Patents
Patents for G11B 20 - Signal processing not specific to the method of recording or reproducing; Circuits therefor (81,980)
08/2001
08/02/2001US20010011251 Method and apparatus for contents information
08/02/2001US20010011237 Method and apparatus for recording and reproducing information on and from recording disc
08/02/2001US20010010757 Optical disk, reproduction apparatus, and reproduction method
08/02/2001US20010010756 Information signal output control method, information signal duplication prevention method, information signal duplication prevention device, and information signal recording medium
08/02/2001US20010010755 Digital video recording system and its recording medium
08/02/2001US20010010751 Code multiplexing/reading apparatus
08/02/2001US20010010748 Video signal processor for recording video signal digitally
08/02/2001US20010010672 Information recording medium, enclosing casing of information recording medium, and information recording apparatus using the same
08/02/2001US20010010671 Recording medium of stream data, and recording method and playback method of the same
08/02/2001US20010010670 Storage media reading system
08/02/2001US20010010664 Recording medium of stream data, and recording method and playback method of the same
08/02/2001US20010010605 Read/write control system for a disk drive
08/02/2001US20010010604 Sync detector for use in data storage system for detecting extended sync pattern
08/02/2001US20010010603 Information refresh method, storage system and storage medium thereof
08/02/2001US20010010364 System for and method of reading out storage phosphor screen using pulsed semiconductor light source array
08/02/2001US20010010333 Method and apparatus for patterning cards, instruments and documents
08/02/2001DE10104205A1 Automatic servo-pattern writing method for disc-drives in data processing and computing installations, requires using servo-timing and positioning information for positioning the data
08/02/2001CA2365345A1 Data recording/reproducing device and saved data processing method, and program providing medium
08/02/2001CA2361356A1 Storage device authentication system
08/01/2001EP1120978A1 Apparatus capable of encoding audio/video data with decreased buffer capacity
08/01/2001EP1120934A2 Method and apparatus for key distribution using a key base
08/01/2001EP1120789A2 Reproducing apparatus
08/01/2001EP1120787A1 Information recording method, information recording device, and information recording medium
08/01/2001EP1120777A2 Optical disk
08/01/2001EP1119973A1 System and method forperforming fast forward and slow motion speed changes in a video stream based on video content
08/01/2001EP1119917A1 Detection apparatus
08/01/2001EP1119856A1 Latent irradiance discrimination method and marker system for cartridgeless data storage disks
08/01/2001EP1119854A1 Transmission of a digital information signal having m bit pcm samples
08/01/2001EP1119853A1 Method and apparatus for determining the provenance of a data carrying disc
08/01/2001EP1119817A1 Cloning protection scheme for a digital information playback device
08/01/2001EP0864198A4 Data detection for partial response channels
08/01/2001CN1306667A Method of registering running time on information carrier, information carrier and appts
08/01/2001CN1306665A Efficient run length limited code with short interleaved constraint
08/01/2001CN1306664A Usage dependent ticket to protect copy-protected material
08/01/2001CN1306663A Key distribution via memory device
08/01/2001CN1306659A Data storage system having efficient blook code implementation
08/01/2001CN1306474A Methods and appts. for rendering optically encoded medium unreadable
08/01/2001CN1306280A Image reader for optical device
08/01/2001CN1306279A Data reproduction equipment and method thereof
08/01/2001CN1306278A Distributing channel identification symbol and method for selecting, channel, optical recording and reproduction device
08/01/2001CN1306272A Combined laminal optical disk and its array data access method
08/01/2001CN1306252A Method of computer controlled portable personal device and operation method of such device
07/2001
07/31/2001US6269434 Recording and reproducing apparatus including a nonvolatile memory which includes a first area for file management tables and a second area for data and a control unit
07/31/2001US6269424 Disk array device with selectable method for generating redundant data
07/31/2001US6269338 Data compression and expansion of an audio signal
07/31/2001US6269220 System decoder and method using a single memory for a digital video disc playback device
07/31/2001US6269219 Recording four channels of digital audio data on two channels of a magnetic tape
07/31/2001US6269125 System and method for trellis encoding a digital signal
07/31/2001US6269071 Optical record carrier
07/31/2001US6269069 Optical disk, optical disk device, and method of reproducing information on optical disk
07/31/2001US6269068 Optical disk, optical disk device, and method of reproducing information on optical disk
07/31/2001US6269065 Recording medium and recording/reproduction apparatus thereof
07/31/2001US6269063 Recording/reproducing apparatus and method and program offering medium
07/31/2001US6269061 Servo control system for disk player
07/31/2001US6269059 Apparatus for and method of adding information onto recording medium that enables additional recording
07/31/2001US6268975 Tape drive utilizing encoded file markers to locate target positions
07/31/2001US6268974 Gain optimization in a disc drive
07/31/2001US6268973 Generating appendable points in encoded data
07/31/2001US6268972 Method for measuring relative and absolute amplitudes of a signal read from a data storage medium
07/31/2001US6268812 Optical rotating recording medium, data recording method, recording apparatus and reproducing apparatus
07/31/2001US6268810 Method of generating run length limited (RLL) code having improved DC suppression capability and modulation/demodulation method of the generated RLL code
07/31/2001CA2234972C Digitally removing video copy protection pulses
07/26/2001WO2001054345A1 Security systems for motion picture, video, program, and datafile transmission, viewing, access control and usage control
07/26/2001WO2001054324A2 Music distribution systems
07/26/2001WO2001054127A1 Apparatus and method for reconstructing missing data using cross-parity stripes on storage media
07/26/2001WO2001054126A1 Method for recording or playback of low bitrate data streams
07/26/2001WO2001054125A1 Digital recording/data reproducing apparatus
07/26/2001WO2001054124A1 Disc reproducing apparatus and disc reproducing method
07/26/2001WO2001054123A1 Optical disk discriminating method and optical disk reproducing method and optical disk device
07/26/2001WO2001054119A2 Optical recording medium, optical reproduction apparatus, and optical reproduction method
07/26/2001WO2001054118A1 Method and system for providing file streaming utilizing a disk drive
07/26/2001WO2001054099A1 Data authentication system
07/26/2001WO2001001566A3 Method for processing an audio signal
07/26/2001US20010010085 Recovering and relocating unreliable disk sectors when encountering disk drive read errors
07/26/2001US20010010049 System of sharing objects having a plurality of contents
07/26/2001US20010009608 Reproducing apparatus
07/26/2001US20010009606 System of sharing objects having a plurality of contents
07/26/2001US20010009605 Digital video recording system and its recording medium
07/26/2001US20010009604 Digital video recording system and its recording medium
07/26/2001US20010009580 Information encryption device and encryption method
07/26/2001US20010009548 Method and apparatus for converting data streams
07/26/2001US20010009539 Method of data recording
07/26/2001US20010009537 Method of formatting optical recording medium
07/26/2001US20010009485 Method and apparatus for taking out information using magnetic sensor and carrying out test of article by using that information
07/26/2001US20010009483 Signal processing circuit and information recording/reproducing apparatus using the same, and method for optimizing coefficients of equalizer circuit
07/26/2001US20010009423 Time-based media processing system
07/26/2001DE10003166A1 Information processing and recording method using e.g. compact disc, digital video disc, involves combining predetermined information as bit into integer number to be assigned in bit sequence
07/26/2001CA2397677A1 Music distribution systems
07/26/2001CA2365236A1 Data authentication system
07/25/2001EP1119208A2 Digital video recorder with several video sources and multiplexer for such a digital video recorder
07/25/2001EP1119194A2 Audio and video reproduction apparatus, and audio and video reproduction method
07/25/2001EP1119108A1 Lossless compression encoding method and device, and lossless compression decoding method and device
07/25/2001EP1118998A1 Multimedia information recording device and method for recording multimedia information file on recording medium
07/25/2001EP1118997A2 Information reproduction apparatus and information reproduction method
07/25/2001EP1118996A2 Information reproduction apparatus and information reproduction method
07/25/2001EP1118993A1 Information recording medium, information recording device, information recording method, information reproducing device, and information reproducing method
07/25/2001EP1118992A1 Magnetic recording/reproducing unit
07/25/2001EP1118936A2 Duplex disk controller
07/25/2001EP1118931A2 Method of controlling portable personal device having facilities of storing and playing digital contents by computer and portable personal device operation method therefor
07/25/2001EP1118194A1 Sequence estimation for partial response channels