Speed-matching control method and circuit
US7256628B2 · kind B2 · utility
9Cited by
21References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 26, 2003 |
| Grant date | Aug 14, 2007 |
| Priority date | — |
| Expiry date | Sep 26, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F1/12
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
One embodiment of the present invention provides a system that matches speeds of asynchronous operation between a local chip and a neighboring chip. The system derives an internal frequency signal from an internal oscillator on the local chip, and receives an external frequency signal from a neighboring chip. The system then compares the internal frequency signal with the external frequency signal to generate a control signal, which is applied to the local chip to adjust the operating speed of the local chip, and applied to the internal oscillator to adjust the frequency of the internal oscillator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.