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:
Sep. 24, 1991
Filed:
Apr. 10, 1990
Applicant:
Inventor:
Leif W Otto, Niles, IL (US);
Assignee:
Zenith Electronics Corporation, Glenview, IL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04N / ;
U.S. Cl.
CPC ...
455-1 ; 380-7 ;
Abstract
A channel converter system includes a local oscillator for converting an input RF television channel frequency signal to an intermediate frequency and for remodulating the intermediate frequency signal to produce a channel output signal at the same frequency. Video processing is accomplished between the input converter and the output remodulator. For baseband decoding, another oscillator demodulates the intermediate frequency signal and remodulates the processed video signal to the intermediate frequency signal.
Otto, Leif. (1991). Modulator-remodulator with common local oscilator (U.S. Patent No. 5052047). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5052047
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