Receiver for Echo and Crosstalk Cancellation and Receiving Method Thereof
First Claim
1. A receiver for echo and crosstalk cancellation comprising:
- a level decision module for receiving an estimation signal and determining a plurality of levels and a plurality of level thresholds corresponding to the plurality of levels according to the estimation signal to generate a first digital signal;
a digital to analog converter for receiving the first digital signal and converting the first digital signal into a first analog signal according to the plurality of levels and the plurality of level thresholds;
an analog to digital converter for receiving a first difference signal corresponding to signal difference between a reception signal and the first analog signal and converting the first difference signal into a second digital signal; and
a response module for receiving the first digital signal and generating a response signal according to the first digital signal;
wherein the response signal compensates the second digital signal to generate a back-end input signal.
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Abstract
A receiver for echo and crosstalk cancellation includes a level decision module, a digital-to-analog converter (DAC), an analog-to-digital converter (ADC) and a response module. The level decision module determines plural levels and plural level magnitudes according to an estimated signal to generate a first digital signal. The DAC converts the first digital signal into a first analog signal according to the levels and the level magnitudes. The ADC receives a first difference signal between the receiving signal and the first analog signal, and converts the first difference signal into a second digital signal. According to the first digital signal, the response module generates a response signal compensating the second digital signal to generate a back-end input signal.
12 Citations
23 Claims
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1. A receiver for echo and crosstalk cancellation comprising:
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a level decision module for receiving an estimation signal and determining a plurality of levels and a plurality of level thresholds corresponding to the plurality of levels according to the estimation signal to generate a first digital signal; a digital to analog converter for receiving the first digital signal and converting the first digital signal into a first analog signal according to the plurality of levels and the plurality of level thresholds; an analog to digital converter for receiving a first difference signal corresponding to signal difference between a reception signal and the first analog signal and converting the first difference signal into a second digital signal; and a response module for receiving the first digital signal and generating a response signal according to the first digital signal; wherein the response signal compensates the second digital signal to generate a back-end input signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A receiving method for echo and crosstalk cancellation comprising:
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determining a plurality of levels and a plurality of level thresholds corresponding to the plurality of levels according to an estimation signal; generating a first digital signal according to the plurality of levels and the estimation signal; converting the first digital signal into a first analog signal according to the plurality of levels and the plurality of level thresholds; converting a first difference signal corresponding to signal difference between a reception signal and the first analog signal into a second digital signal; and generating a response signal for compensating the second digital signal according to the first digital signal so as to generate a back-end input signal. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23)
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Specification