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:
Dec. 27, 2016

Filed:

Nov. 13, 2015
Applicant:

Taiwan Semiconductor Manufacturing Co., Ltd., Hsinchu, TW;

Inventor:

Chao-Chieh Li, Hsinchu, TW;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03B 5/12 (2006.01); H03L 7/24 (2006.01); H03L 7/099 (2006.01); H03L 7/10 (2006.01); H03B 1/00 (2006.01);
U.S. Cl.
CPC ...
H03L 7/24 (2013.01); H03B 1/00 (2013.01); H03B 5/1212 (2013.01); H03B 5/1228 (2013.01); H03L 7/099 (2013.01); H03L 7/10 (2013.01);
Abstract

A device is disclosed that includes an oscillator, a frequency detector, and a selection circuit. The oscillator is configured to generate an oscillating signal. The oscillator includes a first tuning bank and a second tuning bank. The first tuning bank is configured to adjust the frequency of the oscillating signal within a first frequency band. The second tuning bank is configured to adjust the frequency of the oscillating signal within a second frequency band. The frequency detector is configured to generate a control signal according to at least one signal indicating the frequency of the oscillating signal. The selection circuit is configured to activate at least one of the first tuning bank and the second tuning bank according to the control signal.


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