Use of multi-level modulation signaling for short reach data communications
US8964818B2 · kind B2 · utility
3Cited by
1References
18Claims
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Key dates
| Filing date | Jan 11, 2013 |
| Grant date | Feb 24, 2015 |
| Priority date | — |
| Expiry date | Jan 11, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L25/03057
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A short reach communication system includes a plurality of communication SERDES that communicate data over a short reach channel medium such as a backplane connection (e.g., PCB trace) between, for example, chips located on a common PCB. A multi-level modulated data signal is generated to transmit/receive data over the short reach channel medium. Multi-level modulated data signals, such as four-level PAM, reduce the data signal rate therefore reducing insertion loss, power, complexity of the circuits and required chip real estate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.