The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 04, 2003
Filed:
Aug. 27, 2001
Applicant:
Inventor:
Thomas Graen, Darmstadt, DE;
Assignee:
Koninklijke Philips Electronics N.V., Eindhoven, NL;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03M 1/06 ;
U.S. Cl.
CPC ...
H03M 1/06 ;
Abstract
In a circuit arrangement for regenerating the black level of video signals during A/D conversion, in which a deviation of the black level of the digital video signals from a predetermined value influences the black level of the analog video signals, the scanning values obtained during the A/D conversion of the black level of the analog video signals are compared with the predetermined value. A ramp signal for tendency-compensating the deviations is superimposed on the analog video signals.