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:
Aug. 23, 2016
Filed:
Dec. 17, 2012
Applicant:
Smartphy Inc., Gyeonggi-do, KR;
Inventors:
Jaewoo Park, Seoul, KP;
Ook Kim, Seoul, KR;
Assignee:
ALPHACHIPS Corp., Seongnam-si, Gyeonggi-do, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K 19/003 (2006.01); H03K 19/0185 (2006.01); H03K 19/0175 (2006.01);
U.S. Cl.
CPC ...
H03K 19/00361 (2013.01); H03K 19/017509 (2013.01); H03K 19/018507 (2013.01);
Abstract
The present invention provides a circuit for generating a bias voltage for a high speed input/output pad. To this end, a bias voltage generator according to an embodiment of the present invention is to supply at least one bias voltage to a buffer circuit connected to the pad, which includes: a bias generation part for generating a first bias voltage; and a reference voltage generation part for generating a voltage proportional to the pad voltage applied to the pad as a reference voltage, wherein the first bias voltage may be the sum of the reference voltage and a predetermined voltage.