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)
12/1990
12/04/1990US4975790 Tape recorder have reel stop detecting mechanism
12/04/1990US4975607 Frequency generator with superimposed generation coil
12/04/1990US4974790 Tape rewinding device
12/04/1990US4974788 Film spool with separate keeper
12/04/1990CA1277418C Video signal recording and/or reproducing apparatus
12/04/1990CA1277391C Motor control apparatus for reel-to-reel tape drive system
11/1990
11/29/1990WO1990014660A1 Helical scan-type rotary head drum unit
11/29/1990WO1990014658A1 Magnetic tape transport
11/29/1990DE3943354A1 Cassette housing for digital tape recorder - uses combination of levers, guides and studs to control insertion of cassette
11/28/1990EP0399812A2 Magnetic recording and reproduction apparatus
11/28/1990EP0399807A2 Cassette discriminating apparatus for magnetic recorders
11/28/1990EP0399607A2 System for detecting markings
11/28/1990EP0399497A2 A magnetic recording/reproducing apparatus in which tape cassettes of different sizes can be mounted
11/28/1990EP0398978A1 Public video recording system
11/28/1990CN1010625B Fitting construction of press springset of magnetic-tape casette for magnetic tape recorder
11/27/1990US4974111 Method and apparatus for electronically processing and rerecording recorded video signals
11/27/1990US4974102 Automatic changer for digital audio cassette tape player
11/27/1990US4974101 Method of monitoring the loading and unloading of a tape in recording and playback equipment
11/27/1990US4974100 Endless tapedrive system
11/27/1990US4973123 Electro-optical rotary coupling suitable for tape scanners
11/22/1990EP0398584A2 Loading and unloading apparatus for a cartridge
11/22/1990EP0398317A2 Cassette loading device for loading tape cassette having different shapes and different dimensions to a tape driving position
11/22/1990EP0398227A2 Magnetic recording and reproducing apparatus
11/22/1990EP0397766A1 Correction of long term drift and short term fluctuating corruption of a signal.
11/22/1990EP0397713A1 Contoured head assembly for use in a cassette loaded recorder.
11/22/1990EP0142565B1 Magnetic recording and reproducing apparatus
11/20/1990US4972278 Tape cassette driving system compatible with two cassette types of different sizes
11/20/1990US4972277 Cartridge transport assembly and method of operation thereof
11/20/1990US4970748 Apparatus for cleaning magnetic tape
11/15/1990DE4012273A1 Fernsteuereinheit Remote control unit
11/14/1990EP0397528A2 Tape cassette with tape leader detection improvements
11/14/1990EP0396985A2 Audio tape cassette apparatus for reverse mode operation
11/14/1990CN1010444B Method of fixedly mounting tape on core portion of reel made of plastics
11/14/1990CN1010440B Information reproducing and recording apparatus
11/13/1990US4970621 Demagnetization of thin film magnetic recording transducers utilizing a decreasing AC current
11/13/1990US4970614 Adjustable magnetic recording and reproducing head unit
11/13/1990US4970613 Head base supporting device in auto-reversal tape player
11/13/1990US4970612 Magnetic tape apparatus comprising a control unit for controlling tape buffers, the tape tension and the tape-transport
11/13/1990CA1276292C Tape loading device
11/13/1990CA1276291C Early end of tape sensing for a cache buffered tape drive
11/13/1990CA1276237C Program recording apparatus for electronic equipment
11/12/1990CA2014336A1 Tape cassette with tape leader detection improvements
11/08/1990DE3914789A1 Magnetic tape cassette equipment with lever-operated slider
11/07/1990EP0396362A2 Helical scan type playback apparatus for video data recorded on magnetic tape
11/07/1990EP0396234A2 One-way clutch assembly
11/07/1990EP0396187A2 Apparatus for recording of information signals
11/07/1990EP0396018A2 Magnetic tape back tension device for magnetic recording-reproduction system
11/07/1990EP0395820A1 Handling case for a reader of audio and/or video information recorded on a carrier such as a laser audio and/or video disc or any other optical carrier
11/06/1990US4969135 System of alternately operating disk players
11/01/1990WO1990013120A1 Cassette detector for cassette loading apparatuses
11/01/1990WO1990013119A1 Recorder with tape sensors for transient processes
11/01/1990WO1990013118A1 Video cassette recorder protection system
10/1990
10/31/1990EP0395364A2 A cassette tape recording and/or reproducing apparatus
10/31/1990EP0395356A2 Tape tension servo-system for video tape recording and/or reproducing apparatus
10/31/1990EP0395299A2 Drive means for recording and/or reproducing apparatus
10/31/1990EP0395193A2 Apparatus and method to improve uniformity of tent around scanner
10/31/1990EP0395086A1 Video tape recorder
10/31/1990EP0395054A2 Reel table shifting device
10/31/1990EP0395034A2 Mode switching mechanism for a recording and/or reproducing apparatus
10/31/1990EP0394975A2 Cassette loading apparatus
10/31/1990EP0394581A2 Stationary head tape drive
10/31/1990EP0394457A1 Magnetic recording/reproducing apparatus
10/31/1990EP0394241A1 Positioning device for magnetic tapes.
10/30/1990US4967290 Multiple channel rotary magnetic head scanner having stackable electro-optical signal transmission modules
10/30/1990US4967036 Arrangement for controlling the position of the head mounting plate in a magnetic tape apparatus
10/25/1990DE3913141A1 Video tape cassette with contactless tape course control - has locking and release mechanism operated by motor-driven pin from outside cassette contg. spring lever
10/25/1990DE3912999A1 Recorder mit bandsensoren fuer schaltvorgaege Tape recorder with sensors for schaltvorgaege
10/25/1990CA2015322A1 Tape tension servo-system for video tape recording and/or reproducing apparatus
10/24/1990EP0394008A2 Editing control system
10/24/1990EP0393995A2 Automatic tracking systems for magnetic recording and/or reproducing apparatus
10/24/1990EP0393955A1 Video recording apparatus
10/24/1990EP0393706A2 Rotary head drum for a video tape recorder
10/24/1990EP0393647A2 Portable recording and/or reproducing apparatus
10/24/1990CN2064530U Tape recorder set
10/24/1990CN1046407A Recorder with a winding and tape drive
10/23/1990US4965874 Magnetic recording and reproduction device with fast feed/rewind head to tape speed control
10/23/1990US4965683 Cassette loading device for recording and/or reproducing apparatus
10/23/1990US4965681 Magnetic recording apparatus of rotary magnetic type having cross-talk cancelling function
10/23/1990US4964589 Mode changing mechanism for a tape player
10/23/1990US4964557 Bidirectional web guiding system
10/23/1990US4964414 Electrode for use in implanting in a living body
10/23/1990CA1275501C Auto-reverse type tape recorder
10/23/1990CA1275500C Mode processing circuit
10/23/1990CA1275496C Apparatus for recording and/or reproducing an information signal
10/23/1990CA1275399C Attrition resistant catalysts, catalyst precursors and catalyst supports
10/21/1990CA2015011A1 Rotary head drum for a video tape recorder
10/18/1990WO1990012398A1 Magnetic head contour utilizing facets for air film skiving
10/18/1990WO1990012397A1 Recorder with wind and tape drive
10/18/1990WO1990012396A1 Remote controller for dubbing and video tape recorder with synchronous dubbing function
10/18/1990DE4011769A1 Digital audio magnetic tape cassette loader - has guidance slots for holder in two flanged sidewalls forming integral parts of frame around cassette holder from which pins protrude
10/18/1990DE4011597A1 In-car audio equipment with removable operating unit - has keyboard and display for programming of playback from discs or cassettes
10/18/1990DE3935150A1 Recorder mit einem wickel- und bandantrieb Recorder with a winding and tape drive
10/17/1990EP0392789A2 Tracking control device for a magnetic recording and reproducing apparatus
10/17/1990EP0392683A1 System for controlling head scan tracking utilizing tape position information
10/17/1990EP0392620A2 Apparatus for automatically accessing cartridges in an array
10/17/1990EP0392595A1 System comprising a cassette, apparatus suitable for cooperation with the cassette and cassette and apparatus suitable for use in such a system
10/17/1990EP0392491A2 Cassette tape recorder containing a loading mechanism
10/17/1990EP0392023A1 Tape transport
10/16/1990US4964008 Rotatable magnetic-head unit for a magnetic-tape apparatus
10/16/1990US4964002 Magnetic recording and reproducing apparatus having a pair of skew guide blocks