SIGNAL PROCESSING METHODS AND SYSTEM FOR BEAM FORMING WITH IMPROVED SIGNAL TO NOISE RATIO

SIGNAL PROCESSING METHODS AND SYSTEM FOR BEAM FORMING WITH IMPROVED SIGNAL TO NOISE RATIO

A method and apparatus are provided for generating a directional output signal from sound received by at least two microphones arranged as microphone array. The method includes transforming the sound received by each of the microphones and represented by analog-to-digital converted time-domain signa...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
1. Verfasser: RUWISCH, Dietmar
Format: Patent
Sprache:eng
Schlagworte:
DEAF-AID SETS
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS
PUBLIC ADDRESS SYSTEMS
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
container_end_page
container_issue
container_start_page
container_title
container_volume
creator RUWISCH, Dietmar
description A method and apparatus are provided for generating a directional output signal from sound received by at least two microphones arranged as microphone array. The method includes transforming the sound received by each of the microphones and represented by analog-to-digital converted time-domain signals into corresponding complex-valued frequency-domain microphone signals each having a frequency component value for each of a plurality of frequency components, calculating from the complex-valued frequency-domain microphone signals for a Beam Focus Direction a Beam Focus Spectrum by means of a Characteristic Function with values between zero and one, said Beam Focus Spectrum comprises, for each of the plurality of frequency components, a time-dependent, real-valued attenuation factor, multiplying, for each of the plurality of frequency components, the attenuation factor with the frequency component value of the complex-valued frequency-domain microphone signal to obtain a directional frequency component value, and forming a frequency-domain directional output signal.
format Patent
fullrecord <record><control><sourceid>epo_EVB</sourceid><recordid>TN_cdi_epo_espacenet_US2022132241A1</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>US2022132241A1</sourcerecordid><originalsourceid>FETCH-epo_espacenet_US2022132241A13</originalsourceid><addsrcrecordid>eNrjZIgM9nT3c_RRCAjyd3YNDvb0c1fwdQ3x8HcJVnD0c1EIjgwOcfVVcPMPUnBydQQzfEFqwj1DPBQ8fYG6wlyBqiBmhPgr-Pl7BrsqBDmGePrzMLCmJeYUp_JCaW4GZTfXEGcP3dSC_PjU4oLE5NS81JL40GAjAyMjQ2MjIxNDR0Nj4lQBAOUhMk8</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>patent</recordtype></control><display><type>patent</type><title>SIGNAL PROCESSING METHODS AND SYSTEM FOR BEAM FORMING WITH IMPROVED SIGNAL TO NOISE RATIO</title><source>esp@cenet</source><creator>RUWISCH, Dietmar</creator><creatorcontrib>RUWISCH, Dietmar</creatorcontrib><description>A method and apparatus are provided for generating a directional output signal from sound received by at least two microphones arranged as microphone array. The method includes transforming the sound received by each of the microphones and represented by analog-to-digital converted time-domain signals into corresponding complex-valued frequency-domain microphone signals each having a frequency component value for each of a plurality of frequency components, calculating from the complex-valued frequency-domain microphone signals for a Beam Focus Direction a Beam Focus Spectrum by means of a Characteristic Function with values between zero and one, said Beam Focus Spectrum comprises, for each of the plurality of frequency components, a time-dependent, real-valued attenuation factor, multiplying, for each of the plurality of frequency components, the attenuation factor with the frequency component value of the complex-valued frequency-domain microphone signal to obtain a directional frequency component value, and forming a frequency-domain directional output signal.</description><language>eng</language><subject>DEAF-AID SETS ; ELECTRIC COMMUNICATION TECHNIQUE ; ELECTRICITY ; LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS ; PUBLIC ADDRESS SYSTEMS</subject><creationdate>2022</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&amp;date=20220428&amp;DB=EPODOC&amp;CC=US&amp;NR=2022132241A1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,778,883,25551,76302</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&amp;date=20220428&amp;DB=EPODOC&amp;CC=US&amp;NR=2022132241A1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>RUWISCH, Dietmar</creatorcontrib><title>SIGNAL PROCESSING METHODS AND SYSTEM FOR BEAM FORMING WITH IMPROVED SIGNAL TO NOISE RATIO</title><description>A method and apparatus are provided for generating a directional output signal from sound received by at least two microphones arranged as microphone array. The method includes transforming the sound received by each of the microphones and represented by analog-to-digital converted time-domain signals into corresponding complex-valued frequency-domain microphone signals each having a frequency component value for each of a plurality of frequency components, calculating from the complex-valued frequency-domain microphone signals for a Beam Focus Direction a Beam Focus Spectrum by means of a Characteristic Function with values between zero and one, said Beam Focus Spectrum comprises, for each of the plurality of frequency components, a time-dependent, real-valued attenuation factor, multiplying, for each of the plurality of frequency components, the attenuation factor with the frequency component value of the complex-valued frequency-domain microphone signal to obtain a directional frequency component value, and forming a frequency-domain directional output signal.</description><subject>DEAF-AID SETS</subject><subject>ELECTRIC COMMUNICATION TECHNIQUE</subject><subject>ELECTRICITY</subject><subject>LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS</subject><subject>PUBLIC ADDRESS SYSTEMS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2022</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZIgM9nT3c_RRCAjyd3YNDvb0c1fwdQ3x8HcJVnD0c1EIjgwOcfVVcPMPUnBydQQzfEFqwj1DPBQ8fYG6wlyBqiBmhPgr-Pl7BrsqBDmGePrzMLCmJeYUp_JCaW4GZTfXEGcP3dSC_PjU4oLE5NS81JL40GAjAyMjQ2MjIxNDR0Nj4lQBAOUhMk8</recordid><startdate>20220428</startdate><enddate>20220428</enddate><creator>RUWISCH, Dietmar</creator><scope>EVB</scope></search><sort><creationdate>20220428</creationdate><title>SIGNAL PROCESSING METHODS AND SYSTEM FOR BEAM FORMING WITH IMPROVED SIGNAL TO NOISE RATIO</title><author>RUWISCH, Dietmar</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_US2022132241A13</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>2022</creationdate><topic>DEAF-AID SETS</topic><topic>ELECTRIC COMMUNICATION TECHNIQUE</topic><topic>ELECTRICITY</topic><topic>LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS</topic><topic>PUBLIC ADDRESS SYSTEMS</topic><toplevel>online_resources</toplevel><creatorcontrib>RUWISCH, Dietmar</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>RUWISCH, Dietmar</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>SIGNAL PROCESSING METHODS AND SYSTEM FOR BEAM FORMING WITH IMPROVED SIGNAL TO NOISE RATIO</title><date>2022-04-28</date><risdate>2022</risdate><abstract>A method and apparatus are provided for generating a directional output signal from sound received by at least two microphones arranged as microphone array. The method includes transforming the sound received by each of the microphones and represented by analog-to-digital converted time-domain signals into corresponding complex-valued frequency-domain microphone signals each having a frequency component value for each of a plurality of frequency components, calculating from the complex-valued frequency-domain microphone signals for a Beam Focus Direction a Beam Focus Spectrum by means of a Characteristic Function with values between zero and one, said Beam Focus Spectrum comprises, for each of the plurality of frequency components, a time-dependent, real-valued attenuation factor, multiplying, for each of the plurality of frequency components, the attenuation factor with the frequency component value of the complex-valued frequency-domain microphone signal to obtain a directional frequency component value, and forming a frequency-domain directional output signal.</abstract><oa>free_for_read</oa></addata></record>
fulltext fulltext_linktorsrc
identifier
ispartof
issn
language eng
recordid cdi_epo_espacenet_US2022132241A1
source esp@cenet
subjects DEAF-AID SETS
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS
PUBLIC ADDRESS SYSTEMS
title SIGNAL PROCESSING METHODS AND SYSTEM FOR BEAM FORMING WITH IMPROVED SIGNAL TO NOISE RATIO
url https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-16T00%3A51%3A04IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-epo_EVB&rft_val_fmt=info:ofi/fmt:kev:mtx:patent&rft.genre=patent&rft.au=RUWISCH,%20Dietmar&rft.date=2022-04-28&rft_id=info:doi/&rft_dat=%3Cepo_EVB%3EUS2022132241A1%3C/epo_EVB%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_id=info:pmid/&rfr_iscdi=true