EP0191492A3 - Computer-controlled electro-acoustic device - Google Patents

Computer-controlled electro-acoustic device Download PDF

Info

Publication number
EP0191492A3
EP0191492A3 EP86101833A EP86101833A EP0191492A3 EP 0191492 A3 EP0191492 A3 EP 0191492A3 EP 86101833 A EP86101833 A EP 86101833A EP 86101833 A EP86101833 A EP 86101833A EP 0191492 A3 EP0191492 A3 EP 0191492A3
Authority
EP
European Patent Office
Prior art keywords
microphone
cable
signals
computer
central station
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
EP86101833A
Other languages
German (de)
Other versions
EP0191492A2 (en
EP0191492B1 (en
Inventor
Helmut Brahler
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to AT86101833T priority Critical patent/ATE52373T1/en
Publication of EP0191492A2 publication Critical patent/EP0191492A2/en
Publication of EP0191492A3 publication Critical patent/EP0191492A3/en
Application granted granted Critical
Publication of EP0191492B1 publication Critical patent/EP0191492B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • H04R27/00—Public address systems

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Selective Calling Equipment (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)

Abstract

1. Computer-controlled electro-acoustic conference equipment for enclosed spaces comprising a central station (1) and a greater number varying as required of microphones (2), allocated to the conference participants and comprising a microphone capsule (22) within a case (21), which are all connected to the central station (1) via a single common cable (3), the central station (1) incorporating an amplifier arrangement (11) for the microphone signals and a computer (12) operating in accordance with a program which is supplied via the cable (3) with informative signals coded by the individual microphones (2) and emits coded control signals to the cable (3) to control the operating condition of the individual microphones (2), each microphone (2) having allocated to it a preamplifier (23) for the microphone signals, at least one switching key (24) operable by the conference participant and an electronic control apparatus (25) connected to the switching key (24), which as a function of the switching key operation generates the informative signals for the computer (12) and evaluates the control signals received thereat for the switching on and off of the microphone, characterized in that the single cable (3) is fixedly laid in the room and electrically interconnects a specific number of microphone plug sockets (4) corresponding to maximum requirements, which are fixedly installed in the room or on its furniture (5) at the places of the conference participants, that in the case of each microphone (2), the associated preamplifier (23) and the associated electronic control apparatus (25) as well as all the associated switching keys (24) are integrated common in a housing (21) with the microphone, and that each microphone (2) has a plug (28) fitting the microphone plug sockets (4) for direct electrical connection to the cable (3).
EP86101833A 1985-02-15 1986-02-13 Computer-controlled electro-acoustic device Expired - Lifetime EP0191492B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86101833T ATE52373T1 (en) 1985-02-15 1986-02-13 COMPUTER-CONTROLLED ELECTRO-ACOUSTIC DISCUSSION EQUIPMENT.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3505348 1985-02-15
DE19853505348 DE3505348A1 (en) 1985-02-15 1985-02-15 COMPUTER-CONTROLLED ELECTRO-ACOUSTIC DISCUSSION SYSTEM

Publications (3)

Publication Number Publication Date
EP0191492A2 EP0191492A2 (en) 1986-08-20
EP0191492A3 true EP0191492A3 (en) 1987-12-16
EP0191492B1 EP0191492B1 (en) 1990-04-25

Family

ID=6262684

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86101833A Expired - Lifetime EP0191492B1 (en) 1985-02-15 1986-02-13 Computer-controlled electro-acoustic device

Country Status (3)

Country Link
EP (1) EP0191492B1 (en)
AT (1) ATE52373T1 (en)
DE (2) DE3505348A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5404397A (en) * 1992-04-16 1995-04-04 U.S. Phillips Corporation Conference system with automatic speaker detection and speaker unit
DE102004033866B4 (en) * 2004-07-13 2006-11-16 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Conference terminal with echo reduction for a voice conference system

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3626097A (en) * 1969-09-26 1971-12-07 Audio Designs & Mfg Accessing controller for multiple-input plural output signal control console device
FR2227705A1 (en) * 1973-04-30 1974-11-22 Siemens Ag
DE2523864A1 (en) * 1975-05-30 1976-12-16 Heinrich Peiker Electroacoustical communication system for conference etc. - positions provided with microphone and loudspeaker units for simplex or duplex operation
US4281314A (en) * 1978-06-05 1981-07-28 Morris S. Wagner Selection switching apparatus
GB2123193A (en) * 1982-06-19 1984-01-25 James Ernest Gleave Public address system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3626097A (en) * 1969-09-26 1971-12-07 Audio Designs & Mfg Accessing controller for multiple-input plural output signal control console device
FR2227705A1 (en) * 1973-04-30 1974-11-22 Siemens Ag
DE2523864A1 (en) * 1975-05-30 1976-12-16 Heinrich Peiker Electroacoustical communication system for conference etc. - positions provided with microphone and loudspeaker units for simplex or duplex operation
US4281314A (en) * 1978-06-05 1981-07-28 Morris S. Wagner Selection switching apparatus
GB2123193A (en) * 1982-06-19 1984-01-25 James Ernest Gleave Public address system

Also Published As

Publication number Publication date
EP0191492A2 (en) 1986-08-20
DE3670747D1 (en) 1990-05-31
DE3505348A1 (en) 1986-08-21
ATE52373T1 (en) 1990-05-15
EP0191492B1 (en) 1990-04-25

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