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.:
Date of Patent:
Apr. 11, 2017
Filed:
Jul. 04, 2012
Kazunori Ozawa, Tokyo, JP;
Kazunori Ozawa, Tokyo, JP;
Rakuten, Inc., Tokyo, JP;
Abstract
A cache server, connected to a packet forwarding apparatus that forwards a packet to be sent and received between a user terminal and a distribution server that distributes content over the Internet, temporarily stores at least some of the content in a content temporary storage unit of the cache server, calculates a bit rate when sending content based on a TCP response signal or an ECN (Explicit Congestion Notification) signal received from the terminal, and reads a file or stream of content requested in a content request message received from the terminal, whose bit rate is not greater than the bit rate, from the content temporary storage unit or the distribution server, stores the read file or stream in a packet of a prescribed protocol, and sends the packet.