SG42399A1 - Microphone selection process for use in a multiple microphone voice actuated switching system - Google Patents

Microphone selection process for use in a multiple microphone voice actuated switching system

Info

Publication number
SG42399A1
SG42399A1 SG1996009734A SG1996009734A SG42399A1 SG 42399 A1 SG42399 A1 SG 42399A1 SG 1996009734 A SG1996009734 A SG 1996009734A SG 1996009734 A SG1996009734 A SG 1996009734A SG 42399 A1 SG42399 A1 SG 42399A1
Authority
SG
Singapore
Prior art keywords
microphone
selection process
switching system
actuated switching
voice actuated
Prior art date
Application number
SG1996009734A
Other languages
English (en)
Inventor
Donald John Bowen
Gregory Ciurpita Jr
Original Assignee
At & T Corp
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
Application filed by At & T Corp filed Critical At & T Corp
Publication of SG42399A1 publication Critical patent/SG42399A1/en

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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M9/00—Arrangements for interconnection not involving centralised switching
    • H04M9/08—Two-way loud-speaking telephone systems with means for conditioning the signal, e.g. for suppressing echoes for one or both directions of traffic
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M9/00—Arrangements for interconnection not involving centralised switching
    • H04M9/08—Two-way loud-speaking telephone systems with means for conditioning the signal, e.g. for suppressing echoes for one or both directions of traffic
    • H04M9/10—Two-way loud-speaking telephone systems with means for conditioning the signal, e.g. for suppressing echoes for one or both directions of traffic with switching of direction of transmission by voice frequency
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R27/00—Public address systems
    • 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
    • H04R2201/401—2D or 3D 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Telephonic Communication Services (AREA)
SG1996009734A 1995-05-08 1996-05-06 Microphone selection process for use in a multiple microphone voice actuated switching system SG42399A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/436,671 US5625697A (en) 1995-05-08 1995-05-08 Microphone selection process for use in a multiple microphone voice actuated switching system

Publications (1)

Publication Number Publication Date
SG42399A1 true SG42399A1 (en) 1997-08-15

Family

ID=23733355

Family Applications (1)

Application Number Title Priority Date Filing Date
SG1996009734A SG42399A1 (en) 1995-05-08 1996-05-06 Microphone selection process for use in a multiple microphone voice actuated switching system

Country Status (9)

Country Link
US (1) US5625697A (zh)
EP (1) EP0742679B1 (zh)
JP (1) JP3025194B2 (zh)
KR (1) KR100405099B1 (zh)
AU (1) AU702907B2 (zh)
CA (1) CA2174271C (zh)
DE (1) DE69637203T2 (zh)
SG (1) SG42399A1 (zh)
TW (1) TW311324B (zh)

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Also Published As

Publication number Publication date
AU702907B2 (en) 1999-03-11
KR960043968A (ko) 1996-12-23
EP0742679B1 (en) 2007-08-15
TW311324B (zh) 1997-07-21
EP0742679A3 (en) 2006-02-08
DE69637203D1 (de) 2007-09-27
JP3025194B2 (ja) 2000-03-27
CA2174271C (en) 1999-08-03
JPH08317491A (ja) 1996-11-29
US5625697A (en) 1997-04-29
KR100405099B1 (ko) 2004-02-25
MX9601658A (es) 1997-07-31
AU5205796A (en) 1996-11-21
DE69637203T2 (de) 2008-05-08
CA2174271A1 (en) 1996-11-09
EP0742679A2 (en) 1996-11-13

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