Patents
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)
08/1979
08/07/1979US4163533 Tape cassette
08/07/1979US4163532 Tape speed control servomechanism for a magnetic tape cassette apparatus
07/1979
07/31/1979US4163267 Flying head with compound-foil
07/31/1979US4163266 Magnetic tape scanning assembly for use in video tape recorder and playback apparatus
07/31/1979US4163263 Method and apparatus for tape recording time-spaced segments of video information from a video camera
07/31/1979US4163262 Helical video tape recorder arrangement suitable for high quality editing
07/31/1979US4162774 Belt drive cartridge
07/31/1979US4162756 Automatic stop mechanism
07/31/1979CA1059618A1 Servo-control system for signal recording and/or reproducing apparatus
07/31/1979CA1059617A1 Magnetic recorder test article and methods
07/24/1979US4162051 Tape recorder having magnetically controlled tape tensioning
07/17/1979US4161758 Loop forming audio drive
07/17/1979CA1058749A1 Container for magnetic tape
07/17/1979CA1058748A1 Magnetic-tape recording and/or playback apparatus
07/10/1979US4161007 Magnetic tape cassette apparatus
07/10/1979US4161006 Tape cassette-ejecting inhibiting device for a magnetic tape apparatus
07/10/1979US4161002 Power conserving motor control circuit for a video tape recorder
07/10/1979US4161001 Video signal reproducing apparatus with a manually controlled track searching arrangement
07/10/1979CA1058299A1 Rotational position sensor
07/10/1979CA1058138A1 Interbiased double tape spool assembly
07/03/1979US4160281 Cassette changer
07/03/1979US4160195 Tape control apparatus
07/03/1979US4159812 Apparatus for loading a tape cassette
07/03/1979US4159811 Tape transport cartridge
07/03/1979US4159810 Cassette re-winding device
07/03/1979CA1057850A1 Magnetic head switching system
07/03/1979CA1057719A1 Bi-directional rotary drive mechanism
06/1979
06/27/1979EP0002479A1 Apparatus for loading/unloading a tape cassette, particularly a magnetic tape cassette
06/26/1979US4159495 Opening and closing device for cassette holder of tape recorder or the like
06/26/1979US4159492 Automatic reverse apparatus for magnetic recorder/player
06/26/1979US4159491 Quadrabell carillon instrument
06/26/1979CA1057395A1 Magnetic recording and reproducing system with tape-to-head speed control
06/26/1979CA1057394A1 Adapter for use in transcribers
06/19/1979US4158870 Reflecting means for visual inspection of magnetic tape head
06/19/1979US4158865 Automatic switching device for cassette tape recorder
06/19/1979US4158857 Jitter measuring apparatus
06/12/1979US4157865 Transport mechanism for sound cine camera or the like
06/12/1979CA1056357A1 Mounting of parts on a chassis or base plate
06/05/1979US4157575 Tape end warning apparatus
06/05/1979US4157571 Frame-by-frame memory display system
06/05/1979US4157488 Apparatus and method for controlling a tape drive to maintain a substantially constant linear tape velocity
06/05/1979CA1056053A1 Method and apparatus for supporting tape along a path of a rotating head
05/1979
05/29/1979US4156881 Electro-mechanical device for controlling a magnetic recorder
05/29/1979CA1055607A1 Tape sensing device for magnetic tape recording and/or reproducing apparatus
05/22/1979US4156260 Cartridge-loading tape recorder
05/22/1979US4156259 Tape recorder in which a cassette tape and a card are co-used
05/22/1979US4156258 Head positioning device for multi-track tape recorders
05/22/1979US4156257 Motor control circuit for tape drive unit
05/22/1979US4155497 Tape transport mechanism for recording/reproducing apparatus, particularly for video tape recording use
05/22/1979CA1055158A1 Magnetic recording apparatus
05/22/1979CA1055153A1 Magnetic recording and reproducing apparatus
05/22/1979CA1055152A1 Mode selector lockout mechanism for a cassette tape recorder/reproducer
05/22/1979CA1054999A1 Tape cassette
05/16/1979EP0001820A1 Tape transport mechanism, particularly for a magnetic recording tape
05/15/1979CA1054710A1 Tape cartridge release assembly
05/15/1979CA1054709A1 Magnetic tape transport
05/15/1979CA1054708A1 Fluid bearing for tape guide
05/08/1979US4153919 Protective hood for cassette tape recorders
05/08/1979US4153918 Dual capstan tape transport mechanism
05/08/1979CA1054255A1 Means and method of tape guide control
05/08/1979CA1054121A2 Tape cartridge drive
05/03/1979WO1979000226A1 Driving method for a recording tape and apparatus for a telephone answering system
05/02/1979EP0001583A1 Spool having an external hook for winding tapes and the like
05/01/1979US4152738 Magnetic tape recording and/or reproducing apparatus
05/01/1979US4152737 Magnetic recording and reproducing apparatus for use with either a tape cassette or a tape cartridge
05/01/1979US4152735 Tape transport arrangement for tensioning and transporting a magnetic tape
05/01/1979US4152734 Automatic tracking for a playback transducer
05/01/1979US4152732 Device for controlling the recording and playback by a tape recorder
04/1979
04/24/1979USRE29976 Tape cartridge which is normally closed but is pivoted to open position when taken into use, and transport apparatus for such a cartridge
04/24/1979US4150773 Guide roller construction for magnetic tape recording/reproducing systems, and especially for video tape systems
04/17/1979US4150410 Cassette tape loading device
04/17/1979US4150409 Channel repeat attachment
04/17/1979US4150408 Thin-film magnetic head for reading and writing information
04/17/1979US4150405 Remote control device for automatic telephone answering system
04/17/1979US4150261 Method of and system for priority transcribing of dictation
04/17/1979US4150017 Device for recording and reproducing signals with a tape-like carrier
04/17/1979CA1052903A2 Time-base error correction system
04/10/1979US4149204 Minor bit reduction on a magnetic head
04/10/1979US4149203 Tape recorder
04/10/1979US4149202 Power-transmitting system for use in cassette tape recorder
04/10/1979US4149043 Cassette tape recorder with radio receiver
04/10/1979US4148443 Tape cartridge
04/10/1979CA1052467A1 Cassette and apparatus for recording and/or reproducing information
04/10/1979CA1052461A1 Tape transport reel servomechanism
04/10/1979CA1052433A1 Cylindrical core with toroidal windings at angularly spaced locations on the core, and method of producing the same
04/10/1979CA1052355A1 Magnetic tape cartridge, more particularly a miniature cartridge
04/10/1979CA1052352A1 Reversible tape drive apparatus
04/03/1979US4148081 Volume controlled tape end alarm for tape recorder
04/03/1979US4147898 Recording and/or reproducing apparatus mode control system
04/03/1979US4147315 Tape transport apparatus
04/03/1979US4147314 Winding tool for magnetic tape cassettes
03/1979
03/27/1979US4146194 Floating roller tape cartridge
03/27/1979CA1051558A1 Method and apparatus for dynamically controlling read/write operations in a peripheral subsystem
03/27/1979CA1051546A1 Combination end of tape sensor and tape guide device
03/27/1979CA1051545A1 Recording and playback apparatus
03/20/1979US4145727 Cassette control mechanisms for magnetic cassette type recorders
03/20/1979US4145724 Automated magnetic tape cartridge retrieval handling and replay machine
03/20/1979US4145016 Tensioning apparatus
03/20/1979CA1051115A1 Magnetic video recording and reproducing apparatus
03/20/1979CA1051087A1 Biasing arrangement for a corona discharge device