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)
07/1985
07/09/1985US4527862 Liquid crystal display keyboard
07/03/1985EP0147090A2 Optical recording method; optical medium and method for reading said medium
07/03/1985EP0147065A2 Optical recording medium and recording and reproducing apparatus therefor
07/03/1985EP0147055A2 A data disc system for a computed tomography X-ray scanner
07/03/1985EP0146988A1 Method of correcting erroneous values of samples of an equidistantly sampled signal and device for carrying out the method
07/03/1985EP0146773A1 Apparatus for recording a digital data
07/03/1985EP0146639A1 Method and apparatus for recording digital data signal
07/03/1985EP0146637A1 Method of detecting error
07/03/1985EP0146636A1 Synchronizing circuit
07/02/1985US4527273 Information processing system
07/02/1985US4527269 Encoder verifier
07/02/1985US4527207 Tape speed control for producing a master tape carrying a digital signal
07/02/1985CA1189965A1 Cue data recording apparatus
07/02/1985CA1189964A2 System for recording and playing back continuous-play and stop-motion signals
06/1985
06/26/1985EP0146257A1 Machine readable markers for cartesian information storage media
06/26/1985EP0146109A2 Optical information recording apparatus
06/26/1985EP0146041A2 Data transfer system having a plurality of magnetic disk drives
06/26/1985EP0145751A1 A system and method for organizing and managing data stored on an informational disk
06/25/1985US4525840 Method and apparatus for maintaining word synchronization after a synchronizing word dropout in reproduction of recorded digitally encoded signals
06/25/1985US4525839 Method of controlling storage device
06/25/1985US4525838 Multibyte error correcting system involving a two-level code structure
06/25/1985US4525822 Optical data recordation and reproduction system
06/25/1985US4525820 Function selecting method and system for an audio/video recording and reproducing system
06/25/1985US4525801 Disk storage controller
06/25/1985US4525754 System and method for synchronization of rotary head magnetic recording/reproducing devices
06/25/1985US4525753 Circuit arrangement and method for magnetic recording/reproducing
06/25/1985US4525752 Apparatus for recording and reproducing a digital signal
06/25/1985US4525751 Disc record with tapered groove
06/25/1985CA1189577A1 Data tracking clock recovery system using digitally controlled oscillator
06/20/1985WO1985002732A1 Data compression method and apparatus
06/20/1985WO1985002731A1 Phase regulation circuit
06/20/1985WO1985002707A1 Disk reproducing apparatus
06/20/1985WO1985002529A1 Data compression system and method for processing digital sample signals
06/19/1985EP0145279A2 Optical data storage
06/19/1985EP0144933A2 Lens mounting
06/19/1985EP0144910A2 Apparatus for multiplex recording and reproduction of audio and video signals
06/19/1985EP0144831A2 Apparatus arrangement for the determination of errors on disk-shaped record carriers
06/19/1985EP0144813A1 Recording and reproducing apparatus
06/19/1985EP0144719A1 A video signal recording apparatus
06/19/1985EP0144449A1 Method and apparatus of modulating digital data and of demodulating
06/19/1985EP0144431A1 Error-correcting apparatus
06/19/1985EP0144352A1 Sequence versatile video system.
06/18/1985US4524444 Analyzing the signal transfer characteristics of a signal processing unit
06/18/1985CA1189184A1 Method for the detection of authenticity in a data carrier and apparatus for applying said method
06/11/1985US4523304 Optical data recording and reproducing apparatus
06/11/1985US4523237 Method and apparatus for recording and reproducing an analog signal
06/11/1985US4523181 Method and apparatus for producing a binary information for an information transmission
06/11/1985CA1188801A1 Modulation system for optical recording
06/11/1985CA1188798A1 Circuit arrangement for converting an information signal into a rectangular signal
06/06/1985WO1985002481A1 Disk-shaped recording medium and apparatus for reproducing the same
06/05/1985EP0143553A1 Methods of and apparatus for digital data conversion
06/05/1985EP0143474A1 Apparatus for reading an optically readable record carrier
06/04/1985US4521884 Method and apparatus for error data feedback in a diskette drive
06/04/1985US4521817 Circuit arrangement for magnetic recording apparatus having a multi-track head
06/04/1985US4521816 Magnetic recording method for digital signal
06/04/1985CA1188385A1 Method and apparatus for selectively compensating burst errors of variable length in successive digital data words
06/04/1985CA1188384A1 Noise reduction circuit
05/1985
05/29/1985EP0143005A2 Digital data converting methods and apparatus
05/29/1985EP0142626A1 Apparatus for recording of digital data
05/29/1985EP0142620A2 Method of recording PCM audio transmission signals with signal error compensation
05/29/1985EP0142616A1 Method and apparatus for editing and for replay of digital audio data recorded on a magnetic tape
05/29/1985EP0142613A1 Method and apparatus for recording and replay of digital audio data
05/28/1985US4520408 Clock signal synchronization apparatus and method for decoding self-clocking encoded data
05/28/1985US4520407 Recording and/or reproducing apparatus for a multi-channel digital signal
05/28/1985US4520394 Horizontal scanning frequency multiplying circuit
05/28/1985US4520346 Method and apparatus for encoding an NRZI digital signal with low DC component
05/28/1985CA1188000A1 Pcm signal processor
05/28/1985CA1187999A1 Pcm signal processor
05/28/1985CA1187998A1 Pcm signal processor
05/28/1985CA1187982A1 Pcm signal processing circuit
05/23/1985WO1985002293A1 Antipiracy device and method for cinematographic and video carriers
05/23/1985WO1985002290A1 Optical data storage
05/23/1985WO1985002284A1 Machine readable markers for cartesian information storage media
05/22/1985EP0142187A1 Arrangement for reproducing video signals
05/21/1985US4519058 Optical disc player
05/21/1985US4519057 Digital audio disc player including apparatus for finding the beginning of a recorded audio signal
05/21/1985US4519054 Method for formatting optically encoded digital data on a substrate and the data record carrier formed thereby
05/21/1985US4519011 Power control circuit
05/21/1985US4519008 Method of recording and reproducing visual information in audio recording medium and audio recording medium recorded with visual information
05/21/1985US4519004 Extended play videodisc
05/21/1985CA1187615A1 Disk format for secondary storage system
05/15/1985EP0141424A2 Audio signal transmission system having noise reduction means
05/15/1985EP0141028A2 Digital apparatus for magnetic media data recovery system
05/15/1985EP0140957A1 Audio digital recording and playback system.
05/14/1985US4517611 Video recording system
05/14/1985US4517610 Multichannel signal recovery circuit
05/14/1985US4517609 Video signal recording apparatus
05/14/1985US4517552 Method and apparatus for N-to-M encoding
05/09/1985WO1985002074A1 Pulse width decoder for double frequency encoded serial data
05/08/1985EP0140706A2 Jitter-immune time expansion for time-compressed line-sequential video signals
05/08/1985EP0140703A2 Pulse width decoder for double frequency encoded serial data
05/08/1985EP0140696A2 Data filing system
05/08/1985EP0140456A1 Data processing system in which unreliable words in the memory are replaced by an unreliability indicator
05/08/1985EP0140381A2 Decoding method and system for doubly-encoded reed-solomon codes
05/08/1985EP0140192A2 Apparatus for detecting a drop-out in a magnetic recording/reproducing apparatus
05/08/1985EP0139925A1 Automatic amplitude equalizer
05/08/1985EP0139757A1 Apparatus for reproducing data signal
05/07/1985US4516235 In a data processing system
05/07/1985US4516232 Video disc player with compensation for stylus holder mechanical resonance
05/07/1985US4516219 Address designating method of memory and apparatus therefor
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