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:
Apr. 23, 2013
Filed:
Jan. 21, 2010
Chan-hee Jeon, Suwon-si, KR;
Han-gu Kim, Seongnam-si, KR;
Min-sun Hong, Seoul, KR;
Tae-hoon Ha, Suwon-si, KR;
Doo-hyung Kim, Suwon-si, KR;
Jung-soon Lee, Suwon-si, KR;
Chan-hee Jeon, Suwon-si, KR;
Han-gu Kim, Seongnam-si, KR;
Min-sun Hong, Seoul, KR;
Tae-hoon Ha, Suwon-si, KR;
Doo-hyung Kim, Suwon-si, KR;
Jung-soon Lee, Suwon-si, KR;
Samsung Electronics Co., Ltd., Gyeonggi-do, KR;
Abstract
The pad interface circuit includes a first stack MOS transistor having a first terminal connected to a pad and a bulk connected to a first supply voltage; a second stack MOS transistor having a first terminal connected to a second terminal of the first stack MOS transistor and a second terminal, a gate terminal, and a bulk that are connected to the first supply voltage; and a voltage level sensing circuit generating a feedback voltage by using a pad voltage applied from the pad. In addition, the feedback voltage is applied to a gate terminal of the first stack MOS transistor.