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:
Oct. 28, 2008
Filed:
Jun. 10, 2005
Sheng-fuh Chang, Hsinchu, TW;
Wen-lin Chen, Hsinchu, TW;
Cheng-hua Tsai, Hsinchu, TW;
Chin-hung Chien, Hsinchu, TW;
Hung-cheng Chen, Hsinchu, TW;
Shu-fen Tang, Hsinchu, TW;
Albert Chen, Hsinchu, TW;
Sheng-Fuh Chang, Hsinchu, TW;
Wen-Lin Chen, Hsinchu, TW;
Cheng-Hua Tsai, Hsinchu, TW;
Chin-Hung Chien, Hsinchu, TW;
Hung-Cheng Chen, Hsinchu, TW;
Shu-Fen Tang, Hsinchu, TW;
Albert Chen, Hsinchu, TW;
Integrated System Solution Corp., Hsinchu, TW;
Other;
Abstract
The present invention discloses a dual-band RF transceiver. The transceiver comprises a first module, used as the RF front-end of the dual-band transceiver and used for receiving and transmitting a first RF signal and a second RF signal; a second module, electrically connected to the first module, used as the IF IQ modulator/demodulator of the dual-band RF transceiver; a third module, electrically connected to the first and the second modules, used as the tripe-band phase-locked frequency synthesizer of the dual-band RF transceiver and used for providing a first local oscillating signal and a second local oscillating signal to the first module, and a third local oscillating signal to the second module. The dual-band RF transceiver according to the present invention realizes the dual-band triple-mode operation of IEEE802.11 a/b/g by a single dual-band RF module, and therefore the circuit size, power dissipation, component count, and cost can be dramatically reduced.