Issued Patents All Time
Showing 1–19 of 19 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8633960 | Communication device for processing person associated pictures and video streams | Nick Thorne | 2014-01-21 |
| 8311233 | Position sensing using loudspeakers as microphones | — | 2012-11-13 |
| 6192187 | Video recorder | — | 2001-02-20 |
| 6020882 | Television access control system | David R. Tarrant | 2000-02-01 |
| 5386238 | Combination TV receiver and teletext processor with on-screen message capability | Jeremy R. Stevens, David R. Tarrant | 1995-01-31 |
| 5184220 | Teletext decoder apparatus including feature of inhibiting generation of an end-of-page signal | Jeremy R. Stevens | 1993-02-02 |
| 4999706 | Teletext decoders with inhibit means for precluding over-writing codes in page memory | — | 1991-03-12 |
| 4933764 | Improved teletext decoder which accommodates an increased number of character codes | — | 1990-06-12 |
| 4908707 | Video cassette recorder programming via teletext transmissions | — | 1990-03-13 |
| 4719510 | Teletext decoders | — | 1988-01-12 |
| 4698677 | Television receiver arrangements | Richard E. F. Bugg | 1987-10-06 |
| 4584567 | Digital code detector circuits | — | 1986-04-22 |
| 4574386 | Dynamically operable two-phase logic circuits | — | 1986-03-04 |
| 4570154 | Data entry keyboard apparatus | Raymond J. Fisher, Terence A. Douglas | 1986-02-11 |
| 4485437 | Testing the presence of a peripheral device | — | 1984-11-27 |
| 4481579 | Digital data apparatus having a plurality of selectively addressable peripheral units | — | 1984-11-06 |
| 4431969 | Clock pulse phase shifter | Christopher P. Summers | 1984-02-14 |
| 4323892 | Alpha-numeric character generator arrangement | — | 1982-04-06 |
| 4306250 | Television receiver arrangement having means for the selective use of separated or locally generated synchronizing signals | Christopher P. Summers, Richard E. F. Bugg | 1981-12-15 |