Patents
Patents for G11B 20 - Signal processing not specific to the method of recording or reproducing; Circuits therefor (81,980)
08/2002
08/20/2002US6438317 Encoded stream generating apparatus and method, data transmission system and method, and editing system and method
08/20/2002US6438315 Data input method, encoding apparatus, and data processing apparatus
08/20/2002US6438314 Recording and reproducing device and method of reproducing video information on variable-velocity basis
08/20/2002US6438236 Audio signal identification using digital labelling signals
08/20/2002US6438235 Media content protection utilizing public key cryptography
08/20/2002US6438232 Method of securing the playback of a DVD-ROM via triggering data sent via a cable network
08/20/2002US6438172 Transmitting and recording method, reproducing method, and reproducing apparatus of information and its recording medium
08/20/2002US6438097 Optical recording disc capable of preventing illegal copy
08/20/2002US6438096 Optical disk and a recording/reproduction apparatus using multiple address block groups shifted oppositely with multiple address blocks and clock synchronization
08/20/2002US6438084 Data recording apparatus and method, data playback apparatus and method, and optical disc
08/20/2002US6438083 Apparatus for recording a continuous information stream in available gaps between pre-recorded portions of a recording track, record carrier so recorded, and apparatus for reading such record carrier
08/20/2002US6438082 Information reproduction apparatus, information recording apparatus, and reference mark detection circuit
08/20/2002US6438081 Storage media reading system
08/20/2002US6438079 Optical disk, optical disk drive apparatus, and optical disk tracking method
08/20/2002US6437935 Method and apparatus for a real and positional optimization of a storage disk data zone
08/20/2002US6437933 Recording medium for protecting copyrighted data
08/20/2002US6437932 Decision based time-varying equalizers
08/20/2002US6437931 Storage device for reliably maintaining data in a reproducible state for a long period of time
08/20/2002US6437723 Signal processing circuit and semiconductor integrated circuit converting AC signal using two voltage reference values
08/20/2002US6437228 Method and apparatus for storing audio data
08/20/2002CA2098551C Methods and systems for dubbing a digital video signal on a record medium
08/15/2002WO2002063818A1 Error correcting/decoding method
08/15/2002WO2002063626A2 Recording apparatus and method, playback apparatus and method, recording medium, program, and computer-readable recording medium
08/15/2002WO2002063622A1 Modulation signal generator for producing original disc of optical disc
08/15/2002WO2002063615A1 Information recording medium
08/15/2002WO2002063444A1 Method and device for generating a synchronisation variable and the corresponding integrated circuit and digital disc drive
08/15/2002WO2002032127A3 System and method for fast playback of video with selected audio
08/15/2002WO2001067767A3 Method and system for transmitting digital audio and/or video files
08/15/2002US20020112226 Menu authoring system and methd for automatically performing low-level dvd configuration functions and thereby ease an author's job
08/15/2002US20020112204 Disk drive data protection using clusters containing error detection sectors
08/15/2002US20020112171 Systems and methods for secure transaction management and electronic rights protection
08/15/2002US20020111993 System and method for detecting and verifying digitized content over a computer network
08/15/2002US20020111957 Recording and/or reproduction apparatus, file management method and providing medium
08/15/2002US20020111776 Mark length selection apparatus, mark length selection method, maximum mark length detection apparatus, and maximum mark length detection method
08/15/2002US20020110370 Recording and playback apparatus and method, program storage medium, and program
08/15/2002US20020110366 Method and apparatus for compensating reproduced audio signals of an optical disc
08/15/2002US20020110365 Information recording medium, method for recording information, and method for reproduction information
08/15/2002US20020110364 Information storage system capable of recording and playing back a plurality of still pictures
08/15/2002US20020110363 Information storage system capable of recording and playing back a plurality of still pictures
08/15/2002US20020110362 Information storage system capable of recording and playing back a plurality of still pictures
08/15/2002US20020110359 Recording apparatus and reproduction apparatus
08/15/2002US20020110356 Audio signal processing method, audio signal processing apparatus, Hi-Fi video apparatus, digital video apparatus and 8 mm video apparatus
08/15/2002US20020110355 Image data recording apparatus
08/15/2002US20020110353 Optimizing use of storage space in a video data recording system
08/15/2002US20020110260 Identification data insertion and detection system for digital data
08/15/2002US20020110259 Digital watermark embedding method, digital watermark embedding apparatus and recording medium having a digital watermark
08/15/2002US20020110251 Audio signal processing apparatus
08/15/2002US20020110192 Picture compression apparatus and picture compression method
08/15/2002US20020110071 Recording method, recording apparatus, transmitting apparatus, reproducing method, reproducing apparatus, receiving apparatus, recording medium, and transmission medium
08/15/2002US20020110070 High speed data recording and/or reproducing method and apparatus with increased sector access speed
08/15/2002US20020110069 Initialization method for phase change type optical disc
08/15/2002US20020110067 Information recording medium, reproducing apparatus thereof and recording apparatus thereof
08/15/2002US20020110063 Optical information recording medium, method of manufacturing the optical information recording medium, and method of and apparatus for recording/reproducing optical information
08/15/2002US20020110062 Apparatus for reproducing information
08/15/2002US20020110061 Optical disk apparatus
08/15/2002US20020110060 Clock signal generating system
08/15/2002US20020110059 Recording clock generating device and method thereof
08/15/2002US20020110058 Recording apparatus, recording method, playback apparatus, playback method, recording/playback apparatus, recording/playback method, presentation medium and recording medium
08/15/2002US20020109930 Apparatus for recording and reproducing information and information reproducing method
08/15/2002US20020109928 Optical servo system for a tape drive
08/15/2002US20020109551 Amplifier circuit and method for reducing stray feedback
08/15/2002CA2435887A1 Recording apparatus and method, playback apparatus and method, recording medium, program, and computer-readable recording medium
08/14/2002EP1231791A2 Method and apparatus for synchronously reproducing audio and video data
08/14/2002EP1231786A2 Optimizing use of storage space in a video data recording system
08/14/2002EP1231735A2 Apparatus and method for generating code in a communication system
08/14/2002EP1231715A2 Recording method, recording apparatus, transmitting apparatus, reproducing method, reproducing apparatus, receiving apparatus, recording medium, and transmission medium
08/14/2002EP1231600A2 Access points on a disk in the form of wobbling address frames for tracks and zones
08/14/2002EP1230796A1 An arrangement for recording navigation information in a data recorder
08/14/2002EP1230795A1 Eliminating picture format artifacts in mpeg trick modes
08/14/2002EP1230794A1 Outer to inner recording for pause function
08/14/2002EP1230793A1 Reduced user response time during simultaneous playback and recording for recordable dvd
08/14/2002EP1230644A2 Delete and undelete for recordable dvd editing
08/14/2002EP1230643A1 Three-stage menu processing for digital disc recorder
08/14/2002EP1230642A1 Picture accurate edit without decoding and re-encoding of mpeg bit stream for recordable dvd
08/14/2002EP1230641A2 Allocating real time data on a disc like recording medium
08/14/2002EP1230640A1 Method for tracking defective sectors in writable disk media
08/14/2002EP1230639A1 Dvd-rom backwards compatible defective sector management in recordable dvd media
08/14/2002EP0974142B1 Reading method for disc-shaped optical storages
08/14/2002EP0743789B1 Recording device and reproducing device
08/14/2002CN2505953Y Optical disk structure possessing controlled chip
08/14/2002CN1364364A System, method and article for tracking distribution of content electronically of laser-disc-medium
08/14/2002CN1364297A Method for recording and/or reproducing data on/from recording/recorded meidum, reproducing apparatus, recording medium, method for recognizing recording/recorded medium
08/14/2002CN1364296A Method for converting analogue signal into binary output signal
08/14/2002CN1364295A Optical disk discriminating method and optical disk reproducing method and optical disk device
08/14/2002CN1364250A Entertainment apparatus and loading method for digital information
08/14/2002CN1363934A Method for providing main computer with sub-code data of CD drive
08/14/2002CN1363933A Device and method for determining short pulse series writing areas on rewritable DVD
08/14/2002CN1363932A Record media, appratus and method, reproducing apparatus and readable media by computer
08/14/2002CN1363931A Data reproducing device and method for improving inspective performance by adjusting determining level of inspector
08/13/2002USRE37818 Hard sectoring circuit and method for a rotating disk data storage device
08/13/2002USRE37817 Apparatus for recording a count signal in a fixed location regardless of transport velocity of record carrier
08/13/2002US6434719 Error correction using reliability values for data matrix
08/13/2002US6434701 System and method for digitally marking a file
08/13/2002US6434538 Data control method, for embedding data control information, method for detecting data control information, device for embedding data control information and device for recording data
08/13/2002US6434324 Data recording/reproducing apparatus, data recording/reproducing method and data format
08/13/2002US6434323 Digital information recording/reproduction apparatus and digital information recording/reproduction method
08/13/2002US6434322 Reproducing method and apparatus, for a video signal having copy control information
08/13/2002US6434321 Method and apparatus for slow-motion video and audio reproduction
08/13/2002US6434162 PCM data outputting method and PCM data output device enabling output of PCM group information and PCM data correctly correlated with each other
08/13/2002US6434109 Machine-readable optical disc with reading-inhibit agent