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. 26, 2019
Filed:
Apr. 11, 2017
Applicant:
Funai Electric Co., Ltd., Daito-shi, Osaka, JP;
Inventors:
Assignee:
FUNAI ELECTRIC CO., LTD., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 26/08 (2006.01); H03K 5/13 (2014.01); H03B 5/32 (2006.01); G02B 26/10 (2006.01); H04N 3/08 (2006.01); H03B 5/24 (2006.01); H04N 1/04 (2006.01); H03K 5/01 (2006.01); H03B 5/20 (2006.01); H03K 5/00 (2006.01);
U.S. Cl.
CPC ...
G02B 26/0833 (2013.01); G02B 26/105 (2013.01); H03B 5/20 (2013.01); H03B 5/24 (2013.01); H03B 5/32 (2013.01); H03K 5/01 (2013.01); H03K 5/13 (2013.01); H04N 1/04 (2013.01); H04N 3/08 (2013.01); H03K 2005/00286 (2013.01);
Abstract
An oscillation device includes an oscillator, an oscillation detector that detects an oscillation of the oscillator and outputs an oscillation detection signal, a phase shift controller that generates a phase shift signal to provide the drive signal as positive feedback to the oscillator, and an amplitude detector that detects an amplitude of the oscillation detection signal and outputs an oscillation amplitude signal. The oscillator is controlled based on the oscillation amplitude signal and the phase shift signal.