Fully digital CMOS based optical receiver
US9331790B2 · kind B2 · utility
1Cited by
8References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 19, 2014 |
| Grant date | May 3, 2016 |
| Priority date | — |
| Expiry date | Dec 19, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L7/0075
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A completely digital optical receiver is provided. The optical receiver includes a photodiode configured to provide a photodiode output responsive to an on-off keyed (OOK) optical input. Two or more digital inverters connected in series with each other are configured to receive the photodiode output and provide an amplified digital output. A digital clock and data recovery (CDR) circuit receives the amplified digital output and provides a clock output and a data output. A digital photodiode discharging circuit is connected to the photodiode and controlled by the clock output of the CDR circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.