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. 27, 2007
Filed:
Jun. 24, 2004
Sanae Asayama, Aichi, JP;
Koji Nakatsuji, Gifu, JP;
Atsuhito Terao, Gifu, JP;
Yoshihide Tabata, Kyoto, JP;
Hideji Takami, Shiga, JP;
Masanori Suzuki, Aichi, JP;
Hirochika Kashima, Aichi, JP;
Sanae Asayama, Aichi, JP;
Koji Nakatsuji, Gifu, JP;
Atsuhito Terao, Gifu, JP;
Yoshihide Tabata, Kyoto, JP;
Hideji Takami, Shiga, JP;
Masanori Suzuki, Aichi, JP;
Hirochika Kashima, Aichi, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
An oscillation frequency changing means is inserted between a tuner and an oscillator of local oscillator () of a high frequency receiving device, and the oscillation frequency changing means, in each frequency band received, changes the oscillation frequency characteristic of local oscillator () in relation to the tuning voltage supplied from PLL circuit (), and operates in accordance with the frequency characteristic of tuning filter () to obtain an oscillation signal varied just by a predetermined frequency, thereby making it possible to receive broadband channels of continuous VHF broadcast band and UHF broadcast band.