| Patents for G11B 20 - Signal processing not specific to the method of recording or reproducing; Circuits therefor (81,980) |
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| 09/03/1985 | US4539666 Apparatus for controlling rotation of a record disk at a constant linear velocity |
| 09/03/1985 | US4539605 PCM Tape recording and reproducing apparatus having a dropout-immune data recording format |
| 09/03/1985 | US4539602 Time axis correction device for multiplex information-carrying signal obtained from recording medium |
| 09/03/1985 | US4539526 Adaptive signal weighting system |
| 09/03/1985 | US4538644 Pressure regulator |
| 09/03/1985 | CA1193025A1 Time base correcting apparatus |
| 09/03/1985 | CA1193016A1 Method and apparatus for n-to-m encoding |
| 09/03/1985 | CA1193015A1 Method and apparatus for encoding a digital signal with low dc component |
| 09/03/1985 | CA1193014A1 Direct digital to digital sampling rate conversion method and apparatus |
| 09/03/1985 | CA1193004A1 Method for recording digital signals on multiple tracks of a recording tape |
| 09/03/1985 | CA1193003A1 Vtr with high-quality audio recording system |
| 08/28/1985 | EP0153226A1 Process for producing numerical recordings, and articles produced by that process |
| 08/28/1985 | EP0152922A2 Method and system for processing digital video signal incorporating phase-correction feature |
| 08/28/1985 | EP0152535A2 Method and apparatus for encoding an information storage medium with audio test signals |
| 08/28/1985 | EP0044311B1 Clock derivation circuit for double frequency encoded serial digital data |
| 08/27/1985 | US4538257 Adaptively stabilized recording for direct read after write optical memories |
| 08/27/1985 | US4538189 (1,8) Data encoder/decoder |
| 08/21/1985 | EP0152284A2 Noise reduction in optical sound track systems |
| 08/21/1985 | EP0152245A2 Optical disk control apparatus |
| 08/21/1985 | EP0152242A1 Video tape recorder |
| 08/21/1985 | EP0152142A2 Method for reproducing information from an optically readable record carrier and apparatus for use in said method |
| 08/21/1985 | EP0151789A2 Storing method for a memory device installed in a telephone installation, in particular a telephone exchange |
| 08/20/1985 | US4536866 Information retrieval system and apparatus |
| 08/20/1985 | US4536864 Apparatus for reading an optically coded disc-shaped record carrier |
| 08/20/1985 | US4536863 Method and apparatus for recovering information from a videodisc |
| 08/20/1985 | US4536836 Detection of sequential data stream |
| 08/20/1985 | US4536742 Method of encoding a stream of data bits, device for carring out the method, and device for decoding a stream of data bits |
| 08/20/1985 | US4536740 Doublet detector for data recording or transmission |
| 08/20/1985 | CA1192309A1 Method and apparatus for encoding and decoding a binary digital information signal |
| 08/20/1985 | CA1192306A1 Optical disc player |
| 08/20/1985 | CA1192305A1 Servo system including velocity and phase servo circuits for digital audio record disc reproducing apparatus |
| 08/20/1985 | CA1192302A1 Signal recording and/or reproducing technique |
| 08/14/1985 | EP0151468A1 Signal storage system |
| 08/14/1985 | EP0151459A2 Code modulation system |
| 08/13/1985 | US4535471 Compression/expansion device |
| 08/13/1985 | US4535435 Capacitance detector for video disk |
| 08/13/1985 | US4535371 Recording channel with signal controlled integrated analog circuits |
| 08/13/1985 | US4535368 Wow and flutter control apparatus for audio and video playback systems |
| 08/13/1985 | US4535366 Universal video data playback |
| 08/13/1985 | CA1191962A1 Parallel cyclic redundancy checking circuit |
| 08/13/1985 | CA1191941A1 Video recording by frequency modulation of luminance and multiplexed chroma components |
| 08/07/1985 | EP0150992A2 Methods of and apparatus for recording digital signals |
| 08/07/1985 | EP0150968A1 Cue signal recording circuit for magnetic recording and reproducing apparatus |
| 08/07/1985 | EP0150811A2 Method and apparatus for recording digital signals |
| 08/06/1985 | US4534044 Diskette read data recovery system |
| 08/06/1985 | US4534037 Method and apparatus for scrambled pulse-code modulation transmission or recording |
| 08/06/1985 | US4534031 Coded data on a record carrier and method for encoding same |
| 08/06/1985 | US4533965 Magnetic read/write circuit |
| 08/06/1985 | US4533964 Multi-track digital recording and playback system |
| 08/06/1985 | US4533963 Video tape recorder for re-recording audio signals |
| 08/06/1985 | US4533949 Subscription television system |
| 08/06/1985 | CA1191604A1 Method and apparatus for recording and reproducing an information signal comprised of a video signal and an audio signal |
| 08/06/1985 | CA1191603A1 Verification of recorded messages |
| 08/06/1985 | CA1191602A1 Disc reproducing apparatus |
| 08/06/1985 | CA1191600A1 Digital television apparatus |
| 08/06/1985 | CA1191599A1 Video tape recorder |
| 08/06/1985 | CA1191598A1 Digital video recorder |
| 08/06/1985 | CA1191595A1 Method and apparatus for recording and reproducing an information signal comprised of a video signal and audio signal |
| 08/06/1985 | CA1191559A1 Circuit for detecting existance of information signal |
| 08/01/1985 | WO1985003400A1 Rotary head type magnetic image recorder/reproducer |
| 08/01/1985 | WO1985003371A1 Circuit for calculating finite fields |
| 07/31/1985 | EP0150083A2 Apparatus for encoding n-bit information words into m-bit code words, apparatus for decoding m-bit code words into n-bit information words |
| 07/31/1985 | EP0150082A2 Method of transmitting information, encoding device for use in the method, and decoding device for use in the method |
| 07/31/1985 | EP0149755A2 Optical information recording and reproducing apparatus |
| 07/31/1985 | EP0045749B1 Selfsynchronizing clock derivation circuit for double frequency encoded digital data |
| 07/30/1985 | US4532629 Apparatus for error correction |
| 07/30/1985 | US4532621 Device and method for recording information on a disk |
| 07/30/1985 | US4532604 Predistortion circuit |
| 07/30/1985 | US4532559 Apparatus for decoding phase encoded data |
| 07/30/1985 | US4532557 Synchronous programmable parallel-to-serial data converter and a programmable longitudinal time code generator utilizing the converter |
| 07/30/1985 | US4532556 Time-base correction of audio signals in video tape recorders |
| 07/30/1985 | US4532541 Clocked analog delay circuit |
| 07/24/1985 | EP0149245A2 PCM data recording system |
| 07/24/1985 | EP0149244A2 Video signal recording and reproducing apparatus |
| 07/24/1985 | EP0149087A2 Circuit for time compression or expansion of a video signal |
| 07/24/1985 | EP0149015A2 Method and apparatus for copy-protecting magnetic storage media |
| 07/23/1985 | US4531205 Optoelectronic method of reading data on a magnetic medium and circuit for performing said method |
| 07/23/1985 | US4531167 Servowriter system for magnetic disc drives |
| 07/23/1985 | US4531165 Automatic amplitude equalizer based upon monitoring of channel power loss |
| 07/23/1985 | US4531161 Sound recording system for electronic still camera |
| 07/23/1985 | US4531155 Circuit for independently adjusting frequency deviation of a VCO |
| 07/23/1985 | US4531153 Method and apparatus for encoding and decoding a binary digital information signal |
| 07/18/1985 | WO1985003160A1 Method and device fr suppressing the interference in a signal, particularly an audio signal |
| 07/17/1985 | EP0148767A2 Wide band tape recorder interface for recording digital image data in real time |
| 07/17/1985 | EP0148413A1 Method and apparatus for reproducing digitized signals, transmitted as digital signals in pulse form |
| 07/16/1985 | US4530073 Disc reproducing apparatus |
| 07/16/1985 | US4530048 VCR backup system |
| 07/16/1985 | US4530020 Self-timed runout correction pattern |
| 07/16/1985 | CA1190653A1 Digital waveform conditioning circuit |
| 07/16/1985 | CA1190642A1 Information signal recording and reproducing apparatus |
| 07/16/1985 | CA1190641A1 Method for editing of pcm signal and apparatus thereof |
| 07/16/1985 | CA1190640A1 Video signal processing circuit |
| 07/10/1985 | EP0148077A2 Method of writing information on a recording medium |
| 07/10/1985 | EP0147963A2 Magnetic recording |
| 07/10/1985 | EP0147773A2 A method of making linearity standard magnetic tape |
| 07/10/1985 | EP0147550A1 Equalization circuits for magnetic recording channels |
| 07/09/1985 | US4528655 Apparatus for detecting variation of electrostatic capacitance |
| 07/09/1985 | US4528602 Electrical calibration arrangements |
| 07/09/1985 | US4528601 Digital signal reproducing apparatus |
| 07/09/1985 | US4528588 Method and apparatus for marking the information content of an information carrying signal |