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.

Date of Patent:
Mar. 11, 2014

Filed:

Jan. 05, 2012
Applicants:

Makio Abe, Tokyo, JP;

Fumihiro Inoue, Tokyo, JP;

Junichi Kimura, Tokyo, JP;

Inventors:

Makio Abe, Tokyo, JP;

Fumihiro Inoue, Tokyo, JP;

Junichi Kimura, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K 3/0231 (2006.01); H03K 21/08 (2006.01);
U.S. Cl.
CPC ...
Abstract

An oscillator circuit includes a clock oscillator which outputs a main clock signal having an oscillating frequency switched between a high frequency and a low frequency in response to a frequency selection signal, and a frequency divider circuit which outputs a sub-clock signal having a divided frequency equivalent to a frequency division ratio of the oscillating frequency of the main clock signal, the frequency division ratio being switched in response to the frequency selection signal. The divided frequency of the sub-clock signal is predetermined for each of the high frequency and the low frequency to which the oscillating frequency is switched in response to the frequency selection signal.


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