Patents
Patents for G11B 20 - Signal processing not specific to the method of recording or reproducing; Circuits therefor (81,980)
08/2000
08/15/2000US6104188 Surface analysis test defect detector for direct access storage device
08/15/2000US6102800 Information storage medium and electronic device using the same
08/15/2000CA2125220C Noise suppressing apparatus capable of preventing deterioration in high frequency signal characteristic after noise suppression and in balanced signal transmitting system
08/10/2000WO2000046805A1 Information recording medium, information recording method and information recording/reproduction system
08/10/2000WO2000046804A1 Information recording/reproducing system
08/10/2000WO2000046803A1 Method for creating stream data and method for partial deletion
08/10/2000WO2000046802A1 Adaptive equalizing circuit
08/10/2000WO2000046801A1 A system for storing, restoring and distributing video-films from optical disks
08/10/2000WO2000046798A1 Optical recording medium and recording / reproduction method and apparatus therefor
08/10/2000DE19906449C1 Multimedia data stream encryption method provides first section of useful data block which is not encrypted for providing preview or prelist function
08/09/2000EP1026890A2 Information recording and reproducing apparatus, and information recording and reproducing method
08/09/2000EP1026845A2 System for recording broadcast transmissions for playback at a later time
08/09/2000EP1026683A1 System and method for ensuring the integrity of stored data
08/09/2000EP1026682A1 System and method for selectively recovering areas on a disc marked as unuseable
08/09/2000EP1026681A1 Information recording medium, information recording method and information recording/reproduction system
08/09/2000EP1026680A1 Signal processor
08/09/2000EP1026679A2 Recorded information reproducing apparatus
08/09/2000EP1026671A1 Optical recording medium and recording/reproduction method and apparatus therefor
08/09/2000EP1026670A2 Optical recording medium and recording/reproduction method and apparatus therefor
08/09/2000EP1026669A2 Optical recording medium and recording/reproduction method and apparatus therefor
08/09/2000EP1025700A1 Method and apparatus for non-sequential access to an in-progress video feed
08/09/2000EP1025562A1 Method and device for measuring and registering statistical time variations for an optical data carrier
08/09/2000EP1025561A2 Apparatus for monitoring and preventing unauthorized copying of digital data
08/09/2000EP1025560A1 Copy protectable optical media device and methodology therefor
08/09/2000EP1025543A1 Optical disc authentication and data storage
08/09/2000EP1025534A2 Computer partition manipulation during imaging
08/09/2000EP1025498A1 Method and apparatus for targeting a digital information playback device
08/09/2000CN2391277Y Variable speed digital real-time recording and playback apparatus capable of keeping voice nature
08/09/2000CN1262770A Method and system for data recording/reproducing, apparatus for recording/reproducing, and media for recording program
08/09/2000CN1262769A Device for write compensation in magnetic-media recording
08/09/2000CN1262764A Data stream recording/reproducing apparatus, recording/reproducing method, and recording medium
08/09/2000CN1262509A Method and device for making watermark without clear print
08/09/2000CN1262506A Recording medium, system and method for recording reproducing same
08/08/2000US6101619 Method for improving access performance on track with re-allocation sector in a hard disk drive
08/08/2000US6101575 Tape drive data buffering
08/08/2000US6101546 Method and system for providing data files that are partitioned by delivery time and data type
08/08/2000US6101476 CD-ROM software protection system
08/08/2000US6101474 Voice recording/reproducing apparatus
08/08/2000US6101381 Telecommunication system, radio base station thereof, and portable telecommunication terminal thereof
08/08/2000US6101314 Digital video signal processing for recording and replay
08/08/2000US6101312 Automatic picture quality controller
08/08/2000US6101229 Data synchronization method and circuit using a timeout counter
08/08/2000US6101227 Detector and method for detecting defects in the magnetic media of a mass storage system
08/08/2000US6101163 Optical disc apparatus with reduced leakage of wobble signal to reproduction signal
08/08/2000US6101162 Method and apparatus for initializing rewritable recording media
08/08/2000US6101159 Optical data recording method, and data recording medium
08/08/2000US6101158 Apparatus and method for reducing phase discontinuity between new data and previously written data on a read/write optical storage medium
08/08/2000US6101154 Method of recording data on magneto-optical recording medium and apparatus thereof
08/08/2000US6101070 Method and apparatus for determining information and a cassette for use therewith
08/08/2000US6101054 Apparatus for compensating thermal asperity in the data channel of a disk storage system
08/08/2000US6101051 Information recording and updating method, information recording and updating apparatus, recording medium initializing apparatus and recording medium
08/08/2000US6100829 Method and apparatus for a digital peak detection system including a countdown timer
08/08/2000US6100812 Communication control method, communication system and electronic equipment used for it
08/08/2000US6100724 Digital signal reproducing circuit
08/08/2000US6098881 Magnetic stripe card verification system
08/08/2000CA2232708C Copying and playing protection for digital programs
08/03/2000WO2000045517A1 Data error correcting device
08/03/2000WO2000045386A1 Recording method and reproduction method suitable for recording/reproduction of av data, and recording drive and reproduction drive
08/03/2000WO2000045382A1 Disklike storage medium and tracking method using the same
08/03/2000WO2000045381A1 Record carrier, playback device and method of recording information
08/03/2000WO2000045296A1 A data storage and reduction method for digital images, and a surveillance system using said method
08/03/2000DE19960524A1 Verfahren und Vorrichtung zum Wiederherstellen einer Festplatte eines Computersystems Method and apparatus for restoring a hard disk of a computer system
08/02/2000EP1024495A2 Recording medium and system for recording and reproducing the recording medium
08/02/2000EP1024494A2 Recording medium and system for recording and reproducing the recording medium
08/02/2000EP1024493A2 Digital signal transmission, computer program product, and recording medium
08/02/2000EP1024492A2 Recording medium, and system and method for recording and reproducing
08/02/2000EP1024490A1 AV data and computer data recording method and reproduction method, and recording drive and reproduction drive, information recording system and information reproduction system, and information recording medium for such methods
08/02/2000EP1024489A2 Eight-to-fifteen modulation using no merging bit and optical disc recording or reading systems based thereon
08/02/2000EP1024488A1 Data decoding apparatus and data decoding method
08/02/2000EP1024478A1 Optical disk for use with an encryption or program license system
08/02/2000EP1023730A1 Frame-based audio coding with additional filterbank to attenuate spectral splatter at frame boundaries
08/02/2000EP1023729A1 Frame-based audio coding with video/audio data synchronization by audio sample rate conversion
08/02/2000EP1023728A1 Frame-based audio coding with video/audio data synchronization by dynamic audio frame alignment
08/02/2000EP1023727A1 Frame-based audio coding with additional filterbank to suppress aliasing artifacts at frame boundaries
08/02/2000EP1023177A1 Interleaved data communications system for controlling multiple centrifuges
08/02/2000CN1261747A Information transmission system, signal output processor, recorder and medium
08/02/2000CN1055192C Method for dubbing digital video signals
08/01/2000USRE36803 Bit clock reproducing circuit
08/01/2000US6098193 Data-reproducing device that detects equalization in the presence of pre-equalization data variation
08/01/2000US6098185 Header-formatted defective sector management system
08/01/2000US6098077 Data management apparatus, data management method, and recording medium
08/01/2000US6098046 Frequency converter system
08/01/2000US6097880 Digital signal processing method, digital signal processing apparatus, digital signal recording method, digital signal recording apparatus, recording medium, digital signal transmission method and digital signal transmission apparatus
08/01/2000US6097875 Information reproducing apparatus for optically reading a data code pattern from an information recording medium where information is recorded as an optically readable data code pattern, and for reproducing such information
08/01/2000US6097814 Method and apparatus for controlling the reproduction of data stored on a storage medium method
08/01/2000US6097777 Phase locked loop circuit
08/01/2000US6097769 Viterbi detector using path memory controlled by best state information
08/01/2000US6097695 Optical disk with a groove for defining serial data modulated into a signal using modulation processing
08/01/2000US6097694 Optical disc, optical disc device, and method for recording an optical disc
08/01/2000US6097685 Information reproducing apparatus and reproducing method
08/01/2000US6097684 Optical disk drive recording/reproduction apparatus and method for producing modified address data
08/01/2000US6097683 Information recording/reproducing apparatus and a method of recording information onto an information recording/reproducing media having a plurality of storage medium types and recording modes
08/01/2000US6097682 Method and apparatus for writing and reading optical recording medium
08/01/2000US6097678 Information recording apparatus
08/01/2000US6097676 Information recording medium and reproducing device therefor with codes representing the software category and channels of recorded data
08/01/2000US6097561 Data recovery in a disc drive with redundant sync data blocks
08/01/2000US6097560 Reproducing apparatus having clock generator controlled by detected phase-difference and tendency of phase-difference
08/01/2000US6097558 Digital audio signal transmission apparatus with data blocks of varying sizes
08/01/2000US6097557 Method and apparatus for recording compressed audio data on recording medium and method for transferring compressed audio data
08/01/2000US6097321 Punctured maximum transition run code, apparatus and method for providing the same