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:
Mar. 17, 1992
Filed:
Nov. 01, 1990
Werner F Wedam, Lawrenceville, NJ (US);
Alvin Balaban, Lebanon, NJ (US);
SamSung Electronics Co., Ltd., Suwon, KR;
Abstract
In a video cassette recorder (VCR) including a video signal processing system having a source of a reference signal having a first frequency of 2.517 MHz, a clock signal generating circuit comprises a first frequency multiplier circuit of a balanced modulator type, having an input coupled to the source of a reference signal and having an output for providing a signal including a component having a second frequency of twice the first frequency. A filter arrangement has an input coupled to the output of the first frequency multiplier circuit, has an output, and has a response characteristic peak substantially at the second frequency. A second frequency multiplier circuit of a balanced modulator type, has an input coupled to the output of the bandpass filter arrangement and has an output for providing a signal including a component having a third frequency of twice the second frequency.