Automatic reference frequency compensation
US8201010B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 18, 2010 |
| Grant date | Jun 12, 2012 |
| Priority date | — |
| Expiry date | Jan 13, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F13/426
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
In a first embodiment of the present invention, a method for operating a device having a device reference clock, in a system including a host with a host reference clock is provided, the method comprising: beginning a link negotiation stage between the device and the host using the device reference clock; during the link negotiation stage, sampling data received from the host to determine a frequency offset of the host reference clock; applying the frequency offset to the device reference clock to create a corrected device reference clock; and completing the link negotiation stage using the corrected device reference clock. This completing may include either continuing the original link negotiation stage or restarting it.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.