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:
Mar. 25, 2008
Filed:
Jan. 22, 2002
Takashi Murakami, Saitama, JP;
Takashi Murakami, Saitama, JP;
NEC Corporation, Tokyo, JP;
Abstract
A first housingis provided with a first and a second terminalsto be connected with a first and a second external antennas. A second housingis connected via a coaxial cablewith the first housing. The first housingincludes a switchconnected via a capacitorwith the coaxial cable, for selectively connecting one of the first and second terminalswhich provides higher receipt sensitivity on the basis of a switching signal and a DC power supplyconnected via an inductanceto the coaxial cable. The second housingincludes a radio circuitconnected via the capacitancewith the coaxial cable, for processing a radio signal to be transmitted, supplying the processed radio signals to the first or second internal antennaorand processing the received radio signal. A control circuitis connected via the inductanceto the coaxial cablefor outputting the switching signal on the basis of the received signal level by the external antenna and an inductance connected between the coaxial cable and a circuit required to be supplied with the DC power supply. Thus the radio signal is transmitted/received and the DC power is supplied via the coaxial cable