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.

Date of Patent:
Oct. 21, 1986

Filed:

Sep. 29, 1983
Applicant:
Inventor:

Katsuaki Kawamura, Kawagoe, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04B / ; H04Q / ; H04M / ;
U.S. Cl.
CPC ...
455 77 ; 455 34 ; 179 / ;
Abstract

A radio communications system having a call channel and a plurality of speech channel one of which is to be selected, is provided with means for returning to a last used speech channel in the event that a call is required within a predetermined time period after returning to the call channel which may take place during a call on a selected speech channel or when the call is completed. The system is further provided with means for automatically reset the system at the call channel predetermined time period after the completion of a call on a selected speech channel. With these means, the operation for going back to the last used speech channel is made easy. Further, the system is prevented from occupying the selected speech channel even if the reset switch is not operated after the call is completed.


Find Patent Forward Citations

Kawamura, Katsuaki. (1986). Radio communications control system which automatically returns the (U.S. Patent No. 4618998). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4618998

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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