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:
May. 21, 2002
Filed:
Dec. 02, 1998
Applicant:
Inventor:
Toshiaki Oda, Tokyo, JP;
Assignee:
NEC Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04B 1/38 ;
U.S. Cl.
CPC ...
H04B 1/38 ;
Abstract
A radio telephone system for use in a vehicle is composed of an accessory mounted in the vehicle and a radio telephone that is separated from the accessory. The accessory transmits a mode switch signal indicating an operation state of the vehicle to the radio telephone by wireless means such as radio or infrared. When receiving the mode switch signal from the accessory, the radio telephone changes its operation mode depending on the mode switch signal. The operation state of the vehicle is an on/off state of an ignition key or a speed of the vehicle.