Systems and methods for clock mode determination utilizing master clock frequency measurements
US7456765B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 24, 2005 |
| Grant date | Nov 25, 2008 |
| Priority date | — |
| Expiry date | May 3, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04J3/0685
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A system for determining a data converter clock operating mode includes measurement circuitry which measures a master clock frequency of a master clock signal and a frequency ratio between a frequency of a data clock signal and the master clock frequency. A mapping system maps the measurements of the master clock frequency, the frequency ratio, and a characteristic of an additional data clock signal to an operating mode of the data converter. In another embodiment, the mapping system maps measurements of the master clock frequency alone to a data converter operating mode. In a further embodiment, the measurement circuitry measures the master clock frequency of a master clock signal, which is received directly from a master clock signal source without a modification in the master clock frequency.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.