| Patents for G11B 27 - Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel (59,746) |
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| 09/04/1979 | CA1061897A1 Signal detection during variable speed tape movements |
| 08/28/1979 | CA1061458A1 Time lapse video tape recorder |
| 08/21/1979 | US4165531 Data generator for disc file addresses |
| 08/21/1979 | US4165522 Video recorder and playback unit including remotely operable timed fast forward advance |
| 08/07/1979 | US4163600 Light beam scanner |
| 07/31/1979 | US4163263 Method and apparatus for tape recording time-spaced segments of video information from a video camera |
| 07/31/1979 | US4163262 Helical video tape recorder arrangement suitable for high quality editing |
| 07/31/1979 | CA1059626A1 Audio information device |
| 07/17/1979 | US4161753 Video recording disk with interlacing of data for frames on the same track |
| 07/10/1979 | US4161001 Video signal reproducing apparatus with a manually controlled track searching arrangement |
| 07/03/1979 | CA1057849A1 Data read-write apparatus for a magnetic recording medium |
| 06/28/1979 | WO1979000352A1 Method and apparatus for measuring and indicating the winding stage of a tape |
| 06/26/1979 | US4159490 Apparatus for automatically synchronizing the operation of a device, for presenting audio information to occupants of a vehicle, to correspond with its movement along a predetermined route |
| 06/26/1979 | US4159480 Method of inserting an address signal in a video signal |
| 06/26/1979 | CA1057398A2 Apparatus and method for stabilizing light beam modulation of a videodisc |
| 06/26/1979 | CA1057395A1 Magnetic recording and reproducing system with tape-to-head speed control |
| 06/19/1979 | CA1056944A1 Method of detecting alterations in signals corresponding to the read-out of a data carrier and system for implementing such a method |
| 06/12/1979 | CA1056498A1 Method and apparatus for inserting data records on magnetic tape |
| 06/05/1979 | US4157575 Tape end warning apparatus |
| 06/05/1979 | US4157571 Frame-by-frame memory display system |
| 06/05/1979 | CA1056055A1 Storage system having a universal disk drive and a family of data modules |
| 05/22/1979 | CA1055151A1 Recording and/or playback apparatus |
| 05/03/1979 | WO1979000226A1 Driving method for a recording tape and apparatus for a telephone answering system |
| 04/24/1979 | US4151571 Method of writing addresses on a magnetic recording medium |
| 04/24/1979 | US4151566 Magnetic tape position measuring system |
| 04/24/1979 | CA1053374A2 Justifying, text writing composing and reproducing machine |
| 04/24/1979 | CA1053155A1 Central dictation system |
| 04/19/1979 | WO1979000213A1 Video editing system |
| 04/17/1979 | US4150435 Tape recorder with display function |
| 04/17/1979 | US4150405 Remote control device for automatic telephone answering system |
| 04/10/1979 | US4149199 Magnetic disc storage device with track centering correction |
| 04/03/1979 | US4148081 Volume controlled tape end alarm for tape recorder |
| 03/27/1979 | US4146910 Combined speed control and sectoring index for disc recorders and the like |
| 03/27/1979 | US4146312 Sound motion picture camera and sound motion picture system |
| 03/27/1979 | CA1051545A1 Recording and playback apparatus |
| 03/20/1979 | US4145758 Error checking method and apparatus for digital data in optical recording systems |
| 03/20/1979 | US4145724 Automated magnetic tape cartridge retrieval handling and replay machine |
| 03/20/1979 | US4145704 Television subcarrier phase correction for color field sequencing |
| 03/06/1979 | US4142729 Gramophone equipment |
| 02/27/1979 | USRE29921 Electrocardiographic computer |
| 02/27/1979 | US4142215 Tape drive tester |
| 02/27/1979 | US4142209 Disc track servo system |
| 02/20/1979 | US4141045 Random selection control system for recording tape cartridges |
| 02/20/1979 | US4140896 Electronic digital tape timer |
| 02/13/1979 | US4139872 Video signal reproducing apparatus with a track searching arrangement |
| 02/13/1979 | US4139870 Circuit for demodulating a pulse width modulated signal |
| 02/13/1979 | US4139869 High-resolution information storage and retrieval system including electronic refresh buffer |
| 01/30/1979 | US4137016 Valve mechanism for an air pump |
| 01/23/1979 | US4136365 Magnetic disc storage devices having compensation for dimensional changes |
| 01/23/1979 | US4135316 Tape cassettes having indications for blind use |
| 01/16/1979 | US4135216 Switching arrangement for a tape recorder |
| 01/16/1979 | US4135058 Dual tape transport system with related method and means for reducing cueing time |
| 01/09/1979 | US4134138 Method of reading addresses on a magnetic recording medium and apparatus for putting it into effect |
| 01/09/1979 | US4134130 Method and apparatus of inserting an address signal in a video signal |
| 12/26/1978 | US4131926 Magnetic tape and recording method therefor |
| 12/26/1978 | US4131920 Closed-clock writing system for a rotating magnetic memory |
| 12/19/1978 | US4130842 Circuit for generating a digital, deleted data, blinking cross signal which is stored in a deleted track and selectively displayed for detection |
| 12/19/1978 | US4130739 Circuitry for compression of silence in dictation speech recording |
| 12/12/1978 | US4129889 Magnetic recording/reproducing apparatus using cassette |
| 11/28/1978 | US4127879 Data read-write apparatus for a magnetic recording medium |
| 11/28/1978 | US4127770 Arrangement for synchronizing an information reading device with the speed of an information medium |
| 11/28/1978 | CA1043458A1 Color phase matching system for magnetic video tape recording |
| 11/21/1978 | US4126887 Method of controlling rotary memory |
| 11/21/1978 | US4126494 Magnetic transfer record film |
| 11/21/1978 | CA1043012A1 Transverse track location |
| 11/14/1978 | US4125881 Tape motion control for reel-to-reel drive |
| 11/14/1978 | US4125865 Recording system |
| 11/14/1978 | US4125844 Magnetic position marker for a tape recorder using magnetically alignable particles for making the mark |
| 11/07/1978 | US4124868 Head control means for optical videodisc player |
| 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 |
| 10/24/1978 | US4122500 Compiling device with manually varied automatic location determination |
| 10/24/1978 | US4122498 Event data recording apparatus with digitally encoded time and date |
| 10/24/1978 | US4121836 Stylus cartridge suspension for record players |
| 10/24/1978 | CA1041214A1 Missing clock detection circuit |
| 10/17/1978 | US4121264 Method for recording information signal and control signal |
| 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 |
| 10/10/1978 | US4120006 Random access recording and/or playback system |
| 10/10/1978 | CA1040303A1 Synchronization of multiple disc drives |
| 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 |
| 09/26/1978 | USRE29787 Color phase matching system for magnetic video tape recordings |
| 09/19/1978 | US4115821 Nonrecorded section detection in a tape recorder apparatus |
| 09/19/1978 | US4115819 System for the editing of a magnetic tape in one VTR with a portion of a signal reproduced from a tape on another VTR |
| 08/29/1978 | US4110801 Magnetic tape transducing apparatus |
| 08/29/1978 | US4110797 Magnetic recording reproducing apparatus with field generating means within the copy medium |
| 08/29/1978 | US4110142 Method of splicing multitrack sound recording tape |
| 08/22/1978 | US4109285 Tape machine and slide projector synchronizing device |
| 08/22/1978 | US4109198 Peak level indicating electronic circuit |
| 08/22/1978 | US4108365 Coin-operated recording machine |
| 08/08/1978 | US4106058 Data disc optical reader containing a device for automatic data access |
| 07/25/1978 | US4103334 Data handling system involving memory-to-memory transfer |
| 07/18/1978 | US4101943 Controlled-width-synchronization of recorded pixels |
| 07/11/1978 | US4100607 Computer for video tape editing system |
| 06/27/1978 | US4097906 Inter-record gap recording or playback apparatus |
| 06/27/1978 | US4097726 Tape ending indicator for tape recorder |
| 06/20/1978 | US4096523 Color correction system |
| 06/20/1978 | US4096486 Recorder |