JPS5224013A - Hearing aid - Google Patents

Hearing aid

Info

Publication number
JPS5224013A
JPS5224013A JP50100320A JP10032075A JPS5224013A JP S5224013 A JPS5224013 A JP S5224013A JP 50100320 A JP50100320 A JP 50100320A JP 10032075 A JP10032075 A JP 10032075A JP S5224013 A JPS5224013 A JP S5224013A
Authority
JP
Japan
Prior art keywords
hearing aid
make
switching circuits
improve reliability
mechanical switches
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
JP50100320A
Other languages
Japanese (ja)
Inventor
Hidetoshi Komatsu
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.)
Seiko Epson Corp
Suwa Seikosha KK
Original Assignee
Seiko Epson Corp
Suwa Seikosha KK
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 Seiko Epson Corp, Suwa Seikosha KK filed Critical Seiko Epson Corp
Priority to JP50100320A priority Critical patent/JPS5224013A/en
Publication of JPS5224013A publication Critical patent/JPS5224013A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R25/00—Electric hearing aids
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R2225/00—Details of deaf aids covered by H04R25/00, not provided for in any of its subgroups
    • H04R2225/61—Aspects relating to mechanical or electronic switches or control elements, e.g. functioning

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Neurosurgery (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)

Abstract

PURPOSE:Remove mechanical switches and integrate amplifier and switching circuits to make the unit compact and improve reliability.
JP50100320A 1975-08-19 1975-08-19 Hearing aid Pending JPS5224013A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP50100320A JPS5224013A (en) 1975-08-19 1975-08-19 Hearing aid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50100320A JPS5224013A (en) 1975-08-19 1975-08-19 Hearing aid

Publications (1)

Publication Number Publication Date
JPS5224013A true JPS5224013A (en) 1977-02-23

Family

ID=14270882

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50100320A Pending JPS5224013A (en) 1975-08-19 1975-08-19 Hearing aid

Country Status (1)

Country Link
JP (1) JPS5224013A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0243097U (en) * 1988-09-17 1990-03-26

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0243097U (en) * 1988-09-17 1990-03-26

Similar Documents

Publication Publication Date Title
NL7607410A (en) SIGNAL COMPRESSION SWITCH AND SIGNAL EXPANSION SWITCH.
NL7504130A (en) HIGH VOLTAGE CIRCUIT BREAKER.
AU497007B2 (en) Telephone amplifier circuit
CA968834A (en) Puffer-type compressed-gas circuit interrupter with double-flow action
CA942808A (en) Terminal member for circuit interrupter
AU476375B2 (en) Switching circuit
CA984435A (en) Compact circuit breaker
NL174596B (en) HIGH VOLTAGE VACUUM SWITCH.
JPS52153651A (en) Gain changing circuit
AU1888376A (en) Video switching circuit
CA1034212A (en) Semiconductor switch circuit
AU2013676A (en) Switching circuit
NL7807435A (en) ELECTRIC PRESSURE SWITCH.
CA973914A (en) Circuit interrupter
NL7607262A (en) ELECTRIC COMPRESSION SWITCH.
IT7824194A0 (en) ELECTRIC PRESSURE SWITCH.
JPS525206A (en) Muting circuit used in electronic apparatus
JPS5233049A (en) Multistage closed switchboard
JPS5210042A (en) Level transforming circuit
JPS5239142A (en) Electrical device of fully equipped shipment type
JPS5217752A (en) One end earthing type btl amplifier circuit
JPS5210004A (en) Switching circuit by voice signal
JPS51142649A (en) Enclosed switchboard
JPS52115327A (en) Insulating electric source circuit
PL191795A1 (en) DIGITALLY CONTROLLED ELECTRONIC SWITCH, DESIGNED IN PARTICULAR TO SWITCHING THE AUDIO PATH, USED IN STUDY TECHNOLOGY