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:
Feb. 10, 2015

Filed:

Nov. 12, 2012
Applicant:

Olympus Corporation, Tokyo, JP;

Inventors:

Keisuke Nakazono, Tokyo, JP;

Masami Shimamura, Hanno, JP;

Yoshinobu Tanaka, Tokyo, JP;

Akira Ueno, Tokyo, JP;

Assignee:

Olympus Corporation, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 13/16 (2006.01); G06F 13/00 (2006.01);
U.S. Cl.
CPC ...
G06F 13/1605 (2013.01); G06F 13/00 (2013.01);
Abstract

A signal transfer circuit comprising a control signal transfer unit configured to output an access request output signal and a memory address output signal to the arbiter after timings of the access request input signal of the access request and the memory address input signal input from the bus master have been adjusted, and output an access permission output signal, and a data signal transfer unit configured to output each data output signal to the corresponding bus master or the arbiter after a timing of each data input signal of the access request input from the arbiter or the bus master is adjusted, and output a data validity period output signal to the bus master after a timing of a data validity period input signal indicating a period in which each data is valid in the access request input from the arbiter is adjusted.


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