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. 17, 1976
Filed:
Jul. 02, 1974
Applicant:
Inventors:
Klaus Lohn, Johberg, BE;
Georg Lutteke, Aachen, DT;
Gerd Schiefer, Aachen, DT;
Lammert Bruntink, Eindhoven, NL;
Paulus Petrus Groenewegen, Eindhoven, NL;
Hans Viktor Weinerth, Eindhoven, NL;
Wilhelmus Antonius Zwijsen, Eindhoven, NL;
Karel Petrus Rooij, Eindhoven, NL;
Assignee:
U.S. Philips Corporation, New York, NY (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H04B / ;
U.S. Cl.
CPC ...
325432 ; 325453 ;
Abstract
The IC television tuner has a tunable oscillator and a fixed oscillator, two mixer stages and a filter in between. This tuner operates at two intermediate frequencies the first of which lies in the GHz range. The two oscillators are coupled through hybrid rings.
Lohn, Klaus. (1976). Tunable high frequency input circuit for a television receiver that (U.S. Patent No. 3939429). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/3939429
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile