Back to results
US 12,057,974 B2Granted
Decision feed forward equalization for partial response equalized signal including pre-cursor cancelation
AssigneeNVIDIA Corporation
InventorsVishnu Balan, Viswanath Annampedu, Pervez Mirzra Aziz
Life of this patent
Estimating the term…
Abstract
A receiver includes a decision feed forward equalization (DFFE) system that generates, based on a digital signal that includes at least one intersymbol interference (ISI) value introduced by a communication channel, a detected signal including a set of detected symbol values. The DFFE system cancels the at least one ISI value from the detected signal using the set of estimated transmitted symbols and a set of tap coefficients to obtain a compensated signal and a set of compensated symbol values.
Claims21
A receiver comprising:
- an analog-to-digital converter (ADC) to generate a digital output comprising a set of bits corresponding to a received signal, wherein the digital output comprises at least one intersymbol interference (ISI) value introduced by a communication channel;
- a receiver, coupled to the ADC, to generate, based on the digital output, a detected signal comprising a set of detected symbol values;
- and
- a decision feed forward equalization (DFFE) system coupled to the receiver, the DFFE system comprising:
- DFFE circuitry to cancel the at least one ISI value from the detected signal using the set of detected symbols values and a set of tap coefficients to obtain a compensated signal and a set of compensated symbol values.
2 more elements
A method of a receiver, the method comprising:
- receiving a signal over a communication channel;
- generating a digital output comprising a set of bits corresponding to the signal, wherein the digital output comprises at least one intersymbol interference (ISI) value introduced by the communication channel;
- generating a detected signal comprising a set of detected symbol values based on the digital output;
- and
- canceling the at least one ISI value from the detected signal using a decision feed forward equalization (DFFE) scheme with the set of detected symbol values and a set of tap coefficients to obtain a compensated signal and a set of compensated symbol values.
2 more elements
A system comprising:
- a transmitter;
- and
- a receiver communicatively coupled to the transmitter via a communication channel, wherein the receiver comprises:
- an analog-to-digital converter (ADC) to generate a digital output comprising a set of bits corresponding to a received signal, wherein the digital output comprises at least one intersymbol interference (ISI) value introduced by the communication channel;
- a receiver, coupled to the ADC, to generate, based on the digital output, a detected signal comprising a set of detected symbol values;
- and
- a decision feed forward equalization (DFFE) system coupled to the receiver, the DFFE system comprising:
- DFFE circuitry to cancel the at least one ISI value from the detected signal using the set of detected symbol values and a set of tap coefficients to obtain a compensated signal and a set of compensated symbol values.
5 more elements
Dependencies are inferred from the claim text.