FR435001A - Microphone différentiel - Google Patents

Microphone différentiel

Info

Publication number
FR435001A
FR435001A FR435001A FR435001DA FR435001A FR 435001 A FR435001 A FR 435001A FR 435001 A FR435001 A FR 435001A FR 435001D A FR435001D A FR 435001DA FR 435001 A FR435001 A FR 435001A
Authority
FR
France
Prior art keywords
differential microphone
microphone
differential
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
FR435001A
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.)
AUTOMATIC ENUNCIATOR Co
Original Assignee
AUTOMATIC ENUNCIATOR Co
Filing date
Publication date
Application filed by AUTOMATIC ENUNCIATOR Co filed Critical AUTOMATIC ENUNCIATOR Co
Application granted granted Critical
Publication of FR435001A publication Critical patent/FR435001A/fr
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
    • H04R21/00—Variable-resistance transducers
    • H04R21/02—Microphones
    • H04R21/023—Microphones with more than one granular chamber

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
FR435001A 1911-10-07 Microphone différentiel Expired FR435001A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE263724T

Publications (1)

Publication Number Publication Date
FR435001A true FR435001A (fr) 1912-02-20

Family

ID=5985769

Family Applications (1)

Application Number Title Priority Date Filing Date
FR435001A Expired FR435001A (fr) 1911-10-07 Microphone différentiel

Country Status (2)

Country Link
DE (1) DE263724C (fr)
FR (1) FR435001A (fr)

Also Published As

Publication number Publication date
DE263724C (fr)

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