Patent ID: 8798694

Claim:
A communication device comprising: a first housing; a second housing; a first circuit board disposed in the first housing; a second circuit board disposed in the second housing; a circuit portion that is formed on the first circuit board, and includes a grounding portion, an power feed portion, and a signal processing unit electrically connected to the power feed portion; a first conductive portion that is disposed in the first housing and is electrically connected with the grounding portion; a second conductive portion that is disposed in the second housing; and a signal line that electrically connects the first circuit board with the second circuit board, wherein the signal line includes a signal transmission unit that transmits a predetermined signal and a shield portion that shields the signal transmission unit electrically, and wherein the shield portion is electrically connected with the power feed portion in the first housing and is electrically connected with the second conductive portion in the second housing, wherein the signal line includes a first shield portion and a second shield portion that sandwich the signal transmission unit wherein the first shield portion and the second shield portion are electrically connected with the power feed portion in the first housing, and are electrically connected with the second conductive portion in the second housing, and wherein the communication device further comprises a second selector unit that is configured so as to be able to select either one of a first state in which the first shield portion is electrically connected with the power feed portion in the first housing and is electrically connected with the second conductive portion in the second housing, and a second state in which the second shield portion is electrically connected with the power feed portion in the first housing and is electrically connected with the second conductive portion in the second housing.