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. 05, 2001
Filed:
Dec. 16, 1996
Applicant:
Inventors:
Yuichiro Tsutsui, Kawasaki, JP;
Masashi Hamada, Tokyo, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04Q 7/22 ;
U.S. Cl.
CPC ...
H04Q 7/22 ;
Abstract
A communication system such as a cordless telephone system in which a first or second master and a slave are connected by using either one of a plurality of radio communication channels of different frequencies, wherein the first master connects the slave by using one of the plurality of frequencies and the second master uses one of the plurality of frequencies used for connection between the first master and the slave in case of connecting the slave.