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.

Date of Patent:
Feb. 25, 2014

Filed:

Jan. 24, 2012
Applicants:

Yong Hwan Moon, Incheon-si, KR;

Jun Ho Kim, Goyang-si, KR;

Jae Ryun Shim, Daejeon-si, KR;

Chul Soo Jeong, Daejeon-si, KR;

Sang Ho Kim, Gunpo-si, KR;

Inventors:

Yong Hwan Moon, Incheon-si, KR;

Jun Ho Kim, Goyang-si, KR;

Jae Ryun Shim, Daejeon-si, KR;

Chul Soo Jeong, Daejeon-si, KR;

Sang Ho Kim, Gunpo-si, KR;

Assignee:

Silicon Works Co., Ltd., Daejeon-Si, KR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03B 1/00 (2006.01); H03K 3/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

Provided is a pre-emphasis circuit which transmits a pre-emphasis output current to an output node of an output driver in response to first to fourth pre-emphasis control signals generated by a logical operation on differential input signals. The pre-emphasis circuit includes: a first pre-emphasis circuit driven in a range between a first voltage and a second voltage and configured to generate a first pre-emphasis output current in response to the first and second pre-emphasis control signals and output the generated first pre-emphasis output current to a first output node of the output driver; and a second pre-emphasis circuit driven in the range between the first voltage and the second voltage and configured to generate a second pre-emphasis output current in response to the third and fourth pre-emphasis control signals and output the generated second pre-emphasis output current to a second output node of the output driver.


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