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:
Mar. 07, 2017

Filed:

Oct. 26, 2015
Applicant:

Mediatek Inc., Hsin-Chu, TW;

Inventors:

Bo-Jyun Kuo, Hsinchu, TW;

An-Siou Li, New Taipei, TW;

Assignee:

MEDIATEK INC., Hsin-Chu, TW;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H03K 3/00 (2006.01); H03K 5/24 (2006.01);
U.S. Cl.
CPC ...
H03K 5/2481 (2013.01);
Abstract

An input buffer circuit comprising: a first current source; a first differential control circuit, configured to generate a first bias voltage at the first couple terminal according to the input signals, and configured to generate first control signals according to the input signals; a second current source; a second differential control circuit, configured to generate a second bias voltage at the second couple terminal according to the input signals, and configured to generate second control signals according to the input signals; a third current source, configured to provide a first current according to the second bias voltage; a first differential output circuit, configured to receive the first control signals to generate output signals; a fourth current source, configured to drain a second current according to the first bias voltage; and a second differential output circuit, configured to receive the second control signals to generate the output signal.


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