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:
Jun. 01, 2004
Filed:
Feb. 04, 2003
Yasushi Iwata, Yokohama, JP;
Yasufumi Ichikawa, Yokohama, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
A constant output signal can be achieved by controlling a gain variable amplifier based on a level of an output signal which is derived by variably amplifying a receiving signal S (input signal). An AGC output signal S is detected by a detector circuit . Then, a CPU generates a control signal S based on a detected voltage signal S . An RSSI detector portion detects an RSSI signal S corresponding to a transmitting signal level from the receiving signal S . The transmitting signal level is compared to a preceding transmitting signal level. The control signal from a preceding execution of the gain control is output if the present control signal is lower than the preceding control signal and the present transmitting signal level is reduced below the preceding transmitting signal level.