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:
Jan. 17, 2006
Filed:
Aug. 15, 2001
Koichi Hata, Katano, JP;
Akihiro Miyazaki, Sakai, JP;
Koji Imura, Machida, JP;
Daiji Ido, Yokohama, JP;
Koichi Hata, Katano, JP;
Akihiro Miyazaki, Sakai, JP;
Koji Imura, Machida, JP;
Daiji Ido, Yokohama, JP;
Matsushita Electric Industrial Co., Ltd., Osaka-fu, JP;
Abstract
A data transmittertransmits packets each with a sequence number and a priority added. A data receiverdetects any packet loss by referring to the sequence numbers added to the packets, and if detecting any packet of high priority as having been lost, requests for packet retransmission. Based on information about thus detected packet loss, the data receivergenerates and transmits an RR packetindicating the packet reception state. The data transmitterextracts from the RR packeta packet loss ratio, and therewith, changes manners of priority assignment. The manners are so changed that the packet of high priority is found with a lower ratio when the packet loss ratiois high, and when the packet loss ratiois low, found with a higher ratio.