JPS5468102A - Sound reinforcement system - Google Patents

Sound reinforcement system

Info

Publication number
JPS5468102A
JPS5468102A JP13533177A JP13533177A JPS5468102A JP S5468102 A JPS5468102 A JP S5468102A JP 13533177 A JP13533177 A JP 13533177A JP 13533177 A JP13533177 A JP 13533177A JP S5468102 A JPS5468102 A JP S5468102A
Authority
JP
Japan
Prior art keywords
speaker
control signal
transmitter
microphone
reinforcement system
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
JP13533177A
Other languages
Japanese (ja)
Other versions
JPS6022557B2 (en
Inventor
Junkichi Sugita
Yuzo Fuse
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.)
Sony Corp
Original Assignee
Sony 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 Sony Corp filed Critical Sony Corp
Priority to JP13533177A priority Critical patent/JPS6022557B2/en
Publication of JPS5468102A publication Critical patent/JPS5468102A/en
Publication of JPS6022557B2 publication Critical patent/JPS6022557B2/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
    • H04H20/53—Arrangements specially adapted for specific applications, e.g. for traffic information or for mobile receivers
    • H04H20/61—Arrangements specially adapted for specific applications, e.g. for traffic information or for mobile receivers for local area broadcast, e.g. instore broadcast
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
    • H04H20/65—Arrangements characterised by transmission systems for broadcast
    • H04H20/76—Wired systems
    • H04H20/82—Wired systems using signals not modulated onto a carrier
    • H04H20/83—Wired systems using signals not modulated onto a carrier not sharing the network with any other service
    • 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
    • H04R3/02—Circuits for transducers, loudspeakers or microphones for preventing acoustic reaction, i.e. acoustic oscillatory feedback

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Circuit For Audible Band Transducer (AREA)

Abstract

PURPOSE:To prevent hauling effectively with a simple constitution, by receiving the control signal from the transmitter with a receiver when a microphone closes to a speaker and by reducing the output level of the speaker with the control signal. CONSTITUTION:The microphone 1 is connected to the amplifier 2 and the speaker 6 is connecte to the amplifier 2. Further, the transmitter 12 is placed near the speaker 6 and when the microphone 1 closes to the speaker 6, the control signal from the transmitter 12 is received with the receiver 18 and the output level of the speaker 6 is reduced with the control signal. Thus, hauling can effectively be prevented with a simple constitution.
JP13533177A 1977-11-11 1977-11-11 public address system Expired JPS6022557B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13533177A JPS6022557B2 (en) 1977-11-11 1977-11-11 public address system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13533177A JPS6022557B2 (en) 1977-11-11 1977-11-11 public address system

Publications (2)

Publication Number Publication Date
JPS5468102A true JPS5468102A (en) 1979-06-01
JPS6022557B2 JPS6022557B2 (en) 1985-06-03

Family

ID=15149258

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13533177A Expired JPS6022557B2 (en) 1977-11-11 1977-11-11 public address system

Country Status (1)

Country Link
JP (1) JPS6022557B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58125948A (en) * 1982-01-21 1983-07-27 Nec Corp Conference telephone system
DE3413181A1 (en) 1983-12-14 1985-06-27 Deutsche Post Rundfunk- und Fernsehtechnisches Zentralamt, DDR 1199 Berlin LARGE SPACE SOUND SYSTEM
US5696814A (en) * 1994-09-09 1997-12-09 Compaq Computer Corporation Audio system for a personal computer

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58125948A (en) * 1982-01-21 1983-07-27 Nec Corp Conference telephone system
DE3413181A1 (en) 1983-12-14 1985-06-27 Deutsche Post Rundfunk- und Fernsehtechnisches Zentralamt, DDR 1199 Berlin LARGE SPACE SOUND SYSTEM
US5696814A (en) * 1994-09-09 1997-12-09 Compaq Computer Corporation Audio system for a personal computer

Also Published As

Publication number Publication date
JPS6022557B2 (en) 1985-06-03

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