JPS57202139A - Concert system - Google Patents

Concert system

Info

Publication number
JPS57202139A
JPS57202139A JP56087061A JP8706181A JPS57202139A JP S57202139 A JPS57202139 A JP S57202139A JP 56087061 A JP56087061 A JP 56087061A JP 8706181 A JP8706181 A JP 8706181A JP S57202139 A JPS57202139 A JP S57202139A
Authority
JP
Japan
Prior art keywords
hall
concert
playing
listners
microphones
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.)
Pending
Application number
JP56087061A
Other languages
Japanese (ja)
Inventor
Mikio Iguchi
Osamu Ueno
Totaro Ogura
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.)
Japan Broadcasting Corp
Original Assignee
Nippon Hoso Kyokai NHK
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 Nippon Hoso Kyokai NHK filed Critical Nippon Hoso Kyokai NHK
Priority to JP56087061A priority Critical patent/JPS57202139A/en
Publication of JPS57202139A publication Critical patent/JPS57202139A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Radio Transmission System (AREA)

Abstract

PURPOSE:To give a concert without the provision of an amplifier of a large output in a concert hall, by providing a small transmission station which does not conflict with the law of electromagnetic wave in the concert hall, where listners listen to playing with their own receives. CONSTITUTION:Microphones 3, 4 and 6 are provided on a stage 2 of a concert hall 1, a playing sound signal is converted into an electric signal by these microphones, which is mixed in a mixer 7 and applied to a transmitter 11. The transmitter 11 transmits a transmission output which does not conflit with the law of electromagnetic waves, e.g., <=15muV at 100m distance, in the hall 1 via an antenna 10. On the other hand, listners prepare their own receivers (e.g., FM stereo receiver) 13 and receive the said weak electromagnetic waves and listen to playing with a head phone 13a. Thus, the hall does not require the provision of amplifiers with a large output and the interference of sounds in the hall can be avoided.
JP56087061A 1981-06-06 1981-06-06 Concert system Pending JPS57202139A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56087061A JPS57202139A (en) 1981-06-06 1981-06-06 Concert system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56087061A JPS57202139A (en) 1981-06-06 1981-06-06 Concert system

Publications (1)

Publication Number Publication Date
JPS57202139A true JPS57202139A (en) 1982-12-10

Family

ID=13904416

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56087061A Pending JPS57202139A (en) 1981-06-06 1981-06-06 Concert system

Country Status (1)

Country Link
JP (1) JPS57202139A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GR1003572B (en) * 2000-06-26 2001-05-14 Ηλια Ιακωβος Λιανος Method of use of personal cordless earphones with a central transmitter for sound emission in spaces where sound diffusion is not desirable

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5219002A (en) * 1975-08-06 1977-01-14 Takeshi Tokoro Broadcasting method
JPS53123612A (en) * 1977-04-05 1978-10-28 Fujitsu Ltd Transmission output control system
JPS5512577A (en) * 1978-07-12 1980-01-29 Matsushita Electric Ind Co Ltd Fm wireless record player

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5219002A (en) * 1975-08-06 1977-01-14 Takeshi Tokoro Broadcasting method
JPS53123612A (en) * 1977-04-05 1978-10-28 Fujitsu Ltd Transmission output control system
JPS5512577A (en) * 1978-07-12 1980-01-29 Matsushita Electric Ind Co Ltd Fm wireless record player

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GR1003572B (en) * 2000-06-26 2001-05-14 Ηλια Ιακωβος Λιανος Method of use of personal cordless earphones with a central transmitter for sound emission in spaces where sound diffusion is not desirable

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