FR605544A - Improvements to sound reproduction systems - Google Patents

Improvements to sound reproduction systems

Info

Publication number
FR605544A
FR605544A FR605544DA FR605544A FR 605544 A FR605544 A FR 605544A FR 605544D A FR605544D A FR 605544DA FR 605544 A FR605544 A FR 605544A
Authority
FR
France
Prior art keywords
sound reproduction
reproduction systems
systems
sound
reproduction
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 FR605544A publication Critical patent/FR605544A/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
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/16—Mounting or tensioning of diaphragms or cones
    • H04R7/18—Mounting or tensioning of diaphragms or cones at the periphery
    • H04R7/20—Securing diaphragm or cone resiliently to support by flexible material, springs, cords, or strands

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
FR605544D 1924-10-21 1925-10-20 Improvements to sound reproduction systems Expired FR605544A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US745015A US1548740A (en) 1924-10-21 1924-10-21 Sound-reproducing device

Publications (1)

Publication Number Publication Date
FR605544A true FR605544A (en) 1926-05-28

Family

ID=24994875

Family Applications (1)

Application Number Title Priority Date Filing Date
FR605544D Expired FR605544A (en) 1924-10-21 1925-10-20 Improvements to sound reproduction systems

Country Status (3)

Country Link
US (1) US1548740A (en)
FR (1) FR605544A (en)
GB (1) GB241869A (en)

Also Published As

Publication number Publication date
US1548740A (en) 1925-08-04
GB241869A (en) 1926-04-22

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