Apparatuses for displaying information on vehicles
US6812851B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 29, 2000 |
| Grant date | Nov 2, 2004 |
| Priority date | — |
| Expiry date | Dec 29, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09F21/042
- WIPO fieldControl
- WIPO sectorInstruments
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. A system for publicly displaying messages can also comprise an automotive vehicle having a publicly visible electronic display; a computer for showing various messages (which can include advertisements) on the display; an input device which can be used by an occupant of the vehicle to generate one or more emergency signals; and a connection supplying such emerge…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.