| Patents for G11B 20 - Signal processing not specific to the method of recording or reproducing; Circuits therefor (81,980) |
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| 01/14/1987 | EP0208536A2 Apparatus for recording and/or reproducing an additional information signal |
| 01/14/1987 | CN85105499A Television signal regeneration device having noise reducing circuit |
| 01/13/1987 | US4637050 Method and apparatus for suppressing interference in a signal, in particular an audio signal |
| 01/13/1987 | US4637036 Circuit arrangement for a data acquisition circuit of a PCM processor and a method for improving waveform of PCM signal eye pattern |
| 01/13/1987 | US4637023 Digital data error correction method and apparatus |
| 01/13/1987 | US4637006 Apparatus for producing digital information from a transmission medium |
| 01/13/1987 | US4637003 Amplitude modulated high frequency signal detection device |
| 01/13/1987 | US4636877 Apparatus for reproducing multiple track digital signals and including timing control of read/write operations |
| 01/13/1987 | US4636876 Audio digital recording and playback system |
| 01/13/1987 | US4636875 Playback device for a digital signal recorded by a plurality of heads |
| 01/13/1987 | US4636873 Method and apparatus for recording and reproducing an information signal with a larger tape wrapping angle |
| 01/13/1987 | US4636745 Signal waveform equalizing circuitry |
| 01/13/1987 | US4636739 Circuit for reducing the occurrence of spurious signals on an output of an electronic circuit when the circuit power supply is switched on and off |
| 01/10/1987 | CN85101642A System for recording and/or reproducing digical data |
| 01/10/1987 | CN85101048A Digital data converting method and apparatus thereof |
| 01/07/1987 | EP0207762A2 Method of formatting storage medium and drive unit therefor |
| 01/07/1987 | CN86104535A 误差检测电路 Error detecting circuit |
| 01/07/1987 | CN85104843A Method and arrangement for detecting error signals in a disk drive, and a magnetic test disk therefor |
| 01/07/1987 | CN85104837A Signal treatment device for tv gramophone |
| 01/06/1987 | US4635277 Digital clock recovery circuit apparatus |
| 01/06/1987 | US4635142 Amplitude sensor with adaptive threshold generation |
| 01/06/1987 | US4635141 Method and apparatus for storing data on magnetic or optical media |
| 01/06/1987 | US4635140 Digital recording/playback system with limited frequency range |
| 01/06/1987 | US4635097 Method and system for processing digital video signal incorporating phase-correction feature |
| 01/06/1987 | US4634896 Method and apparatus for qualifying valid data peaks in a read/write channel |
| 12/31/1986 | CN85104931A Picture reproducer |
| 12/30/1986 | US4633488 Phase-locked loop for MFM data recording |
| 12/30/1986 | US4633471 Error detection and correction in an optical storage system |
| 12/30/1986 | US4633343 Method of and apparatus for writing data on a recording medium and the medium so produced |
| 12/30/1986 | US4633340 Magnetic recording and reproducing apparatus with means for increasing amount of information to be stored in a magnetic memory disk |
| 12/30/1986 | US4633336 Magnetic recording apparatus |
| 12/30/1986 | US4633333 Detection of instantaneous speed variations in a tape drive |
| 12/30/1986 | US4633331 Information signal delay system utilizing random access memory |
| 12/30/1986 | US4633329 Information signal recording medium and reproducing apparatus therefor |
| 12/30/1986 | EP0206766A1 Detection of instantaneous speed variations in a tape drive |
| 12/30/1986 | EP0206732A2 Circuit arrangements for modifying dynamic range using variable combining techniques |
| 12/30/1986 | EP0206569A2 Display apparatus for multi-channel PCM recorder |
| 12/30/1986 | EP0206456A2 Automatic phase correction of stereo tape replay apparatus |
| 12/30/1986 | EP0206255A2 PCM audio signal recording and/or reproducing apparatus |
| 12/30/1986 | EP0206221A2 Apparatus for recording and reproducing digital signal |
| 12/30/1986 | EP0206203A2 Recording and reproducing apparatus using a modulator/demodulator for Offset Quadrature Differential Phase-Shift Keying |
| 12/30/1986 | EP0077641B1 Method for improved focusing control in an optical memory system |
| 12/24/1986 | CN85104659A Apparatus adjusting for resonance frequency and q factor of magnetic head |
| 12/23/1986 | US4631723 Mass storage disk drive defective media handling |
| 12/23/1986 | US4631714 Apparatus for furnishing data signals from an optically readable record carrier at the same frequency as the associated subcode signals |
| 12/23/1986 | US4631600 Time-axis correcting circuit for recorded data reproducing device |
| 12/23/1986 | US4631593 Still picture recording apparatus and a solid-state image pickup device suitable for this apparatus |
| 12/23/1986 | CA1215780A1 Digital signal processing circuit |
| 12/23/1986 | CA1215777A1 Apparatus guaranteeing that a controller in a disk drive system receives at least some data from an invalid track sector |
| 12/23/1986 | CA1215776A1 Apparatus for suspending a reserve operation in a disk drive |
| 12/17/1986 | EP0205305A2 Data transmission and detection method |
| 12/17/1986 | EP0205200A1 Method for transmitting audio and additional information in digital form |
| 12/17/1986 | EP0205181A2 PCM audio signal recording and/or reproducing apparatus |
| 12/17/1986 | CN86102702A Reproducing devices for recording information |
| 12/17/1986 | CN85106794A Method and apparatus for converting a run length limited code |
| 12/16/1986 | US4630272 Encoding method for error correction |
| 12/16/1986 | US4630269 Methods for diagnosing malfunctions in a disk drive |
| 12/16/1986 | US4630231 Control program signal demodulating device |
| 12/16/1986 | US4630144 Tracking control apparatus |
| 12/16/1986 | US4630143 Magnetic recording and reproducing device |
| 12/16/1986 | US4630140 Data recording/reproducing apparatus |
| 12/16/1986 | US4630139 Data synchronization |
| 12/16/1986 | US4630134 System for recording and reproducing multiplex information |
| 12/10/1986 | EP0204635A1 Method for transmitting digital information in word blocks |
| 12/10/1986 | EP0204578A2 An information signal delay system |
| 12/10/1986 | EP0204154A2 Software protection and identification system |
| 12/10/1986 | CN85104394A Pulse encoding modulation type record regeneration device |
| 12/10/1986 | CN85104136A Magnetic recording playback unit |
| 12/09/1986 | US4628497 Apparatus for reproducing information from an optically readable record carrier |
| 12/09/1986 | US4628374 Magnetic recording system and method |
| 12/09/1986 | US4628373 Rotating head type magnetic record/reproduce apparatus |
| 12/09/1986 | US4628372 Method and apparatus for identifying recorded information segments on a record medium |
| 12/09/1986 | US4628371 Drop-out compensator for a recorded signal playback system |
| 12/09/1986 | US4628297 Code modulation system |
| 12/09/1986 | US4628282 Clock generator for digital demodulators |
| 12/09/1986 | CA1215175A1 Optical data retrieval system using multi-spectral light sources |
| 12/09/1986 | CA1215174A1 Rotary head type pcm recorder |
| 12/09/1986 | CA1214998A1 Digitally processed gain control device |
| 12/04/1986 | WO1986007181A1 Method and apparatus for processing data |
| 12/03/1986 | EP0203797A2 Apparatus for recording and/or reproducing a digital signal |
| 12/03/1986 | EP0203773A2 Apparatus for decoding error correcting code |
| 12/03/1986 | EP0203592A2 Synchronizing signal detecting apparatus |
| 12/03/1986 | EP0203562A2 An information recording and reproducing apparatus |
| 12/02/1986 | US4626935 Device for coupling cassette tape recorder to microcomputer |
| 12/02/1986 | US4626934 Cue signal recording circuit for magnetic recording and reproducing apparatus |
| 12/02/1986 | US4626933 Method and apparatus for qualifying data |
| 12/02/1986 | US4626930 Rotary recording medium having different video signals recorded on mutually adjacent tracks and reproducing apparatus therefor |
| 12/02/1986 | US4626912 Sequential data block address processing circuits |
| 12/02/1986 | US4626911 Digital data recovery circuit |
| 12/02/1986 | US4626826 Method and apparatus for encoding and decoding an NRZI digital signal with low DC component and minimum low frequency components |
| 12/02/1986 | CA1214870A1 Write data compensating circuit in magnetic recorder |
| 12/02/1986 | CA1214869A1 Apparatus for reproducing recorded data |
| 11/27/1986 | EP0110901A4 Data synchronization. |
| 11/26/1986 | EP0202948A2 Recording system and apparatus |
| 11/26/1986 | EP0202945A2 Recording method and apparatus |
| 11/26/1986 | EP0202773A1 Binary encoding method for data read from optical record and device therefor |
| 11/26/1986 | EP0202683A2 Video-signal time-axis correction apparatus |
| 11/26/1986 | EP0202571A2 Interleaving circuit |
| 11/26/1986 | CN86103579A Disk arrangement system |
| 11/26/1986 | CN86103308A Synchronizing signal detecting circuit |