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:
Jul. 03, 2001
Filed:
Apr. 19, 1996
Applicant:
Inventor:
Kazunari Watanabe, Yokohama, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04Q 7/20 ;
U.S. Cl.
CPC ...
H04Q 7/20 ;
Abstract
A telephone has a speech detection circuit connected to a microphone so that an external line lamp is turned off when a transmitting signal is detected by the speech detection circuit or when a dial key is pressed. When a hold key is pressed, power for a transmission section is turned off while power for a receiving section is turned on. The power for the transmission section is turned on in response to key input or receiving of a control signal.