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MX2009006767A - Mejora de señal de vector de campo cercano. - Google Patents

Mejora de señal de vector de campo cercano.

Info

Publication number
MX2009006767A
MX2009006767A MX2009006767A MX2009006767A MX2009006767A MX 2009006767 A MX2009006767 A MX 2009006767A MX 2009006767 A MX2009006767 A MX 2009006767A MX 2009006767 A MX2009006767 A MX 2009006767A MX 2009006767 A MX2009006767 A MX 2009006767A
Authority
MX
Mexico
Prior art keywords
noise
signals
disagree
creates
attenuation value
Prior art date
Application number
MX2009006767A
Other languages
English (en)
Inventor
Jon C Taenzer
Original Assignee
Step Labs Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=39542864&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=MX2009006767(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Step Labs Inc filed Critical Step Labs Inc
Publication of MX2009006767A publication Critical patent/MX2009006767A/es

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers, loudspeakers or microphones
    • H04R3/005—Circuits for transducers, loudspeakers or microphones for combining the signals of two or more microphones
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
    • H04R1/1091—Details not provided for in groups H04R1/1008 - H04R1/1083
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2201/00—Details of transducers, loudspeakers or microphones covered by H04R1/00 but not provided for in any of its subgroups
    • H04R2201/40—Details of arrangements for obtaining desired directional characteristic by combining a number of identical transducers covered by H04R1/40 but not provided for in any of its subgroups
    • H04R2201/403—Linear arrays of transducers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2410/00—Microphones
    • H04R2410/05—Noise reduction with a separate noise microphone
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2410/00—Microphones
    • H04R2410/07—Mechanical or electrical reduction of wind noise generated by wind passing a microphone
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R25/00—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception
    • H04R25/40—Arrangements for obtaining a desired directivity characteristic
    • H04R25/405—Arrangements for obtaining a desired directivity characteristic by combining a plurality of transducers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R25/00—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception
    • H04R25/40—Arrangements for obtaining a desired directivity characteristic
    • H04R25/407—Circuits for combining signals of a plurality of transducers

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)

Abstract

La detección de campo cercano de señales de onda, por ejemplo, para aplicación en auriculares y audífonos, es conseguida mediante la colocación de dos o más micrófonos separados a lo largo de una línea, de manera general, entre los auriculares y la boca del usuario. Las señales producidas en la salida de los micrófonos disienten en amplitud retraso de tiempo con la señal deseada, es decir, la voz del usuario, sino que disentirán en un modo distinto con los ruidos ambientales. La utilización de esta diferencia permite el reconocimiento, y de manera subsiguiente ignorar la porción de ruido de las señales y pasar una señal limpia de voz. Un primer enfoque involucra una ecuación de diferencia de vector complejo aplicada en el dominio de frecuencia que crea un resultado de ruido reducido. Un segundo enfoque crea un valor de atenuación que es proporcional a la diferencia de vector complejo, y aplica ese valor de atenuación en la señal original con el fin de efectuar una reducción del ruido. Los dos enfoques pueden ser aplicados por separado o combinados. La figura más representativa de la invención es la número 2.
MX2009006767A 2006-12-22 2007-12-19 Mejora de señal de vector de campo cercano. MX2009006767A (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/645,019 US20080152167A1 (en) 2006-12-22 2006-12-22 Near-field vector signal enhancement
PCT/US2007/026151 WO2008079327A1 (en) 2006-12-22 2007-12-19 Near-field vector signal enhancement

Publications (1)

Publication Number Publication Date
MX2009006767A true MX2009006767A (es) 2009-10-08

Family

ID=39542864

Family Applications (1)

Application Number Title Priority Date Filing Date
MX2009006767A MX2009006767A (es) 2006-12-22 2007-12-19 Mejora de señal de vector de campo cercano.

Country Status (11)

Country Link
US (1) US20080152167A1 (es)
EP (1) EP2115565B1 (es)
JP (1) JP2010513987A (es)
KR (1) KR20090113833A (es)
CN (1) CN101595452B (es)
AU (1) AU2007338735B2 (es)
BR (1) BRPI0720774A2 (es)
CA (1) CA2672443A1 (es)
MX (1) MX2009006767A (es)
RU (1) RU2434262C2 (es)
WO (1) WO2008079327A1 (es)

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Also Published As

Publication number Publication date
EP2115565A4 (en) 2011-02-09
EP2115565B1 (en) 2017-08-23
RU2009128226A (ru) 2011-01-27
AU2007338735B2 (en) 2011-04-14
US20080152167A1 (en) 2008-06-26
AU2007338735A1 (en) 2008-07-03
CA2672443A1 (en) 2008-07-03
BRPI0720774A2 (pt) 2017-06-06
CN101595452B (zh) 2013-03-27
EP2115565A1 (en) 2009-11-11
RU2434262C2 (ru) 2011-11-20
WO2008079327A1 (en) 2008-07-03
JP2010513987A (ja) 2010-04-30
KR20090113833A (ko) 2009-11-02
CN101595452A (zh) 2009-12-02

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