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.
Patent No.:
Date of Patent:
Jun. 03, 2014
Filed:
Nov. 09, 2011
Applicant:
Hiroyasu Yoshida, Tokyo, JP;
Inventor:
Hiroyasu Yoshida, Tokyo, JP;
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01R 31/28 (2006.01);
U.S. Cl.
CPC ...
Abstract
When an update disable signal is at an inactivation level, a latch signal is activated in accordance with an active signal and a mode register set signal. When the update disable signal is at an activation level, the latch signal is activated in accordance with the active signal while being not activated in accordance with the mode register set signal. Based on the latch signal, the address signal is latched. Based on the latched address signal, an internal test signal is generated. With this structure, a target chip can be selectively controlled simply by activating the update disable signal in the target chip.