| Patents for G11B 20 - Signal processing not specific to the method of recording or reproducing; Circuits therefor (81,980) |
|---|
| 04/13/1989 | DE3732336A1 Devices for the open-loop and closed-loop controlling of signals and information which are created, transmitted and/or reproduced by electrical means, electronic means and/or laser |
| 04/12/1989 | EP0311442A2 Magnetic recording and reproducing apparatus and recording method |
| 04/12/1989 | EP0311411A2 Encoding apparatus and methods for error correction |
| 04/12/1989 | EP0311151A1 Apparatus for reproducing digital signals from magnetic tape |
| 04/12/1989 | EP0310769A2 Method and device for processing (dynamically) compressed analog ton signal (ton) signals recorded on memory support and sampled therefrom |
| 04/12/1989 | EP0310756A2 Magnetic disk unit |
| 04/12/1989 | CN1003905B Apparatus for reconstruction of image |
| 04/11/1989 | US4821298 Method and apparatus for reproducing digitized signals |
| 04/11/1989 | US4821254 Information recording and reproducing apparatus which detects deterioration of a medium in each sector before recording |
| 04/11/1989 | US4821253 Optical disk and optical disk apparatus with error correction |
| 04/11/1989 | US4821252 Information recording and/or reproducing apparatus |
| 04/11/1989 | US4821251 Method and apparatus for recording or reproducing information in or from only a sector of an optical disk track without any defect by shifting a light beam to an adjacent track before a defective sector |
| 04/11/1989 | US4821128 Apparatus for recording and/or reproducing a control signal |
| 04/11/1989 | US4821125 Compensation of write current adn delta-V for recording component and radial position |
| 04/11/1989 | US4820992 Clock signal multiplexers |
| 04/06/1989 | WO1989003082A1 Method of storing data |
| 04/05/1989 | EP0310442A2 Digital data reproducing apparatus |
| 04/05/1989 | EP0310373A2 Information recording apparatus |
| 04/05/1989 | EP0310356A2 Data reproducing apparatus |
| 04/05/1989 | EP0310274A2 Digital signal processing apparatus |
| 04/05/1989 | EP0310089A2 Data transmission method for interleaved data |
| 04/05/1989 | EP0309701A1 CD player with a memory |
| 04/05/1989 | EP0309639A2 A method of automatically evaluating the quality of an audio-video program recorded on a recording medium |
| 04/05/1989 | CN1003816B Magnetic recording/reproduction apparatus |
| 04/04/1989 | US4819222 Binary encoding method for data read from optical record and device therefor |
| 04/04/1989 | US4819218 Quasi-constant linear-velocity disk having corresponding radii of adjacent annular zones related by a rational number for distributing prerecorded indicia to form a coherent write clock signal |
| 04/04/1989 | US4819103 Apparatus for reproducing data from magnetic recording medium |
| 04/04/1989 | US4819097 Audio signal recording/reproducing system for use in time-lapse video tape recorder |
| 04/04/1989 | US4819092 Apparatus for writing signal density information on a magnetic medium |
| 04/04/1989 | US4819090 Digital signal reproducing apparatus |
| 04/04/1989 | US4819089 Digital video recorder having data distribution among four heads |
| 04/04/1989 | US4819088 Magnetic recording and reproducing system |
| 04/04/1989 | US4818950 Low jitter phase-locked loop |
| 04/04/1989 | CA1252201A1 Method for recording of pcm signals |
| 04/04/1989 | CA1252199A1 Digital information signal encoding method |
| 04/04/1989 | CA1252198A1 Apparatus for correcting a time base error and for compensating dropouts included in a reproduced video signal |
| 03/29/1989 | EP0309287A2 Data reproducing apparatus |
| 03/29/1989 | EP0309150A2 Data reproducing apparatus |
| 03/29/1989 | EP0308922A2 Magnetic tape memory apparatus using helical scan scheme |
| 03/28/1989 | US4817077 Devices for detecting defects of disc-shaped record media |
| 03/28/1989 | US4817035 Method of recording in a disk memory and disk memory system |
| 03/28/1989 | US4816940 Rotary head recording and reproducing apparatus with plural modes and search capability |
| 03/28/1989 | US4816928 Apparatus for recording reproducing a still image and corresponding audio information in respective tracks on a disk with the audio compressed on segments of a track |
| 03/28/1989 | US4816926 Information signal recording apparatus |
| 03/28/1989 | US4816829 Method of and apparatus for converting digital data between data formats |
| 03/28/1989 | CA1251837A1 Error detection and concealment using predicted signal values |
| 03/23/1989 | WO1989002643A1 Write precompensation techniques for magnetic recording |
| 03/22/1989 | EP0308148A2 Apparatus for recording a digital signal |
| 03/22/1989 | EP0307586A1 An improved automatic head position tracking servo for a rotary head magnetic tape recording and reproducing apparatus |
| 03/21/1989 | US4815142 Noise reduction device in an electroacoustic system |
| 03/21/1989 | US4815131 Digital audio channel selection circuit |
| 03/21/1989 | US4815068 Audio encoder for use with more than one decoder each having different characteristics |
| 03/21/1989 | US4815062 Write-once data writing system for optical recording medium |
| 03/21/1989 | US4815061 Reproducing device for frequency modulated signals |
| 03/21/1989 | US4815026 Slave-type interface circuit |
| 03/21/1989 | US4814904 Method of controlling erasing following format writing in a magnetic disc apparatus |
| 03/21/1989 | US4814903 Alternate storage areas in magnetooptical media |
| 03/21/1989 | US4814902 Apparatus for recording and/or reproducing with video and multiple audio rotary heads |
| 03/21/1989 | US4814725 Phase lock circuit for compensation for bit frequency variations |
| 03/21/1989 | CA1251573A1 Signal selecting circuit |
| 03/21/1989 | CA1251559A1 Method and apparatus for identifying recorded information segments on a record medium |
| 03/21/1989 | CA1251558A1 Method of magnetically recording video signals and an apparatus therefor |
| 03/15/1989 | EP0307377A1 Apparatus for avoiding spectrum spreading when switching a transmitter on and off |
| 03/15/1989 | EP0306964A1 Recording apparatus |
| 03/15/1989 | EP0166749B1 Phase regulation circuit |
| 03/15/1989 | CN1003618B Method and device for recording and replaying the digital signal with the fixed head |
| 03/15/1989 | CN1003617B Tracking control device for recording and/or reproducing signal |
| 03/14/1989 | US4813044 Method and apparatus for detecting transient errors |
| 03/14/1989 | US4812987 Wave shaping circuit |
| 03/14/1989 | US4812925 Method and arrangement for drop-out compensation during the reproduction of magnetically recorded signals |
| 03/14/1989 | US4812924 Method and apparatus for reproducing or recording a PCM signal and sub data concerning the PCM signal in a paired format |
| 03/14/1989 | US4812921 Sound field expansion system for a video tape recorder |
| 03/14/1989 | US4812906 Circuit arrangement for frequency division |
| 03/14/1989 | US4812632 Portable magnetic card reading and writing apparatus with verification of constant and user supplied data |
| 03/14/1989 | CA1251280A1 Method of transmitting audio information and additional information in digital form |
| 03/09/1989 | WO1989002190A1 Automatic gain control system |
| 03/09/1989 | DE3729129A1 Method and circuit arrangement for reducing the audibility of defects in an audio signal |
| 03/08/1989 | EP0306196A2 Method and apparatus for correcting errors in stored data |
| 03/08/1989 | EP0306151A2 Fast speed reproduction system for a digital disc |
| 03/08/1989 | EP0305722A1 An improved automatic head position tracking servo for a rotary head magnetic tape recording and reproducing apparatus |
| 03/08/1989 | EP0305523A1 Optical card recording apparatus |
| 03/08/1989 | EP0305472A1 Error correction of digital image data by means of image redundancy |
| 03/08/1989 | CN1031618A Recording and replaying system for motion status |
| 03/07/1989 | US4811370 Digital muting circuit |
| 03/07/1989 | US4811361 Method and apparatus for transmission of digital data |
| 03/07/1989 | US4811325 High-speed reproduction facility for audio programs |
| 03/07/1989 | US4811321 Information recording medium |
| 03/07/1989 | US4811317 Clock resynchronization after a track jump |
| 03/07/1989 | US4811126 Recording/reproducing system for a magnetic recording medium including synchronization detecting circuit |
| 03/07/1989 | US4811125 Information recording/regenerating circuit for a memory unit |
| 03/07/1989 | US4811124 Defect skipping mechanism for disk drives |
| 03/07/1989 | US4811123 Apparatus for reproducing digital data |
| 03/07/1989 | US4811121 Magnetic recording and reproducing system using preceding and lagging groups of rotary heads to permit coincident timing for reproduced video and audio signals |
| 03/07/1989 | US4811120 Information signal recording and/or reproducing apparatus |
| 03/01/1989 | EP0304791A1 Phase-locked loop having elongated time for charge and discharge |
| 03/01/1989 | EP0304634A2 An improved automatic head position tracking servo for a rotary head magnetic tape recording and reproducing apparatus |
| 03/01/1989 | EP0304633A2 An improved automatic head position tracking servo for a rotary head magnetic tape recording and reproducing apparatus |
| 02/28/1989 | US4809304 Method of extracting a synchronous clock signal from a single- or double-density coded signal, and apparatus for performing the method |
| 02/28/1989 | US4809118 PCM helical-scan magnetic record/playback systems |
| 02/28/1989 | US4809097 Magnetic recording and reproducing apparatus |