Mobile telephone having a power-conserving subroutine
US5291542A · kind A · utility
47Cited by
10References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 10, 1992 |
| Grant date | Mar 1, 1994 |
| Priority date | — |
| Expiry date | Feb 10, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02D30/70
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A circuit arrangement for a mobile telephone comprises a microprocessor responsive to a clock signal for controlling its functions, and a signalling circuit, e.g. a modem which is coupled to the microprocessor to provide an output clock signal thereto. In the idle states of the processor, the output clock signal is stopped, using a stop signal from the microprocessor. This gives use to reduce power consumption and a consequential increase in battery life.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.