Patent ID: 6829749
Filing Date: 2004-12-07
Classification: G06F,H01P,H05K

Abstract:
A design support apparatus for a circuit diagram which illustrates connections among components in a circuit including a directional coupler in which first and second signal lines are arranged partially in parallel with each other, the first signal line being coupled to a driver for outputting a signal and the second signal line being coupled to a receiver for receiving a crosstalk signal based on the signal from the driver, comprising:symbol storage means for storing various symbols, each being previously determined for corresponding one of various components including the directional coupler; symbol arrangement means for accepting a symbol to be arranged among various symbols stored in the symbol storage means and for accepting an arrangement position of the symbol to arrange the symbol at the arrangement position accepted; circuit diagram information storage means for storing the symbol arranged by the symbol arrangement means and the arrangement position of the symbol; attribute information acceptance means for accepting coupler attribute information including at least a parallel signal line length of the directional coupler and a signal line interval thereof; and attribute information storage means for storing the coupler attribute information accepted by the attribute information acceptance means in relation to a symbol of the directional coupler, which is arranged or to be arranged by the symbol arrangement means.