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:
May. 10, 1977
Filed:
Sep. 15, 1975
Applicant:
Inventor:
Keisuke Utsunomiya, Kadoma, JA;
Assignee:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04B / ;
U.S. Cl.
CPC ...
325462 ; 325489 ; 334 15 ;
Abstract
In an input circuit of a VHF television tuner tunable to the frequencies of a desired channel by varying a d.c. potential applied to a plurality of varactors provided therein, an impedance matching within the input circuit is carried out by adjusting the ratio of inductance of inductive elements provided for selecting the desired channel, and also one of the inductive elements is connected to a capacitor forming a wave trap therewith.
Utsunomiya, Keisuke. (1977). Input circuit of vhf television set tuner (U.S. Patent No. 4023106). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4023106
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile