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. 25, 2016

Filed:

Sep. 14, 2012
Applicant:

Kazunori Ozawa, Tokyo, JP;

Inventor:

Kazunori Ozawa, Tokyo, JP;

Assignee:

NEC CORPORATION, Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 15/16 (2006.01); H04L 29/06 (2006.01); H04N 21/234 (2011.01); H04L 29/08 (2006.01); H04W 4/06 (2009.01); H04N 21/2225 (2011.01); H04N 21/231 (2011.01); H04N 21/24 (2011.01); H04N 21/61 (2011.01); H04N 21/647 (2011.01);
U.S. Cl.
CPC ...
H04L 65/4076 (2013.01); H04L 29/06 (2013.01); H04L 29/08072 (2013.01); H04N 21/2225 (2013.01); H04N 21/23106 (2013.01); H04N 21/23406 (2013.01); H04N 21/2401 (2013.01); H04N 21/6131 (2013.01); H04N 21/64738 (2013.01); H04N 21/64769 (2013.01); H04W 4/06 (2013.01);
Abstract

A cache server comprises a storage unit that stores managed content held by a storage apparatus in a mobile network, determines, from among a plurality of cache servers provided in the mobile network, a cache server that stores content(s) requested by a mobile terminal, using information included in a content request message from the mobile terminal, estimates a bandwidth of the mobile network based on a signal from the mobile terminal, reads a file with a bit rate not exceeding the bandwidth among a plurality of files having the requested content(s) with different bit rates, from the determined cache server, and transmits the read file to the mobile terminal while controlling timing of transmission in accordance with a buffer capacity of the mobile terminal.


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