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US 8,145,066 B2Granted
Predistortion using FPGA
AssigneeARRIS Group, Inc.
InventorsDean Painchaud, Zhijian Sun, Marcel F. Schemmann
Life of this patent
Estimating the term…
Abstract
Predistortion logic for an optical communications laser or optical modulator, includes predistortion logic embodied in a field programmable gate array (FPGA). A first analog to digital converter (ADC) provides a representation of an RF signal at an input of the FPGA. A digital to analog converter provides a representation of an output of the FPGA to a laser or modulator.
Claims18
Predistortion logic for an optical communications laser or optical modulator, comprising:
- predistortion logic embodied in a field programmable gate array (FPGA);
- a first analog to digital converter (ADC) providing a representation of an RF signal at an input of the FPGA;
- and
- a digital to analog converter providing a representation of an output of the FPGA to the laser or modulator.
1 more element
A system comprising:
- an optical communications laser;
- predistortion logic embodied in a field programmable gate array (FPGA);
- a first analog to digital converter (ADC) providing a representation of an RF signal at an input of the FPGA;
- and
- a digital to analog converter providing a representation of an output of the FPGA to the laser.
2 more elements
Dependencies are inferred from the claim text.