Movement detector for use in television signal processing
US4730217A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 12, 1985 |
| Grant date | Mar 8, 1988 |
| Priority date | — |
| Expiry date | Jun 12, 2005 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N7/012
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A movement detector for detecting movement in a television picture comprises a local movement detector which produces an output signal as a result of comparing similar input signals from different fields and the detector output signal is processed in a field store processor which spreads the output signal in space and in time. The processor comprises a recursive loop, a field delay element and a look-up table, with the latter receiving as inputs the output from the recursive loop and the instantaneous input to the processor to produce a control signal output. A line interlace to non-interlace transformation circuit including such a movement detector is also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.