Invention Grant
- Patent Title: Noise ingress cancelation
- Patent Title (中): 噪声进入取消
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Application No.: US13721853Application Date: 2012-12-20
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Publication No.: US08971307B2Publication Date: 2015-03-03
- Inventor: Leo Montreuil , Rick Meller
- Applicant: Cisco Technology, Inc.
- Applicant Address: US CA San Jose
- Assignee: Cisco Technology, Inc.
- Current Assignee: Cisco Technology, Inc.
- Current Assignee Address: US CA San Jose
- Main IPC: H04B7/212
- IPC: H04B7/212 ; H04L27/01 ; H04B1/10
Abstract:
A demodulator can include an ingress exciser configured to remove ingress noise from a burst mode digital input signal that is above a predetermined threshold and resides within a narrowband. An adaptive equalizer can be configured to adaptively equalize an estimate of the signal provided from the ingress exciser and to provide an adaptively equalized signal. An ingress predictor can be configured to subtract an estimate of remaining predicted ingress noise from the adaptively equalized signal to provide a resultant signal that is substantially free of the ingress noise.
Public/Granted literature
- US20140177620A1 NOISE INGRESS CANCELATION Public/Granted day:2014-06-26
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