Title:
ANGULAR DISCRIMINATION OF ACOUSTICAL OR RADIO SIGNALS
Document Type and Number:
WIPO Patent Application WO/2005/109951
Kind Code:
A1
Abstract:
Methods and apparatuses for angular discrimination of communication signals are described. Two sensors spatially separated from each other sample their captured signals and transform them in a given transform kernel (e.g. Fourier) into two transformed signals. If the phase difference between the transformed signals for each kernel bin (e.g. frequency band) is greater than a phase difference threshold, a first transformed signal is filtered, inverse transformed and output to a listener. The method and apparatus can be employed in hearing aids or microphone systems.
Inventors:
BEAVIS RUSSELL H (US)
KANE DEREK G (US)
KANE DEREK G (US)
Application Number:
PCT/US2005/015722
Publication Date:
November 17, 2005
Filing Date:
May 05, 2005
Export Citation:
Assignee:
DEKA PRODUCTS LP (US)
BEAVIS RUSSELL H (US)
KANE DEREK G (US)
BEAVIS RUSSELL H (US)
KANE DEREK G (US)
International Classes:
G01S3/80; G01S3/808; G10K11/34; G10L21/02; H04R1/02; H04R3/00; H04R27/00; H04R25/00; (IPC1-7): H04R3/00; G10K11/34
Foreign References:
| EP0820210A2 | 1998-01-21 | |||
| EP0802699A2 | 1997-10-22 | |||
| US20040037437A1 | 2004-02-26 |
Attorney, Agent or Firm:
Sunstein, Bruce D. (LLP 125 Summer Stree, Boston MA, US)
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