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. 22, 2002
Filed:
Jun. 17, 1998
Junji Itoh, Hirakata, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
A transmitter-receiver circuit for radio communication, comprising a low-noise receiver amplifier ( ); a first matching circuit ( ) which converts the input impedance of the amplifier ( ); a transmitter amplifier ( ) including a second matching circuit ( ) and a third matching circuit ( ) which convert the impedances to transmitting signals; and a mode switch ( ) for changing from transmitting to receiving and vice versa. The transmitter amplifier ( ) has a control terminal ( ) connected to the gate electrode of a high-power FET ( ), and the output terminal ( A) of the terminal ( ) is connected to an antenna ( ) not through the switch ( ).
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile