Patent ID: RE41492

Claim:
A traffic jam information output device, comprising: a receiver that receives synthesized pieces of traffic jam information; an output device that outputs the received pieces of traffic jam information; a display screen; and a transmitter that transmits a request signal for requesting a certain piece of the pieces of traffic information jam information, the pieces being pieces of traffic jam information on two or more merging roads indicating respective directions on the display screen, to a distribution device that distributes synthesized pieces of the traffic jam information to reduce an amount of synthesized pieces of traffic jam information displayed on the display screen, wherein: the output device includes the display screen that displays a map, the transmitter transmits a signal indicating a scale of a map displayed on the display screen, as well as the request signal to the distribution device, and the receiver receives the pieces of the traffic jam information , the pieces having that have been synthesized in accordance with the scale of the displayed map. map so that the pieces are replaced by a single piece of traffic jam information to display integrally the pieces of traffic jam information as a single traffic jam symbol indicating a substantially same direction as the respective directions .