Patents
Patents for G11B 20 - Signal processing not specific to the method of recording or reproducing; Circuits therefor (81,980)
12/1999
12/22/1999CN1239293A Data recording reproduction method, its appts. and discriminating method and semiconductor chip
12/22/1999CN1239292A Recording medium for storing write protection information and write protection method thereof
12/22/1999CN1239289A Optical recording medium and method and apparatus of reproducing the same
12/22/1999CN1239288A Method of changing rotational rate of storage medium from initial rate to desired rate
12/22/1999CN1239287A Servo control system for information storage device
12/22/1999CN1239286A Focusing method and system for focus capture and focus control in optical disc system including detection of quad sum signal to close focus
12/22/1999CN1239285A Analog to digital converter and assembly for use in optical drive system and method therefore
12/21/1999US6006273 Method for interleaving data for seamless playback of multiple program versions having common material
12/21/1999US6006007 Optical disk apparatus for recording and reproducing compression encoded video signal
12/21/1999US6006006 Frame pulse generation apparatus for a video cassette recorder
12/21/1999US6006004 Information record medium, apparatus for recording the same and apparatus for reproducing the same
12/21/1999US6005950 Recorder to instrument amplifier interface apparatus and method
12/21/1999US6005940 System for securely storing and reading encrypted data on a data medium using a transponder
12/21/1999US6005839 Data transmitting method, data recording apparatus, data record medium and data reproducing apparatus
12/21/1999US6005837 Disc-shaped information carrier provided with two portions having different read-out speeds
12/21/1999US6005830 System for checking the recoding state of data on a magneto-optical disk
12/21/1999US6005739 Technique for controlling the position error signal of a disk drive
12/21/1999US6005732 Device and method for restoring data in digital VCR
12/21/1999US6005731 Channel quality circuit employing a test pattern generator in a sampled amplitude read channel for calibration
12/21/1999US6005730 Signal error generating circuit for an analog signal processing channel
12/21/1999US6005729 Analog signal processing circuit with integrated gain and timing error signal processing
12/21/1999US6005728 Disk recording medium for embodying high capacity hard disk drive
12/21/1999US6005726 Apparatus for compensating thermal asperity and DC undershoot in the data channel of a disk storage system
12/21/1999US6005725 Variable zone layout and track pitch parameter considerations for information storage disk drive
12/21/1999US6005507 Data decoding apparatus
12/21/1999CA2175363C System and method for controlling play of multiple versions of same motion picture stored on optical disk
12/21/1999CA2120739C Buffering method and system for resonant scanner
12/16/1999WO1999065241A1 System and methodology for tracing to a source of unauthorized copying of prerecorded proprietary material, such as movies
12/16/1999WO1999065033A1 Recorded medium, reproducing apparatus, recording apparatus, and reproducing method and recording method
12/16/1999WO1999065027A2 Recording and reproduction of an information signal in/from a track on a record carrier
12/16/1999WO1999065026A2 Transferring compressed audio via a playback buffer
12/16/1999WO1999065025A1 Method and apparatus for enabling/disabling drive features
12/16/1999WO1999065019A2 Parallel coded spread spectrum communication for data storage
12/16/1999WO1999064943A2 Method of optimizing the topology of the ieee 1394 serial bus
12/16/1999DE19926727A1 Optical-disc recording device e.g. CD-RW drive
12/16/1999DE19826389A1 Signalkomprimierer für Audiogerät Signal compressor for audio equipment
12/15/1999EP0964512A2 Signal compression for audio device
12/15/1999EP0964399A2 Recording defect substitution method, and a recording and reproducing apparatus for a disc-shaped recording medium
12/15/1999EP0964398A2 Recording defect substitution method, and a recording and reproducing apparatus for a disc-shaped redording medium
12/15/1999EP0964397A2 Digital information recording-reproducing apparatus
12/15/1999EP0939956A4 Writing and reading high density magnetic tapes
12/15/1999EP0756744B1 Arrangement for reproducing n digital signals from n adjacent tracks on a record carrier
12/15/1999EP0746848A4 Synchronous read channel
12/15/1999EP0682341B1 Electronic apparatus using information memory medium
12/15/1999CN1238602A Information storage method using colour codes
12/15/1999CN1238523A Hi-Fi audio signal recording/playback apparatus using video heads
12/15/1999CN1238522A Replay device for digital image signal or audio signal and replay method
12/15/1999CN1238517A Recording medium, reproduction apparatus, and reproduction method
12/15/1999CN1238515A Data recording and reproducing apparatus and method
12/14/1999USRE36448 Memory controller with parity generator for an I/O control unit
12/14/1999US6003153 Maximum likelihood detection method and information recording and reproducing apparatus
12/14/1999US6003051 Magnetic storage device and filter adjusting method applied to the same
12/14/1999US6002836 Recording and reproducing apparatus in which digital data having various transmission rates are processed at their optimum data rates
12/14/1999US6002834 Optical disk having table relating sector address and time and optical disk reproducing apparatus
12/14/1999US6002832 Apparatus and method for recording and reproducing data
12/14/1999US6002830 Method and apparatus for removing or defeating effects of copy protection signals from a video signal
12/14/1999US6002730 Method for detecting data and device therefor of data storing unit
12/14/1999US6002718 Method and apparatus for generating runlength-limited coding with DC control
12/14/1999US6002538 PRML regenerating apparatus having adjusted slice levels
12/14/1999US6002536 Digital transmission signal processing system and recording/reproducing system
12/14/1999CA2184247C Picture information encoding/decoding system
12/14/1999CA2026194C Digital information signal reproducing apparatus for reproducing digital audio signal at the reproducing speed different from the recording speed
12/14/1999CA2024344C Digital data transmission system having error detecting and correcting function
12/14/1999CA2016793C Fm demodulator
12/09/1999WO1999063671A1 Apparatus and method for modulation/demodulation with consecutive minimum runlength limitation
12/09/1999WO1999063540A1 Data processor and data processing method
12/09/1999WO1999063539A1 Efficient linearization of saturation channels
12/09/1999WO1999063538A1 Apparatus and method for copy protection for recordable digital media
12/09/1999WO1999063530A1 A magneto-optical recording system employing linear recording and playback channels
12/09/1999WO1999063526A2 Opcode-driven buffer manager for use in data storage devices
12/09/1999WO1999063429A1 Security device, key device, and program protection system and method
12/09/1999WO1999063424A1 System and method for implementing open and closed file systems on a storage medium
12/09/1999WO1999048096A3 Recording/reproduction and/or editing of real time information on/from a disc like record carrier
12/09/1999WO1999048094A3 Recording/reproduction and/or editing of real time information on/from a disc like record carrier
12/09/1999DE19922253A1 Coding system for redundant data
12/09/1999CA2680404A1 Apparatus and method for modulation/demodulation with consecutive minimum runlength limitation
12/09/1999CA2273759A1 Copy generation management method, information signal reproducing method, information signal reproducing apparatus, and information signal recording apparatus
12/09/1999CA2273758A1 Information signal reproducing apparatus, information signal outputting apparatus, information signal reproducing method, and information signal outputting method
12/08/1999EP0963075A2 Clock signal producing device
12/08/1999EP0963052A2 Device for influencing audio signals in a motor vehicle
12/08/1999EP0962932A2 Using the applied peak area ratio to determine signal pw50 and head fly height
12/08/1999EP0962931A1 Audio data and still picture recording medium and corresponding playback apparatus which enable displaying of a still picture at a plurality of predetermined timings during playback of recorded audio data
12/08/1999EP0962930A1 Apparatus for and method of adding information onto recording medium that enables additional recording
12/08/1999EP0962929A2 Recording medium, recording apparatus and reproduction apparatus for selecting reproduction order of only specific digital data
12/08/1999EP0962866A1 File storage method, data storage apparatus, storage media management method, file management method, method of writing received data in storage media, and program storage media
12/08/1999EP0962865A1 File processing method, data processing device, and storage medium
12/08/1999EP0962094A2 Embedding supplemental data in an encoded signal
12/08/1999EP0962056A1 Circuit including a discrete time oscillator
12/08/1999EP0962017A1 Method and apparatus for maximum likelihood detection
12/08/1999CN1238075A Error detection scheme for ARQ systems
12/08/1999CN1237765A Recording medium, recording apparatus and reproduction apparatus
12/08/1999CN1237762A Information reproducing and recording apparatus and method
12/08/1999CN1237758A Information record medium and apparatus for reproducing the same
12/08/1999CN1237757A Coding, decoding device for gramophone disc and audio frequency signal, and transmission method and recording medium
12/07/1999US6000052 Signal conditioning system for controlling data retrieval channel characteristics in which errors in samples are segregated by association with intended sample values to control selected characteristics
12/07/1999US6000039 Data reconstruction method and system wherein timing of data reconstruction is controlled in accordance with conditions when a failure occurs
12/07/1999US6000023 Method for partitioning storage regions on hard disk and computer system adapted to the same
12/07/1999US6000021 Apparatus and method for extending the useful life of a data storage system
12/07/1999US6000009 Method and apparatus for allocation of disk memory space for compressed data records
12/07/1999US5999906 Sample accurate audio state update