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. 16, 2004

Filed:

Mar. 31, 2003
Applicant:
Inventors:

Young-chan Cho, Chungcheongbuk-Do, KR;

Youn-cheul Kim, Seoul, KR;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 1/900 ; G11C 7/00 ; H03F 3/45 ;
U.S. Cl.
CPC ...
G01R 1/900 ; G11C 7/00 ; H03F 3/45 ;
Abstract

An input receiver controls an offset voltage by using an output feedback signal to improve a sense speed. The input receiver includes a pre-amplifier that controls an offset voltage in response to a feedback signal and amplifies an input signal with reference to a reference voltage. A sense amplifier amplifies an output signal and an inverted output signal of the pre-amplifier in response to a clock signal. A latch circuit latches an output signal and an inverted output signal of the sense amplifier. An inversion circuit uses the reference voltage as a power supply voltage and inverts an inverted output signal of the latch circuit. In addition, an output signal of the inversion circuit is supplied as the feedback signal. Alternatively, the output signal of the latch circuit may be directly supplied to the pre-amplifier as the feedback signal while not using the inversion circuit.


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