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. 05, 2005
Filed:
Aug. 07, 2001
Hiroomi Kashu, Moriguchi, JP;
Shuji Otsuka, Higashiosaka, JP;
Hideji Kawasaki, Neyagawa, JP;
Takenori Ugari, Hirakata, JP;
Hiroomi Kashu, Moriguchi, JP;
Shuji Otsuka, Higashiosaka, JP;
Hideji Kawasaki, Neyagawa, JP;
Takenori Ugari, Hirakata, JP;
Sanyo Electric Co., Ltd., Moruguchi, JP;
Abstract
A portable telephone of the present invention comprises a casing, a LCDand a key input devicedisposed on a surface of the casing. The casing has a microphonefor delivering speech, a speakerfor receiving speech, a backlightfor lighting a screen of the LCD, a key light devicefor lighting a manipulation surface of the key input device, and a control circuitincorporated therein. The control circuitchecks whether a speech delivery signal input from the microphoneis a voice signal. If the speech delivery signal is a voice signal, display operation of the LCDis set to OFF and both the backlightand the key light deviceare turned off. If the signal is not a voice signal, display operation of the LCDis set to ON. Consequently, useless power consumption is reduced.