METHOD AND DEVICE FOR BRANCHING INCOMING SIGNAL

摘要

PROBLEM TO BE SOLVED: To provide branching method and device for allowing incoming calls from plural command consoles to simultaneously arrive at respective terminals. SOLUTION: A false signal generator 201 simultaneously sends a false signal to plural command consoles and a timing comparator 202 compares the sending timing of the false signal with the receiving timing of response signals received from respective command consoles. A computing element 203 calculates the transmission delay values of respective consoles based upon the time difference of these timing and stores the calculated delay values in a delay memory. A delay correction circuit 205 delays incoming signals in each terminal in accordance with the transmission delay values so that the incoming signals simultaneously arrive at plural terminals and sends the calls to respective terminals.