Electronic display apparatus
US6492963B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 21, 1999 |
| Grant date | Dec 10, 2002 |
| Priority date | — |
| Expiry date | Apr 21, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09F13/22
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A light display is mounted on the spokes of a rotating bicycle wheel. The display includes a plurality of arrays of lights, each array attached to one of the spokes. A sensor on the wheel, actuated by a magnet mounted on the frame, senses the angular velocity of the rotating wheel with respect to the bicycle frame. A microprocessor, mounted on the wheel and connected to the sensor, and individually connected to each of the plurality of arrays of lights by a cable, includes a memory which stores a plurality of display patterns. The microprocessor modulates the plurality of arrays of light according to a selected one of the plurality of display patterns and the sensed angular velocity of the rotating wheel to form an image using persistence of vision of a viewer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.