| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an optical communication multiplex device for an automobile and a communication method using it which can more simplify a physical network composition between vehicle loadings through a structure where an optical communication line length is selectively increased and only phase shifted signals are received, reduce the size of a multiplex device, and more efficiently compose an electronic facility system. <P>SOLUTION: The device is composed of an optical communication line connecting between loads of a transmitting end and a receiving end, a contact resistor which is adjacently installed to the optical communication line, and generates heat for changing an optical communication line length, a power source terminal and a ground terminal which supply power to the contact resistor, a control terminal which outputs a heating control signal to the contact resistor, and a transistor which is connected between the control terminal and the contact resistor, and carries out a switching action of the power source impressed to the contact resistor from the power terminal according to the heating control signal. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
