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:
Sep. 09, 2014
Filed:
Jan. 25, 2012
Moon-sang Hwang, Yongin, KR;
Won-jun Choe, Yongin, KR;
Hyun-chang Kim, Seoul, KR;
Deog-kyoon Jeong, Seoul, KR;
Moon-Sang Hwang, Yongin, KR;
Won-Jun Choe, Yongin, KR;
Hyun-Chang Kim, Seoul, KR;
Deog-Kyoon Jeong, Seoul, KR;
Samsung Display Co., Ltd., Yongin, Gyeonggi-Do, KR;
Abstract
A level-down shifter includes: a first load device between a first voltage and a first node; a second load device between the first voltage and a second node; a first input device between the first node and a third node, receiving a reference voltage signal, and adjusting a first node voltage of the first node based on the reference voltage signal; a second input device between the second node and the third node, receiving an input signal, and adjusting a second node voltage of the second node based on the input signal; and a current source between a second voltage and the third node, receiving the second node voltage of the second node, and adjusting a third node voltage of the third node and a bias current based on the second node voltage of the second node, wherein a level of the input signal is higher than the first voltage.