Back to results
US 12,598,097 B2Granted
Sparse transmitter finite impulse response equalizer
AssigneeMellanox Technologies, Ltd.
InventorBjarke Vad-Miller
Life of this patent
Estimating the term…
Abstract
Data transceivers including a transmitter configured with a digital filter, and a receiver configured with an equalizer, are equipped with logic to measure a combined pulse response to a symbol generated by the transmitter at an output of the equalizer, adjust the combined pulse response by an impulse response of the digital filter to generate an adjusted pulse response, and modify the digital filter with one or more floating taps based on the adjusted pulse response.
Claims20
A data transceiver comprising:
- a transmitter configured with a digital filter;
- a receiver configured with an equalizer;
- logic to:
- measure a combined pulse response to a symbol generated by the transmitter at an output of the equalizer;
- adjust the combined response by an impulse response of the digital filter to generate an adjusted pulse response;
- and
- modify the digital filter with one or more floating taps based on the adjusted pulse response.
4 more elements
A data transmitter comprising:
- a digital filter;
- logic to:
- measure a combined pulse response of a communication link and a receiver coupled to the communication link;
- remove an impulse response of the digital filter from the combined pulse response to generate an adjusted pulse response;
- and
- add floating taps to the digital filter at locations based on the adjusted pulse response.
3 more elements
A process for calibrating a data transmitter, the process comprising:
- measuring a combined pulse response to a symbol generated by the transmitter at an output of an equalizer;
- adjusting the combined pulse response by an impulse response of a pre-distortion digital filter for the transmitter to generate an adjusted pulse response;
- and
- modifying the pre-distortion digital filter with one or more floating taps based on the adjusted pulse response.
1 more element
Dependencies are inferred from the claim text.