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:
Mar. 06, 2012
Filed:
Jan. 16, 2008
Morihiko Hayashi, Kanagawa, JP;
Morihiko Hayashi, Kanagawa, JP;
Sony Corporation, Tokyo, JP;
Abstract
A network interface unit of a server determines whether the transmission method of transmitting a packet is multicast transmission or unicast transmission; adds to the packet a second FEC when the transmission method of the packets is determined to be multicast transmission and adds to the packet an error detection code for ARQ when the transmission method of the packets is determined to be unicast transmission; and transmits the packet to clients. Each client determines whether the transmission method of the received packet is multicast transmission or unicast transmission; corrects the error on the basis of the second FEC when the transmission method is determined to be multicast transmission; and detects the error on the basis of the error detection code and generates a retransmission request signal when the transmission method is determined to be unicast transmission.