| 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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| 12/25/1979 | US4180839 Information reproducing apparatus |
| 12/25/1979 | US4180838 Method and apparatus for producing programmable selection of music |
| 12/25/1979 | US4180836 Positioning device of play-back heads and pressing devices in play-back and/or recording apparatus |
| 12/25/1979 | US4180834 Head mounting device for tape recorder |
| 12/25/1979 | US4180832 Video recording and reproducing apparatus having variable reproduction speeds |
| 12/25/1979 | CA1068817A Magnetic video recording and reproducing apparatus |
| 12/25/1979 | CA1068815A Rotary head type magnetic video recording and reproducing system |
| 12/18/1979 | US4179721 Tape recorder having playback retaining mechanism |
| 12/18/1979 | US4179717 Method and apparatus for video signal recording |
| 12/18/1979 | US4179716 Tape end warning apparatus |
| 12/18/1979 | US4179715 Electric circuit for accessory for host tape recorder |
| 12/18/1979 | US4179714 Method of recording an index signal in dictating tape recorder |
| 12/18/1979 | US4178809 Mode change-over device for recording and/or reproducing apparatus |
| 12/18/1979 | CA1068397A1 Method and apparatus for measuring the speed at which a tape was recorded |
| 12/18/1979 | CA1068396A1 Guide drum apparatus for a video tape recorder and/or player |
| 12/13/1979 | WO1979001101A1 Quartz crystal resonator |
| 12/11/1979 | US4178616 Cassette tape recorder |
| 12/11/1979 | CA1067997A1 Servo system for controlling the position of a reading head |
| 12/04/1979 | US4177490 Switching device for cassette tape recorders |
| 12/04/1979 | US4177489 Tape running mechanism provided with automatic stopping device |
| 12/04/1979 | CA1067617A1 Cassette tape recorder |
| 12/04/1979 | CA1067616A1 Recording and/or playback apparatus and cassette for such an apparatus |
| 11/27/1979 | US4176383 Tape machine having automatic return to playback mode after fast forward or rewind |
| 11/27/1979 | US4176382 High performance tape path for a 19 inch tape recorder |
| 11/27/1979 | US4176380 Adaptive speed/interblock gap control for tape drive |
| 11/27/1979 | CA1067205A1 Slipping clutch for a recording and/or playback apparatus |
| 11/27/1979 | CA1067057A1 Tape cassette |
| 11/20/1979 | US4175273 Apparatus for automatically stopping a cassette tape recorder |
| 11/20/1979 | US4175267 Method and apparatus of inserting an address signal in a video signal |
| 11/13/1979 | US4174079 Method of detecting tape transport condition |
| 11/13/1979 | CA1066405A1 Head drum assembly |
| 11/06/1979 | US4173773 Tape end alarm for tape recorder |
| 11/06/1979 | US4173320 Direct drive for fast forward and reverse in tape deck |
| 11/06/1979 | US4173319 Magnetic tape cassette |
| 10/30/1979 | US4173028 Cassette-type recording and/or reproducing apparatus |
| 10/30/1979 | US4172569 Tape transport system with peripheral belt drive |
| 10/30/1979 | CA1065478A1 Tape player preamplifier circuit |
| 10/30/1979 | CA1065476A1 Magnetic recording and reproducing device |
| 10/23/1979 | US4172266 Magnetic recording-reproducing device |
| 10/23/1979 | US4172231 Transfer of a flexible web member from supply reel to a take-up reel |
| 10/23/1979 | US4172221 Circuit arrangement for automatically closing a switching transistor for a predetermined time period after opening a switching means |
| 10/23/1979 | CA1065053A1 Leader for magnetic recording tape |
| 10/17/1979 | EP0004657A2 Method for tape recording time-spaced segments of video information and apparatus for carrying out this method |
| 10/16/1979 | US4171530 System for the electronic editing of video signals |
| 10/16/1979 | US4171111 Drive mechanism for a tape recorder |
| 10/16/1979 | US4171110 Peripheral drive tape winding methods and apparatus |
| 10/16/1979 | US4171082 Tape guide |
| 10/16/1979 | CA1064614A1 Adaptive gain control in an incrementing magnetic tape transport |
| 10/16/1979 | CA1064613A1 Magnetic tape recording and/or reproducing apparatus with device for recording and/or reproducing control signals |
| 10/16/1979 | CA1064612A1 Magnetic recording and/or reproducing apparatus |
| 10/16/1979 | CA1064611A1 Servo information pattern for rotating head magnetic tape unit independent of amplitude |
| 10/16/1979 | CA1064609A1 Magnetic record member for use with rotating head magnetic recording apparatus |
| 10/09/1979 | US4170790 Tape recorder device with tape running speed display |
| 10/09/1979 | US4170789 Magnetic tape recording and reproduction apparatus |
| 10/09/1979 | US4170787 Tape recording/reproducing apparatus, particularly for operation with video tape cassettes |
| 10/09/1979 | CA1064158A1 Self threading leader for a reel of tape |
| 10/09/1979 | CA1064157A1 Recording and/or playback apparatus and magazine for such an apparatus |
| 10/09/1979 | CA1064156A1 Magazine loading device for magnetic video recording and reproducing apparatus |
| 10/02/1979 | US4170029 Multiple speed drive mechanism for cassette recorders |
| 10/02/1979 | US4169970 Memorial audio reproduction system |
| 10/02/1979 | CA1063721A1 Tape timer error corrector circuit for tape recorder/reproducers |
| 09/25/1979 | US4169277 Reel-to-reel adapter for tape cartridge player |
| 09/25/1979 | US4168811 Reel to retain a tape leader strip in wound position |
| 09/25/1979 | CA1063237A1 Front drive cartridge-tape player system with fast forward and reverse modes |
| 09/25/1979 | CA1063082A1 Web transport system |
| 09/18/1979 | US4168043 Tape cassette |
| 09/18/1979 | CA1062682A1 Transport apparatus with intermittently applied loading brake |
| 09/11/1979 | US4167787 Tape recorder apparatus with a tape-running direction display |
| 09/11/1979 | US4167764 Mode changing apparatus in a tape recorder |
| 09/11/1979 | US4167759 Apparatus for inserting an address signal in a frame of the vertical blanking period of a television signal |
| 09/11/1979 | US4167257 Tape deck capstan shifting apparatus |
| 09/11/1979 | US4167256 Tape recorder/reproducer for selectably operating in reel-to-reel and cassette modes |
| 09/04/1979 | US4167028 Method and an apparatus for time signal encoding/decoding |
| 09/04/1979 | CA1061901A1 Apparatus for recording and/or playing back signals on and/or from a record carrier contained in a cassette |
| 09/04/1979 | CA1061900A1 Tape drive system |
| 09/04/1979 | CA1061899A2 Cassette and apparatus for recording and/or reproducing information |
| 09/04/1979 | CA1061898A1 Transducer head positioning apparatus |
| 09/04/1979 | CA1061896A1 Magnetic tape cassette recorder |
| 09/04/1979 | CA1061895A1 Electronic channel selecting system for a quad-stereo tape player |
| 09/04/1979 | CA1061894A1 Cassette tape recording and/or reproducing apparatus |
| 09/04/1979 | CA1061882A1 Tape transport system |
| 08/28/1979 | US4166283 Self-threading helical scan video cassette recorder |
| 08/28/1979 | CA1061464A1 Magnetic head |
| 08/28/1979 | CA1061460A1 Dual speed tape drive system for an endless loop dictating and transcribing system |
| 08/28/1979 | CA1061459A1 Tape lifter |
| 08/28/1979 | CA1061457A1 Dynamic skew correction for rotating head magnetic recorder |
| 08/28/1979 | CA1061456A1 Arrangement for preventing wow and flutter in magnetic tape recorders |
| 08/28/1979 | CA1061455A2 Dynamic skew correction for rotating head magnetic recorder |
| 08/21/1979 | US4165522 Video recorder and playback unit including remotely operable timed fast forward advance |
| 08/21/1979 | US4165050 Reel holding hub assembly |
| 08/21/1979 | CA1060988A1 Rotary head type magnetic tape video recording-reproducing device |
| 08/21/1979 | CA1060987A1 Electronic dynamic braking for tape recorder devices |
| 08/21/1979 | CA1060684A1 Aluminum alloy and method of production |
| 08/14/1979 | US4164765 Carousel tape system |
| 08/14/1979 | US4164604 Leader or trailer tape for a magnetic recording medium |
| 08/14/1979 | CA1060580A1 Recording and/or playback apparatus |
| 08/14/1979 | CA1060537A1 Bi-directional motor drive servo |
| 08/08/1979 | EP0003444A1 Method and apparatus for video signal recording |
| 08/07/1979 | US4163997 Cassette accepting and ejecting device |
| 08/07/1979 | US4163993 Continuous slow motion automatic tracking system |