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:
Apr. 05, 2016

Filed:

May. 20, 2015
Applicant:

Semiconductor Manufacturing International (Shanghai) Corporation, Shanghai, CN;

Inventor:

Zhigang Fu, Shanghai, CN;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03L 7/24 (2006.01); H03B 5/24 (2006.01); H03B 5/12 (2006.01);
U.S. Cl.
CPC ...
H03L 7/24 (2013.01); H03B 5/12 (2013.01); H03B 5/24 (2013.01);
Abstract

The present disclosure provides an oscillator circuit. The oscillator circuit includes a signal selecting unit, a control voltage generating unit, a reference voltage generating unit, an output adjusting unit, and a frequency-dividing unit. The signal selecting unit is configured to select a reference signal or a frequency-divided signal as an input signal. The control voltage generating unit is configured to generate a control voltage based on the input signal. The reference voltage generating unit is configured to generate a reference voltage. The output adjusting unit is configured to generate an output signal based on the control voltage and the reference voltage. The frequency-dividing unit is configured to divide the frequency of the output signal and generate the frequency-divided signal.


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