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:
Jan. 23, 2001
Filed:
Sep. 16, 1997
Applicant:
Inventor:
Tamiyuki Mizoguchi, Tokyo, JP;
Assignee:
NEC Corporation, Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04B 1/00 ;
U.S. Cl.
CPC ...
H04B 1/00 ;
Abstract
In a radio device, a switch,is disposed between a power amplifier,and an antenna,, and during production of the radio device, the switch,is connected to a power meter,. A battery voltage or a detection voltage corresponding to a predetermined transmission power is measured, and then stored as a comparison voltage in a memory,. In use, the battery voltage or the detection voltage is compared with the comparison voltage, and upon detection of a low voltage, this fact is announced from a speaker,to a user.