GB463666A - Hearing aid - Google Patents

Hearing aid

Info

Publication number
GB463666A
GB463666A GB27507/35A GB2750735A GB463666A GB 463666 A GB463666 A GB 463666A GB 27507/35 A GB27507/35 A GB 27507/35A GB 2750735 A GB2750735 A GB 2750735A GB 463666 A GB463666 A GB 463666A
Authority
GB
United Kingdom
Prior art keywords
amplifier
microphone
unit
pole
oct
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.)
Expired
Application number
GB27507/35A
Other languages
English (en)
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.)
Sonotone Corp
Original Assignee
Sonotone 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 Sonotone Corp filed Critical Sonotone Corp
Publication of GB463666A publication Critical patent/GB463666A/en
Expired 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
    • H04R3/00—Circuits for transducers, loudspeakers or microphones
    • H04R3/04—Circuits for transducers, loudspeakers or microphones for correcting frequency response
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R23/00—Transducers other than those covered by groups H04R9/00 - H04R21/00
    • H04R23/02—Transducers using more than one principle simultaneously

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
GB27507/35A 1934-10-04 1935-10-04 Hearing aid Expired GB463666A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US463666XA 1934-10-04 1934-10-04

Publications (1)

Publication Number Publication Date
GB463666A true GB463666A (en) 1937-04-05

Family

ID=21943068

Family Applications (1)

Application Number Title Priority Date Filing Date
GB27507/35A Expired GB463666A (en) 1934-10-04 1935-10-04 Hearing aid

Country Status (3)

Country Link
FR (1) FR795937A (fr)
GB (1) GB463666A (fr)
NL (1) NL43727C (fr)

Also Published As

Publication number Publication date
FR795937A (fr) 1936-03-25
NL43727C (fr)

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