FR1428219A - Improvements to electro-acoustic transducers - Google Patents

Improvements to electro-acoustic transducers

Info

Publication number
FR1428219A
FR1428219A FR7188A FR7188A FR1428219A FR 1428219 A FR1428219 A FR 1428219A FR 7188 A FR7188 A FR 7188A FR 7188 A FR7188 A FR 7188A FR 1428219 A FR1428219 A FR 1428219A
Authority
FR
France
Prior art keywords
electro
acoustic transducers
transducers
acoustic
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
FR7188A
Other languages
French (fr)
Inventor
James Samuel Paterson Roberton
Leslie Eugene Basil D Bradshaw
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.)
International Standard Electric Corp
Original Assignee
International Standard Electric 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 International Standard Electric Corp filed Critical International Standard Electric Corp
Application granted granted Critical
Publication of FR1428219A publication Critical patent/FR1428219A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K9/00—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers
    • G10K9/12—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers electrically operated
    • G10K9/13—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers electrically operated using electromagnetic driving means
    • 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)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
  • Jigging Conveyors (AREA)
  • Reciprocating Pumps (AREA)
FR7188A 1964-02-28 1965-02-26 Improvements to electro-acoustic transducers Expired FR1428219A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB837564A GB1042284A (en) 1964-02-28 1964-02-28 Improvements in or relating to electromechanical vibratory devices

Publications (1)

Publication Number Publication Date
FR1428219A true FR1428219A (en) 1966-02-11

Family

ID=9851334

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7188A Expired FR1428219A (en) 1964-02-28 1965-02-26 Improvements to electro-acoustic transducers

Country Status (4)

Country Link
CH (1) CH439823A (en)
ES (1) ES309899A1 (en)
FR (1) FR1428219A (en)
GB (1) GB1042284A (en)

Also Published As

Publication number Publication date
ES309899A1 (en) 1965-06-01
CH439823A (en) 1967-07-15
GB1042284A (en) 1966-09-14

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