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:
May. 24, 2016
Filed:
Apr. 05, 2012
Kazuhisa Yamashita, Osaka, JP;
Kazuhisa Yamashita, Osaka, JP;
SUMITOMO ELECTRIC INDUSTRIES, LTD., Osaka-shi, Osaka, JP;
Abstract
A relay device includes a first transmitting and receiving unit connected to a PON line on the upper-level side and performing mutual conversion between optical and electrical signals; a second transmitting and receiving unit connected to a PON line on the lower-level side and performing mutual conversion between optical and electrical signals; a relay processing unit relaying a downstream frame received by the first unit to the second unit, and relays an upstream frame received by the second unit to the first unit; and a control unit. The control unit follows upstream multiple access control performed by a station side device, for transmission of the upstream frame to be transmitted by the first unit to the station side device, and independently performs upstream multiple access control for reception of the upstream frame received by the second unit from a home side device.