Title:
WIDEBAND BEAMFORMING WITH MAIN LOBE STEERING AND INTERFERENCE CANCELLATION AT MULTIPLE INDEPENDENT FREQUENCIES AND SPATIAL LOCATIONS
Document Type and Number:
WIPO Patent Application WO/2022/219594
Kind Code:
A1
Abstract:
This disclosure describes a wide band array that uses wideband beamforming with interference cancellation and main lobe steering at multiple independent frequencies and spatial locations. One embodiment uses 1-N analysis filter bands coupled to 1-N narrowband beamformers with the output processed through one through N synthesis bands and summed together to produce the full spectrum output signal. Another embodiment uses 1-M sensors with Discrete Fourier Transforms (DFT) and 1-N frequency bins coupled to 1-N narrowband beamformers processed through an Inverse DFT to produce the full spectrum output signal. Another embodiment uses one 1 N sensor subarrays and 1-N frequency bands coupled to 1-N narrowband beamformers summed together to produce the full spectrum output signal. Another embodiment uses 1-M sensor arrays with 1-N frequency hands coupled to 1-N narrowband beamformers summed together to produce the full spectrum output signal.
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Inventors:
BATZER TRISHA (US)
Application Number:
PCT/IB2022/053551
Publication Date:
October 20, 2022
Filing Date:
April 14, 2022
Export Citation:
Assignee:
CLEARONE INC (US)
International Classes:
H01Q1/00; H01Q3/26; H01Q21/29; H01Q25/00; H04B1/10
Domestic Patent References:
WO2000016308A1 | 2000-03-23 |
Foreign References:
US20130101073A1 | 2013-04-25 | |||
US20160013855A1 | 2016-01-14 | |||
US20150092890A1 | 2015-04-02 | |||
US20080068266A1 | 2008-03-20 |
Attorney, Agent or Firm:
BOOTH, Matthew (US)
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