| Patents for G11B 15 - Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function (21,557) |
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| 12/09/1980 | CA1091344A1 Cassette apparatus |
| 12/02/1980 | US4237505 Combined recording and playback magnetic tape head with shield cases and a flat chip for controlling tape wrap angle |
| 12/02/1980 | US4237500 Method of controlling the position of a write-read head and device for carrying out the method |
| 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 | US4236682 Slot loaded, low profile magnetic tape drive |
| 12/02/1980 | US4236681 Tape recorder |
| 12/02/1980 | US4236423 Operation mechanism for tape recorder |
| 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 | US4235395 Magnetic tape cassette with pivoting cover |
| 11/25/1980 | CA1090470A1 Magnetic-tape guide arrangement |
| 11/25/1980 | CA1090469A1 Cartridge ejecting mechanism |
| 11/25/1980 | CA1090430A1 Digital signal selective circuit |
| 11/18/1980 | US4234140 Magnetic tape cassette drive system |
| 11/18/1980 | US4234139 Device for the detection of the state of rotation of a shaft, in particular for tape decks |
| 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 |
| 11/12/1980 | EP0018645A1 Magnetic tape advancing mechanism of the reel-contact type |
| 11/12/1980 | EP0018644A1 Process for improving the uniform driving of contact winding drive mechanisms |
| 11/12/1980 | EP0018584A1 Recording tape with a leader, particularly magnetic tape and tape spool |
| 11/11/1980 | US4233638 Cassette substitution apparatus |
| 11/11/1980 | US4232840 Tape cassette |
| 11/11/1980 | CA1089563A1 Recording and/or reproducing apparatus |
| 11/04/1980 | US4232371 Apparatus for indicating the amount of tape wound upon a reel |
| 11/04/1980 | US4232349 Mode switching mechanism for a cassette tape recorder |
| 11/04/1980 | US4232348 Tape end warning apparatus |
| 11/04/1980 | US4232346 Apparatus for repeated reproduction of intelligence on selected portions of magnetic tape |
| 11/04/1980 | US4232267 Digital signal selective circuit |
| 11/04/1980 | US4232257 Web transport capstan control system |
| 11/04/1980 | US4231504 Adjusting mechanism for a tape recorder capstan |
| 11/04/1980 | US4231268 Flywheel for small size tape recorder |
| 10/30/1980 | WO1980002330A1 Tape transport |
| 10/29/1980 | EP0017700A1 Central dictation system with a magnetic tape carrier labeling apparatus |
| 10/29/1980 | EP0017698A1 Record member playback apparatus |
| 10/28/1980 | US4230932 Blowers for drying video tape recorders |
| 10/28/1980 | US4230909 Telephone answering machine |
| 10/21/1980 | US4229772 Tape recorder having an automatic mode switching mechanism |
| 10/21/1980 | US4228940 Tape guide means for recording and/or reproducing apparatus and method of manufacturing the same |
| 10/21/1980 | CA1088205A1 Tape recorder |
| 10/21/1980 | CA1087990A1 Dual medium dictation recording and transcription system |
| 10/15/1980 | EP0017288A1 Adjustable torsion-spring clutch |
| 10/15/1980 | EP0017134A1 Tape cassette and apparatus therefor |
| 10/15/1980 | EP0016866A1 Device to render ineffective output-voltage deviations of a pressure transducer in magnetic tape apparatuses caused by fluctuations in temperature |
| 10/14/1980 | US4228472 Interval detection and drive mechanism for cassette tape recorder |
| 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 | US4227226 Cassette tape player |
| 10/07/1980 | US4227224 Cassette tape recording/reproducing apparatus |
| 10/07/1980 | US4227223 Auto-repeat mechanism for cassette tape recorder |
| 10/07/1980 | US4227222 Hand-operated tape recorder for dictation |
| 10/07/1980 | US4227220 Tape recording system |
| 10/07/1980 | US4226386 Tape recording/reproducing transport system, particularly for longitudinal video tape recording |
| 10/07/1980 | US4226382 Catching and holding the terminal end of a tape in a tape reel |
| 10/07/1980 | CA1087306A1 Electronic control system for multiple cassette record and /or playback apparatus |
| 10/02/1980 | WO1980002093A1 Method of transmitting from a radio transmitter remote control signals for recording information on the receiver side |
| 09/30/1980 | US4225894 Mode change-over mechanism for recording and/or reproducing apparatus |
| 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 |
| 09/30/1980 | US4225100 Tape cassette |
| 09/30/1980 | US4225099 Tape transport mechanism |
| 09/30/1980 | US4225098 Tape transport apparatus |
| 09/29/1980 | EP0015269A4 Transcriber having selectable word reproduction rate. |
| 09/23/1980 | US4224650 Cartridge ejecting apparatus for magnetic tape players |
| 09/23/1980 | US4224647 Magnetic tape-record/playback apparatus |
| 09/23/1980 | US4224646 Automatic preferred tape track selection for bi-directional tape transport |
| 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 | US4224643 Automatic tracking servo control system |
| 09/23/1980 | US4223855 Braking system for reel-to-reel tape transport |
| 09/23/1980 | CA1086423A1 Tape end warning apparatus |
| 09/23/1980 | CA1086421A1 Video signal reproducing apparatus with a track searching arrangement |
| 09/17/1980 | EP0015445A1 Checking programmed controller operation |
| 09/17/1980 | EP0015269A1 Transcriber having selectable word reproduction rate |
| 09/16/1980 | US4223362 Tape recording and/or reproducing apparatus |
| 09/16/1980 | US4222536 Device for sensing and indicating the end of a tape in a tape recorder |
| 09/16/1980 | CA1085943A1 Method to prevent unauthorized use of cassette tape recorders and a device according to the method |
| 09/09/1980 | US4222083 Writing and/or reading apparatus for magnetic tape cassettes |
| 09/09/1980 | US4222081 Information reading device for a multitrack storage device |
| 09/09/1980 | US4222079 PCM Recording and reproducing system |
| 09/09/1980 | US4221938 Central control system for a dictation device with plural dictators and plural recorders |
| 09/09/1980 | US4221348 Belt driven tape cartridge |
| 09/09/1980 | US4221316 NAB Tape cartridge eraser and splice finder |
| 09/02/1980 | US4220997 Process and apparatus for transferring information between an information store and a data channel |
| 08/26/1980 | US4219852 Improved cassette recorder having simplified operation |
| 08/26/1980 | US4219764 Apparatus for use with a motor drive |
| 08/26/1980 | US4219169 Floating roller magnetic tape cartridge |
| 08/26/1980 | US4219167 Dual capstan tape transport mechanism |
| 08/26/1980 | CA1084622A1 Magnetic head drum configuration having a friction reducing helical step |
| 08/20/1980 | EP0014380A1 Device to attach a tape end to a reel hub |
| 08/20/1980 | EP0014311A1 Method of correcting head-to-track alignment, rotating head magnetic tape unit and magnetic tape |
| 08/19/1980 | US4218639 Tape tension control for tape recording and/or reproducing system |
| 08/19/1980 | US4217991 Device for storing and readying of magnetic tape cassettes |
| 08/19/1980 | CA1084146A1 Reel to reel web transport control apparatus |
| 08/12/1980 | US4216889 Vacuum tank for magnetic tape handlers |
| 08/12/1980 | CA1083688A1 Device for generating a pulse train |
| 08/07/1980 | WO1980001619A1 Automatic research of recorded sequences,particularly on cassette recorders |
| 08/06/1980 | EP0013806A1 Automatic cassette changing method and system |
| 08/05/1980 | US4216509 Cassette player/recorder interchangeably handling cassettes of two sizes |