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1. (WO2018178637) APPARATUS AND METHODS FOR MONITORING A MICROPHONE
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Pub. No.: WO/2018/178637 International Application No.: PCT/GB2018/050752
Publication Date: 04.10.2018 International Filing Date: 22.03.2018
IPC:
H04R 29/00 (2006.01) ,H04R 19/00 (2006.01)
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
R
LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
29
Monitoring arrangements; Testing arrangements
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
R
LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
19
Electrostatic transducers
Applicants: CIRRUS LOGIC INTERNATIONAL SEMICONDUCTOR LIMITED[GB/GB]; 7B Nightingale Way Quartermile Edinburgh EH3 9EG, GB
Inventors: LESSO, John Paul; GB
HARDY, Emmanuel Philippe Christian; GB
Agent: HASELTINE LAKE LLP; GB
Priority Data:
1706704.227.04.2017GB
62/479,07730.03.2017US
Title (EN) APPARATUS AND METHODS FOR MONITORING A MICROPHONE
(FR) APPAREIL ET PROCÉDÉS DE SURVEILLANCE D’UN MICROPHONE
Abstract:
(EN) This application describes an apparatus (300) for monitoring for blockage of an acoustic (1 10) port of a microphone device (100). The apparatus has a spectrum peak detect block (301) for receiving a microphone signal (SMIC) and determining, from the microphone signal, a resonance frequency (fH) and a quality factor (QH) of a resonance (202) associated with the acoustic port. A condition monitoring block (302) is configured to determine any change in resonance frequency and quality factor and to determine a blockage status for the microphone based on said detect changes. The condition monitoring block identifies a change in blockage status if there is a change in quality factor.
(FR) La présente invention concerne un appareil (300) permettant de surveiller le blocage d'un port acoustique (110) d’un dispositif de type microphone (100). L’appareil a un bloc de détection de crête de spectre (301) pour recevoir un signal de microphone (SMIC) et pour déterminer, à partir du signal de microphone, une fréquence de résonance (fH) et un facteur de qualité (QH) d’une résonance (202) associée au port acoustique. Un bloc de surveillance de condition (302) est configuré pour déterminer tout changement de fréquence de résonance et de facteur de qualité et pour déterminer un état de blocage pour le microphone sur la base desdits changements détectés. Le bloc de surveillance de condition identifie un changement d’état de blocage s’il y a un changement du facteur de qualité.
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)