System for recording digital information in a pulse-length modulation format
12/13/1994US5373485 Method for locating data in a data cartridge system
12/13/1994US5373401 Data storage system having multimodal interblock gap detection utilizing a predicted occurance time window
12/13/1994US5373400 Dynamic threshold updating circuit for a maximum likelihood detector using both positive and negative comparators
12/13/1994US5373399 Overload detection and storage of overload markers in an arrangement for recording an analog signal on a record carrier
12/13/1994US5373398 Video tape recorder with audio carrier absence detection
12/13/1994CA2020243C Optical information recording method and recording apparatus
12/09/1994CA2242186A1 Optical disk, and information recording/reproduction apparatus
12/08/1994WO1994028546A1 Method and device for correcting error in digital data
12/08/1994WO1994028543A1 Method for correcting errors in digital audio data
12/07/1994EP0627854A2 Digital video signal recording/reproducing apparatus
12/07/1994EP0627852A2 Digital video signal recording/reproducing apparatus
12/07/1994EP0627851A2 Recording digital audio and video signals
12/07/1994EP0627739A2 Recording/reproducing apparatus for disc-shaped recording medium
12/07/1994EP0627730A1 Error recovery data storage system and method
12/07/1994EP0627680A2 System and method for mapping directly accessible magnetic DASD storage to fixed block optical storage
12/07/1994EP0627114A1 Method of reading a recording medium and system using said method
12/07/1994EP0627113A1 Data recording medium, recorder, reader and recording method
12/07/1994EP0627112A1 Disk recording medium and reproduction method and apparatus thereof
12/07/1994EP0533789B1 Recorder for digital signals
12/07/1994EP0382154B1 Optical disc recording system
12/07/1994CN2184964Y Recorder for audiovisual tape code
12/06/1994US5371885 Method in a computer system
12/06/1994US5371882 Spare disk drive replacement scheduling system for a disk drive array data storage subsystem
12/06/1994US5371792 CD-ROM disk and security check method for the same
12/06/1994US5371771 Circuit for calculating DC value in digital recording and reproducing system
12/06/1994US5371745 Error correction apparatus for reproducing data multi-encoded with error correcting code
12/06/1994US5371722 Method for recording sector control information on magneto-optical disk
12/06/1994US5371634 Arrangement for obtaining prerecorded digital music cassettes
12/06/1994US5371604 Apparatus for edit recording of a compressed digital video signal on a recording tape
12/06/1994US5371603 Digital video signal reproducing apparatus
11/1994
11/30/1994EP0626789A2 Image encoding apparatus and recording medium
11/30/1994EP0626787A2 Videorecorder
11/30/1994EP0626770A2 Data multiplexers and demultiplexers
11/30/1994EP0626690A1 Digital audio disk player
11/30/1994EP0626689A2 Karaoke reproducing apparatus
11/30/1994EP0626688A2 Karaoke reproducing apparatus
11/30/1994EP0626686A2 Karaoke reproducing apparatus with printing facility
11/30/1994EP0626685A2 Digital signal processor for a disk drive
11/30/1994EP0626681A1 Optical recording/reproduction apparatus
11/30/1994EP0626676A1 Magnetic recording and reproducing apparatus
11/30/1994EP0626646A1 File management method for interchangeable storage media
11/30/1994EP0502029A4 Method and apparatus for synchronizing timing signals for helical scan recorder
11/30/1994CN1026830C Method for genermation of parity symbols and circuit design for carrying out this process
11/29/1994US5369758 Checking for proper locations of storage devices in a storage array
11/29/1994US5369667 Apparatus and method for automatically adjusting parameters of an automatic equalizer
11/29/1994US5369652 Error detection and correction having one data format recordable on record media using a diverse number of concurrently recorded tracks
11/29/1994US5369641 Method and apparatus for detecting and correcting errors in data on magnetic tape media
11/29/1994US5369535 Fixed block architecture disk file with improved position identification and error handling