Invention Grant
- Patent Title: Adaptive analog echo/next cancellation
- Patent Title (中): 自适应模拟回波/下一个取消
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Application No.: US10942761Application Date: 2004-09-16
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Publication No.: US07688968B1Publication Date: 2010-03-30
- Inventor: Xiaopeng Chen , Runsheng He
- Applicant: Xiaopeng Chen , Runsheng He
- Applicant Address: BM Hamilton
- Assignee: Marvell International Ltd.
- Current Assignee: Marvell International Ltd.
- Current Assignee Address: BM Hamilton
- Main IPC: H04M9/08
- IPC: H04M9/08

Abstract:
An adaptive analog echo/near-end crosstalk (NEXT) cancellation system includes a selector that outputs a first error control signal when a first receive signal does not include a remotely transmitted signal and a second error control signal when the first receive signal includes a remotely transmitted signal. An echo/NEXT cancellation module communicates with the selector and generates an estimated echo/NEXT signal based on the first error control signal and a first transmit signal when the first receive signal does not include a remotely transmitted signal and based on the second error control signal and the first transmit signal when the first receive signal includes a remotely transmitted signal. A summing module receives the first receive signal and the estimated echo/NEXT signal and generates an echo/NEXT filtered receive signal by subtracting the estimated echo/NEXT signal from the first receive signal.
Public/Granted literature
- US3128093A Guideway for document sorting machines Public/Granted day:1964-04-07
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