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. 12, 1991
Filed:
Aug. 07, 1989
Applicant:
Inventors:
Rainer Fechner, VS-Villingen, DE;
Thomas Bekesi, Niedereschach, DE;
Assignee:
Electronic-Werke Deutschland GmbH, Villingen-Schwenningen, DE;
Primary Examiner:
Int. Cl.
CPC ...
G04C / ;
U.S. Cl.
CPC ...
368 47 ;
Abstract
A continuous time-of-day or date correction of a signal produced by a clock module is obtained from the data in a video-text or teletext signal that contains accurate time-of-day and/or date reference information. When the video-text/teletext data contain such reference information, the data of the output signal of the clock module are compared, on a continuous basis, with the received video-text/teletext. In case of a deviation between the clock module data and the reference information, a correction signal is applied to the clock module and corrects the clock module.