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:
Oct. 05, 2004

Filed:

May. 21, 2003
Applicant:
Inventor:

Yasuhiro Sota, Tokyo, JP;

Assignee:

NEC Corporation, Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 1/300 ;
U.S. Cl.
CPC ...
G06F 1/300 ;
Abstract

A requester includes an output data register which retains a data piece to be output to a relay register of a crossbar, and two request registers which output a request corresponding to the data piece. The requester sets a next data piece in the output data register, and sets a corresponding request in the request register in response to a selection signal from the crossbar. The crossbar outputs a grant signal representing that output of a data piece output from the requester to an output port is permitted to the requester, and at the same time, switches selection between requests from the two request registers in accordance with a request selection register prepared in advance, and inputs the selected request to an arbiter.


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