Invention Grant
- Patent Title: Segmented echo cancellation filter for use in full-duplex communication systems
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Application No.: US18309022Application Date: 2023-04-28
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Publication No.: US12028126B1Publication Date: 2024-07-02
- Inventor: Hossein Sedarat , Roy T. Myers, Jr. , Ramin Shirani , Darren S. Engelkemier , Christopher Mash
- Applicant: Ethernovia Inc.
- Applicant Address: US CA San Jose
- Assignee: Ethernovia Inc.
- Current Assignee: Ethernovia Inc.
- Current Assignee Address: US CA San Jose
- Agency: Schwegman Lundberg & Woessner, P.A.
- Main IPC: H04B3/23
- IPC: H04B3/23 ; H04L5/14

Abstract:
Disclosed are systems, methods, and non-transitory computer-readable media for a segmented ECF that includes multiple filter components to replicate an echo pulse response. The different filter components are used to replicate different portions of the echo pulse response. Each filter components can include filter coefficients of different sizes based on the portions of the echo pulse response that is replicated by the filter component. For example, a filter component that replicates a portion of the echo pulse response that includes a large reflection can include large filter coefficients suitable to replicate the larger reflection. In contrast, a filter component that replicates a portion of the echo pulse response that includes smaller reflections can include smaller filter coefficients that are suitable to replicate the smaller reflection. The output of each of the filter components is combined to replicate the full echo pulse response.
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