| 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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| 06/28/1977 | US4032897 Interactive audiovisual display system |
| 06/21/1977 | US4031558 Head drum assembly with electrical noise shield |
| 06/21/1977 | US4031557 Casette loading device for use in magnetic sound recording and playing back apparatus |
| 06/21/1977 | US4031556 Player |
| 06/21/1977 | US4031554 Magnetic recording and reproducing apparatus |
| 06/21/1977 | US4031334 Apparatus for magnetic recording and/or reproducing of signals received by one or more signal receiving devices |
| 06/21/1977 | US4030675 Apparatus for film and tape winding |
| 06/14/1977 | US4030134 Apparatus for turning rotor for each desirable angle by driving force of capstan drive system |
| 06/14/1977 | US4030133 Guide drum apparatus for a video tape recorder and/or player |
| 06/14/1977 | US4030131 Slack tape loader |
| 06/14/1977 | US4030127 Audio tape player driver information device |
| 06/14/1977 | US4030012 Amplifier malfunction detector |
| 06/14/1977 | US4029268 Tape recorder and magnetic tape cassette |
| 06/07/1977 | US4028734 Plural magnetic head assembly with independently supporting structure |
| 05/31/1977 | US4027336 Motor speed control device |
| 05/31/1977 | US4026497 Pause device for tape recorder |
| 05/31/1977 | US4026496 Automatic repeat system for magnetic tape recorders and reproducers |
| 05/31/1977 | US4026489 Quick threading magnetic tape reel |
| 05/24/1977 | US4025959 Recorder-reproducer system |
| 05/24/1977 | US4025957 Magnetic recording system using magnetic tape |
| 05/24/1977 | US4025027 Tape propelling means in cassette-type tape-recorders |
| 05/17/1977 | US4024583 Magnetic head |
| 05/17/1977 | US4024580 Magnetic sound recording and playing back apparatus |
| 05/17/1977 | US4024354 Cassette central dictation system |
| 05/17/1977 | US4023870 Self-centering device to fasten a rotatory wheel against axial movements |
| 05/17/1977 | US4023748 Cassette loading and tape tensioning system |
| 05/10/1977 | US4023207 Video tape cassette changing apparatus |
| 05/10/1977 | US4023206 Humidity sensor |
| 05/10/1977 | US4022402 Container for magnetic tape |
| 05/10/1977 | US4022401 Tape cassette |
| 05/10/1977 | US4022400 Tape threading apparatus |
| 05/10/1977 | US4022368 Tape cartridge having enhanced tape drive facilities |
| 05/10/1977 | US4022080 Transcription mechanism for tape player |
| 05/03/1977 | US4021857 Magnetic recording system for reproducing successive still pictures |
| 05/03/1977 | US4021856 Cassette tape recorder |
| 05/03/1977 | US4021855 Cassette detection device for recording and/or playback apparatus |
| 05/03/1977 | US4021854 Miniature cassette tape recorder |
| 05/03/1977 | US4021104 Film-feeding speed controlling device for sound-cinecamera |
| 05/03/1977 | US4021006 Container for magnetic tape |
| 05/03/1977 | US4021005 Front loading cassette tape machine |
| 05/03/1977 | US4020999 Endless loop cartridge for video |
| 04/26/1977 | US4020364 Resistance read amplifier |
| 04/26/1977 | US4019694 Semiautomatic loading of tape transports |
| 04/19/1977 | US4019203 Filters for tape recording systems |
| 04/19/1977 | US4019202 Automatic shut-off circuit for eight-track tape players and the like |
| 04/19/1977 | US4018947 Method for edge marking recordable webs |
| 04/19/1977 | US4018404 Automatic tape stopping detective device in a magnetic recording and reproducing apparatus |
| 04/19/1977 | US4018403 Cassette loader for video recorder/reproducer |
| 04/19/1977 | US4018402 Tape transport apparatus |
| 04/19/1977 | US4018398 Winding hub for a record carrier in the form of a tape |
| 04/12/1977 | US4017904 Tape driving device including pinch roller and tape guide mounting means |
| 04/12/1977 | US4017902 Cassette ejector for tape recorder |
| 04/12/1977 | US4017901 Device for loading and unloading cartridges into and from a recording and/or playback apparatus |
| 04/12/1977 | US4017900 Tape recorder cassette ejecting device |
| 04/12/1977 | US4017897 Magnetic tape guide having a tapered roller and an adjustable contoured edge |
| 04/12/1977 | US4017896 Reversing cassette tape machine |
| 04/05/1977 | US4016602 Cartridge for endless magnetic-tape loop and device for recording and/or reading thereof |
| 04/05/1977 | US4015799 Adaptive reel-to-reel tape control system |
| 04/05/1977 | US4015789 Reversible cartridge tape player system with side drive |
| 03/29/1977 | US4015293 Cutaway tape guide for selectively cooperating with a capstan and guiding a tape |
| 03/29/1977 | US4015292 Rotatable multifaceted tape guide for use in a cassette |
| 03/29/1977 | US4015291 Flying head helical scan magnetic recording device employing a lobed rotor |
| 03/29/1977 | US4015177 Tape recorder |
| 03/29/1977 | US4015090 Recording and/or reproducing apparatus |
| 03/22/1977 | US4014043 Cassette type magnetic recording and reproducing apparatus |
| 03/22/1977 | US4014042 Tape recorder and magnetic tape cassette |
| 03/22/1977 | US4014041 Cassette recording and handling device |
| 03/22/1977 | US4014040 Apparatus for automatic track registration |
| 03/22/1977 | US4014039 Automatic program locator for tape decks |
| 03/15/1977 | US4012793 Multioriented composite-surface tape guide for use in a cassette |
| 03/15/1977 | US4012792 Magnetic head drum configuration having a friction reducing helical step |
| 03/15/1977 | US4012790 Magnetic transducing apparatus for using both endless loop cartridges and reel-to-reel cassettes |
| 03/15/1977 | US4012789 101/2 Inch tape reel adaptor |
| 03/15/1977 | US4012788 Yieldable, coaxially-driven tape wrapping guides for use in a helical tape recorder |
| 03/15/1977 | US4012787 Video tape recorder |
| 03/15/1977 | US4012784 Voice logging recorder including decks dedicated for both logging and recall operations |
| 03/15/1977 | US4012674 Dual motor web material transport system |
| 03/08/1977 | US4011592 Cassette tape recorder with tape pad |
| 03/08/1977 | US4011588 Rotary head type magnetic tape video recording-reproducing device |
| 03/08/1977 | US4011587 Rotary head magnetic recorder for use with a specific record member |
| 03/08/1977 | US4011586 Voice logging recorder for use with preloaded cassettes |
| 03/08/1977 | US4010918 Automatic reversal mechanism |
| 03/08/1977 | US4010917 Automatic stop device for a magnetic tape recording and/or playback apparatus |
| 03/01/1977 | US4010493 Tape transport device |
| 03/01/1977 | US4010491 Automatically retractable tape in sound-slide means |
| 03/01/1977 | US4009846 Tape recorder drive system |
| 02/22/1977 | US4009493 Cassette recording apparatus with automatic loading |
| 02/22/1977 | US4009445 Divider for an electronic timepiece |
| 02/22/1977 | US4008841 Two piece sheet metal capstan housing assembly |
| 02/15/1977 | US4008489 Portable video tape recorder |
| 02/15/1977 | US4008424 Bidirectional speed control system |
| 02/08/1977 | US4006853 Crescent reset system for fast forward 8-track cartridge player |
| 02/08/1977 | US4006522 Two piece sheet metal capstan housing assembly method |
| 02/01/1977 | US4006493 Tape cassette |
| 02/01/1977 | US4006309 Voice operated relay |
| 01/25/1977 | US4005492 Transducer head positioning apparatus |
| 01/25/1977 | US4005489 Tape-operating apparatus adapted for use either with an endless loop type or a coplanar type cassette |
| 01/25/1977 | US4005488 Tape-operating apparatus adapted for use either with an endless loop type cartridge or a coplanar type cassette |
| 01/25/1977 | US4005487 Tape-operating apparatus adapted for use either with an endless loop type cartridge or a coplanar type cassette |
| 01/25/1977 | US4005486 Apparatus for detecting tape running in a tape recorder |