| Patents for G11B 20 - Signal processing not specific to the method of recording or reproducing; Circuits therefor (81,980) |
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| 02/05/1985 | US4498174 Parallel cyclic redundancy checking circuit |
| 02/05/1985 | US4498146 Management of defects in storage media |
| 02/05/1985 | US4498141 High speed correlation circuit and method |
| 02/05/1985 | US4498129 Method and apparatus for normalizing servo-positioning signals |
| 02/05/1985 | US4498111 Method and apparatus for recording or reproducing stereophonic information in a magnetic record carrier |
| 02/05/1985 | US4498107 Document information filing system |
| 02/05/1985 | US4498104 Method and apparatus for concealing errors in a digital television signal |
| 02/05/1985 | CA1182213A1 Safeguarding of data recorded on disk by tunnel erase magnetic head assembly |
| 02/05/1985 | CA1182212A1 Method and apparatus for recording digitized information on a record medium |
| 01/29/1985 | US4497058 Method of error correction |
| 01/29/1985 | US4497055 Data error concealing method and apparatus |
| 01/29/1985 | US4497050 Method and device for writing a data block into a record carrier body |
| 01/29/1985 | US4497004 Picture reproducing apparatus in a helical scanning video tape recorder |
| 01/29/1985 | US4496997 Cue data recording apparatus |
| 01/29/1985 | US4496994 Noise immune data regenerating circuit for video signal reproduction |
| 01/29/1985 | US4496947 Function switching system for an audio/video apparatus |
| 01/29/1985 | US4496934 Encoding and decoding systems for binary data |
| 01/23/1985 | EP0132086A2 Methods of and apparatus for correcting errors in binary data |
| 01/23/1985 | EP0131823A2 Device for the recording and retrieval of binary signals on and from a magnetic data carrier |
| 01/23/1985 | EP0131727A2 Two-module-head, read-after-write bi-directional tape drive |
| 01/22/1985 | US4495623 Digital data storage in video format |
| 01/22/1985 | US4495609 Recording and playback system |
| 01/22/1985 | US4495531 Equalizer circuit for signal waveform reproduced by apparatus for magnetic digital data recording and playback |
| 01/22/1985 | US4495529 Qualifier circuit |
| 01/22/1985 | US4495528 Magnetic reproducing system for a digital signal |
| 01/22/1985 | US4495526 Method and apparatus for identifying sound recordings |
| 01/22/1985 | US4495474 PLL Control circuit for recovery of data from audio disk |
| 01/22/1985 | CA1181519A1 Apparatus for optically reproducing an information signal from a record disk |
| 01/15/1985 | US4494226 Three beam optical memory system |
| 01/15/1985 | US4494158 Electronic apparatus |
| 01/15/1985 | US4494157 Information readout apparatus |
| 01/15/1985 | US4494155 Adaptive redundance in data recording |
| 01/15/1985 | CA1181172A1 Apparatus for writing digital information in a disc- shaped optically readable record carrier |
| 01/15/1985 | CA1181170A1 Method and apparatus for recording and reproducing a digital information signal |
| 01/15/1985 | CA1181169A1 Pcm signal recording system |
| 01/15/1985 | CA1181168A1 Error concealment in digital television signals |
| 01/15/1985 | CA1181166A1 Method and apparatus for detecting an edit point on a record medium |
| 01/15/1985 | CA1181165A1 Digital velocity error compensator |
| 01/15/1985 | CA1181154A1 High frequency digital pcm decoding apparatus |
| 01/09/1985 | EP0130843A2 Recording information on magnetic recording means |
| 01/09/1985 | EP0130613A2 Noise reduction circuit |
| 01/09/1985 | EP0130572A2 Rotary head type PCM recorder |
| 01/09/1985 | EP0130437A2 Video recorder capable of recording one or a plurality of sound signals |
| 01/09/1985 | EP0130426A1 Transmission system for a frequency-modulated audio carrier, especially a video recorder |
| 01/09/1985 | EP0130391A2 A method of, and apparatus for, retrieval of information from an optical medium, and optical media |
| 01/08/1985 | US4492991 Method and apparatus for controlling the stepping feed of an information medium |
| 01/08/1985 | US4492990 Noise reduction system |
| 01/08/1985 | US4492989 Time base correcting apparatus |
| 01/08/1985 | US4492988 Dropout compensation system |
| 01/08/1985 | US4492986 VTR With high-quality audio recording system |
| 01/08/1985 | CA1180812A1 Method and apparatus for speech recognition and reproduction |
| 01/03/1985 | WO1985000069A1 Apparatus for recording and reproducing signal |
| 01/03/1985 | WO1985000068A1 Method and apparatus for recording digital data signal |
| 01/03/1985 | WO1985000067A1 Method of modulating digital data |
| 01/03/1985 | WO1985000066A1 Synchronizing circuit |
| 01/03/1985 | WO1985000065A1 Method of detecting error |
| 01/02/1985 | EP0130091A1 Apparatus for recording and/or reproducing digital information signals |
| 01/02/1985 | EP0129849A2 Error correction method and system |
| 01/02/1985 | EP0129836A2 Circuit for the retrieval of the data contained in binary signals |
| 01/02/1985 | CA1180451A Method for coding an error correcting code |
| 01/02/1985 | CA1180450A Method and apparatus for encoding an nrzi digital signal with low dc component |
| 01/01/1985 | US4491882 For reproducing an information signal |
| 01/01/1985 | US4491881 Calibrated drop-out disk |
| 01/01/1985 | US4491880 Magnetic recording and/or reproducing apparatus |
| 01/01/1985 | US4491877 Cross-talk detector in information-carrying disc player |
| 01/01/1985 | US4491876 Video recording by frequency modulation of luminance and multiplexed chroma components |
| 01/01/1985 | US4491869 Pulse code modulation system suitable for digital recording of broadband analog signals |
| 12/27/1984 | EP0129439A1 High speed data compression and decompression apparatus and method |
| 12/27/1984 | EP0129427A2 Diskette protection |
| 12/27/1984 | EP0129324A2 Error-correction code for digital data on video discs |
| 12/27/1984 | EP0129236A2 Signal conversion apparatus for use in PCM signal processing system |
| 12/27/1984 | EP0129224A1 PCM signal recording/reproducing apparatus |
| 12/27/1984 | EP0129223A2 Digital signal transmission method providing high error correction capability |
| 12/27/1984 | CA1180122A Method of transmitting an audio signal via a transmission channel |
| 12/27/1984 | CA1180111A Reproducing apparatus |
| 12/27/1984 | CA1180110A Automatic threshold tracking system |
| 12/25/1984 | US4490753 Audio signal recording and reproducing circuit |
| 12/25/1984 | US4490751 Apparatus for recording and/or reproducing video and audio signals |
| 12/20/1984 | WO1984005002A1 Multi-function data signal processing method and apparatus |
| 12/20/1984 | WO1984004990A1 A system and method for organizing and managing data stored on an informational disk |
| 12/19/1984 | EP0128752A2 Code reading arrangements |
| 12/19/1984 | EP0128740A1 Pressure regulator |
| 12/19/1984 | EP0128577A2 Rotating head type magnetic record/reproduce apparatus |
| 12/18/1984 | US4489354 Information recording system with recording process monitoring function |
| 12/18/1984 | US4489353 Maximum output level automatic measuring apparatus |
| 12/18/1984 | US4489287 Phase synchronizing circuit for digital data reproduction |
| 12/18/1984 | CA1179769A1 Read signal processing circuit |
| 12/18/1984 | CA1179750A1 Digital synchronising system |
| 12/12/1984 | EP0127732A2 Information recording system |
| 12/12/1984 | EP0127687A1 Method of recording pcm signal |
| 12/11/1984 | US4488278 Coding system for digital audio disc record |
| 12/11/1984 | US4488277 Control system for an optical data recording apparatus |
| 12/11/1984 | US4488183 Copy-proof recording medium and device for adding copy-proof interference signal |
| 12/11/1984 | US4488143 Fixed rate run length limited (RLL) code string generation using length oriented arithmetic code data string expansion and data string recovery using arithmetic code compression of RLL code strings |
| 12/11/1984 | US4488142 Apparatus for encoding unconstrained data onto a (1,7) format with rate 2/3 |
| 12/05/1984 | EP0127382A1 Digital audio scrambling system with error conditioning |
| 12/05/1984 | EP0127311A2 Method of and controller for handling medium defects in a disc drive system |
| 12/05/1984 | EP0127033A1 Method for storing video and audio signals on a video disc |
| 12/04/1984 | US4486882 System for transmitting binary data via a plurality of channels by means of a convolutional code |
| 12/04/1984 | US4486881 Device for real-time correction of errors in data recorded on a magnetic medium |