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1. (WO2018018002) DIGITAL MICROPHONE ASSEMBLY WITH IMPROVED FREQUENCY RESPONSE AND NOISE CHARACTERISTICS
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Pub. No.: WO/2018/018002 International Application No.: PCT/US2017/043372
Publication Date: 25.01.2018 International Filing Date: 21.07.2017
IPC:
H04R 19/00 (2006.01) ,H04R 3/06 (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
19
Electrostatic transducers
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
R
LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
3
Circuits for transducers
04
for correcting frequency response
06
of electrostatic transducers
Applicants: KNOWLES ELECTRONICS, LLC[US/US]; 1151 Maplewood Drive Itasca, Illinois 60143, US
Inventors: SHAJAAN, Mohammad; DK
FÜRST, Claus Erdmann; DK
HØVESTEN, Per Flemming; DK
BERTHELSEN, Kim Spetzler; DK
THOMSEN, Henrik; DK
Agent: BELDEN, Brett P.; US
GUNDERSEN, Jeffrey S.; US
Priority Data:
15/216,92822.07.2016US
Title (EN) DIGITAL MICROPHONE ASSEMBLY WITH IMPROVED FREQUENCY RESPONSE AND NOISE CHARACTERISTICS
(FR) ENSEMBLE MICROPHONE NUMÉRIQUE AVEC RÉPONSE DE FRÉQUENCE ET CARACTÉRISTIQUES DE BRUIT AMÉLIORÉES
Abstract:
(EN) A microphone assembly includes an acoustic transducer element configured to convert sound into a microphone signal in accordance with a transducer frequency response including a first highpass cut-off frequency. The microphone assembly additionally includes a processing circuit including a signal amplification path configured to receive, sample and digitize the microphone signal to provide a digital microphone signal. A frequency response of the signal amplification path includes a second highpass cut-off frequency which is higher than the first highpass cut-off frequency of the acoustic transducer element.
(FR) Un ensemble microphone comprend un élément transducteur acoustique configuré pour convertir le son en un signal de microphone, conformément à une réponse de fréquence du transducteur comprenant une première fréquence de coupure de filtre passe-haut. L'ensemble microphone comprend en outre un circuit de traitement comprenant un trajet d'amplification de signal configuré pour recevoir, échantillonner et numériser le signal de microphone pour fournir un signal de microphone numérique. Une réponse en fréquence du trajet d'amplification de signal comprend une seconde fréquence de coupure de filtre passe-haut qui est supérieure à la première fréquence de coupure de filtre passe-haut de l'élément transducteur acoustique.
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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)