FR1136043A - Perfectionnements aux transducteurs électromécaniques - Google Patents

Perfectionnements aux transducteurs électromécaniques

Info

Publication number
FR1136043A
FR1136043A FR1136043DA FR1136043A FR 1136043 A FR1136043 A FR 1136043A FR 1136043D A FR1136043D A FR 1136043DA FR 1136043 A FR1136043 A FR 1136043A
Authority
FR
France
Prior art keywords
electromechanical transducers
transducers
electromechanical
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
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.)
Cosmocord Ltd
Original Assignee
Cosmocord Ltd
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 Cosmocord Ltd filed Critical Cosmocord Ltd
Application granted granted Critical
Publication of FR1136043A publication Critical patent/FR1136043A/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
    • H04R17/00—Piezoelectric transducers; Electrostrictive transducers
    • H04R17/04—Gramophone pick-ups using a stylus; Recorders using a stylus
    • H04R17/06—Gramophone pick-ups using a stylus; Recorders using a stylus comprising two or more styli or transducers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R17/00—Piezoelectric transducers; Electrostrictive transducers
    • H04R17/04—Gramophone pick-ups using a stylus; Recorders using a stylus

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
FR1136043D 1954-09-20 1955-09-20 Perfectionnements aux transducteurs électromécaniques Expired FR1136043A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2918538X 1954-09-20

Publications (1)

Publication Number Publication Date
FR1136043A true FR1136043A (fr) 1957-05-07

Family

ID=10917761

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1136043D Expired FR1136043A (fr) 1954-09-20 1955-09-20 Perfectionnements aux transducteurs électromécaniques

Country Status (2)

Country Link
US (1) US2918538A (fr)
FR (1) FR1136043A (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7476984B2 (en) * 2006-05-26 2009-01-13 Hyun Bong Kim Spring activated energy transducer generating A/C electricity from reciprocating natural forces

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1977433A (en) * 1933-04-22 1934-10-16 Edison Inc Thomas A Electromechanical translating device
US2160793A (en) * 1938-01-21 1939-05-30 Webster Electric Co Inc Pickup
US2326280A (en) * 1941-05-21 1943-08-10 S N Shure And Frances Shure Translating device
US2670407A (en) * 1949-02-17 1954-02-23 Magnavox Co Drive system for crystal pickups
US2668196A (en) * 1949-04-30 1954-02-02 Shure Bros Phonograph apparatus
NL77992C (fr) * 1950-03-02
US2717929A (en) * 1952-04-10 1955-09-13 Sonotone Corp Phonograph pickups

Also Published As

Publication number Publication date
US2918538A (en) 1959-12-22

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