JPS5416850B2 - - Google Patents

Info

Publication number
JPS5416850B2
JPS5416850B2 JP11417475A JP11417475A JPS5416850B2 JP S5416850 B2 JPS5416850 B2 JP S5416850B2 JP 11417475 A JP11417475 A JP 11417475A JP 11417475 A JP11417475 A JP 11417475A JP S5416850 B2 JPS5416850 B2 JP S5416850B2
Authority
JP
Japan
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.)
Expired
Application number
JP11417475A
Other languages
Japanese (ja)
Other versions
JPS5237421A (en
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 filed Critical
Priority to JP50114174A priority Critical patent/JPS5237421A/en
Publication of JPS5237421A publication Critical patent/JPS5237421A/en
Publication of JPS5416850B2 publication Critical patent/JPS5416850B2/ja
Granted 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
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/46—Special adaptations for use as contact microphones, e.g. on musical instrument, on stethoscope

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Telephone Set Structure (AREA)
  • Headphones And Earphones (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)
  • Transceivers (AREA)
JP50114174A 1975-09-19 1975-09-19 Earplug type transmitter-receiver Granted JPS5237421A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP50114174A JPS5237421A (en) 1975-09-19 1975-09-19 Earplug type transmitter-receiver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50114174A JPS5237421A (en) 1975-09-19 1975-09-19 Earplug type transmitter-receiver

Publications (2)

Publication Number Publication Date
JPS5237421A JPS5237421A (en) 1977-03-23
JPS5416850B2 true JPS5416850B2 (en) 1979-06-26

Family

ID=14631021

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50114174A Granted JPS5237421A (en) 1975-09-19 1975-09-19 Earplug type transmitter-receiver

Country Status (1)

Country Link
JP (1) JPS5237421A (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53754A (en) * 1977-05-02 1978-01-06 Gouda Shishiyuu Kougiyoushiyo Special embroidering machine
JPS56122245A (en) * 1980-02-29 1981-09-25 Pilot Pen Co Ltd:The Automatic control system for transmission or recording and transmission and reception
US4520236A (en) * 1983-11-30 1985-05-28 Nu-Bar Electronics Sound transfer from a hearing aid to the human ear drum
JPS62196443U (en) * 1986-06-03 1987-12-14
JPS63120546A (en) * 1986-11-10 1988-05-24 Temuko Japan:Kk Wireless telephone set
JPS63120547A (en) * 1986-11-10 1988-05-24 Temuko Japan:Kk Telephone set
JPH01321969A (en) * 1988-06-17 1989-12-27 Takamura Seni Kk Embroidery device for sewing ultrathick yarn and embroidery yarn-guiding tool using the same device
JPH09172479A (en) * 1995-12-20 1997-06-30 Yokoi Kikaku:Kk Transmitter-receiver and speaker using it
US6175633B1 (en) 1997-04-09 2001-01-16 Cavcom, Inc. Radio communications apparatus with attenuating ear pieces for high noise environments
JP5691012B1 (en) * 2014-05-15 2015-04-01 角元　純一 Earphone attachment for environmental noise insulation

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3819860A (en) * 1971-09-10 1974-06-25 R Miller Audio transceiver for transmitting to and receiving from the ear canal
JPS4975132A (en) * 1972-11-21 1974-07-19

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3819860A (en) * 1971-09-10 1974-06-25 R Miller Audio transceiver for transmitting to and receiving from the ear canal
JPS4975132A (en) * 1972-11-21 1974-07-19

Also Published As

Publication number Publication date
JPS5237421A (en) 1977-03-23

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