NRZ-to-RZ conversion for communication systems
US7155130B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 28, 2002 |
| Grant date | Dec 26, 2006 |
| Priority date | — |
| Expiry date | Dec 26, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B10/505
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A driver, e.g., for use with electro-optic (E/O) modulators. The driver is configured to generate a driving signal based on an electronic NRZ input data signal and an input clock signal. The driver converts the NRZ input data signal to an RZ format and produces an amplified RZ signal that can be applied to an E/O modulator. The amplification gain of the driver is adjustable to enable interfacing with different modulators. In one embodiment of the invention, the driving signal is generated based on a comparison between the NRZ input data signal and an offset clock signal generated from the input clock signal. The width of pulses in the driving signal, e.g., corresponding to logical “ones,” may be tuned by, e.g., changing the DC offset of the clock signal. The driver may be implemented as an ASIC configured to operate at the data rate of, e.g., 10 GBit/s.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.