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. 06, 2004
Filed:
Dec. 20, 1999
Yasufumi Ichikawa, Kanagawa, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
A radio communication apparatus is provided with a first variable power amplifier and a second variable power amplifier in a radio transmission unit , and also a variable amplifier is provided at a prestage of a modulation unit . A transmission power control bit is extracted from a reception signal sent from a communication counter station by a variable power amplifying-controlling unit . The variable power amplifying-controlling unit updates a value of transmission power stored in an own station based upon the value of this extracted transmission power control bit, and also compares the updated transmission value with a predetermined threshold value. Based upon this comparison result, the first and second variable power amplifier and , and the variable amplifier are controlled in either a serial control manner or a parallel control manner so as to perform a variable power amplification, so that the own transmission power is adjusted.