FR359148A - Diaphragm box for talking machines - Google Patents

Diaphragm box for talking machines

Info

Publication number
FR359148A
FR359148A FR359148DA FR359148A FR 359148 A FR359148 A FR 359148A FR 359148D A FR359148D A FR 359148DA FR 359148 A FR359148 A FR 359148A
Authority
FR
France
Prior art keywords
diaphragm box
talking machines
talking
machines
diaphragm
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
Other languages
French (fr)
Inventor
Edwin Henry Mobley
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of FR359148A publication Critical patent/FR359148A/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
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/32—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
    • H04R1/34—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means
    • H04R1/38—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means in which sound waves act upon both sides of a diaphragm and incorporating acoustic phase-shifting means, e.g. pressure-gradient microphone

Landscapes

  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
FR359148D 1905-10-07 1905-10-07 Diaphragm box for talking machines Expired FR359148A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR359148T 1905-10-07

Publications (1)

Publication Number Publication Date
FR359148A true FR359148A (en) 1906-03-16

Family

ID=1406935

Family Applications (1)

Application Number Title Priority Date Filing Date
FR359148D Expired FR359148A (en) 1905-10-07 1905-10-07 Diaphragm box for talking machines

Country Status (1)

Country Link
FR (1) FR359148A (en)

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