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:
Feb. 12, 2013
Filed:
Nov. 20, 2008
Masaki Tanaka, Tokyo, JP;
Takashi Kikuzawa, Tokyo, JP;
Masaki Tanaka, Tokyo, JP;
Takashi Kikuzawa, Tokyo, JP;
Mitsubishi Electric Corporation, Tokyo, JP;
Abstract
A communication device, which provides a bandwidth allocation opportunity to ONUs each having different data transmission rates, not depending on any specific bandwidth-request notifying method, thereby realizing fair upstream transmission data delay between data transmission rates of respective ONUs, includes a bandwidth-update-cycle division processor that divides the bandwidth update cycle into slots of each of the data transmission rates, a bandwidth-allocation-amount calculating unit that allocates a bandwidth to the slave station devices in a slot of the data transmission rate, and a transmission-start-time calculating unit that sets a transmission start time and a transmission time of data of the slave station devices, based on an overhead length of a data frame transmitted by the slave station devices.