Abstract: A system for publicly displaying messages includes elements carried by an automotive vehicle. In some embodiments the vehicle carries a publicly visible electronic display; a sensor for sensing the brightness of light in the vicinity of the display; and illumination varying circuitry for varying the brightness of light generated by the display in response to brightness detected by the sensor. In some embodiments the vehicles carries a publicly visible display formed by ganging together a plurality of displays, each having at least 640×480 pixels; and video drive circuitry for causing images to be shown on the ganged display with different portions of individual images being shown on each of the individual displays. In some embodiments the vehicle has an automotive electrical system and carries a publicly visible high-bright display, capable of providing over 1000 NITS illumination and having 640 by 480 or greater pixel resolution; and video drive circuitry causing images to be shown on the display.

Abstract: A system for publicly displaying messages can comprise an automotive vehicle having an automotive electrical system including an ignition system and a generator and a publicly visible electronic display; video drive circuitry for generating images (which can include advertisements) on the display; display-power circuitry for receiving power from the vehicle's automotive electrical system, supplying that power to the display, and automatically reducing the power supplied to the display after the vehicle's ignition is turned off. The display-power circuitry can automatically increase power to the display when the vehicle's ignition is turned back on. A computer can control the images on the display and the display-power circuitry can automatically reduce power to the display independently of whether the computer is operating.

Abstract: A system of advertising information on one or more mobile vehicles as a function of the vehicle's location. The system comprises mobile units and a central system for controlling the displays on the mobile units. The mobile units include displays visible from the outside of the vehicle, a controller, and a wireless communication system for repeatedly transmitting a locator signal to and receiving display-selection messages from the central system. The central system includes a wireless communication system for receiving locator signals from the mobile units, a memory and a processor. The central system determines a zone in which the mobile unit is located, selects a display to be shown by the mobile unit based on the zone that the mobile unit is located, and transmits a display-selection message to the mobile unit identifying a selected display message to be shown on the mobile unit's display.

Abstract: A system for publicly displaying messages includes elements carried by an automotive vehicle. In some embodiments the vehicle carries a publicly visible electronic display; a sensor for sensing the brightness of light in the vicinity of the display; and illumination varying circuitry for varying the brightness of light generated by the display in response to brightness detected by the sensor. In some embodiments the vehicles carries a publicly visible display formed by ganging together a plurality of displays, each having at least 640×480 pixels; and video drive circuitry for causing images to be shown on the ganged display with different portions of individual images being shown on each of the individual displays. In some embodiments the vehicle has an automotive electrical system and carries a publicly visible high-bright display, capable of providing over 1000 NITS illumination and having 640 by 480 or greater pixel resolution; and video drive circuitry causing images to be shown on the display.

Abstract: At least two publicly visible electronic displays are carried by a moving vehicle, each of which displays is positioned to be visible from a different external position relative to the vehicle. Separate messages can be displayed on the differently positioned displays. The selection of different messages for showing on different displays can be made as a function of differences between viewers who are likely to see the different displays. Such selections can be based on demographic information. The displays can include a side display that can better be seen from a position to the side of the vehicle, and a back display that can better seen from a position behind the vehicle. Messages considered more appropriate for pedestrians or more appropriate for rapid viewing can be shown on the side display, and those considered more appropriate for drivers behind the vehicle or for longer viewing can be shown on the back display.