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. 21, 2006
Filed:
Dec. 07, 2001
Applicants:
Yuji Aburakawa, Yokohama, JP;
Toru Otsu, Yokohama, JP;
Inventors:
Yuji Aburakawa, Yokohama, JP;
Toru Otsu, Yokohama, JP;
Assignee:
NTT DoCoMo, Inc., Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04B 1/38 (2006.01); H04B 10/12 (2006.01);
U.S. Cl.
CPC ...
Abstract
When a signal is sent from a wireless base station-a wireless modem-converts the signal to a signal of a unified transmission form. The switch-switches the signal to one of wireless transceivers--and the optical transceiver-The wireless transceiver-or-sends the signal to a control stationor a wireless base stationvia a wireless circuitThe optical transceiver-converts the signal into an optical signal and sends the optical signal to a wireless base station-via an optical fiber circuit