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:
Oct. 20, 2009
Filed:
Mar. 13, 2008
Applicants:
Yung-chih Yen, Tainan, TW;
Hung-sung LI, Hsinchu, TW;
Inventors:
Yung-Chih Yen, Tainan, TW;
Hung-Sung Li, Hsinchu, TW;
Assignee:
Mediatek Inc., Hsin-Chu, TW;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03F 3/45 (2006.01);
U.S. Cl.
CPC ...
Abstract
A telescopic operational amplifier including a current source, an input stage, and a load stage is provided. The input stage is coupled to the current source and includes a group of input transistors for receiving an input voltage. The load stage is coupled to the input stage and includes a group of load transistors for outputting an output voltage. The threshold voltages of the group of input transistors are larger than that of the group of load transistors.
Yen, Yung-Chih. (2009). Telescopic operational amplifier and reference buffer utilizing the same (U.S. Patent No. 7605654). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7605654
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile