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:
Jun. 19, 2012

Filed:

Mar. 09, 2010
Applicants:

Atsushi Uchida, Kawasaki, JP;

Hirotoshi Inoue, Kawasaki, JP;

Inventors:

Atsushi Uchida, Kawasaki, JP;

Hirotoshi Inoue, Kawasaki, JP;

Assignee:

Fujitsu Limited, Kawasaki, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K 19/0175 (2006.01); H03K 19/08 (2006.01);
U.S. Cl.
CPC ...
Abstract

A circuit system has a first and a second circuit sub-system, and a bidirectional bus, the first circuit sub-system having a first control circuit that receives a control signal for controlling the direction of the bidirectional bus, and controls the first sub-system to be either of a transmitting or a receiving state based on a state of the control signal, a first sending unit that receives the control signal, and outputs as a first control signal, and a second sending unit that receives the control signal, and outputs as a second control signal, the second circuit sub-system having a first receiving unit that receives the first control signal, a second receiving unit that receives the second control signal, and a second control circuit that controls the second sub-system to assume either the transmitting or the receiving state on the basis of the first and the second control signal.


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