| 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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| 11/07/1978 | US4124873 Electric device for use in a transcriber |
| 11/07/1978 | CA1041976A1 Tape threading apparatus |
| 11/07/1978 | CA1041975A1 Cassette loading apparatus |
| 10/31/1978 | US4123791 Magnetic transducer device with outrigger bars |
| 10/31/1978 | US4123789 Magnetic tape storage and transport cartridge and mechanisms therefor |
| 10/31/1978 | US4123788 Magnetic information carrier with optical servo tracks and apparatus for reading and writing the same |
| 10/31/1978 | US4123787 Electronic and kinematic contrivance for a selective recording of signals on a single tape |
| 10/31/1978 | US4123785 Recorder for cardiac signals with manually actuated event marking |
| 10/31/1978 | US4123773 Servo arrangement for the recording tape drive in broadband signal reproducing systems |
| 10/31/1978 | US4123016 Control for mini tape recorder |
| 10/31/1978 | US4123015 Automatic stopping device for tape recorder |
| 10/31/1978 | US4123010 Adapter hub for a reel |
| 10/24/1978 | US4122506 Magnetically recording and reproducing apparatus |
| 10/24/1978 | US4122504 Tape transport with drive drums surface driven with the same capstan at a constant tangential velocity |
| 10/24/1978 | US4121786 Coaxial reel system |
| 10/24/1978 | US4121784 Leader to hub locking device |
| 10/17/1978 | US4121267 High speed feeding and rewinding mechanism in a magnetic tape recording and reproducing apparatus |
| 10/17/1978 | US4121263 Method and apparatus for control signal separation to regain synchronization between a visual image projector and an audio program |
| 10/17/1978 | US4121262 Magnetic recording/reproducing device |
| 10/17/1978 | US4121249 Card recording and reproduction apparatus and method |
| 10/17/1978 | US4121138 Servo system |
| 10/10/1978 | US4120009 Tape recorder apparatus |
| 10/10/1978 | US4120007 Head switching control apparatus for use in a video signal processing system |
| 10/10/1978 | US4120006 Random access recording and/or playback system |
| 10/10/1978 | US4120005 Mode selecting device for tape recording and/or reproducing apparatus |
| 10/10/1978 | US4119282 Magnetic tape magazine |
| 10/10/1978 | CA1040305A1 Slotted rotating head which files relative to flexible magnetic media |
| 10/03/1978 | US4118745 Single lever operated cassette tape recorder |
| 10/03/1978 | US4118744 Tape end detection release device for tape recorder |
| 10/03/1978 | US4118743 Cassette tape recorder with memory controlled selective by-pass |
| 10/03/1978 | CA1039846A1 Method and apparatus for sensing relative position between head and track in transverse magnetic recording |
| 10/03/1978 | CA1039844A1 Video tape recorder in which the drum is rotated syncronously with signals on tape |
| 09/26/1978 | US4117520 Magnetic tape cartridge recording apparatus with manually actuated tape threading and tape rewind |
| 09/26/1978 | US4116401 Dual reel hub |
| 09/26/1978 | US4116078 Lock release mechanism for push button levers in a tape recorder |
| 09/26/1978 | CA1039400A1 Tape recorder |
| 09/19/1978 | US4115826 Cartridge type magnetic tape recorders |
| 09/19/1978 | US4115825 Tape loading apparatus in a magnetic recording and reproducing apparatus |
| 09/19/1978 | US4115822 Automatic start and shut-off apparatus for magnetic-tape sound recorder |
| 09/19/1978 | US4115821 Nonrecorded section detection in a tape recorder apparatus |
| 09/19/1978 | US4114871 Collation controls |
| 09/19/1978 | US4114834 Tape drive system and one-way clutch mechanism |
| 09/19/1978 | US4114832 Cartridge for tape-, ribbon-, or filament-like information storage media |
| 09/19/1978 | US4114831 Concentric reel drive for a tape cassette |
| 09/19/1978 | US4114830 Rotation control system |
| 09/19/1978 | CA1038959A1 Video recording and/or reproducing apparatus, and record assembly for use therein |
| 09/12/1978 | US4114182 Cassette turning mechanism |
| 09/12/1978 | US4113994 Dictation recording and transcribing system utilizing selectable dual message record-playback apparatus |
| 09/05/1978 | US4112472 Longitudinal scan, cam shaped, turntable rotor for magnetic recording |
| 09/05/1978 | US4112470 System for repeatedly reproducing a recorded material of a limited duration |
| 09/05/1978 | US4111410 Sorting apparatus and reproducing machine |
| 08/29/1978 | US4110801 Magnetic tape transducing apparatus |
| 08/29/1978 | US4110800 Turnaround system |
| 08/29/1978 | US4110799 Servo system for controlling the position of a magnetic head relative to a track to be followed using periodically interrupted long-wave positioning signals |
| 08/29/1978 | US4110670 Braking apparatus |
| 08/29/1978 | US4109878 Cassette tape winding apparatus |
| 08/29/1978 | CA1037603A1 Cartridge tape player system having reverse and fast-forward nodes of operation |
| 08/29/1978 | CA1037562A1 Apparatus for detecting the direction of a magnetic field |
| 08/22/1978 | US4109286 Cassette tape recorder with cassette eject mechanism |
| 08/22/1978 | US4109184 Method and apparatus for providing a stable, high gain servo system |
| 08/22/1978 | CA1037115A1 Apparatus for stabilization of electrical power supply mains |
| 08/15/1978 | USRE29733 Telephone answering apparatus |
| 08/15/1978 | US4107753 Cassette holder capable of rotation through a larger angle of inclination |
| 08/15/1978 | US4107747 Fluidic controlled cartridge ejector |
| 08/15/1978 | US4107745 Tape speed control apparatus |
| 08/15/1978 | US4107744 Variable ratio magnetic tape drive using a variable belt thickness |
| 08/15/1978 | US4107743 Cassette recorder with anti-erase interlock |
| 08/15/1978 | US4107561 Clutch apparatus for generating a pulse train |
| 08/15/1978 | US4106725 Drive unit for magnetic tape-recorders |
| 08/15/1978 | US4106724 Tape cassette |
| 08/15/1978 | US4106686 Tape transport |
| 08/15/1978 | US4106663 Means for opening and closing a lid of cassette tape receiver portion |
| 08/15/1978 | CA1036710A1 Protection circuit for tape recording and/or reproducing apparatus |
| 08/08/1978 | US4106067 Magnetic head cleaning jacket |
| 08/08/1978 | US4106064 Cassette-type recording and/or reproducing apparatus with inadvertent erase preventing device |
| 08/08/1978 | US4105936 Variable speed tape transport apparatus |
| 08/08/1978 | US4105934 Magnetic tape reproducer with series interconnected torque motors in play mode |
| 08/01/1978 | US4104685 Video recorder/reproducer transport having two movable tension guides for controlling tape tension |
| 08/01/1978 | US4104684 Rotary head type magnetic video recording and reproducing system |
| 07/25/1978 | US4103332 Mile post location display system |
| 07/25/1978 | US4103313 Circuit for the automatic scanning adjustment of a video tape in a video recorder |
| 07/25/1978 | US4103197 Cylindrical core with toroidal windings at angularly spaced locations on the core |
| 07/25/1978 | US4102517 Tape driving apparatus for tape play-back and/or recording devices |
| 07/25/1978 | US4102516 Tensioning means for belt driven tape cassette |
| 07/18/1978 | US4101949 Single control key for tape recorders |
| 07/18/1978 | US4101946 Tape playing machine with movable head mount |
| 07/18/1978 | US4101944 Magazine loading device for magnetic video recording and reproducing apparatus |
| 07/18/1978 | US4101943 Controlled-width-synchronization of recorded pixels |
| 07/18/1978 | US4101941 Automatic tape run-reversing device |
| 07/18/1978 | US4101936 Automatic tape loading type reproducing apparatus having intermittent tape shifting capability |
| 07/18/1978 | US4101742 Audio message system with programmer |
| 07/11/1978 | US4100607 Computer for video tape editing system |
| 07/11/1978 | US4100585 Magnetic-tape guide arrangement |
| 07/11/1978 | US4100583 Thin-film magnetic head for reading and writing information |
| 07/11/1978 | US4100581 Door actuated message device |
| 07/11/1978 | US4100411 Biasing arrangement for a corona discharge device |
| 07/11/1978 | US4099686 Receptacle for tape cartridge |
| 07/04/1978 | US4099213 Tape cassette loading system |
| 07/04/1978 | US4099209 Electronic control system for multiple cassette record and/or playback apparatus |
| 07/04/1978 | US4098474 Tape drive for a cassette in a sound reproducer and/or recorder |