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:
Jul. 20, 2010

Filed:

Feb. 02, 2009
Applicants:

Jian-yu Ding, Hsinchu County, TW;

Shen-ching Sun, Hsinchu County, TW;

Yao-chi Wang, Hsinchu County, TW;

Chao-tung Yang, Tai-Nan, TW;

Fucheng Wang, Hsinchu County, TW;

Shuo-yuan Hsiao, Hsinchu, TW;

Inventors:

Jian-Yu Ding, Hsinchu County, TW;

Shen-Ching Sun, Hsinchu County, TW;

Yao-Chi Wang, Hsinchu County, TW;

Chao-Tung Yang, Tai-Nan, TW;

Fucheng Wang, Hsinchu County, TW;

Shuo-Yuan Hsiao, Hsinchu, TW;

Assignee:

MStar Semiconductor, Inc., ChuPei, Hsin-Chu Hsien, TW;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K 21/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A multi-modulus divider and a method for performing frequency dividing by utilizing a multi-modulus divider are disclosed. The multi-modulus divider comprises a multi-modulus dividing circuit, a pulse generating circuit, and a modulus signal generating circuit. The multi-modulus dividing circuit comprises several serially connected divider cells, of which a predetermined one may be bypassed. The multi-modulus dividing circuit generates an output frequency according to an input frequency and a divisor. A range of the divisor comprises a plurality of numerical intervals. The pulse generating circuit generates a pulse signal. The modulus signal generating circuit generates a determination result by determining which numerical interval the divisor belongs to, and inputs, according to the determination result, the pulse signal into the predetermined divider cell to be one of references which the predetermined divider cell refers to when outputting a modulus signal. The predetermined divider cell corresponds to the determination result.


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