Patents
Sitemap › G11 - Information storage › G11B - Information storage based on relative movement between record carrier and transducer › G11B 20 - Signal processing not specific to the method of recording or reproducing; Circuits therefor
Patents for G11B 20 - Signal processing not specific to the method of recording or reproducing; Circuits therefor (81,980)
11/1985
11/06/1985EP0160539A2 Methods of and apparatus for reproducing recorded video signals
11/05/1985US4551840 Digital data duplication apparatus
11/05/1985US4551773 Encoding and decoding apparatus and method utilizing hierarchical code substitution
11/05/1985US4551771 Method and apparatus for recording digital information in alternate recording tracks
11/05/1985CA1196421A1 Restitution of an analog signal by filtering
10/1985
10/30/1985EP0159785A2 Optical recording & reproducing apparatus
10/30/1985EP0159546A1 Digital graphic equalizer
10/29/1985US4550391 Data capture window extension circuit
10/29/1985US4550347 Method for recording information on a recording disc
10/29/1985CA1196107A1 Methods of correcting errors in binary data
10/29/1985CA1196106A1 Method and apparatus for error correction
10/23/1985EP0159111A1 Method and apparatus for storing/retrieving digital data on video tape
10/23/1985EP0159042A2 An apparatus for reducing noise in audio signals
10/23/1985EP0158980A2 Digital time base corrector
10/23/1985EP0158672A1 Shared encoder/decoder circuits for use with error correction codes of an optical disk system
10/22/1985US4549298 Detecting and correcting errors in digital audio signals
10/22/1985US4549295 System for identifying defective media in magnetic tape storage systems
10/22/1985US4549289 Method for correcting acoustic distortion
10/22/1985US4549230 Redundantly and asynchronously recording an information signal
10/22/1985US4549227 Method and apparatus for recording a digital information signal in parallel tracks on a record medium without guard bands between at least some adjacent tracks
10/22/1985US4549167 Method of encoding and decoding binary data
10/16/1985EP0158219A1 Sync responsive clock generator for digital demodulators
10/16/1985EP0158067A1 Optical disc device
10/16/1985EP0158035A2 Circuit arrangement for determining the digital sum value of a digital data signal
10/16/1985EP0157834A1 Preformatted diagnostic information recording disk
10/15/1985US4547818 Circuit arrangement for the recording of data on a magnetic recording carrier
10/15/1985US4547764 Pulse width decoder for double frequency encoded serial data
10/15/1985US4547741 Noise reduction circuit with a main signal path and auxiliary signal path having a high pass filter characteristic
10/15/1985CA1195423A1 Magnetic tape recording and reproducing arrangements
10/15/1985CA1195387A1 Noise reduction circuit
10/09/1985EP0157598A2 Device operable like an automatic level control circuit for decoding a multivalued signal
10/09/1985EP0157577A2 Information recording disc and reproducing apparatus therefor
10/09/1985EP0157490A1 Aperture compensation signal processor for optical recording
10/09/1985EP0157053A2 High order digital phase lock loop system
10/09/1985EP0156880A1 Optically storing digital data
10/09/1985EP0156879A1 Optical disk format employing resynchronizable data sectors
10/09/1985EP0156878A1 Error detection and correction in an optical storage system
10/09/1985EP0156859A1 Sync pattern encoding system for data sectors written on a storage medium
10/08/1985US4546474 Method of error correction
10/08/1985US4546462 Optical data recording and reproducing apparatus
10/08/1985US4546461 Method for recording information on a recording disc
10/08/1985US4546394 Signal reconstruction circuit for digital signals
10/08/1985US4546393 Magnetic recording method
10/08/1985US4546392 Information recording and reproducing apparatus
10/08/1985US4546342 Data compression method and apparatus
10/08/1985US4546330 Phase-locked loop circuit
10/08/1985US4546242 Method for protecting against the re-transfer of uniquely recorded information on a data carrier and apparatus for recording and/or reading re-transfer-protected information
10/02/1985EP0156724A1 Recording method for a disc memory, an a disc memory system
10/02/1985EP0156555A1 Optical reproducing apparatus & method
10/02/1985EP0156440A2 An information transmission method with error correction for user words, an error correcting decoding method for such user words, an apparatus for information transmission for use with the method, a device for information decoding for use with the method and an apparatus for use with such device
10/02/1985EP0156413A1 Decoding device for a stream of code symbols which are word-wise protected by a double Reed-Solomon code with a minimum Hamming distance of 5 over the code symbols and an interleaving mechanism between the two codes, and also a player comprising such a decoding device
10/02/1985EP0156305A2 Digital/analogue converter
10/02/1985EP0156154A1 Method of correcting errors of digital signals in the recording and reproduction of digital signals
10/02/1985EP0155970A1 Apparatus for reproducing audio signal
10/02/1985EP0051308B1 Method and arrangement for formatting a magnetic recording disc
10/01/1985US4545044 Method and apparatus for optically recording and reproducing information
10/01/1985US4545032 Method and apparatus for character code compression and expansion
10/01/1985US4544963 Read signal detection in ternary 3PM magnetic recording
10/01/1985US4544962 Method and apparatus for processing binary data
10/01/1985US4544961 Triplex digital magnetic recording and reproducing system
10/01/1985US4544958 High-speed recording and reproducing of signals
10/01/1985US4544956 Image information registering/retrieving system
09/1985
09/26/1985WO1985004277A1 Magnetic recording/reproducing apparatus
09/25/1985EP0155664A2 Rotary head type PCM recording and reproduction method and system
09/25/1985EP0155529A2 Method of magnetically recording video signals and an apparatus therefor
09/24/1985US4543650 Servo system including velocity and phase servo circuits for digital audio record disc reproducing apparatus
09/24/1985US4543620 Code generating apparatus
09/24/1985US4543617 Recording apparatus
09/24/1985US4543531 Digital data detecting apparatus
09/24/1985CA1194230A1 Control system for an optical data recording apparatus
09/24/1985CA1194222A1 Method and apparatus of recording or reproducing stereophonic information in a magnetic record carrier, magnetic record carrier and amplifier circuit to be used in conjunction with an apparatus for carrying out the method
09/24/1985CA1194220A1 Method for identifying a sound recording and duplicating installation using said method
09/18/1985EP0155101A1 Method and Apparatus for Magnetic Recording and Reproducing
09/18/1985EP0155038A1 Fast decoder for reed-solomon codes which can also be used as an encoder, and recording/playback apparatus comprising such an encoder/decoder
09/17/1985US4542425 Apparatus for reading a record carrier
09/17/1985US4542421 Muting circuit in combination with a tape recorder
09/17/1985US4542419 Method and apparatus for recording and reproducing an information signal comprising a video signal and audio signal
09/17/1985US4542418 Method and apparatus for reproducing an information signal comprised of a video signal and audio signal
09/17/1985US4542417 Video signal magnetic recording and reproducing system
09/17/1985US4542351 PLL for regenerating a synchronizing signal from magnetic storage
09/17/1985CA1193736A1 Apparatus for error correction
09/17/1985CA1193718A1 Playback apparatus for producing still images
09/12/1985WO1985004024A1 A system for recording images and relating sound
09/11/1985EP0154533A2 Apparatus for recording/reprocucing a composite video signal with a rotary recording medium and circuit arrangement therefor
09/11/1985EP0154389A1 Optical recording apparatus
09/11/1985EP0154221A2 Video signal reproducing circuit for a video tape recorder
09/11/1985EP0154086A2 Data recovery circuit
09/10/1985US4541093 Method and apparatus for error correction
09/10/1985US4541092 Method for error correction
09/10/1985US4541091 Code error detection and correction method and apparatus
09/10/1985US4541089 Apparatus for connecting digital data
09/10/1985US4541019 Recording system for recording data on tape in a disk-recording format
09/10/1985US4540947 FM Signal demodulating apparatus
09/10/1985US4540897 Digital modulation signal reading device
09/10/1985CA1193359A1 Horizontal sync pulse control circuit for video tape recorder utilizing pulse code modulation
09/10/1985CA1193358A1 Apparatus for recording and/or reproducing video and audio signals
09/04/1985EP0153665A1 Recording apparatus
09/04/1985EP0153664A1 Playback apparatus for audiovisual disc records
09/04/1985EP0153410A1 Apparatus for recording and reproducing signal
09/03/1985US4539691 Method and apparatus for encoding a binary digital information signal
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