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Systems, methods, and devices for phase-based processing of multi-channel signals

A multi-channel, signal technology, applied in the field of signal processing

Inactive Publication Date: 2014-10-29
QUALCOMM INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, a suitable noise reference may not be directly available in these cases, and it may be necessary to derive the noise reference indirectly

Method used

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  • Systems, methods, and devices for phase-based processing of multi-channel signals
  • Systems, methods, and devices for phase-based processing of multi-channel signals
  • Systems, methods, and devices for phase-based processing of multi-channel signals

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Embodiment Construction

[0062] The real world is full of multiple noise sources, including single-point noise sources, which often intrude into multiple sounds, causing reverberation. Background acoustic noise may include numerous noise signals generated by the general environment and interfering signals generated by other people's background conversation, as well as reflections and reverberations from the desired acoustic signal and / or any other signal.

[0063] Environmental noise can affect the intelligibility of sensed audio signals (eg, near-end speech signals). It may be desirable to use signal processing to distinguish a desired audio signal from background noise. For example, for applications where communications may occur in noisy environments, it may be desirable to use speech processing methods to distinguish speech signals from background noise and enhance their intelligibility. This processing can be important in many aspects of everyday communication, since noise is almost always prese...

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Abstract

Phase-based processing of a multichannel signal, and applications including proximity detection, are disclosed.

Description

[0001] Claim of priority under 35 U.S.C. §119 [0002] The title of this patent application claimed on June 9, 2009 and assigned to the assignee of this case is "Systems, methods, apparatus, and computer-readable media for consistency detection (Systems, methods, apparatus, and computer-readable media for coherence detection)" U.S. Provisional Patent Application No. 61 / 185,518. This patent application also claims that the application filed on September 8, 2009 and assigned to the assignee of this case is titled "Systems, methods, apparatus, and computer-readable media for consistency detection readable media for coherence detection)" U.S. Provisional Patent Application No. 61 / 240,318. [0003] This patent application also asserts that the patent application filed on July 20, 2009 and assigned to the assignee of this case is entitled "Systems, methods, devices, and computer-readable media for phase-based processing of multi-channel signals (Systems, methods , apparatus, and co...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04R3/00G10L21/0332
CPCH04R3/005H04R2205/022G10L2021/02166H04R29/006H04R3/00
Inventor 埃里克·维塞尔南·刘
Owner QUALCOMM INC