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:
Nov. 28, 2006

Filed:

Nov. 01, 2004
Applicant:

Yong-ki Kim, Kyoungki-do, KR;

Inventor:

Yong-Ki Kim, Kyoungki-do, KR;

Assignee:

Hynix Semiconductor Inc., Kyoungki-do, KR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K 19/0175 (2006.01);
U.S. Cl.
CPC ...
Abstract

In a semiconductor device, an input buffer for buffering an input signal to provide an internal signal includes a reference voltage adjusting unit configured to receive a reference voltage and to output a first reference signal having a potential level higher than that of the reference voltage and a second reference signal having a potential level lower than that of the reference voltage, a multiplexing unit configured to selectively output one of the first and second reference signals as a newly selected reference signal in response to the internal signal, a differential amplification unit configured to amplify the input signal by comparing the input signal with the newly selected reference signal outputted to generate an amplified input signal, and an internal buffer configured to output the internal signal by buffering the amplified input signal.


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