Data-dependent jitter pre-emphasis for high-speed serial link transmitters
US7961778B2 · kind B2 · utility
4Cited by
5References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 22, 2008 |
| Grant date | Jun 14, 2011 |
| Priority date | — |
| Expiry date | Jul 22, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04J3/047
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
In the context of high-speed serial links, data-dependent jitter compensation techniques performed using phase pre-distortion. Broadly contemplated is an expansion of the notion of pre-emphasis beyond conventional amplitude compensation of ISI, whereby phase pre-emphasis for compensating data-dependent jitter (DDJ) is introduced. DDJ can be addressed by exploiting the relationship between the data sequence and the timing deviation. Phase pre-emphasis improves the signal integrity with little additional power consumption in the transmitter and with no cross-talk penalty.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.