| Patents for G11B 27 - Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel (59,746) |
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| 11/10/1981 | CA1112355A1 Automatic checking device for preset recording program of recording and reproducing apparatus |
| 11/04/1981 | EP0039152A1 Editing apparatus for recorded signals |
| 11/03/1981 | US4298898 Method of and apparatus for reading data from reference zones of a memory |
| 11/03/1981 | US4298897 Buffered recording |
| 10/28/1981 | EP0038648A1 Video editing apparatus |
| 10/27/1981 | US4297732 Method and device for locating a sound event on a magnetic tape |
| 10/21/1981 | EP0038167A2 System for selectively transferring data between display locations |
| 10/20/1981 | US4296491 Information carrier having inter-track identification code information |
| 10/20/1981 | US4296445 Phase sensor |
| 10/20/1981 | CA1111134A1 Cue recording system for magnetic recorder |
| 10/14/1981 | EP0037487A1 Method and apparatus for retrieving a storage position on a record carrier |
| 10/13/1981 | US4295168 Method and system to optimize recording conditions in magnetic recording systems |
| 10/07/1981 | EP0036890A1 Apparatus and method for detecting crossmodulation distortion |
| 09/30/1981 | EP0036497A1 Circuit for the automatic rewinding of a magnetic record carrier, especially of a video tape at the end of the programme |
| 09/29/1981 | US4292511 Apparatus and method for reading an identifying label on an information record |
| 09/29/1981 | US4292509 Indicator for tape running direction and tape remnant amount |
| 09/21/1981 | EP0031375A4 Apparatus and an improved method for processing of digital information. |
| 09/16/1981 | EP0035539A1 High capacity data cartridge system. |
| 09/15/1981 | US4290122 Self-synchronizing clock source for optical memories |
| 09/15/1981 | US4290090 Apparatus for and method of noise-free detection of inter-feature pauses to control selective replay in tape recording/reproduction systems |
| 09/15/1981 | US4290089 Magnetic-tape cassette with tape counting roller |
| 09/15/1981 | US4290087 Coarse and fine control of segmented video playback apparatus with ancillary recording medium |
| 09/15/1981 | US4290081 Method and apparatus for stop frame reproduction in television picture fields each recorded on tape in a plurality of adjacent tracks |
| 09/08/1981 | US4288823 Apparatus for and method of distinguishing pauses to control selective replay in tape recording/reproduction systems |
| 09/08/1981 | CA1108754A1 Transcriber having selectable word reproduction rate |
| 09/02/1981 | EP0034627A1 Editor for combining digitally recorded audio signals. |
| 09/01/1981 | US4287587 Signal loss dectector for video disc |
| 09/01/1981 | US4287540 Stabilized recording |
| 09/01/1981 | CA1108292A1 Apparatus for indicating the amount of tape wound upon a reel |
| 08/25/1981 | US4286294 Recording/reproducing system |
| 08/25/1981 | US4286290 Fast recovery squelch circuit for a video disc player |
| 08/25/1981 | US4286281 Video format signal recording and reproducing device |
| 08/25/1981 | US4286199 Helical scan recorder having capstan motor speed responsive to a frequency of a command signal |
| 08/25/1981 | US4285757 Tape end joining apparatus |
| 08/20/1981 | WO1981002356A1 Magnetic tape cassette comprising a marking device for the unwinding of the tape |
| 08/18/1981 | US4285021 Circuit for generating an audible signal in tape recorders at the tape end |
| 08/18/1981 | CA1107394A1 Magnetic recording and reproducing device |
| 08/12/1981 | EP0033608A1 Sequential data block address processing circuits |
| 08/11/1981 | US4283785 Optical information recording apparatus |
| 08/11/1981 | US4283745 Editing apparatus |
| 08/11/1981 | US4283735 Method and apparatus for selectively deleting during video tape recording |
| 08/04/1981 | US4282552 Apparatus for reproducing a video signal including an address signal when the video tape moves at various speeds |
| 07/28/1981 | CA1106056A1 Method and apparatus of inserting an address signal in a video signal |
| 07/22/1981 | EP0032232A2 Digital transmission system |
| 07/21/1981 | US4280159 Method of and apparatus for indicating length and remaining recording capacity of a recording tape |
| 07/21/1981 | US4280150 Helical scan video tape recorder guard band interference detector for generating control pulses at low tape speeds |
| 07/21/1981 | US4280149 Equipment for preventing gaps between previously recorded and newly recorded information on an information carrier |
| 07/21/1981 | US4280147 Digital television system and method |
| 07/14/1981 | US4279004 Method for controlling rotary memory device |
| 07/09/1981 | WO1981001902A1 Tape transport system |
| 07/09/1981 | WO1981001901A1 Automated conversation system |
| 07/08/1981 | EP0031375A1 Apparatus and an improved method for processing of digital information |
| 07/07/1981 | US4277796 Slow down color processor for video disc mastering using a special mode VTR |
| 07/07/1981 | US4277779 Time code generator |
| 07/07/1981 | US4277674 Tape running direction indicator |
| 06/30/1981 | US4276571 Slow or still mode video signal reproducing apparatus with incremented tape movement |
| 06/23/1981 | US4275466 Block sync signal extracting apparatus |
| 06/23/1981 | US4275457 Apparatus and method for receiving digital data at a first rate and outputting the data at a different rate |
| 06/23/1981 | US4275425 System for automatically transferring information media |
| 06/23/1981 | US4274605 Reel technology |
| 06/17/1981 | EP0030317A2 Playback apparatus for a disc-shaped record carrier, especially a video or audio disc |
| 06/17/1981 | EP0030301A2 Magnetic-recording method and apparatus; magnetic record medium produced by such method and method of using such record medium |
| 06/16/1981 | CA1103044A1 Electronic digital tape timer |
| 06/10/1981 | EP0029946A1 Arrangement for storing and relocating positions on record carriers in tape form in a recording and/or reproducing apparatus |
| 06/09/1981 | US4272790 Video tape editing system |
| 06/09/1981 | US4272780 Film scanner with variable rate image enhancement |
| 06/09/1981 | CA1102915A1 Pair of video tape recorders |
| 06/09/1981 | CA1102914A1 Method and apparatus for recording a single video frame |
| 06/02/1981 | US4271442 Plane magnetic recording medium |
| 06/02/1981 | US4271437 Time lapse videotape editor/controller |
| 06/02/1981 | CA1102449A1 Automated recording tape cartridge retrieval, handling and replay machine |
| 05/26/1981 | US4270154 Head selection technique |
| 05/26/1981 | US4270152 Magnetic tape reproduction device |
| 05/26/1981 | US4270151 Microphone mixer with predistortion indication |
| 05/19/1981 | US4268876 Magnetic reproducing device |
| 05/15/1981 | EP0020745A4 Method of recording data on an optical disc. |
| 05/12/1981 | US4267564 Apparatus for controlling and stopping a transport mechanism at a predetermined cue point |
| 05/12/1981 | CA1101100A1 Transfer of a flexible web member from supply reel to a take-up reel |
| 05/06/1981 | EP0028111A1 Apparatus and method for optically recording an information signal with reduced second harmonic distortion and a record so made |
| 05/06/1981 | EP0028058A1 Method of and apparatus for cutting and joining together strip materials |
| 04/29/1981 | EP0027617A1 Circuit arrangement for additional registration of control information on a video-record carrier |
| 04/28/1981 | US4264924 Dedicated channel interactive cable television system |
| 04/28/1981 | CA1100231A1 Magnetic recording-reproducing device |
| 04/22/1981 | EP0027109A1 Method of transmitting from a radio transmitter remote control signals for recording information on the receiver side |
| 04/21/1981 | US4263656 Visual sighting system |
| 04/21/1981 | US4263625 Headwheel servo lock verification with stationary head |
| 04/16/1981 | WO1981001072A1 Apparatus and method for detecting crossmodulation distortion |
| 04/08/1981 | EP0026320A1 Data recorder/reader and method of operating same |
| 04/07/1981 | US4261023 Magnetic recording reproducing apparatus |
| 04/07/1981 | US4261022 Data evaluator using an adjustable endless loop magnetic tape |
| 04/07/1981 | US4261020 Continuous speed control system for video tape recorder |
| 04/07/1981 | US4261008 Dual standard color framer |
| 04/07/1981 | US4260858 Videodisc player with drive means engaging videodisc guide groove |
| 04/07/1981 | CA1099015A1 Malfunction detector for a dictation system |
| 04/07/1981 | CA1098834A1 Dictation-transcription method and system |
| 04/02/1981 | WO1981000945A1 Automatic circuit and method for editing commercial messages from television signals |
| 03/31/1981 | US4258838 Automatic phonograph bonus award system |
| 03/24/1981 | US4258402 Small size tape recorder with adapter |
| 03/19/1981 | WO1981000782A1 High capacity data cartridge system |
| 03/17/1981 | CA1097802A1 Controlled-width-synchronization of recorded pixels |