Patent ID: 8497727
Filing Date: 2013-07-30
Classification: H03K

Abstract:
1. A double pole double throw switch device, having a first port, a second port, a third port and a fourth port, comprising: a first path circuit and a second path circuit, respectively having two terminals, wherein the first terminals of the first path circuit and the second path circuit are coupled to the first port, the second terminal of the first path circuit is coupled to the second port and the second terminal of the second path circuit is coupled to the third port; and a third path circuit and a fourth path circuit, respectively having two terminals, wherein the first terminals of the third path circuit and the fourth circuit are coupled to the fourth port, the second terminal of the third path circuit is coupled to the second port and the second terminal of the fourth path circuit is coupled to the third port, wherein each path circuit comprises a switch module and a functional switch circuit, and wherein when the switch module is turned on, the functional switch circuit corresponding to the switch module is turned off; and when the switch module is turned off, the functional switch circuit corresponding to the switch module is turned on.