Video signal processing apparatus with pre-emphasis and de-emphasis for use in a recording and reproducing system
US4587576A · kind A · utility
12Cited by
1References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 22, 1983 |
| Grant date | May 6, 1986 |
| Priority date | — |
| Expiry date | Sep 22, 2003 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N5/923
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Video signal processing apparatus for processing video signals in which pre-emphasis of high frequency components of signals to be recorded is effected, and de-emphasis of high frequency components of reproduced signals is carried out. The pre-emphasis circuitry and de-emphasis circuitry is of the so called forward and backward type for weighting video signals inputted at past and future time frames.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.