User interface and associated method for indicating status using keypad backlights
US7120471B2 · kind B2 · utility
5Cited by
3References
2Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 28, 2003 |
| Grant date | Oct 10, 2006 |
| Priority date | — |
| Expiry date | Aug 3, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02D30/70
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A method for indicating status on a programmed communication device wherein each of one or more backlights is associated with a respective key of a plurality of keys. Status information to be communicated to a user of the communication device is then generated, and one or more backlights are illuminated according to a pattern corresponding to the status information. Thus, a visual graphical display is not necessary, cost is reduced, volume is conserved, and reliability is increased.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.