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. 17, 2009
Filed:
Jun. 07, 2005
Sheng-fuh Chang, Hsinchu, TW;
Wen-lin Chen, Hsinchu, TW;
Yi-yu LU, 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;
Yi-Yu Lu, Hsinchu, TW;
Hung-Cheng Chen, Hsinchu, TW;
Shu-Fen Tang, Hsinchu, TW;
Albert Chen, Hsinchu, TW;
Integrated Systems Solution Corp., Hsinchu, TW;
Other;
Abstract
The present invention discloses an antenna diversity switch, used for receiving and transmitting RF signals for dual-mode co-existence wireless communication system. The antenna diversity switch comprises a first transmitting port; a second transmitting port; a receiving port; a first control unit, electrically connected between the first transmitting port and a first antenna; a second control unit, electrically connected between the first transmitting port and a second antenna; a third control unit, electrically connected between the second transmitting port and the first antenna; a forth control unit, electrically connected between the second transmitting port and the second antenna; a fifth control unit, electrically connected between the receiving port and the first antenna; a sixth control unit, electrically connected between the receiving port and the second antenna. The antenna diversity switch according to the present invention meets the requirement of IEEE 802.11b/g WLAN and Bluetooth co-existence operation with reduction of three or four antennas in the prior art to two antennas. Moreover, it provides antenna diversity for both WLAN and Bluetooth systems, where in the prior-art WLAN and Bluetooth co-existence system only WLAN system has the antenna diversity.