Patents
Sitemap › G11 - Information storage › G11B - Information storage based on relative movement between record carrier and transducer › G11B 20 - Signal processing not specific to the method of recording or reproducing; Circuits therefor
Patents for G11B 20 - Signal processing not specific to the method of recording or reproducing; Circuits therefor (81,980)
04/2000
04/27/2000WO2000023993A1 Copy method avoiding bit-to-bit duplication of digital data and reading device for implementing same
04/27/2000WO2000023992A2 Variable speed recording method and apparatus for a magnetic tape drive
04/27/2000WO2000023990A1 Optical information recording medium, and method and apparatus for recording and reproduction
04/27/2000WO2000000974A3 Recording device having detection means for the detection of additional information in reception data
04/27/2000WO2000000973A3 Recording and reproducing device for multiple-speed reproduction
04/27/2000WO1999063539A8 Efficient linearization of saturation channels
04/26/2000EP0996128A2 Method and apparatus for recording and reproducing information
04/26/2000EP0996126A1 Tape drive data buffering
04/26/2000EP0996116A1 Information recording method, information reproducing method, recording medium used by the method, information recording device, and information reproducing device
04/26/2000EP0996074A1 Apparatus for data distribution, and terminal for data distribution
04/26/2000EP0995192A1 Copy protection system and method for optical disks and a copy protected optical disk
04/26/2000CN1251682A Method and device for storing audio-centered information by table-of-contents (TOC) and also by file-based access mechanism through root directory that contains highest level TOC
04/26/2000CN1251680A System of sharing objects having plurality of contents
04/26/2000CN1251461A Digital recording/reproducing method and apparatus for video having superposed subinformation
04/26/2000CN1251460A Device for detecting and recovering physical identification
04/25/2000USRE36671 Dual channel readback recovery system
04/25/2000US6055664 Encoding device and decoding device suitable for dubbing
04/25/2000US6055604 Forced transaction log posting using a least busy storage media without maintaining redundancy of the transaction log
04/25/2000US6055358 Apparatus for recording and reproducing video and audio signals in either analog or digital form
04/25/2000US6055339 Video data compression
04/25/2000US6055216 Optical disk player capable of playing back both CD-ROM and CD-DA
04/25/2000US6055119 Adaptive signal processing method and circuit for a digital recording/reproducing apparatus
04/25/2000US6055118 Holding automatic gain control levels during read error recovery in a disc drive
04/25/2000US6055021 System and method for obtaining synchronization to a digital frame
04/25/2000US6054944 Data transmission method and device using 8-10 bit conversion and successive plus and minus running disparity synchronous data words
04/25/2000CA2220859C Automatic image quality-controlling device
04/25/2000CA2178359C Apparatus and method for scheduling and rescheduling incoming requests
04/25/2000CA2005273C Pause control for recording/playback apparatus
04/20/2000WO2000022819A1 Recording device for recording a digital information signal on a record carrier
04/20/2000WO2000022777A1 Method and device for protecting digital data by double re-encryption
04/20/2000WO2000022621A1 Data transmission apparatus, data transmission method, and data recording medium
04/20/2000WO2000022620A1 Apparatus for processing a reproduced digital signal
04/20/2000WO2000022615A1 Disc-shaped recording support
04/20/2000DE19948038A1 Device for playing back a waveform applies a phase vocoder for smooth compression and expansion of a sound signal without thinning out or repeating a sound signal's specified segments enabling compression of variable sound signals.
04/20/2000CA2347480A1 Method and device for protecting digital data by double re-encryption
04/19/2000EP0994621A2 Signal conversion apparatus and method
04/19/2000EP0994482A2 Image processing apparatus and method for high-speed image playback
04/19/2000EP0994481A2 Reproduction apparatus and method, recording apparatus and method
04/19/2000EP0994477A1 Disk drive capable of rereading same signal from disk in case of error in read signal
04/19/2000EP0994476A1 Magnetic disk apparatus with lower probability of occurrence of read errors due to scratch or the like on magnetic disk surface
04/19/2000EP0994475A1 Digital content protection system
04/19/2000EP0994410A2 Device for rewriting control information in a disk drive
04/19/2000EP0993700A2 A method, device and carrier for encoding multiword information
04/19/2000EP0886855B1 A method for recording and playing back information on magnetic strips and related reading/recording apparatus
04/19/2000EP0663117B1 Timing recovery circuit for synchronous waveform sampling
04/19/2000CN1251198A Optical disc recording/reproducing method, optical disc, and optical disc device
04/19/2000CN1251196A Recording and reproduction of a first signal with first bitrate and a second information signal with a second bitrate larger than the first bitrate
04/19/2000CN1250935A Reproducing device, recording device, and methods for reproducing and recording
04/19/2000CN1250933A Reproducing method and reproducing device
04/19/2000CN1250929A CD device of assembly for preventing native system reference clock signal from being confused
04/18/2000US6052815 ECC system for generating a CRC syndrome over randomized data in a computer storage device
04/18/2000US6052804 Data transfer optimization through sector evaluation and reallocation during a disc drive idle mode
04/18/2000US6052465 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
04/18/2000US6052350 Digital signal reproduction circuit and digital signal reproduction method
04/18/2000US6052349 Waveform equalizer and memory device having a waveform equalizer
04/18/2000US6052348 System and method for write location defect compensation in computer storage media
04/18/2000US6052252 Adaptive feed forward device for reducing current control errors
04/18/2000US6052250 Disk drive with separately determined servo and data track pitch
04/18/2000US6052249 Method and apparatus for data storage using thermal proximity imaging
04/18/2000US6052248 Parity channel code for enhancing the operation of a remod/demod sequence detector in a d=1 sampled amplitude read channel
04/18/2000US6052247 Apparatus for and method of recording information signals intermittently in a first portion of a record carrier and continuously in a second portion of the record carrier
04/18/2000US6052246 Method and apparatus for recording digital signals in the form of primary data plus auxiliary information
04/18/2000US6052245 Signal regenerating apparatus having asymmetrical signal detection circuit for detecting amplitude error and signal offset from a training signal and correcting same
04/18/2000US6052242 Recording apparatus with copy control based on copies made and allowed to be made
04/18/2000US6052241 Method and apparatus for minimizing erasure errors during information recording/reproducing
04/18/2000US6052077 Device for binary-coding a read signal from a magnetic tape
04/18/2000US6052001 Method and circuit for varying transconductance and variable bandwidth filter and variable gain amplifier using the same
04/18/2000US6051997 Circuit for tracking rapid changes in mid-point voltage of a data signal
04/18/2000CA2218657C Method for interleaving data for seamless playback of multiple program versions having common material
04/18/2000CA2120522C Head switching method for staggered servo and circuit thereof
04/16/2000CA2286251A1 Video signal recording and playback, rearranging dct coefficients across blocks from low to high frequency
04/13/2000WO2000021199A1 Lossless compression encoding method and device, and lossless compression decoding method and device
04/13/2000WO2000021198A1 Generation of a runlength limited digital information signal
04/13/2000WO2000021089A1 Data processor and data recorded medium
04/13/2000WO2000021088A1 Data recording/reproducing device
04/13/2000WO2000021087A2 Device and method for recording, reproducing and processing data
04/13/2000WO2000021086A1 Method and apparatus for determining the provenance of a data carrying disc
04/13/2000WO2000021085A1 System for copy protection of recorded information
04/13/2000WO2000020948A1 Copy protection system and method
04/13/2000WO2000020947A1 Method for operating a computer with copy protection for user programs
04/13/2000WO2000000982A3 Flexible management of multiple file systems
04/13/2000WO2000000971A3 Adaptive and selective level conditioning of a read channel in storage technologies
04/13/2000WO2000000970A3 Adaptive and selective cancellation of inter-symbol interference of a read channel in storage technologies
04/13/2000WO1999065027A3 Recording and reproduction of an information signal in/from a track on a record carrier
04/13/2000WO1999048095A3 Method and apparatus for simultaneously recording and reproducing real time information on/from a disc like record carrier
04/13/2000DE19948386A1 Reproduction apparatus, for signal processing digital audio signals composed of one-bit data, uses a signal processing unit coupled to a low-pass filter to process a signal, based on the characteristic selected
04/13/2000DE19846065A1 Verfahren zum Betreiben einer Datenverarbeitungsanlage mit Kopierschutz für Anwenderprogramme A method of operating a data processing system with copy protection for user programs
04/13/2000CA2312483A1 Data recording and reproduction apparatus
04/12/2000EP0992996A2 Reproduction apparatus and method
04/12/2000EP0992994A1 Optical disc recording/reproducing method, optical disc, and optical disc device
04/12/2000EP0992993A1 Audiovisual data recording / reproducing system
04/12/2000EP0992992A1 Device and method for data output and device and method for data input/output
04/12/2000EP0992986A2 An optical disk and an optical disk recording/reproduction device
04/12/2000EP0992985A2 An optical disk and an optical disk recording/reproduction device
04/12/2000EP0992037A2 Apparatus for reproducing information from a record carrier
04/12/2000EP0992036A2 Device for write compensation in magnetic-media recording
04/12/2000CN1250213A Method and equipment for recording and playbacking information on disc
04/12/2000CN1250211A Optical information recording method and unit
04/12/2000CN1250210A Optical information recording method and recording unit
04/11/2000US6049771 Voice recording and reproducing apparatus using multiple ADPCM compression modes
1 ... 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 ... 820