Patent · US Expired

Method for horizontal and vertical contour correction of a digitized analogue signal

US4360830A · kind A · utility

8Cited by

2References

9Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Dieter Poetsch · Ober-Ramstadt, DE
Werner Becker · Hirschhorn, DE
Helmut Radecke · Darmstadt, DE
Volker Massmann · Mühltal, DE

Key dates

Filing date	Sep 9, 1980
Grant date	Nov 23, 1982
Priority date	—
Expiry date	Sep 9, 2000

Classification

Technology area (CPC H)Electricity
CPC primaryH04N5/208
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

A method and apparatus is proposed for the H and V-contour correction of a digitized video signal wherein after deriving a digital correction signal, both the main video signal and the correction signal are D/A converted. The H and V-detail signals are then derived from the analogue correction signal, are combined with a contour correction signal and are added in a suitable manner to the main video signal.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.