FR602617A - Improvements to devices intended to transform electrical energy into sound and vice versa - Google Patents

Improvements to devices intended to transform electrical energy into sound and vice versa

Info

Publication number
FR602617A
FR602617A FR602617DA FR602617A FR 602617 A FR602617 A FR 602617A FR 602617D A FR602617D A FR 602617DA FR 602617 A FR602617 A FR 602617A
Authority
FR
France
Prior art keywords
sound
electrical energy
vice versa
devices intended
transform electrical
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)
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.)
Compagnie Francaise Thomson Houston SA
Original Assignee
Compagnie Francaise Thomson Houston SA
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 Compagnie Francaise Thomson Houston SA filed Critical Compagnie Francaise Thomson Houston SA
Application granted granted Critical
Publication of FR602617A publication Critical patent/FR602617A/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
    • H04R11/00—Transducers of moving-armature or moving-core type

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
FR602617D 1924-08-20 1925-08-19 Improvements to devices intended to transform electrical energy into sound and vice versa Expired FR602617A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1975424A GB243063A (en) 1924-08-20 1924-08-20 Electromagnetic instruments for converting oscillating currents into sound, and vice versa

Publications (1)

Publication Number Publication Date
FR602617A true FR602617A (en) 1926-03-23

Family

ID=10134640

Family Applications (1)

Application Number Title Priority Date Filing Date
FR602617D Expired FR602617A (en) 1924-08-20 1925-08-19 Improvements to devices intended to transform electrical energy into sound and vice versa

Country Status (2)

Country Link
FR (1) FR602617A (en)
GB (1) GB243063A (en)

Also Published As

Publication number Publication date
GB243063A (en) 1925-11-20

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