Patents
Patents for G11B 20 - Signal processing not specific to the method of recording or reproducing; Circuits therefor (81,980)
10/1998
10/13/1998US5822143 Decision feedback equalization implementation of partial-response signaling in a magnetic recording channel
10/13/1998US5822142 Method of mapping logical sectors to physical sectors in a disk drive sparing partition
10/13/1998US5822140 Digital address information recording method for recording absolute address together with information signal on recording medium
10/13/1998US5821883 Data modulation apparatus and data modulation apparatus including means for adding constant data to the ends of input address data and recording data necessary for run-length limited (1,7) decoding
10/13/1998US5821810 Method and apparatus for trim adjustment of variable gain amplifier
10/13/1998US5820384 Sound recording
10/08/1998WO1998044742A1 Picture coding device, picture coding method, picture decoding device, picture decoding method, and providing medium
10/08/1998WO1998044730A1 Recording and reproducing device and method for reproducing video information at variable speed
10/08/1998WO1998044636A1 Maximum transition run length code
10/08/1998WO1998044633A2 Maximum transition run length code
10/08/1998WO1998044509A1 Audio reproducing device
10/08/1998WO1998044508A1 Method and apparatus for recording data of a digital versatile disc recorder
10/08/1998WO1998044503A1 Digital information signal recording device and method
10/08/1998WO1998044502A1 Device and method for recording and reproducing digital information signal
10/08/1998WO1998044494A1 System and method to compensate for data defects within a magneto-optical computer memory device
10/08/1998WO1998044492A1 Description and reading method for disc-shaped optical storages
10/08/1998WO1998044485A2 Apparatus for and method of recording information signals on a record carrier
10/08/1998WO1998044415A1 Error detective information adding equipment
10/08/1998WO1998032130A3 Recording of subcode signals in slant tracks on a record carrier
10/08/1998DE19713577A1 Verfahren zum Beschreiben und Lesen von plattenförmigen, optischen Speichern A method for writing to and reading from disc-shaped, optical memories
10/07/1998EP0869679A2 Encoding, decoding and editing
10/07/1998EP0869677A2 Video data recording and reproducing apparatus
10/07/1998EP0869675A2 An exciter circuit for digital television transmitters
10/07/1998EP0869674A1 Transmitting system and method
10/07/1998EP0869673A2 Television signal broadcasting system with common clock reference
10/07/1998EP0869672A1 Predistortion circuit for an RF amplifier
10/07/1998EP0869671A1 Frequency controlling circuit for digital television transmission
10/07/1998EP0869670A1 Combining adjacent TV channels for transmission by a common antenna
10/07/1998EP0869666A2 A digital system having a sync confidence counter
10/07/1998EP0869650A2 A trellis encoder for encoding a digital data stream
10/07/1998EP0869622A2 Scalable audio coding/decoding method and apparatus
10/07/1998EP0869502A2 Optical disk writing control device
10/07/1998EP0869497A2 Large-capacity recording medium and method and apparatus for recording data on a large-capacity recording medium
10/07/1998EP0869496A2 DVD disc, device and method for reproducing the same
10/07/1998EP0869486A2 Information recording/reproducing optical disk and method of forming the same
10/07/1998EP0869485A2 Optical data recording and reproducing apparatus and method and optical storage medium
10/07/1998EP0869484A2 CD encode device for optical disk drive
10/07/1998EP0869436A2 Method of storing data in a redundant array of disks and redundant array of disks
10/07/1998EP0868785A1 Conversion of a sequence of m-bit information words into a modulated signal
10/07/1998EP0868724A1 Device for write compensation in magnetic media recording
10/07/1998EP0868716A1 Method for recovering data from disk with magneto-resistive head in presence of thermal asperities
10/07/1998EP0761051A4 Method and apparatus for recording sensor data
10/07/1998EP0727074A4 Data block format for software carrier and player therefor
10/07/1998CN2293885Y Recording & playing acoustics with new circuit
10/07/1998CN1195170A DVD disc, device and method for reproducing same
10/07/1998CN1195169A Information signal recording and reproducing apparatus and recording and reproducing method
10/07/1998CN1195168A Device for CD reproduction with variable speed or direction
10/07/1998CN1195160A Scalable audio coding/decoding method and apparatus
10/07/1998CN1040167C Digital recording and/or reproducing apparatus of video signal
10/07/1998CN1040161C Bypassing circuit for use in audio signal recording reproducing apparatus
10/06/1998USH1752 Single digital signal processor to record digital audio data on a magneto optical disk
10/06/1998US5819297 Method and apparatus for creating reliably duplicatable tape volumes without copying any padding
10/06/1998US5819290 Data recording and management system and method for detecting data file division based on quantitative number of blocks
10/06/1998US5819215 Method and apparatus for wavelet based data compression having adaptive bit rate control for compression of digital audio or other sensory data
10/06/1998US5819214 Length of a processing block is rendered variable responsive to input signals
10/06/1998US5819211 Adaptive transform acoustic coding circuit formed in a single application specific integrated circuit of a mini disk system
10/06/1998US5819109 System for storing pending parity update log entries, calculating new parity, updating the parity block, and removing each entry from the log when update is complete
10/06/1998US5819003 Multi-scene recording medium having data units of program information items recorded alternatingly and continuously thereon, and apparatus for reproducing data therefrom
10/06/1998US5819001 Error correcting method for multispeed play of digital video cassette recorder
10/06/1998US5818964 Method and apparatus for selecting an adaptive filter for image data
10/06/1998US5818812 Optical recording medium and reproducing method for the same
10/06/1998US5818807 Optical medium having a test recording area and method for recording test data thereon
10/06/1998US5818806 Method and apparatus for providing equalization for the reading of marks on optical data storage media
10/06/1998US5818805 Reproducing apparatus using an information recording medium wherein multi-bit digital information is represented by a shift amount of a pit edge
10/06/1998US5818801 Shockproof optical reproduction device
10/06/1998US5818656 Circuitry for correction of thermal transients in the analog signal from a magnetoresistive sensor
10/06/1998US5818655 Signal processing circuit and information recording/reproducing apparatus using the same, and method for optimizing coefficients of equalizer circuit
10/06/1998US5818654 Apparatus and process for managing defective headerless sectors
10/06/1998US5818653 Multiple-values digital signal magnetic recording and reproducing apparatus using a QAM and PSK modulator, pilot signal and a viterbi decoder
10/06/1998US5818652 Device for reproducing a recording medium having plural recording areas
10/06/1998US5818545 Remote command light receiving window arranged in logo on frame around television screen
10/06/1998US5818367 Signal modulating method, signal modulating apparatus, signal demodulating method and signal demodulating apparatus
10/04/1998CA2233247A1 Television signal broadcasting system with common clock reference
10/04/1998CA2232759A1 Combining adjacent tv channels for transmission by a common antenna
10/01/1998WO1998043379A2 Data transfer system, transmitter and receiver
10/01/1998WO1998043244A1 Memory system for multisignal
10/01/1998WO1998043243A1 Integrated control and decoding circuits for compact disk players
10/01/1998WO1998043241A1 Information reproducer, information recorder and reference mark detection circuit
10/01/1998WO1998033176A3 System for copy protection of recorded signals
10/01/1998WO1998028742A3 Optical recording method and apparatus using this method
09/1998
09/30/1998EP0868091A2 Method and apparatus for storing multiple protocol, compressed audio and video data
09/30/1998EP0867907A2 Electron emission device for generating and emitting spin-polarized electrons
09/30/1998EP0867879A2 Device for CD reproduction with variable speed or direction
09/30/1998EP0867877A2 DVD-audio disk, and apparatus and method for playing the same
09/30/1998EP0867801A1 Bit rate control interface for the recording and/or reading of digital data
09/30/1998EP0867073A1 A digital modulation apparatus, a digital modulation method, and a recording medium therefor
09/30/1998EP0867025A1 Reconstruction of syndromes for bi-level on-the-fly error correction in disk drive systems
09/30/1998EP0866978A1 Method for testing digital circuits within synchronously sampled data detection channel
09/30/1998EP0482819B1 On-line reconstruction of a failed redundant array system
09/30/1998CN1194753A Multimedia optical disk on which audio data of a plurality of channels and sub-video data together with time-varying image data, and device and method of reproducing the data
09/30/1998CN1194737A Encoding apparatus for encoding a plurality of information signals
09/30/1998CN1194539A Image information recording and replay device
09/30/1998CN1194432A Digital general disc, audio-frequency disc, and its play device and method
09/30/1998CN1194429A Data decoder
09/29/1998US5815730 Method and system for generating multi-index audio data including a header indicating data quantity, starting position information of an index, audio data, and at least one index
09/29/1998US5815691 Method for controlling an external memory for a CD-ROM decoder and apparatus therefor
09/29/1998US5815650 Efficient system for predicting and processing storage subsystem failure
09/29/1998US5815635 Identification code processing apparatus for digital VCR
09/29/1998US5815634 Stream synchronization method and apparatus for MPEG playback system
09/29/1998US5815633 Multi-scene recording medium and apparatus for reproducing data therefrom