| Patents for G11B 27 - Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel (59,746) |
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| 01/15/1985 | CA1181169A1 Pcm signal recording system |
| 01/15/1985 | CA1181167A1 Editing system for audio signals |
| 01/15/1985 | CA1181166A1 Method and apparatus for detecting an edit point on a record medium |
| 01/09/1985 | EP0130485A1 Control apparatus over recording of scenes for use in image recording system |
| 01/09/1985 | EP0130391A2 A method of, and apparatus for, retrieval of information from an optical medium, and optical media |
| 01/08/1985 | US4493068 Pick-up point dislocation detecting device in recording a disc player |
| 01/08/1985 | US4492989 Time base correcting apparatus |
| 01/03/1985 | WO1985000069A1 Apparatus for recording and reproducing signal |
| 01/03/1985 | WO1985000066A1 Synchronizing circuit |
| 01/02/1985 | CA1180443A Control system for flexible disk file |
| 01/02/1985 | CA1180442A Psk modulation in ac bias data recording |
| 01/01/1985 | US4491941 Reproducing stylus for an information signal recording medium |
| 01/01/1985 | US4491882 For reproducing an information signal |
| 01/01/1985 | US4491879 Method of post production sound recording for video taped programs |
| 12/27/1984 | CA1180113A Magnetic reproducing apparatus |
| 12/27/1984 | CA1180050A Method of and apparatus for, generating a unique index mark from the commutation signal of a d.c. brushless motor |
| 12/25/1984 | US4490810 Automated instruction, game and data retrieval system |
| 12/20/1984 | WO1984004992A1 Disc-shaped recording medium |
| 12/20/1984 | WO1984004990A1 A system and method for organizing and managing data stored on an informational disk |
| 12/19/1984 | EP0128577A2 Rotating head type magnetic record/reproduce apparatus |
| 12/19/1984 | EP0128426A2 Video signal recording and reproducing apparatus |
| 12/18/1984 | US4489398 Address indicator control device in a rotary recording medium reproducing apparatus |
| 12/18/1984 | US4489354 Information recording system with recording process monitoring function |
| 12/18/1984 | US4489352 Video tape recording/reproducing apparatus having an auto tracking function |
| 12/18/1984 | CA1179750A1 Digital synchronising system |
| 12/12/1984 | EP0128093A1 A general technique to add multilingual speech to videotext systems at a low data rate |
| 12/11/1984 | US4488279 Video recorder-playback machine |
| 12/11/1984 | US4488278 Coding system for digital audio disc record |
| 12/11/1984 | US4488277 Control system for an optical data recording apparatus |
| 12/11/1984 | US4488185 Assemble editing system for video tape recorder |
| 12/11/1984 | US4488184 Videodisc playback system |
| 12/04/1984 | US4486796 Apparatus and method for controlling the position of a rotary head |
| 12/04/1984 | US4486789 Magnetic recording and/or reproducing apparatus |
| 12/04/1984 | US4486780 Sequential data block address processing circuits |
| 11/28/1984 | EP0126682A1 Method and apparatus for calibrating the optical power applied to an optical disc for data recording |
| 11/28/1984 | EP0126147A1 Data storage devices |
| 11/27/1984 | US4485451 System for monitoring dynamic parameters of magnetic heads |
| 11/27/1984 | US4485412 Rotary recording medium reproducing apparatus capable of performing high-speed search operation |
| 11/27/1984 | US4485411 System for deleting picture information |
| 11/21/1984 | EP0125922A2 Apparatus for detecting regularly occurring signal sequence in a data stream |
| 11/20/1984 | US4484174 Video disc player having improved squelch system |
| 11/14/1984 | EP0125026A2 An apparatus for recording a video signal |
| 11/14/1984 | EP0125002A2 Programmable longitudinal time code generator utilizing a synchronous programmable parallel-to-serial data converter. |
| 11/14/1984 | EP0124770A1 Data recording/reproducing apparatus |
| 11/13/1984 | US4482926 Method and apparatus for magnetic recording and reproducing |
| 11/13/1984 | US4482925 Quick-motion reproducing system in a rotary recording medium reproducing apparatus |
| 11/13/1984 | CA1177969A1 Audio/video editing system having touch responsive function display screen |
| 11/13/1984 | CA1177955A1 Rotary recording medium reproducing apparatus |
| 11/13/1984 | CA1177954A1 Rotary recording medium and a recording system thereof |
| 11/08/1984 | WO1984004417A1 Optical recording and reproducing apparatus |
| 11/07/1984 | EP0124043A1 Apparatus for dubbing videotape |
| 11/07/1984 | EP0123946A1 Reproducing rate control apparatus for information recording disc |
| 11/06/1984 | US4481412 Interactive videodisc training system with bar code access |
| 10/31/1984 | EP0123656A1 Stranding machine provided with dynamically compensated wire supporting bow |
| 10/31/1984 | EP0123652A1 Cueing method of sequences recorded on a magnetic tape |
| 10/30/1984 | US4480280 Rotary recording medium reproducing apparatus address search |
| 10/30/1984 | US4480277 Information processing system |
| 10/30/1984 | US4480275 Constant current biased head driver |
| 10/30/1984 | US4480274 Record verify and optimize system |
| 10/30/1984 | US4480273 Information recording device |
| 10/30/1984 | US4480224 System for indicating the direction and net distance travelled by a medium containing a periodic asymmetrical flux pattern |
| 10/30/1984 | CA1177162A1 Magnetic tape cassette comprising a device for detecting the winding of the tape |
| 10/24/1984 | EP0122467A2 Image information registering/retrieving system |
| 10/23/1984 | US4479159 Process for detecting transported and residual tape amounts |
| 10/23/1984 | US4479150 Methods and arrangements for changing the audio information in an audio/video recording/reproduction system |
| 10/23/1984 | US4479146 Vertical code verifier |
| 10/23/1984 | CA1176750A1 Coded signal reproducing apparatus |
| 10/17/1984 | EP0121590A2 Disk drive alignment analyzer |
| 10/16/1984 | US4477848 Verification of recorded messages |
| 10/16/1984 | US4477847 Television signal disc drive recorder |
| 10/16/1984 | US4477843 System for still or slow-motion reproduction of television pictures |
| 10/16/1984 | CA1176320A1 Signal wave control circuit |
| 10/10/1984 | EP0121097A2 Identification field scan apparatus in a multiple transducer data storage device |
| 10/10/1984 | EP0046323B1 Method of writing and reading sector-organized information into and out of a record carrier body and device for performing the method |
| 10/09/1984 | US4476499 Video disc recording and reproducing system |
| 10/03/1984 | EP0120420A1 Retrieval signal recording apparatus for magnetic tape recording/reproducing apparatus |
| 10/02/1984 | US4475153 Method and apparatus for automatic control of electronic equipment |
| 10/02/1984 | US4475132 Interactive video disc systems |
| 09/27/1984 | WO1984003791A1 Video cassette play counting, storing and reading system |
| 09/25/1984 | US4473854 Cassette tape recorder |
| 09/25/1984 | US4473853 Controller for a videotape recorder, and a method therefor |
| 09/19/1984 | EP0119101A2 Improvements in stereophonic motion picture photographic sound-tracks and apparatus for recording and playing back photographic sound tracks |
| 09/18/1984 | US4472795 Periodical signal detection circuit within a variable window length |
| 09/18/1984 | US4472750 Data record with pre-recorded transducer positioning signals, and system for utilizing same |
| 09/18/1984 | CA1174761A1 Feedback control circuit for photosensors in magnetic tape drives |
| 09/13/1984 | WO1984003583A1 System for sensing the rotational position of a rotating disk having coarse seek tracks |
| 09/13/1984 | WO1984003580A1 Data transfer system using digital disc |
| 09/12/1984 | EP0117910A1 Apparatus for signal evaluation by accumulation at one rate and releasing and testing at a slower rate |
| 09/12/1984 | EP0117909A1 Method of and apparatus for evaluating the audio characteristics under the control of a video picture frame number |
| 09/12/1984 | EP0117908A1 Method of and apparatus for analyzing the signal transfer characteristics of a signal processing unit |
| 09/11/1984 | US4471391 Tape timer for tape recorder/reproducer |
| 09/11/1984 | CA1174365A1 Pcm signal processing circuit |
| 09/11/1984 | CA1174329A1 Synchronizing signal detecting circuit |
| 09/05/1984 | EP0117357A2 Digital signal composing circuits |
| 09/04/1984 | US4470085 Cue signal-recording apparatus |
| 08/28/1984 | US4468752 Data synchronization apparatus |
| 08/28/1984 | US4468693 Video printing apparatus |
| 08/22/1984 | EP0116204A1 Servo system for an optical memory |
| 08/22/1984 | EP0116135A1 Method of evaluating and apparatus for analyzing recording characteristics of a recording medium with a prescribed analog electrical signal |
| 08/22/1984 | EP0116076A1 Tape editing method and apparatus |