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:
Dec. 25, 2001
Filed:
Feb. 24, 1998
Applicant:
Inventors:
Toshiyuki Kawashima, N. Hundingdon, PA (US);
Toshiyuki Saigo, Kawasaki, JP;
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04N 1/700 ; H04N 3/26 ; H04N 3/23 ; H04N 9/28 ; G09G 1/28 ; H01J 2/951 ;
U.S. Cl.
CPC ...
H04N 1/700 ; H04N 3/26 ; H04N 3/23 ; H04N 9/28 ; G09G 1/28 ; H01J 2/951 ;
Abstract
A television system performs beam convergence in video displays. The system is implemented through one or more convergence sensors, which are exposed to two distinct convergence test patterns. The output signals from the sensors when exposed to the two convergence test patterns are used in beam convergence calculations. The convergence test patterns are selected to reduce the dynamic range requirement for an A/D converter in the television system supplied with the sensor output signals.