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:
Feb. 09, 2010

Filed:

Dec. 21, 2007
Applicants:

Hung-wei Tseng, Hsinchu, TW;

Ling-chang HU, Hsinchu, TW;

Shi-hsiang LU, Hsinchu, TW;

Wein-town Sun, Hsinchu, TW;

Inventors:

Hung-Wei Tseng, Hsinchu, TW;

Ling-Chang Hu, Hsinchu, TW;

Shi-Hsiang Lu, Hsinchu, TW;

Wein-Town Sun, Hsinchu, TW;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03M 1/56 (2006.01);
U.S. Cl.
CPC ...
Abstract

An analog-to-digital converter (ADC) for converting an optical signal into an electrical signal is disclosed. The ADC includes a detection module, a first P-type metal oxide semiconductor (PMOS) transistor, a first N-type metal oxide semiconductor (NMOS) transistor, a first switch unit, and an output module. The first PMOS transistor and the first NMOS transistor form an inverter. The first switch unit is disposed between the input terminal and the output terminal of the inverter and is turned on/off according to a first control signal. The output module is coupled to the output terminal of the inverter for counting the time that an input voltage is greater than a reference voltage and generating a digital signal.


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