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.

Patent No.:

US 7528819 B1

PDF
Full Text
Expired
Date of Patent:
May. 05, 2009

Filed:

Sep. 26, 2005
Applicants:

Che-li Lin, Taipei, TW;

Chang-san Chen, Hsinchu, TW;

Inventors:

Che-Li Lin, Taipei, TW;

Chang-San Chen, Hsinchu, TW;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G09G 3/36 (2006.01);
U.S. Cl.
CPC ...
Abstract

A data switching circuit is provided, which reduces power consumption of the source drivers when used together with a dot inversion driving method. The circuit comprises a control unit and a switching unit. Wherein, the control unit provides a switching signal. The switching unit has 2N input terminals and 2N output terminals and receives the switching signal. Assume that N is a positive integer and 1≦i≦N. When the switching signal is in a first state, the switching unit connects the (2i−1)input terminal and the (2i−1)output terminal, and connects the 2iinput terminal and the 2ioutput terminal. When the switching signal is in a second state, the switching unit connects the 2iinput terminal and the (2i−1)output terminal, and connects the (2i−1)input terminal and the 2ioutput terminal.


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