Data processing machine with interrupt control for varying processing speed
US4981296A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 12, 1988 |
| Grant date | Jan 1, 1991 |
| Priority date | — |
| Expiry date | Sep 12, 2008 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F9/3869
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A data processing machine is provided with a microprocessor that functions in response to signals output by a clock oscillator to selectively change the data-processing speed of the microprocessor. The data processing machine contains a circuit for generating interruption signals at specific intervals by dividing the signals output by the clock oscillator, a signal-input device for inputting command signals that cause the microprocessor to change the data-processing speed, and a controller which, in response to signals from the input device, executes a stand-by process each time a specific number of interruption signals generated by the interruption signal generating circuit is received.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.