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:
Aug. 23, 2005

Filed:

Aug. 22, 2002
Applicants:

Glen D. Stone, Campbell, CA (US);

Bruce A. Fairman, Woodside, CA (US);

Scott D. Smyers, San Jose, CA (US);

Inventors:

Glen D. Stone, Campbell, CA (US);

Bruce A. Fairman, Woodside, CA (US);

Scott D. Smyers, San Jose, CA (US);

Assignees:

Sony Corporation, Tokyo, JP;

Sony Electronics Inc., Park Ridge, NJ (US);

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F013/362 ;
U.S. Cl.
CPC ...
Abstract

A system and method for effectively performing isochronous data transfers comprises a network device including an input/output (I/O) bus that is coupled to an input/output (I/O) node and an isochronous-capable network interface. The network interface and the I/O node may send requests to an arbiter for control of the I/O bus to perform a data transfer operation. In accordance with the present invention, an arbiter filter is interposed between the arbiter and both the network interface and the I/O node to filter respective requests for control of the I/O bus. The network interface advantageously provides an isochronous request to the arbiter filter to thereby de-assert conflicting requests so that the network interface may effectively perform a time-sensitive isochronous data transfer.


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