Electronic devices including indicator control circuits and related methods of controlling indicators
US6647278B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 8, 2002 |
| Grant date | Nov 11, 2003 |
| Priority date | — |
| Expiry date | Feb 8, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M1/724
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An electronic device includes an indicator that generates an indication of an event responsive to an indicator control signal from an indicator control circuit coupled between a processor and the indicator. The processor generates an indicator off-time value and an indicator on-time value from the processor. The indicator control circuit includes an off-time register, an on-time register, and an indicator control circuit. The off-time register stores the off-time value generated by a processor, and the on-time register stores the on-time value generated by the processor. The indicator control signal generator alternatingly enables and disables the indicator control signal based on the time values stored in the registers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.