| Patents for G11B 27 - Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel (59,746) |
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| 03/17/1981 | CA1097799A1 Tape motion control for reel-to-reel drive |
| 03/17/1981 | CA1097798A2 System for recording and/or reproducing a television signal |
| 03/11/1981 | EP0024858A2 Video record disc and playback apparatus and method for it |
| 03/10/1981 | US4255807 Error testing of recording media such as magnetic tape |
| 03/05/1981 | WO1981000640A1 Editor for combining digitally recorded audio signals |
| 03/03/1981 | CA1096965A1 Editing system |
| 03/03/1981 | CA1096777A1 Phonograph record track selection system |
| 02/24/1981 | US4253187 Method and apparatus for sequencing two digital signals |
| 02/24/1981 | US4253124 Tape recorder |
| 02/19/1981 | WO1981000480A1 Magnetic tape cassette |
| 02/11/1981 | EP0023767A1 Video player/recorder for recording on a blank disk and method for home recording |
| 02/03/1981 | US4249218 Method and apparatus for editing digitally recorded audio signals |
| 02/03/1981 | US4249041 Dictation-transcription system |
| 01/27/1981 | US4247582 Adhesive splicing tape |
| 01/22/1981 | WO1981000160A1 Apparatus and an improved method for processing of digital information |
| 01/13/1981 | USRE30482 Pulse code modulated digital audio system |
| 01/13/1981 | US4245263 Write precompensation and write encoding for FM and MFM recording |
| 01/13/1981 | CA1093691A1 Data disc optical reader containing a device for automatic data access |
| 01/07/1981 | EP0021971A1 Method of checking the reproduction of a sound recording by associating an auxilary signal to said recording |
| 01/07/1981 | EP0020745A1 Method of recording data on an optical disc. |
| 01/07/1981 | EP0020581A1 Magnetic tape recorder with quick access to recorded information |
| 01/06/1981 | US4244009 Cue recording system for magnetic recorder |
| 12/30/1980 | US4242505 Stability obtained by adding sulfuric acid and a nucleoside sulfate |
| 12/30/1980 | CA1092706A1 Video signal reproducing apparatus with a track searching arrangement |
| 12/30/1980 | CA1092705A1 System and method for attaching magnetic storage devices having dissimilar track capacities and track formats |
| 12/23/1980 | US4241405 Database updating apparatus |
| 12/23/1980 | US4241364 Program-selecting device in a reproducing apparatus |
| 12/23/1980 | US4241240 Optical information recording apparatus |
| 12/16/1980 | US4239957 Display apparatus for tape running positions |
| 12/16/1980 | CA1091804A2 Multi-layered optical data records and playback apparatus |
| 12/10/1980 | EP0019924A1 Method and apparatus for recording data signals on a recording medium |
| 12/09/1980 | CA1091348A1 Method and apparatus for increasing the recording capacity of a disc |
| 12/02/1980 | US4237540 Tape recorder with table computer |
| 12/02/1980 | US4237499 Video tape control time code reading |
| 12/02/1980 | US4237498 Method of addressing and/or locating information on a record carrier |
| 12/02/1980 | US4237497 Programmable multi-channel audio playback system |
| 12/02/1980 | US4237373 Magnetic tape running state and tape run amount display device |
| 12/02/1980 | CA1090889A1 Level indicating system |
| 11/26/1980 | EP0019503A1 Method of coding the digital indexing signals of images stored on a record carrier, device for reading the signals so coded and apparatus for transmitting audiovisual signals comprising such a device |
| 11/26/1980 | EP0019379A1 A recording medium for a digital optical memory, and a memory using such a medium |
| 11/25/1980 | US4236050 System for recovering information from a movable information storage medium having a pilot signal with an aligned phase angle in adjacent tracks |
| 11/25/1980 | CA1090430A1 Digital signal selective circuit |
| 11/18/1980 | US4234896 PCM Recording and reproducing system |
| 11/18/1980 | CA1089947A1 Apparatus for indicating the farthest advance position of a bi-directionally movable medium |
| 11/18/1980 | CA1089772A1 Circuitry for compression of silence in dictation speech recording |
| 11/11/1980 | US4233638 Cassette substitution apparatus |
| 11/04/1980 | US4232371 Apparatus for indicating the amount of tape wound upon a reel |
| 11/04/1980 | US4232365 Apparatus for determining the next address of a requested block in interlaced rotating memories |
| 11/04/1980 | US4232348 Tape end warning apparatus |
| 11/04/1980 | US4232347 Video tape control time code reading |
| 11/04/1980 | US4232346 Apparatus for repeated reproduction of intelligence on selected portions of magnetic tape |
| 11/04/1980 | US4232295 Jukebox polling system |
| 11/04/1980 | US4232267 Digital signal selective circuit |
| 10/29/1980 | EP0017803A1 Method of editing or cross-fading without interfering noise, two digital signal sequences, particularly of audio signals |
| 10/29/1980 | EP0017698A1 Record member playback apparatus |
| 10/28/1980 | US4230909 Telephone answering machine |
| 10/21/1980 | US4229808 Method for recording multiple data segments on a storage disc with eccentricity factor |
| 10/21/1980 | US4229771 Method of recording a control signal adjacent another signal track on a magnetic recording medium, and system therefor |
| 10/21/1980 | CA1088197A1 Color video signal recording and/or reproducing apparatus |
| 10/21/1980 | CA1088178A1 Event data recording apparatus with digitally encoded time and date |
| 10/14/1980 | US4228471 Apparatus for searching a piece of information recorded on a magnetic tape |
| 10/14/1980 | US4228470 Electronic reminder system |
| 10/07/1980 | USRE30416 Automatic program locator for tape decks |
| 10/07/1980 | US4227220 Tape recording system |
| 10/02/1980 | WO1980002093A1 Method of transmitting from a radio transmitter remote control signals for recording information on the receiver side |
| 10/01/1980 | EP0016560A1 Editing of programmes and other signals in digitally coded form |
| 10/01/1980 | EP0016314A1 Method and apparatus for voice dialogue between a video picture and a human |
| 09/30/1980 | US4225890 Magnetic tape recorder having a tape drive controller implemented with a digital processor chip |
| 09/30/1980 | US4225889 Magnetic recording and reproducing apparatus having means for recording a cue-signal |
| 09/29/1980 | EP0015269A4 Transcriber having selectable word reproduction rate. |
| 09/23/1980 | US4224645 Method and apparatus for controlling the movement of a recording medium |
| 09/23/1980 | US4224644 Method and apparatus for controlling a tape player/recorder for retrieving and playing prerecorded information |
| 09/23/1980 | US4224481 Compression and expansion circuitry for a recording and playback system |
| 09/23/1980 | CA1086423A1 Tape end warning apparatus |
| 09/23/1980 | CA1086421A1 Video signal reproducing apparatus with a track searching arrangement |
| 09/17/1980 | EP0015269A1 Transcriber having selectable word reproduction rate |
| 09/16/1980 | US4223390 System and method for attaching magnetic storage devices having dissimilar track capacities and recording formats |
| 09/16/1980 | US4222574 Radial-tracking programmable record player |
| 08/26/1980 | US4219704 Record playback apparatus for optical data records |
| 08/26/1980 | US4219702 Malfunction detector for a dictation system |
| 08/19/1980 | US4218775 Pushbutton radio tuner with illuminated pushbutton display |
| 08/19/1980 | CA1084146A1 Reel to reel web transport control apparatus |
| 08/12/1980 | US4217615 Tape measurement and position system |
| 08/12/1980 | US4217614 Cassette tape position indicator |
| 08/12/1980 | CA1083488A1 Pulse code modulated digital audio system |
| 08/07/1980 | WO1980001619A1 Automatic research of recorded sequences,particularly on cassette recorders |
| 08/05/1980 | US4215920 Means for post-production film-making |
| 08/05/1980 | CA1083246A1 Trace locator for a multi-trace recorder |
| 07/29/1980 | US4215378 Automatic stop device for a tape recorder |
| 07/29/1980 | CA1082804A1 Instruction indication apparatus for a record and/or playback device |
| 07/24/1980 | WO1980001522A1 A system for detection of tape thickness in tape recorders or players |
| 07/22/1980 | US4214282 Tape recorder |
| 07/22/1980 | US4214281 Tape recorder with means for displaying operation modes in the form of characters |
| 07/22/1980 | US4214280 Method and apparatus for recording data without recording on defective areas of a data recording medium |
| 07/22/1980 | US4214278 Editing system for videotape sound |
| 07/15/1980 | US4213163 Video-tape recording |
| 07/15/1980 | CA1081856A1 Microprocessor signal detector |
| 07/09/1980 | EP0012897A1 Control apparatus for a recording/playback system using an endless recording medium |
| 07/08/1980 | US4212039 VTR Tape drive system |
| 07/08/1980 | US4212037 Method for scanning a card with video signal |