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.:
Date of Patent:
Jan. 10, 2012
Filed:
Mar. 02, 2009
Applicants:
Chih Wei Chang, Taipei, TW;
Yi-jan Chen, Taipei, TW;
Inventors:
Chih Wei Chang, Taipei, TW;
Yi-Jan Chen, Taipei, TW;
Assignees:
Mediatek Inc., Hsin-Chu, TW;
National Taiwan University, Taipei, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K 27/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A signal source device is provided and includes a plurality of latch units, an inverter unit, and a voltage-shifting unit, which may include a capacitance unit. The plurality of latch units are substantially cascaded. The inverter unit is coupled to the latch units. The voltage-shifting unit has a first terminal coupled to the inverter unit and one of the latch units and a second terminal receiving a first input signal, for shifting a voltage level at the first terminal according to the first input signal.