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:
Apr. 06, 1993
Filed:
Jul. 10, 1990
Applicant:
Inventor:
Kazuhiro Kawashima, Tokyo, JP;
Assignee:
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04B / ; H03G / ;
U.S. Cl.
CPC ...
455 89 ; 4552342 ; 381109 ;
Abstract
A radio telecommunication apparatus comprises a volume key for controlling volume, detecting means for generating a first detection signal in response to continuous push of the volume key, and generating a second detection signal in response to intermittent push of the volume key, and voice volume control means for performing control to increase the volume in response to one of the first and second detection signals, and performing control to decrease the volume in response to the other of the first and second detection signals.