| Patents for G11B 27 - Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel (59,746) |
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| 09/11/1990 | US4956726 Information signal reproducing apparatus in which control signal condition and information signal level are varied so as to correspond |
| 09/11/1990 | US4956725 Image signal reproducing apparatus |
| 09/11/1990 | CA1274016A1 Optical disk duplicating apparatus and duplicated optical disk |
| 09/08/1990 | WO1990010906A1 Method of reading and writing files on nonerasable storage media |
| 09/06/1990 | DE4004822A1 Speech recorder with several tape tracks - has facility for adding speech parts onto second track |
| 09/05/1990 | EP0385767A2 Video phone system |
| 09/05/1990 | EP0385498A2 Recording and reproducing apparatus for optical disk |
| 09/04/1990 | US4955022 Encoding apparatus and method for error correction |
| 09/04/1990 | CA1273710A1 Magnetic tape system with command prefetch means |
| 08/31/1990 | CA2011136A1 Video phone system |
| 08/31/1990 | CA2006128A1 Error checking device in a digital audio tape recorder and a method therefor |
| 08/30/1990 | DE4006172A1 Video telephone system with digital video data transmission - allows recording of video data together with date and time |
| 08/30/1990 | DE4005769A1 Error checking in digital tape recorder - has separate heads to provide data for checking against main buffer data |
| 08/30/1990 | DE3905841A1 Dictating machine |
| 08/29/1990 | EP0384405A2 Optical recording and reproducing apparatus |
| 08/29/1990 | EP0384073A2 Disc playing apparatus |
| 08/29/1990 | CN2061326U Pick-up transfer mechanism of disk-type recording medium reproducing device |
| 08/28/1990 | US4953153 Data reproducing device controlling image display dependent upon loss of time data |
| 08/28/1990 | US4953040 Time code reader in a device for reproducing video signals from magnetic tape |
| 08/28/1990 | US4953039 Real time digital data transmission speed conversion system |
| 08/28/1990 | US4953035 Method of recording and reproducing picture information, recording medium, and recording medium playing apparatus |
| 08/22/1990 | EP0383530A1 Information reproducing system |
| 08/22/1990 | EP0383529A1 Information reproducing system |
| 08/22/1990 | EP0383528A1 Information reproducing system |
| 08/22/1990 | EP0383451A1 Optical disc recording and reproducing apparatus |
| 08/22/1990 | EP0383274A1 Recording and/or reproducing method for tape recorder |
| 08/22/1990 | EP0383145A1 Apparatus for recording and reproducing signals |
| 08/22/1990 | EP0383094A2 Method and apparatus for reading navigation data from a compact-disc |
| 08/22/1990 | EP0382959A2 Digital signal recording and playback apparatus |
| 08/21/1990 | US4951276 Recording apparatus with switch actuated memory storage of recording medium removal or loading and backup power supply for memory |
| 08/21/1990 | US4951155 Apparatus and method for synchronizing videodisc images with audio signals |
| 08/21/1990 | US4951154 Magneto-optic recording/reproducing apparatus |
| 08/16/1990 | EP0382494A1 Method for controlling recording medium player and tape decks |
| 08/16/1990 | EP0382154A2 Optical disc recording system |
| 08/16/1990 | EP0382062A2 Electronic circuits including atomic probe |
| 08/16/1990 | EP0381807A2 Method and apparatus for recording and reproducing information including plural channel audio signals |
| 08/16/1990 | EP0381705A1 Method for transmitting compressed digital video signals |
| 08/16/1990 | DE3904530A1 Arrangement and process for magnetic information storage |
| 08/14/1990 | US4949325 Method and associated apparatus and medium for optical recording and reproducing information |
| 08/14/1990 | US4949323 Disk reproduction apparatus and method for high speed accessing of desired information data by checking address data |
| 08/14/1990 | US4949322 Random-play control system in disk player |
| 08/14/1990 | US4949200 Method and apparatus for encoding and mapping magnetic disk sector addresses |
| 08/14/1990 | US4949199 Magnetic recording/reproduction apparatus |
| 08/14/1990 | US4949197 Dead track acquisition for phase-locked loop control |
| 08/14/1990 | US4949193 Video composition method employing action scrolling |
| 08/14/1990 | US4949187 Video communications system having a remotely controlled central source of video and audio data |
| 08/14/1990 | US4949173 Security surveillance system with intermittent magnetic recording/reproducing device |
| 08/14/1990 | US4949036 Disc drive error mapping using threshold comparison methods |
| 08/09/1990 | WO1990009662A1 Method of recording cue signal and detector therefor |
| 08/09/1990 | WO1990008999A1 Read/write head buffer |
| 08/09/1990 | WO1990006572A3 Process and device for cleaning magnetic heads |
| 08/09/1990 | DE3903165A1 Magnetic tape apparatus for the digital recording and reproduction of audio or video signals |
| 08/09/1990 | DE3903163A1 Magnetic tape apparatus for the digital recording and reproduction of audio or video signals |
| 08/08/1990 | EP0381208A2 Device for digital recording and reproducing of audio or video signals |
| 08/08/1990 | EP0380746A2 Recording medium playing apparatus |
| 08/08/1990 | EP0380745A2 Disc playing apparatus |
| 08/08/1990 | EP0380574A1 Memory spaced array for storing relational data. |
| 08/07/1990 | US4947383 Machine readable markers for cartesian information storage media |
| 08/07/1990 | US4947367 System for converting digital data from magnetic tape format apparatus and method for converting a sequentially accessible magnetic tape data format to directly accessible write-once disk data format to worm optical disk format |
| 08/07/1990 | US4947271 Multi-channel recording apparatus |
| 08/07/1990 | US4947270 Video cassette rewind apparatus |
| 08/07/1990 | US4947265 Apparatus and method for recording or reproducing still video and audio information and having after recording editing capability |
| 08/02/1990 | DE4002179A1 Image storage with data compression of partial images - involves division of image into portions contg. number of pixels compatible with size of display screen |
| 08/01/1990 | EP0380323A1 Optically writable record of digital information and recording apparatus therefor |
| 08/01/1990 | EP0227530B1 Method for recording with updating and for the reproduction of data on a non-erasable sectorial record carrier |
| 08/01/1990 | CN1044359A Random locating dubbing installation for computer-aided teaching |
| 07/31/1990 | US4945441 Zero-cross point detecting circuit |
| 07/31/1990 | US4945439 Sync crosstalk cancelling circuit |
| 07/31/1990 | US4945429 In a data processing system |
| 07/31/1990 | US4945428 Method of managing a media library |
| 07/31/1990 | US4945425 Method and an apparatus for controlling a video cassette recorder |
| 07/26/1990 | WO1990008442A1 Dual communication mode video tape recorder |
| 07/26/1990 | WO1990008359A1 Interactive video control system |
| 07/26/1990 | DE3901747A1 Method of numbering titled recording pieces in R-DAT systems |
| 07/25/1990 | EP0379445A2 Disk recording and/or reproducing apparatus |
| 07/25/1990 | EP0379444A2 Audio after recording apparatus |
| 07/25/1990 | CN1008952B Information reproducing and recording apparatus |
| 07/24/1990 | US4944037 Optical system for recording information in erasable and non-erasable modes |
| 07/24/1990 | US4943872 Magnetic recording and reproducing device |
| 07/24/1990 | US4943866 Video composition method and apparatus employing smooth scrolling |
| 07/20/1990 | CA2007362A1 Audio after recording apparatus |
| 07/18/1990 | EP0378449A2 Information recording and retrieval system |
| 07/18/1990 | EP0378393A2 Dynamic image editor apparatus |
| 07/18/1990 | EP0378250A2 Method and apparatus for editing information data on slant tracks on a magnetic tape |
| 07/18/1990 | EP0378222A1 Magnetic recording medium and method of magnetically recording and reading data |
| 07/18/1990 | EP0378121A2 User aid for electronic entertainment devices |
| 07/17/1990 | US4942609 Electronic flying integrity tester for disk drives |
| 07/17/1990 | US4942565 Apparatus for recording a wobbling, spiral guide groove on an optical disc |
| 07/17/1990 | US4942551 Method and apparatus for storing MIDI information in subcode packs |
| 07/17/1990 | US4942487 Apparatus for recording/reproducing a digital signal at variable speeds |
| 07/17/1990 | US4942486 Recording disk having read-only recording area and writable recording area and a driving apparatus therefor |
| 07/12/1990 | WO1990007843A1 Audio/video recorder/transceiver |
| 07/11/1990 | EP0377474A2 Apparatus for automatically supplying tape cassettes |
| 07/11/1990 | EP0377340A2 Recording/reproducing device |
| 07/11/1990 | CN1008785B Method of and apparatus for recording and/or reproducing picture signal and associated audio signal in/from record carrier |
| 07/10/1990 | US4941139 Checking media operations and recording during optical recording |
| 07/10/1990 | US4941058 Data signal recording/reproduction apparatus of a VCR |
| 07/05/1990 | DE3943220A1 Automatic audio or video tape search process - having initialisation process combined with routine and execute tape search |
| 07/05/1990 | DE3929474A1 Setting video recording termination timing - using steps of timer selection, termination time sitting and termination in accordance with lapse of time |
| 07/04/1990 | EP0376756A2 Recording/reproducing device |