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. 16, 1989
Filed:
Oct. 02, 1987
Yukio Suzuki, Tsurugashima, JP;
Toko Kabushiki Kaisha, Tokyo, JP;
Abstract
A RF tuning circuit according to this invention is composed of one tuned transformer (T.sub.1) at least and an untuned transformer (T.sub.2) so interconnected that the outputs from the respective transformers add up opposite in phase on that side of the resonant frequency of the tuned transformer where the image signal frequency is present and in phase on that side thereof where the image signal is absent and that the output amplitude levels of the respective transformers become equal at the image signal frequency corresponding to a particular receiving frequency as the resonant frequency is varied in response to the receiving frequency.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile