Full-color shoe light device
US6764193B1 · kind B1 · utility
Inventor
Key dates
| Filing date | Feb 4, 2003 |
| Grant date | Jul 20, 2004 |
| Priority date | — |
| Expiry date | Feb 4, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S362/802
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A full-color shoe light device has at least a color-mixing LED, a power source, a vibration switch and a control IC. The color-mixing LED is several light-emitting chips of different colors, and is used to generate light of various colors. The power source provides electricity for the color-mixing LED. The vibration switch generates and sends a trigger signal to the control IC when vibrated. The control IC generates a drive signal to drive the color-mixing LED to emit multiple color variations in a flashing episode after receiving the trigger signal. When a wearer wearing a shoe with the full-color shoe light device installed therein walks, multiple color variations can be displayed along with his or her steps.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.