Visual notification methods for candy-bar type cellphones
US8134306B2 · kind B2 · utility
1,175Cited by
12References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 5, 2008 |
| Grant date | Mar 13, 2012 |
| Priority date | — |
| Expiry date | Dec 31, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02D30/70
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A wireless handheld communications device with a liquid crystal display, especially, a field sequential liquid crystal display, includes a visual notification for a powered up, inactive state. The visual notification is preferably through a light emitting diode that may be part of the backlighting system for the LCD or may be independent from the backlighting system. The waveforms, periodicity, color selection, and color sequencing may be customizable by one or both of the manufacturer and user.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.