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:
Jun. 11, 2019
Filed:
Nov. 15, 2013
Hitachi, Ltd., Chiyoda-ku, Tokyo, JP;
Takashi Takeuchi, Tokyo, JP;
Ryosuke Fujiwara, Tokyo, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
Provided is a method for effectively suppressing packet losses by burst losses without an increase in delay by adaptively or fixedly changing a size of an FEC encoded block even when the number of packets per unit time is small. Each communication deviceincludes a transmitting unitand a receiving unit. The transmitting unithas a function of calculating forward error correction (FEC) codes based on the number of packets per encoding time and a value of a burst loss time of a network line. The receiving unitdecodes an FEC encoded packet and measures line quality information of the network for transmission to the transmitting unit. The transmitting unittransmits the packets at equal intervals for as long as it is required for encoding, and can change a system for calculating FEC based on the burst loss time and the encoding time.