Plural status indication control method suitable for use in a communication device
US6438390B1 · kind B1 · utility
49Cited by
10References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 6, 1999 |
| Grant date | Aug 20, 2002 |
| Priority date | — |
| Expiry date | May 6, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M1/724
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A status indicator (301) in a communication device (102), such as a cellular telephone, is controlled to visually indicate a plurality of status information during a single indication period (602). During the indication period (602), the status indicator (301) is powered-on for a first predetermined time period (t1) to indicate, for example, no service, in-service or roaming status of the cellular telephone, and powered-on for a second predetermined time period (t3) to indicate, for example, message waiting status of the cellular telephone.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.