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:
Mar. 03, 2015
Filed:
Jan. 16, 2013
Applicant:
Panasonic Corporation, Osaka, JP;
Inventors:
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 11/00 (2006.01); G11C 11/34 (2006.01); G11C 16/04 (2006.01); G06F 7/02 (2006.01); G06F 11/26 (2006.01); G06F 13/16 (2006.01); G06F 11/24 (2006.01);
U.S. Cl.
CPC ...
G06F 11/26 (2013.01); G06F 13/1673 (2013.01); G06F 11/24 (2013.01);
Abstract
A controller section outputs a first signal and a second signal holding a phase relationship with the first signal. The second signal is received by a memory I/F section via a FIFO memory of an error detecting section. The memory I/F section performs timing adjustment for the first and second signals, outputs the first and second signals after the timing adjustment to a memory, and loops back the second signal. A data comparator compares the looped-back second signal with the original second signal outputted from the FIFO memory and corresponding to the looped-back signal.