Traffic information output device/method and traffic information distribution device/method

A traffic information output device comprising:

• a receiver that receives pieces of traffic information;
• a controller that synthesizes the received pieces of the traffic information;
• and
• an output device that outputs the synthesized pieces of the traffic information.

A method of outputting pieces of the traffic information, comprising:

• receiving the traffic information;
• synthesizing the received pieces of the traffic information;
• and
• outputting the synthesized pieces of the traffic information.

A traffic information output device having a display screen on which a map is displayed, comprising:

• a transmitter that transmits a signal for requesting transmission of a certain piece of traffic information and a signal indicating a state of the map displayed on the display screen to a distribution device that synthesizes pieces of the traffic information in accordance with a state of the map on the display screen of the output device, and distributes the synthesized pieces of the traffic information;
• a receiver that receives the pieces of the traffic information that have been distributed from the distribution device;
• and
• an output device that outputs the received pieces of the traffic information to the display screen.

A traffic information output device having a display screen on which a map is displayed, comprising:

• a transmitter that transmits a signal for requesting transmission of a certain piece of traffic information a signal indicating a range of the map displayed on the display screen to a distribution device that synthesizes pieces of the traffic information in accordance with a range of the map displayed on the display screen of the output device, and distributes the synthesized pieces of the traffic information;
• a receiver that receives the pieces of the traffic information that have been distributed from the distribution device;
• and
• an output device that outputs the received pieces of the traffic information to the screen.

A traffic information output device that is connected to a traffic information distribution device for distributing pieces of traffic information and that receives and outputs pieces of the traffic information, comprising:

• a transmitter that transmits a request signal for synthesizing first pieces of the traffic information contained in one information group to the traffic information distribution device;
• a receiver that receives second pieces of the traffic information that have been synthesized from the first pieces of the traffic information based on the synthesized signal;
• and
• an output device that outputs the received pieces of the traffic information.