| Patents for G11B 27 - Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel (59,746) |
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| 02/07/1989 | US4803643 System and method for creating memory-retained, formatted pages of text, tabulation, and graphic data |
| 02/07/1989 | US4803614 System for retrieving distributed information in a data base |
| 02/02/1989 | DE3822388A1 Plattenfoermiges aufzeichnungsmedium mit festwertspeicher-spuren, beschreibbaren bereichen und mit antriebseinrichtung Plattenfoermiges recording medium with a fixed value memory-traces, writable areas and with power supply device |
| 02/01/1989 | EP0301909A2 Apparatus for rapidly accessing a large data base |
| 02/01/1989 | EP0301809A1 Video disc players |
| 02/01/1989 | EP0146773B1 Apparatus for recording a digital data |
| 02/01/1989 | CN1030840A 光盘 CD |
| 01/31/1989 | US4802192 Circuit for detecting synchronizing code |
| 01/31/1989 | US4802159 Information recording disc and information signal recording apparatus therefor |
| 01/31/1989 | US4802154 High density codes for optical recording |
| 01/31/1989 | US4802152 Compact disc drive apparatus having an interface for transferring data and commands to and from a host controller |
| 01/31/1989 | US4802038 PCM audio signal recording and/or reproducing apparatus with program timer and series and parallel formats |
| 01/31/1989 | US4802023 System for reading and writing vertical interval time code |
| 01/31/1989 | US4802019 Picture processing system for selective display |
| 01/31/1989 | US4802018 Electronic marking apparatus for identifying a selected image from a plurality of electronically stored images |
| 01/25/1989 | EP0300581A2 Amorphous pip protection apparatus for use in an optical recording apparatus |
| 01/25/1989 | EP0140696B1 Data filing system |
| 01/24/1989 | US4800549 Method and apparatus for seeking target address with error check code |
| 01/24/1989 | US4800548 Optical recording and reproducing apparatus with abnormality detector |
| 01/24/1989 | US4800515 Circuit for operating finite fields |
| 01/24/1989 | US4800452 Disk recording and reproducing head system having track seeking for faulty addresses |
| 01/24/1989 | US4800445 Videodisk player |
| 01/19/1989 | DE3722857A1 Keyboard for entering commands |
| 01/18/1989 | EP0299818A1 Method for coding information data for transmission in video norms, video disk for carrying out this method and interface of operating such a video disk |
| 01/18/1989 | EP0299742A2 Optical disk |
| 01/18/1989 | EP0299573A1 System for recording and/or reading an information signal, record carrier and recording and/or read apparatus for use in such a system, and method of and apparatus for manufacturing such a record carrier |
| 01/18/1989 | EP0133790B1 Disc playback apparatus |
| 01/17/1989 | US4799221 Apparatus for reproducing a digital signal |
| 01/17/1989 | US4799207 Apparatus and method for maintaining progression of recovery of recorded information |
| 01/17/1989 | US4799113 Apparatus for processing digital data |
| 01/17/1989 | US4799111 Video signal recording and/or reproducing apparatus with a function for re-recording a search control-index signal |
| 01/17/1989 | CA1249056A1 Optical recording system |
| 01/17/1989 | CA1249054A1 Video cassette play counting, storing and reading system |
| 01/12/1989 | DE3820835A1 Fully-digital hifi-video system - uses integrated service data network for transmission of digitally coded sound and video information |
| 01/12/1989 | DE3818881A1 Verfahren und anordnung zur verarbeitung von informationsdaten Method and arrangement for processing of information data |
| 01/10/1989 | US4797754 Method for writing servo pattern in magnetic disk unit |
| 01/10/1989 | US4797753 Monitor for visually indicating wear on record media |
| 01/10/1989 | US4797752 Information storage carrier and method for storing duplicate information |
| 01/10/1989 | CA1248627A1 Altering facial displays in cinematic works |
| 01/04/1989 | EP0297809A2 Methods of and apparatuses for recording and/or reproducing digital data |
| 01/03/1989 | US4796249 System to ascertain the scanning speed of audio disks with contactless scanning |
| 01/03/1989 | US4796247 Compact disc (CD) player and method of compensating for tracking jumps |
| 01/03/1989 | US4796223 Micro-computer control for a video machine |
| 01/03/1989 | US4796105 Helical scan type magnetic recording and reproducing apparatus for recording and reproducing digital signal |
| 01/03/1989 | US4796103 Control pulse recording circuit for dual tape speed recording and reproducing apparatuses using two pairs of heads selectively for selected speed including recording delayed control pulses |
| 01/03/1989 | US4796099 Video still player with internal capability for executing externally-generated viewing programs |
| 01/03/1989 | US4796098 Banded and interleaved video disc format with duplicate information stored at different disc locations |
| 01/03/1989 | CA1248221A1 Digital data recovery circuit |
| 12/29/1988 | WO1988010491A1 Installation for reproducing data from an optical disc |
| 12/27/1988 | US4794582 Method and apparatus for preventing duplex recording on information recording medium |
| 12/27/1988 | US4794474 Cue signals and cue data block for use with recorded messages |
| 12/27/1988 | US4794467 Apparatus for automatically supplying and selectively reproducing a plurality of cassettes and for avoiding the reproducing of degraded signals |
| 12/27/1988 | US4794466 Disk player |
| 12/27/1988 | US4794465 Method of and apparatus for recording and/or reproducing a picture signal and an associated audio signal in/from a record carrier |
| 12/22/1988 | DE3719218A1 Cd-spieler Cd Player |
| 12/22/1988 | DE3719217A1 Cd-spieler Cd Player |
| 12/21/1988 | EP0295759A2 Apparatus for using differential data detection in write protection of an optical recorder |
| 12/20/1988 | US4792937 Process for the management of files on a non-erasable information carrier |
| 12/20/1988 | US4792936 Process for defining and modifying a partition of the storage space of a non-erasable carrier |
| 12/20/1988 | US4792934 Disk playing method for multi-disk player |
| 12/20/1988 | US4792869 Electronic apparatus for proper handling of interchangeable memory |
| 12/20/1988 | US4792867 Synchronizing circuit for dubbing apparatus |
| 12/20/1988 | US4792865 Disk container supporting a detachable memory |
| 12/20/1988 | US4792864 Apparatus for detecting recorded data in a video tape recorder for audience rating purposes |
| 12/15/1988 | WO1988009994A1 Compact disk reader |
| 12/15/1988 | WO1988009993A1 Compact disk reader |
| 12/14/1988 | EP0295164A1 Method of writing synchronization information on a magnetic record carrier |
| 12/14/1988 | EP0295148A1 Recording, reproduction and editing of data |
| 12/14/1988 | EP0294841A2 Memory control system |
| 12/13/1988 | US4791626 Automatic changer for player/recorder of optical magnetic discs and cards |
| 12/13/1988 | US4791623 File management system for use in an optical data storage system |
| 12/13/1988 | US4791622 Optical data format employing resynchronizable data sectors |
| 12/13/1988 | US4791512 Index signal detecting system |
| 12/13/1988 | US4791497 Apparatus for recording and/or reproducing, in successive slant tracks on a record tape, at least an audio signal and an index signal for controlling tape transport |
| 12/13/1988 | US4791477 Video recording camera |
| 12/07/1988 | EP0294241A2 Optical record/reproduction apparatus |
| 12/07/1988 | CN87101040A Encrypted method for floppy disk memorizing computer software |
| 12/06/1988 | US4789979 Optical disk exclusively used for reproduction wherein guide grooves located between data managing information and data recording regions have no track address sections |
| 12/06/1988 | US4789975 Apparatus for recording and/or reproducing data signal on or from disk shaped recording medium at a variably selected constant linear velocity |
| 12/06/1988 | US4789973 Recording/reproducing apparatus with dual display capability |
| 12/06/1988 | US4789972 Selectively controlling the erasure in a magneto-optic recording medium |
| 12/06/1988 | US4789961 Computer memory back-up with automatic tape positioning |
| 12/06/1988 | US4789911 Information recording and reproducing apparatus |
| 12/06/1988 | US4789907 Video cassette recording and/or viewing vending system |
| 12/06/1988 | US4789812 Device for controlling a motor for rotating a magnetic disc |
| 11/30/1988 | EP0292917A1 Apparatus for information recording and/or reproducing on or from an optical disc |
| 11/29/1988 | US4788713 One button control system for telephone answering device |
| 11/29/1988 | US4788674 Optical disc record reproducing apparatus |
| 11/29/1988 | US4788672 Method and apparatus for controlling renewal of data in optical disc memory |
| 11/29/1988 | US4788671 Information recording and reproducing apparatus for effecting simultaneous recording and reproduction but at different rates |
| 11/29/1988 | US4788602 Rotary head type recording and/or reproducing apparatus |
| 11/29/1988 | CA1245761A1 Apparatus for monitoring and displaying activity of an information processing system |
| 11/23/1988 | EP0291934A2 Index scan system in video tape recorder |
| 11/23/1988 | EP0291549A1 Method of timely controlling opening and closing times by means of a computer-controlled time code |
| 11/23/1988 | CN88204084U Auto-closing device for video recorder monitoring |
| 11/22/1988 | US4787073 Data playback system for random selections |
| 11/22/1988 | US4786985 Method and apparatus for extracting binary signals included in vertical blanking intervals of video signals |
| 11/22/1988 | US4786984 Method and apparatus for locating the edge of a magnetic tape |
| 11/22/1988 | US4786983 System for recording one's own voice on tapes already recorded with musical accompaniments |
| 11/22/1988 | US4786981 Reproduction and recording video signals in tracks |