British Broadcasting Corporation
🏢 View company profile →144Patents
32Active
144Granted
47Portfolio score
Filing activity: Apr 29, 1974 → Aug 24, 2023 · 5 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4283787A | Cyclic redundancy data check encoding method and apparatus | Electricity | 604 | Expired |
| US4329684A | Apparatus using a light sensing system for sensing time modulated information from a light emitting device | Physics | 331 | Expired |
| US6305180A | Cooling system for use in cooling electronic equipment | Electricity | 226 | Expired |
| US6556722B1 | Position determination | Electricity | 163 | Expired |
| US4885579A | Device for the remote control of a videorecorder or a videoreceiver | Electricity | 162 | Expired |
| US5610908A | Digital signal transmission system using frequency division multiplex | Electricity | 128 | Expired |
| US4890160A | TV picture motion vector measurement by correlation of pictures | Electricity | 127 | Expired |
| US4337485A | Broadcast teletext system | Electricity | 124 | Expired |
| US4843468A | Scanning techniques using hierarchical set of curves | Electricity | 119 | Expired |
| US5075773A | Data transmission in active picture period | Electricity | 109 | Expired |
| US6011596A | Video image motion compensation using an algorithm involving at least two fields | Electricity | 103 | Expired |
| US4862264A | Method of coding a video signal for transmission in a restricted bandwidth | Electricity | 85 | Expired |
| US5555305A | Method and apparatus for secure transmission of video signals | Electricity | 73 | Expired |
| US4322750A | Television display system | Emerging Cross-Sectional Technologies | 72 | Expired |
| US4903125A | Method and apparatus for conveying information signals | Electricity | 61 | Expired |
| US5502482A | Derivation of studio camera position and motion from the camera image | Electricity | 60 | Expired |
| US7327362B2 | Method and system for providing a volumetric representation of a three-dimensional object | Physics | 59 | Expired |
| US4873573A | Video signal processing for bandwidth reduction | Electricity | 57 | Expired |
| US7130443B1 | Watermarking | Electricity | 48 | Expired |
| US6285716A | Video compression | Electricity | 43 | Expired |
| USD381335S | Loudspeaker | General | 40 | Expired |
| US4905081A | Method and apparatus for transmitting and receiving 3D video pictures | Electricity | 39 | Expired |
| US6741290B1 | Processing coded video | Electricity | 39 | Expired |
| US5838734A | Compensation for local oscillator errors in an OFDM receiver | Electricity | 37 | Expired |
| USRE38420E1 | Derivation of studio camera position and motion from the camera image | General | 37 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.