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. 27, 2001
Filed:
Mar. 19, 1998
Applicant:
Inventor:
Keiichi Nakajima, Tokyo, JP;
Assignee:
Oki Electric Industry Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04Q 7/20 ;
U.S. Cl.
CPC ...
H04Q 7/20 ;
Abstract
The base station,incorporates the line supervisor,, the line switch,, and the signal returner,. If there is originated a call request signal for the mobile station,by the mobile station,after occurrence of a break in the line between the base station,and the control station,, the line supervisor,notifies the line switch,of the line switch signal. In response to the line switch signal, the line switch,actuates the signal returner,. Thereafter, the signal returner,returns the call request signal over the base station zone of the base station,. This enables communication among the mobile stations,and,laid in the base station zone of the base station,.