Discovision Associates
DiscovisioActive Patents
0
Total Holdings
20
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| EP0748124A2 | Signal processing apparatus and method | Expired / Lapsed | 1996-03-19 | — | 13 | Details |
| EP0050366A1 | Video recorder-playback machine | Expired / Lapsed | 1981-10-20 | — | 24 | Details |
| EP0044072A1 | Apparatus and method for controlling focus in a recording s… | Expired / Lapsed | 1981-07-13 | — | 20 | Details |
| EP0028111A1 | Apparatus and method for optically recording an information… | Expired / Lapsed | 1980-10-20 | — | 13 | Details |
| EP0019924A1 | Method and apparatus for recording data signals on a record… | Expired / Lapsed | 1980-05-30 | — | 0 | Details |
| FR2399087A1 | APPARATUS AND METHOD FOR STORING AND RETURNING INFORMATION … | Expired / Lapsed | 1978-08-29 | — | 0 | Details |
| US4567531A | Vertical interval signal encoding under SMPTE control | Expired / Lapsed | 1982-07-26 | 1986-01-28 | 30 | Details |
| US4451913A | Video disc read back scanner | Expired / Lapsed | 1981-08-03 | 1984-05-29 | 5 | Details |
| US4441179A | Optical video disc structure | Expired / Lapsed | 1981-06-19 | 1984-04-03 | 4 | Details |
| US4375091A | Method and apparatus for information retrieval from an opti… | Expired / Lapsed | 1981-08-24 | 1983-02-22 | 20 | Details |
| US4358796A | Spindle servo system for videodisc player | Expired / Lapsed | 1980-03-17 | 1982-11-09 | 8 | Details |
| US4332022A | Tracking system and method for video disc player | Expired / Lapsed | 1980-03-17 | 1982-05-25 | 22 | Details |
| US4282598A | Video disc read back scanner | Expired / Lapsed | 1978-07-14 | 1981-08-04 | 13 | Details |
| USD258957S | Keyboard housing | Expired / Lapsed | 1978-05-22 | 1981-04-21 | 1 | Details |
| US4152586A | Optical transducer and focusing system | Expired / Lapsed | 1978-05-26 | 1979-05-01 | 61 | Details |
| US3944727A | Video disc player with movable mirror for directing light b… | Expired / Lapsed | 1974-05-01 | 1976-03-16 | 6 | Details |
| US3829622A | Video disc player with variably biased pneumatic head | Expired / Lapsed | 1972-10-24 | 1974-08-13 | 5 | Details |
| US3530258A | Video signal transducer having servo controlled flexible fi… | Expired / Lapsed | 1968-06-28 | 1970-09-22 | 0 | Details |
| US3518442A | Video playback assembly wherein the record disc has optical… | Expired / Lapsed | 1968-06-06 | 1970-06-30 | 0 | Details |
| US3430966A | Transparent recording disc | Expired / Lapsed | 1967-04-03 | 1969-03-04 | 0 | Details |