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)
04/1980
04/22/1980US4199795 Cartridge receiving and locking mechanism
04/22/1980US4199794 Dual tape transport system with tensioning means
04/22/1980US4199793 Digital recording
04/22/1980US4199792 Tape end warning apparatus
04/22/1980US4199791 Automatic recording system
04/22/1980US4199766 Random-dump storage buffer for moving web
04/22/1980US4199092 Flexure mount for capstan motor
04/22/1980CA1076088A1 Automatic interruption mechanism suitable for magnetic-tape recording and/or playback apparatus
04/16/1980EP0009673A1 Recording and/or reproducing apparatus for information carriers provided with a magnetisable area
04/16/1980EP0009579A1 Control of operation for addressed accessing to recorded information sequences on electromotor-driven information carriers, in particular for magnetic tapes
04/16/1980EP0009550A1 Method and circuit for shortening the stopping distance of the tape in magnetic tape recorders
04/15/1980US4198665 Pivotable cassette holder for a magnetic tape recorder apparatus
04/15/1980US4198664 Nonrecorded section detection in a tape recorder apparatus
04/15/1980US4198549 Multiplexed central dictation system
04/15/1980US4198013 Tensioning means for belt driven tape cassette
04/15/1980CA1075809A1 Video tape recorder
04/08/1980US4196984 Cinecamera equipment capable of synchronous sound recording
04/08/1980US4196875 Magnetic tape recording and/or reproducing apparatus
04/08/1980US4196874 Drive apparatus for tape recorder
04/08/1980US4196873 Two tape-cartridge type magnetic-tape recording/reproducing apparatus
04/08/1980US4196872 Tape transport apparatus with translative friction force system
04/08/1980CA1075348A1 Dual motor web material transport system
04/08/1980CA1075163A1 Apparatus for variably selecting the capacity of a recording medium in a recording system
04/01/1980US4196457 Magnetic tape rotary headwheel assembly with venting means
04/01/1980US4196375 A.C. tape reel servo
04/01/1980US4195797 Tape cassette
04/01/1980CA1074911A1 Recording and/or reproducing apparatus control system
03/1980
03/25/1980US4195319 Apparatus for detecting information index signal from magnetic tape
03/25/1980US4194704 Auto shut-off apparatus for cassette tape recorder
03/25/1980US4194662 Web director
03/25/1980US4194661 Tape advancing methods and apparatus
03/25/1980CA1074443A2 Head to track alignment in a rotating head magnetic tape unit
03/25/1980CA1074442A2 Head to track alignment in a rotating head magnetic tape unit
03/25/1980CA1074440A1 Tape recorder
03/25/1980CA1074439A1 Method and apparatus for automatic dictation playback control
03/25/1980CA1074438A1 Dictation rate controller and method
03/19/1980EP0008920A1 Magnetic tape transport mechanism
03/18/1980US4194229 Mode selecting assembly for recording and/or reproducing apparatus
03/18/1980US4194222 Multitrack recorder including superimposed real time code
03/18/1980US4194196 Illuminated master calendar and message recording system
03/11/1980US4193103 Magnetic transducer head
03/11/1980US4193100 Control circuit
03/11/1980CA1073550A1 Tape playing machine
03/11/1980CA1073426A1 Tape transport arrangement for tensioning and transporting a magnetic tape
03/11/1980CA1073425A1 Device for the intermittent transport of record carriers in the form of a tape
03/04/1980US4191979 Device for extracting and positioning video tape from a cassette to around a slit head drum
03/04/1980CA1073099A1 Electric control system for magnetic sheet recording and reproducing apparatus for audiovisual instruction
03/04/1980CA1072993A1 Transport apparatus with differential force system
03/04/1980CA1072938A1 Tape cassette
03/04/1980CA1072934A1 Series coupling for springs
02/1980
02/26/1980US4190869 Slow motion tape driving system in a recording and/or reproducing apparatus
02/26/1980US4190215 Tape recorder stopping mechanism
02/26/1980CA1072678A1 Cleaning jacket
02/26/1980CA1072677A1 Electric device for use in a transcriber
02/26/1980CA1072676A1 Tape recorder
02/26/1980CA1072675A1 Solenoid operated transcriber mechanism
02/26/1980CA1072386A1 Pinch roller moving devices for simultaneous image and sound recording cinecameras
02/20/1980EP0008209A1 Composition for cleaning and surface treatment of phonograph records and similar objects and its use
02/19/1980US4189758 Apparatus for controlling the scanning path of a rotary transducer
02/19/1980US4189115 Auto-loading magnetic tape
02/19/1980US4189114 Fast rewinding device for cassette tapes
02/19/1980US4189113 Isolation pocket for rack mounted tape drive
02/19/1980US4189079 Controllable drive for tape recorder
02/19/1980CA1072204A1 Information retrieval machine
02/19/1980CA1072203A1 Magnetic recording system
02/12/1980US4188647 Cassette type tape recorder
02/12/1980US4187997 Vacuum control system for magnetic tape handler
02/12/1980CA1071767A1 Video disc player for playing records of different thickness
02/12/1980CA1071758A1 Mode selecting device for tape recording and/or reproducing apparatus
02/12/1980CA1071757A1 Head switching control apparatus for use in a video signal processing system
02/12/1980CA1071607A1 Tape cassette
02/06/1980EP0007494A1 Guiding device for a recording tape, in particular a magnetic tape
02/05/1980US4187522 Magnetic tape player comprising electromagnetic latch device
02/05/1980US4186891 Endless tape winding device
02/05/1980CA1071327A1 Cassette tape recording and/or reproducing apparatus
02/05/1980CA1071326A1 Automatic tape reel mount
02/05/1980CA1071325A1 Head to track alignment in a rotating head magnetic tape unit
01/1980
01/29/1980US4185795 Magnetic tape drive with friction compensation
01/29/1980US4185794 Gear-driven change-over mechanism
01/29/1980CA1070830A1 Magnetic tape cleaning and tensioning apparatus
01/29/1980CA1070829A1 Locking and drive mechanism for magnetic tape cartridge
01/29/1980CA1070828A1 Tape deck with drive motor remote from drive roller
01/29/1980CA1070826A1 Circuit for demodulating a pulse width modulated signal
01/23/1980EP0007200A1 Method and apparatus for controlling the reading of information from an information storage medium
01/22/1980CA1070423A1 Helical scan magnetic recording device having a folded mounting plate
01/15/1980US4184185 Cassette tape ejecting mechanism
01/15/1980US4184182 Control mechanism for the movements of a tape cassette in a tape cassette recorder
01/15/1980US4184181 Method and device for tracking video signals on a magnetic tape by detecting phase jumps
01/15/1980US4184180 File protect and amount of tape sensing apparatus
01/15/1980US4183475 Apparatus for mounting a hollow cylindrical member
01/15/1980CA1070010A1 Random selection control system for recording tape cartridges
01/09/1980EP0006754A1 Testing apparatus for cassette type tape recorders
01/09/1980EP0006238A1 Magnetic recording tape cartridge
01/09/1980EP0006142A1 Protective circuit arrangement for data recorded on a magnetic tape
01/08/1980US4183068 Magnetic tape transport mechanism
01/08/1980US4183067 Helical scan VTR with means for displacing head along track direction
01/08/1980CA1069613A1 Magnetic recording system
01/01/1980US4181272 Tape cassette reel
01/01/1980US4181271 Spool with external hooks for winding material in the form of tape
12/1979
12/27/1979WO1979001142A1 Transcriber having selectable word reproduction rate