Apparatus for compensating contour of television signal
US4912556A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Feb 23, 1989 |
| Grant date | Mar 27, 1990 |
| Priority date | — |
| Expiry date | Feb 23, 2009 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N5/208
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
There is provided an apparatus for compensating a contour of a television signal in a TV signal processing apparatus in which a predetermined control signal including a field interpolation control signal to control an interpolating method when reconstructing by an interpolation an image signal which was band compressed by the sub-Nyquist sampling is time sharingly multiplexed for a blanking period, wherein a signal of a still area processed by a still image system processing circuit and a signal of an animation area processed by an animation image system processing circuit are mixed by a mixing circuit every pixel, when the mixed signal is used as an input signal to the subsequent circuits, the OR of the binary signal of the movement amount and the field interpolation control signal transmitted from the transmission side is calculated, the still and animation areas are distinguished by the OR signal, and a contour is emphasized by a two-dimensional contour compensating circuit for the signal in the animation area.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.