Patents
Patents for G11B 20 - Signal processing not specific to the method of recording or reproducing; Circuits therefor (81,980)
06/2000
06/07/2000CN1255809A Method for copying digital video signal
06/07/2000CN1255807A Receiving, recording and reproduction system for digital broadcasting, and receiving appts. for digital broadcasting
06/07/2000CN1255796A Digital signal processing and signal form
06/07/2000CN1255793A Copied generation administrative method, information signal recorder, output device and reproduction device
06/07/2000CN1255706A Method and device for recording and reproducing video signal
06/07/2000CN1255704A Data processing device and data recording device
06/07/2000CN1255702A Modulation method and demodulation method, and modulator and demodulator thereof
06/07/2000CN1053307C Multi-media distribution and multi-media player
06/06/2000US6073189 System and method for incremental packet recording of recordable compact discs
06/06/2000US6072935 System and method for improving video recorder performance in a search mode
06/06/2000US6072918 Information reproducing device for reproducing multimedia information recorded in the form of optically readable code pattern, and information recording medium storing multimedia information in the same form
06/06/2000US6072917 Code sheet and information reproduction apparatus
06/06/2000US6072828 Timing recovery apparatus and method using equalizer and apparatus for judging last data
06/06/2000US6072808 Method of providing and retrieving a data segment
06/06/2000US6072759 Recording medium with format for preventing unauthorized copying, and reproducing apparatus for same
06/06/2000US6072756 Optical disk apparatus and data recording method
06/06/2000US6072755 Optical disk player having multidomain memory for storing demodulated, error-corrected and descrambled data
06/06/2000US6072754 Magneto-optical medium and reproducing device for the same
06/06/2000US6072651 Information recording/reproducing apparatus for reproducing information without requiring tracking servo
06/06/2000US6072650 Data placement variation compensation system
06/06/2000US6072649 Constant density recording method and system for headless format in hard disc driver
06/06/2000US6072648 System and method for formatting disc surfaces
06/06/2000US6072647 Reproduced signal waveform control device for magnetoresistive head
06/06/2000US6072646 Recording apparatus, recording/reproducing apparatus and recording method for digital signals
06/06/2000US6072410 Coding/decoding method for high density data recording and reproduction
06/06/2000US6072368 Phase locked loop unlock detector
06/06/2000US6070799 Copy protection for a recordable medium and for controlling a recorder
06/03/2000CA2291549A1 Method of and apparatus for restricting copy of digital information, and apparatus for recording digital information
06/02/2000WO2000031980A1 Information recording medium, apparatus and method for recording or reproducing data thereof
06/02/2000WO2000031956A2 A method and apparatus for accessing stored digital programs
06/02/2000WO2000031740A1 Recording and reproducing a digital information signal in a first or a second recording / reproducing mode on/from a record carrier
06/02/2000WO2000031737A1 Optical recording medium and method of assigning its spare area
06/02/2000WO2000014734A3 Reading primary and security data from optically readable data storage media
05/2000
05/31/2000EP1005226A2 MPEG reproducing apparatus and methods
05/31/2000EP1005218A2 Decoder for decoding still picture data and data on which a data length of still picture data is recorded, reproducing apparatus for reproducing from a recording medium, and a reproducing method
05/31/2000EP1005213A2 Multiple message multilevel analog signal recording and playback system containing configurable analog processing functions
05/31/2000EP1005166A2 Method for detecting frequency of digital phase locked loop
05/31/2000EP1005044A2 Information recording medium, information recording apparatus and information reproducing apparatus
05/31/2000EP1005043A1 Information recording medium, motion-picture voice recording/reproducing apparatus, and motion-picture voice recording/reproducing method
05/31/2000EP1005042A2 Method and apparatus for recording and reproducing video signals
05/31/2000EP1005041A2 Information recording medium, information recording apparatus and information reproducing apparatus
05/31/2000EP1005040A1 Information signal copvright protection method, information signal recording method and device, and information signal output method and device
05/31/2000EP1005035A1 An optical disk and an optical disk reproduction apparatus
05/31/2000EP1005034A1 An optical disk carrying barcoded information
05/31/2000EP1005033A1 An optical disk and an optical disk reproduction apparatus
05/31/2000EP1005028A1 Optical disk, optical recorder, optical reproducer, cryptocommunication system and program license system
05/31/2000EP1005027A1 Optical recorder, optical reproducer, cryptocommunication system and program license system
05/31/2000EP1005026A1 Optical recorder, optical reproducer, cryptocommunication system and program license system
05/31/2000EP1005025A1 Optical disk for use with an encryption or program license system
05/31/2000EP1005024A1 Optical reproducing device for the reproduction of encrypted information
05/31/2000EP1005023A1 Optical reproducing device for the reproduction of encrypted information
05/31/2000EP0913055B1 Method of adaptive control of the presence of a copy protection signal
05/31/2000EP0775418B1 Apparatus and method for comprehensive copy protection for video platforms and unprotected source material
05/31/2000DE19956827A1 Mini-disc sound reproduction device has operating control for switching between synchronous reproduction of main data and sub-data and selective reproduction of main data or sub-data
05/31/2000CN1254925A Reproducer and reproducing method
05/31/2000CN1254924A Record medium, record device and replayer for optical disk
05/31/2000CN1254920A Magnetic disk device with lower probability of read error caused by surface seratch of magnetic disk
05/31/2000CN1254919A Magnetic disk drive able to read out signal again from magnetic disk when read signal is error
05/31/2000CN1254918A Method and device for modulating and demodulating data
05/31/2000CN1254917A Device and method for reproducing standard bit streams in expert group for moving images
05/31/2000CN1254916A Reproducer and signal processor
05/31/2000CN1254911A Record medium with defect management and spare area and method for distributing spare area
05/31/2000CN1053079C Equipment and method for producing multi-channel sound with two loudspeakers
05/30/2000US6070249 Split parity spare disk achieving method in raid subsystem
05/30/2000US6069898 Data transmitter, data receiver, data communication system, and data communication method
05/30/2000US6069869 Optical disk and optical disk drive device
05/30/2000US6069866 System and method for coarse gain control of wide band amplifiers
05/30/2000US6069865 Method and apparatus for cutting apart of a main signal and recording it as a synchronous signal
05/30/2000US6069864 Method of recording data compensated using pre-recorded signals from an optical medium
05/30/2000US6069856 Information recording/reproduction method and apparatus using EPRML connection processing system using concatenated demodulators
05/30/2000US6069855 Synchronous circuit and optical disk reproduction device capable of realizing more precise synchronization
05/30/2000US6069854 Disk reproducing device, a disk reproducing method, a disk rotation control method, and a regenerative clock signal generating device
05/30/2000US6069763 Data recording device
05/30/2000US6069760 Method of eliminating wiggle noise for a disk driving/recording apparatus
05/30/2000US6069759 Method for laying out an adaptive zone of a hard disk drive
05/30/2000US6069758 Technique for reducing read channel optimization time
05/30/2000US6069757 Digital transmission signal processing system and recording/reproducing system
05/30/2000US6069665 Additional information superimposition device
05/30/2000US6069499 Data slicer
05/30/2000US6068921 Carbon fluoride particles, preparation process and users of the same
05/30/2000CA2078981C Disk recording/reproducing apparatus and disks applied therein
05/30/2000CA2078762C Recording disc
05/26/2000CA2290309A1 Information signal copyright protection method, information signal recording method and device, and information signal output method and device
05/25/2000WO2000030361A1 Encoding auxiliary information with frame-based encoded audio information
05/25/2000WO2000030284A1 Secure optically readable memory usable in connection with a limited number of machines
05/25/2000WO2000030113A1 Method and device for recording real-time information
05/25/2000WO2000030112A1 Method and device for recording real-time information
05/25/2000WO2000030108A2 A method of reacquiring clock synchronization on a non-tracking helical scan tape device
05/25/2000WO2000030107A1 Multi-rate clock generator and multi-rate digital data reproducing device
05/25/2000WO2000030105A2 Method and apparatus for logically rejecting previously recorded track residue from magnetic media
05/25/2000WO2000030104A1 Information processing system, device and method
05/25/2000WO2000030103A1 Method and apparatus for audio signal processing
05/25/2000WO2000030102A1 Arrangement for reading information from a record carrier
05/25/2000WO2000030101A1 Embedding and extracting supplemental data in an information signal
05/25/2000WO2000030100A2 Method of and device for generating a key
05/25/2000WO2000030076A2 Methods for monitoring or adjusting a tape drive using control data packets
05/25/2000WO2000029996A1 Terminal, charging system, and data processing method
05/25/2000WO2000000348A9 Security marking system and method for minimizing pirating of data on data media
05/24/2000EP1003338A2 Image data reproducing method, image data reproducing apparatus, image data recording method and image data recording apparatus
05/24/2000EP1003337A1 Information recording medium, apparatus and method for recording or reproducing data thereof