| 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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| 08/05/1980 | US4216508 Tape cartridge tensioning and ejecting mechanism |
| 08/05/1980 | US4216507 Automatic tape player-changer |
| 08/05/1980 | CA1083246A1 Trace locator for a multi-trace recorder |
| 07/29/1980 | US4215379 Cartridge magnetic recorder |
| 07/29/1980 | US4215378 Automatic stop device for a tape recorder |
| 07/29/1980 | US4215377 Multi-speed tape cassette system |
| 07/29/1980 | US4214719 Tape cassette |
| 07/29/1980 | US4214690 Axial locating of horizontally extending tape drive shaft in cassette machine |
| 07/29/1980 | CA1082805A1 Flying head helical scan magnetic recording device employing a lobed rotor |
| 07/22/1980 | US4214285 Sound motion picture system having concentrated audio system |
| 07/22/1980 | US4214284 Method and apparatus for controlling tape recorder |
| 07/22/1980 | US4214283 Drive mechanism for cassette tape recorders |
| 07/22/1980 | US4214282 Tape recorder |
| 07/22/1980 | US4214281 Tape recorder with means for displaying operation modes in the form of characters |
| 07/22/1980 | US4214278 Editing system for videotape sound |
| 07/22/1980 | US4214259 Color video tape recorder/reproducer with chrome corrector |
| 07/22/1980 | US4213583 Reel drive motor control system for cassette/cartridge tape recorders |
| 07/22/1980 | US4213578 Cassette tape reel |
| 07/22/1980 | CA1082355A1 Push rod type tape recorder operating device |
| 07/15/1980 | US4213163 Video-tape recording |
| 07/15/1980 | US4213162 Magnetic tape cartridge transducing apparatus and method |
| 07/15/1980 | US4213161 Motor control for slow speed tape recorder |
| 07/15/1980 | US4213160 Methods and apparatus for driving information carrier tape |
| 07/15/1980 | US4212439 Magnetic tape recording and/or reproducing apparatus |
| 07/15/1980 | US4212438 Fast rewind mechanism for bidirectional tape transports for cassettes |
| 07/15/1980 | US4212436 Tape transport apparatus having a central capstan |
| 07/15/1980 | US4212422 Web position controller for web transport systems |
| 07/15/1980 | CA1081856A1 Microprocessor signal detector |
| 07/15/1980 | CA1081805A1 Matrix selection amplifier circuit for low impedance heads in a magnetic disc memory device |
| 07/09/1980 | EP0012897A1 Control apparatus for a recording/playback system using an endless recording medium |
| 07/08/1980 | US4212040 Tape recorder with single control activating member |
| 07/08/1980 | US4212039 VTR Tape drive system |
| 07/08/1980 | US4212037 Method for scanning a card with video signal |
| 07/08/1980 | CA1081361A1 Tape path for a magnetic tape transport system |
| 07/08/1980 | CA1081360A1 Procedure for tightening tape wraps on a spindle |
| 07/08/1980 | CA1081004A1 Gear-driven change-over mechanism |
| 07/01/1980 | US4210945 Rotary magnetic head assembly |
| 07/01/1980 | US4210944 Tape stop detection mechanism for cassette tape recorders |
| 07/01/1980 | US4210943 Automatic tracking servo control system |
| 07/01/1980 | US4210940 Variable format tape replay system |
| 07/01/1980 | US4210785 Tape replay system |
| 07/01/1980 | US4210297 Tape driving system for a tape recorder |
| 07/01/1980 | CA1080846A1 Cartridge type magnetic recording and reproducing system |
| 06/25/1980 | EP0012531A2 Improvements to magnetic tape handlers |
| 06/25/1980 | EP0012264A1 Data transducing apparatus |
| 06/24/1980 | US4209812 Tape player |
| 06/24/1980 | US4209145 Fast forward-reverse mechanism for cassette type tape recorder |
| 06/24/1980 | US4209144 Floating roller tape cartridge |
| 06/24/1980 | US4209119 Tape drive control apparatus |
| 06/24/1980 | CA1080353A1 Telephone answering apparatus with control in response to segment of the endless tape loop |
| 06/24/1980 | CA1080352A1 Variable message recorder employing single tape loop and having fast reset |
| 06/24/1980 | CA1080329A1 Slack tape loader |
| 06/17/1980 | US4208681 Cartridge type record player having a three position holder |
| 06/17/1980 | US4208622 Motor circuit of a tape recorder |
| 06/17/1980 | US4208023 Tape transport mechanism of movable frame type with lateral guides |
| 06/17/1980 | CA1079849A1 Transducer support and stabilizer |
| 06/12/1980 | WO1980001216A1 Magnetic tape recorder with quick access to recorded information |
| 06/11/1980 | EP0011771A1 Anodised aluminium rolls with improved electrical conductibility and method of manufacturing the same |
| 06/10/1980 | US4207600 Tape-drive mode selecting and actuating mechanism for tape-recorder |
| 06/10/1980 | US4207440 Dictation recorder with speech-extendable adjustment predetermined playback time |
| 06/10/1980 | US4206890 Tape position sensing apparatus for magnetic tape drive |
| 06/10/1980 | CA1079399A1 Cassette tape recording and/or reproducing apparatus |
| 06/10/1980 | CA1079397A1 Removable cassette container in recording and/or playback apparatus |
| 06/03/1980 | US4206488 Miniature cassette tape recorder |
| 06/03/1980 | US4206486 Electric device for use in a transcriber |
| 06/03/1980 | US4206485 Digital phase servo system |
| 06/03/1980 | US4206484 Tape recorder and player with control lever locking mechanism |
| 06/03/1980 | US4206483 Automatic checking device for preset recording program of recording and reproducing apparatus |
| 06/03/1980 | US4205809 Tape cassette |
| 06/03/1980 | US4205808 Tape cartridge |
| 06/03/1980 | CA1078959A1 Tracking control system for magnetic video recording and reproducing system |
| 06/03/1980 | CA1078750A1 On-line tape library system |
| 05/28/1980 | EP0011467A1 Tape cassette |
| 05/28/1980 | EP0011232A1 Recording-reproduction apparatus for an endless tape |
| 05/27/1980 | US4205354 Music director system |
| 05/27/1980 | US4205353 Combination device having a magnetic recording and reproducing unit and an electronic tuning type receiver |
| 05/27/1980 | US4205260 Motor control system |
| 05/27/1980 | CA1078510A1 Magnetically recording and reproducing apparatus |
| 05/27/1980 | CA1078509A1 Read/write apparatus for magnetic recorders |
| 05/27/1980 | CA1078453A1 Hgh stability digital head servo for video recorders |
| 05/27/1980 | CA1078422A1 Mini-collator/sorter |
| 05/15/1980 | WO1980001027A1 Apparatus for driving laminated tape used for automatic answering telephone or the like |
| 05/15/1980 | WO1980001015A1 Magnetic reproducer |
| 05/13/1980 | US4203138 Video signal recording system with delayed vertical sync |
| 05/13/1980 | US4203043 Tristate changeover switching circuit |
| 05/13/1980 | US4202513 Tape end detector for reel driven cassette tape recorder |
| 05/13/1980 | US4202220 Solenoid actuated control system |
| 05/13/1980 | CA1077619A2 Magnetic tape cassette |
| 05/13/1980 | CA1077618A1 Detection device for detecting ends of a cassette tape |
| 05/06/1980 | US4202021 Front-loaded cassette tape deck |
| 05/06/1980 | US4201356 Cartridge arrangement comprising an adapter |
| 05/06/1980 | CA1077172A1 Random access recording and/or playback system |
| 05/06/1980 | CA1077007A1 Reversible drive transmission for strip handling systems |
| 04/29/1980 | US4200895 Scanning head structure for wide band magnetic record/reproducing tape and method of its manufacture |
| 04/29/1980 | US4200893 Instruction indicating apparatus for a record and/or playback device |
| 04/29/1980 | US4200278 Sorting apparatus for reproduction machine producing simplex and duplex copies |
| 04/29/1980 | US4200250 Pressure pad support for a cassette |
| 04/29/1980 | CA1076698A1 Endless loop recorder having temperature compensated tensioning |
| 04/29/1980 | CA1076697A1 Arrangements for time base error compensation |
| 04/22/1980 | US4199796 Tape guide arrangement for a transversely scanning magnetic recorder |