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. 19, 2009
Filed:
Aug. 16, 2006
Applicant:
Seiji Hiraka, Miyagi, JP;
Inventor:
Seiji Hiraka, Miyagi, JP;
Assignee:
Tokyo Electron Device Limited, Yokohama, JP;
Primary Examiner:
Int. Cl.
CPC ...
H04B 10/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
When entering an idling state, a master unit M transmits an optical signal for polling addressed to each slave unit S-to S-n. The slave unit S-n located at the lowest rank of a direct chain constituted by S-to S-n, when receiving the optical signal for polling for the self unit, responds by transmitting an optical signal representing a phase correction request signal to the other slave units. The slave units S-to S-(n−1) respond to the phase correction request signal, and initialize each clock signal to synchronize with the clock signal of the slave unit S-n at the lowest rank.