Apparatus and method to change a processor clock frequency
US5815694A · kind A · utility
10Cited by
9References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 21, 1995 |
| Grant date | Sep 29, 1998 |
| Priority date | — |
| Expiry date | Dec 21, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F1/08
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An apparatus and method for providing a variable frequency clock source is described wherein the frequency may be changed while maintaining the phase of the clock signal. A frequency conversation circuit, such as a phase locked loop (PLL), is employed to change the frequency of the clock and is controlled by a control unit which maintains the phase of the output clock signal while undergoing a frequency change operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.