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. 07, 2014
Filed:
Oct. 04, 2010
Applicant:
Min-soo Cho, Yongin-si, KR;
Inventor:
Min-soo Cho, Yongin-si, KR;
Assignee:
Samsung Electronics Co., Ltd., Gyeonggi-do, KR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11C 7/00 (2006.01); H03L 5/00 (2006.01); G06F 3/038 (2013.01); G09G 5/00 (2006.01); H03K 3/356 (2006.01); G06F 1/26 (2006.01);
U.S. Cl.
CPC ...
G06F 1/26 (2013.01); H03K 3/356113 (2013.01);
Abstract
A negative level shifter includes a voltage selection unit and at least one voltage level conversion unit. The voltage selection unit may apply a first voltage to a first node and a second voltage to a second node if the control signal CON is the first value and apply a third voltage to the first node and a fourth voltage to the second node if the control signal CON is the second value. The at least one voltage level conversion unit may be connected to the first node and the second node and convert a voltage level of an input signal by using a voltage of the first node and a voltage of the second node.