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.

Date of Patent:
Jul. 22, 2003

Filed:

May. 05, 1999
Applicant:
Inventors:

Hannu Haapakoski, Salo, FI;

Vesa Salonen, Salo, FI;

Kari Vigelius, Salo, FI;

Assignee:

Nokia Corporation, Espoo, FI;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G09G 5/00 ;
U.S. Cl.
CPC ...
G09G 5/00 ;
Abstract

A method and a device for filtered sync signals detection wherein a timing circuit is used to select the steep slope portion in one or both of the leading edge and the trailing edge of the sync signals; a voltage divider or feedback path to set a triggering point at the steep slope portion of the selected edge regardless the slope being positive or negative; and a triggerable device is used to generate new sync signals with the leading edge of each sync pulse starts at one triggering point and the trailing edge starts at another triggering point. Alternatively, a micro-controller is used to detect the polarity of the sync signals and accordingly provide a reference voltage in order to set the triggering point at the leading edge of the sync signals.


Find Patent Forward Citations

Haapakoski, Hannu. (2003). Method and device for filtered sync detection (U.S. Patent No. 6597352). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6597352

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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