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.:

US 9678881 B1

PDF
Full Text
Expired
Date of Patent:
Jun. 13, 2017

Filed:

Nov. 20, 2014
Applicant:

Fujitsu Limited, Kawasaki-shi, Kanagawa, JP;

Inventor:

Satoshi Imai, Kawasaki, JP;

Assignee:

FUJITSU LIMITED, Kawasaki-Shi, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 12/08 (2016.01); G06F 12/12 (2016.01); H04L 29/08 (2006.01); G06F 12/0875 (2016.01); G06F 12/122 (2016.01);
U.S. Cl.
CPC ...
G06F 12/0875 (2013.01); H04L 67/2842 (2013.01); G06F 12/122 (2013.01); G06F 2212/464 (2013.01); Y02B 60/1225 (2013.01);
Abstract

A data distribution device includes: a memory configured to store cache data of data to be distributed; and a processor coupled to the memory and configured to: read the cache data from the memory in accordance with a request message received from other devices to distribute the cache data to the other devices, update, when the request message is received, a counter value that gets closer to a given value with time, so as to make the counter value move away from the given value in accordance with a reference value that is a reciprocal of a threshold value of a reception rate of the request message, whether or not to store the cache data being determined based on the reception rate; and discard the cache data in the memory when the counter value becomes the given value.


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