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:
Jul. 05, 2005

Filed:

May. 19, 2003
Applicants:

Young-seung Kim, Seoul, KR;

Young-dae Lee, Seoul, KR;

Inventors:

Young-Seung Kim, Seoul, KR;

Young-Dae Lee, Seoul, KR;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03L007/00 ;
U.S. Cl.
CPC ...
Abstract

There is provided a power-on reset circuit and method for a semiconductor integrated circuit device using a plurality of power sources, in which a power-on reset operation is stable and reliable, where the power-on reset circuit includes voltage detection circuits for generating at least two voltage detection signals with respect to the power sources, the power-on reset circuit generates a plurality of power-on reset signals using combination logic circuits for performing logic operations of the voltage detection signals, and internal latches and flip-flops are stably reset in response to the plurality of power-on reset signals.


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