| 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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| 09/08/1981 | CA1108540A1 Method of and system for priority transcribing of dictation |
| 09/02/1981 | EP0034867A1 An auxiliary mechanical device for magnetic tape registration and/or retrieval machines which use high winding speeds |
| 09/01/1981 | US4287542 Recording and reproducing device |
| 09/01/1981 | US4287541 Cassette loading device for a cassette recording apparatus |
| 09/01/1981 | US4287458 Digital servo control circuit |
| 09/01/1981 | CA1108292A1 Apparatus for indicating the amount of tape wound upon a reel |
| 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 |
| 08/18/1981 | US4285017 Stripe following in a helical scan device |
| 08/18/1981 | US4285016 Disc, tape and hybrid disc-tape memory apparatus and drive assembly |
| 08/18/1981 | US4284250 Tape drive having an improved reel latch |
| 08/18/1981 | CA1107394A1 Magnetic recording and reproducing device |
| 08/11/1981 | US4283746 Actuating device for the advancement of the tape in a cassette-type tape recording/playback apparatus |
| 08/11/1981 | US4283737 Video signal reproducing apparatus with circuit avoiding skew distortion when operated at abnormal speed and/or direction |
| 08/11/1981 | US4283671 Automatic residual phase error compensation circuit for a digital servo control system |
| 08/11/1981 | US4283095 Capstan shaft thrust pad device |
| 08/11/1981 | US4283027 Tape feeder in a tape recorder |
| 08/11/1981 | US4283026 Magnetic tape cassette |
| 08/11/1981 | CA1106967A1 Cassette tape player |
| 08/05/1981 | EP0033236A2 Apparatus for perpendicular magnetic recording on a moving magnetic medium |
| 08/05/1981 | EP0033100A2 Bidirectional ribbon drive control |
| 08/04/1981 | US4282552 Apparatus for reproducing a video signal including an address signal when the video tape moves at various speeds |
| 08/04/1981 | US4281807 Web transport apparatus |
| 07/29/1981 | EP0032834A1 A positionable element driving circuit |
| 07/28/1981 | US4280646 Tape transport capstan |
| 07/28/1981 | CA1106060A1 Tape cassette player |
| 07/28/1981 | CA1106056A1 Method and apparatus of inserting an address signal in a video signal |
| 07/21/1981 | US4280159 Method of and apparatus for indicating length and remaining recording capacity of a recording tape |
| 07/21/1981 | US4280154 Slot loading cassette tape mechanism |
| 07/21/1981 | US4280152 Player remote control having single wire control |
| 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 | US4280146 Rotary head type magnetic video recording and reproducing apparatus |
| 07/21/1981 | US4280136 Tape cassette and label inspection system therefor |
| 07/21/1981 | US4279386 Compact pneumatic reel latch |
| 07/15/1981 | EP0031976A1 Tape recording or reproducing apparatus with a pinch-roller mounted on a pivotable arm |
| 07/14/1981 | US4279006 Magnetic tape recording and/or reproducing apparatus |
| 07/14/1981 | US4279004 Method for controlling rotary memory device |
| 07/14/1981 | US4278924 Digital servo apparatus |
| 07/14/1981 | CA1105138A1 Cassette changer |
| 07/14/1981 | CA1105137A1 Cassette-type recording and/or reproducing apparatus |
| 07/14/1981 | CA1105135A1 Mode changing apparatus in a tape recorder |
| 07/09/1981 | WO1981001907A1 Indicator device for cassettes loaded with magnetical information carrier |
| 07/09/1981 | WO1981001902A1 Tape transport system |
| 07/09/1981 | WO1981001901A1 Automated conversation system |
| 07/08/1981 | EP0031754A2 Tape transport device comprising two capstans and tape tension control means |
| 07/08/1981 | EP0031691A1 Tape cassette device |
| 07/08/1981 | EP0031389A1 Device for driving endless tape |
| 07/07/1981 | US4277674 Tape running direction indicator |
| 06/30/1981 | US4276575 Tape guide for high-speed tape transport apparatus |
| 06/30/1981 | US4276571 Slow or still mode video signal reproducing apparatus with incremented tape movement |
| 06/23/1981 | US4275425 System for automatically transferring information media |
| 06/23/1981 | US4275424 Scanning type magnetic recorder and cassette |
| 06/23/1981 | US4274608 Tape transport |
| 06/16/1981 | US4274120 Information recording methods and apparatus |
| 06/16/1981 | US4274118 System for the recording and play-back of video signals |
| 06/16/1981 | US4274116 Tape recorder |
| 06/16/1981 | US4274115 Apparatus for detecting recording and reproducing state |
| 06/16/1981 | CA1103349A1 Controllable drive for tape recorder |
| 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 | US4272792 Mode changing system for a cassette tape recorder |
| 06/09/1981 | CA1102915A1 Pair of video tape recorders |
| 06/09/1981 | CA1102902A1 Method and apparatus for providing a stable, high gain servo system |
| 06/02/1981 | US4271440 Automatic tape cartridge handling system |
| 06/02/1981 | US4271437 Time lapse videotape editor/controller |
| 06/02/1981 | US4270854 Photographic instant camera with magnetic recording capability |
| 06/02/1981 | US4270685 Capstan bearing device |
| 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 | US4269739 Solutions or emulsions containing a wax, a silicone oil lubricant, a polysiloxane surfactant, a fluoro-containing surfactant, and a nonionic surfactant; television and audio devices; antistatic agents |
| 05/26/1981 | US4269373 Automatic stop mechanism for tape recorder |
| 05/20/1981 | EP0028928A1 A magnetic tape recording and/or reproducing apparatus |
| 05/19/1981 | US4268877 Recording and/or playback machine which affords use of various sized magazines |
| 05/19/1981 | US4268874 Transducer deflection apparatus for use in a video signal reproducing device |
| 05/19/1981 | US4268873 Servo circuit for rotary heads of a video tape recorder |
| 05/19/1981 | US4268724 Continuous timed segment broadcast recorder system |
| 05/19/1981 | US4267951 Tape guiding method and apparatus |
| 05/19/1981 | CA1101362A1 Sorting apparatus and reproducing machine |
| 05/12/1981 | US4267564 Apparatus for controlling and stopping a transport mechanism at a predetermined cue point |
| 05/12/1981 | US4266738 Tape reel |
| 05/12/1981 | CA1101100A1 Transfer of a flexible web member from supply reel to a take-up reel |
| 05/06/1981 | EP0027963A1 Method and device for producing tape tension in a magnetic-tape transport system |
| 05/05/1981 | US4266255 Capstan drive system for driving tape record media, and having internally mounted transducer head means |
| 05/05/1981 | US4266254 Integrated circuit for recording and playback of such recording |
| 05/05/1981 | US4265386 Torsional fluid damper system |
| 04/29/1981 | EP0027653A1 A hub for use in a magnetic recording tape cassette and a magnetic recording tape cassette comprising at least one such hub |
| 04/28/1981 | US4264937 Magnetic tape guide alignment device |
| 04/28/1981 | US4264936 Altitude correcting vacuum system |
| 04/28/1981 | US4264027 Thin layer of boride, nitride, carbide or oxycarbide on shaft, increases friction resistance |
| 04/28/1981 | CA1100232A1 Magnetic tape recorder apparatus |
| 04/28/1981 | CA1100231A1 Magnetic recording-reproducing device |
| 04/22/1981 | EP0027126A1 Tape transport |
| 04/22/1981 | EP0027109A1 Method of transmitting from a radio transmitter remote control signals for recording information on the receiver side |
| 04/21/1981 | US4263633 Combined magnetic tape head |
| 04/21/1981 | US4263631 Operating mechanisms of tape recorders |
| 04/21/1981 | US4263628 Magnetic transducing tape transport system |
| 04/21/1981 | US4263626 Control system for a tape recorder |
| 04/21/1981 | US4263625 Headwheel servo lock verification with stationary head |
| 04/21/1981 | US4262860 Tape cartridge with increased tape capacity |