Invention Grant
US07792281B1 Delay estimation and audio signal identification using perceptually matched spectral evolution
有权
使用感知匹配的光谱演化的延迟估计和音频信号识别
- Patent Title: Delay estimation and audio signal identification using perceptually matched spectral evolution
- Patent Title (中): 使用感知匹配的光谱演化的延迟估计和音频信号识别
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Application No.: US11301898Application Date: 2005-12-13
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Publication No.: US07792281B1Publication Date: 2010-09-07
- Inventor: Mohammad Reza Zad-Issa , Hundraj Gopal
- Applicant: Mohammad Reza Zad-Issa , Hundraj Gopal
- Applicant Address: US CA Newport Beach
- Assignee: Mindspeed Technologies, Inc.
- Current Assignee: Mindspeed Technologies, Inc.
- Current Assignee Address: US CA Newport Beach
- Agency: Farjami & Farjami LLP
- Main IPC: H04M9/08
- IPC: H04M9/08
Abstract:
A signal identification method comprises receiving an incoming signal having incoming frames; receiving an outgoing signal having outgoing frames; extracting outgoing features from a current frame of the outgoing frames; extracting incoming features from a first previous frame of the incoming frames; calculating first feature distances based on corresponding outgoing features and incoming features; deriving a first score based on the first feature distances; extracting incoming features from a second previous frame of the incoming frames; calculating second feature distances based on corresponding outgoing features and incoming features from the second previous frame; deriving a second score based on the second feature distances; and determining whether the outgoing signal includes the incoming signal based on the first score and the second score.
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