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:
Aug. 25, 1998
Filed:
Jan. 26, 1996
Applicant:
Inventors:
Akihiro Matsubara, Kasuga, JP;
Masahiro Shigyo, Chikushi-gun, JP;
Assignee:
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B / ;
U.S. Cl.
CPC ...
455 62 ; 4551611 ;
Abstract
A radio apparatus using a limited channel scan mode is provided. In the limited channel scan mode, a parent unit scans for transmitting within a limited channel group determined on the basis of the last channel used, and a child unit intermittently scans for receiving within the same limited channel group. Since not all channels are scanned, the working time of the child unit during one scan period is shortened and the battery power is saved. When interference occurs during communication, the channel being used is switched and the channel group thereafter is thus also changed.