IP Library Granted Patent US 10,978,088
Granted Patent B2
US 10,978,088 · App. 16/656,058 · Granted Apr 13, 2021

Methods and systems for improved measurement, entity and parameter estimation, and path propagation effect measurement and mitigation in source signal separation

Inventors: Kevin M. Short (Durham, NH); Brian T. Hone (Ipswich, MA); Pascal Brunet (Pasadena, CA)
Assignee: XMOS INC.
G10L21/0272G01S3/74G01S7/288G01S13/723G01S13/88G10L13/02G10L15/26H04R3/00G01S2007/2883
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Quick Facts
Patent No.
US 10,978,088
App. No.
16/656,058
Granted
Apr 13, 2021
Kind
B2
Abstract

A method of processing a signal includes taking a signal recorded by a plurality of signal recorders, applying at least one super-resolution technique to the signal to produce an oscillator peak representation of the signal comprising a plurality of frequency components for a plurality of oscillator peaks, computing at least one Cross Channel Complex Spectral Phase Evolution (XCSPE) attribute for the signal to produce a measure of a spatial evolution of the plurality of oscillator peaks between the signal, identifying a known predicted XCSPE curve (PXC) trace corresponding to the frequency components and at least one XCSPE attribute of the plurality of oscillator peaks and utilizing the identified PXC trace to determine a spatial attribute corresponding to an origin of the signal.

Claims (16)

1. A method of processing a signal comprising:

taking a signal recorded by a plurality of signal recorders;

applying at least one super-resolution technique to the signal to produce an oscillator peak representation of the signal comprising a plurality of frequency components for a plurality of oscillator peaks;

computing at least one Cross Channel Complex Spectral Phase Evolution (XCSPE) attribute for the signal to produce a measure of a spatial evolution of the plurality of oscillator peaks between the signal recorders;

identifying a known predicted XCSPE curve (PXC) trace corresponding to the frequency components and at least one XCSPE attribute of the plurality of oscillator peaks;

measuring deviations away from the PXC trace of a plotted position for each of the plurality of oscillator peaks; and

determining a path propagation effect (PPE) based, at least in part, on the deviations and an amount of reverberation in the original signal, wherein the PPE comprises at least a phase related deviation.

2. The method of claim 1 further comprising:

utilizing the PPE to identify a signal emitting entity.

3. The method of claim 1 further comprising:

utilizing the PPE to remove an effect of reverberation from the signal.

4. The method of claim 1 , wherein the PPE comprises an amplitude related deviation.

5. The method of claim 4 further comprising:

utilizing the PPE to identify a signal emitting entity.

6. The method of claim 4 further comprising:

utilizing the PPE to remove an effect of reverberation from the signal.

Assignments (3)
MERGER AND CHANGE OF NAME Recorded Dec 30, 2019
From: SETEM TECHNOLOGIES, INC.; XMOS INC.; SETEM TECHNOLOGIES, INC.
To: XMOS INC.
Reel/Frame 051386/0183 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 27, 2019
From: SHORT, KEVIN M.; HONE, BRIAN T.; BRUNET, PASCAL
To: KAONYX LABS, LLC
Reel/Frame 051379/0697 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 27, 2019
From: KAONYX LABS, LLC
To: SETEM TECHNOLOGIES, INC.
Reel/Frame 051443/0259 →
Continuity (8)
Division 14681922 · Apr 8, 2015
Continuation In Part 14179158 · Feb 12, 2014
Continuation 13886902 · May 3, 2013
Provisional Application 61749606 · Jan 7, 2013
Provisional Application 61785029 · Mar 14, 2013
Provisional Application 61642805 · May 4, 2012
Provisional Application 61977357 · Apr 9, 2014
Related Publication 20200058316A1 · Feb 20, 2020
Cited By (1)
US 12,334,073