FR681340A - Haut-parleur utilisant des systèmes d'entraînement divers - Google Patents

Haut-parleur utilisant des systèmes d'entraînement divers

Info

Publication number
FR681340A
FR681340A FR681340DA FR681340A FR 681340 A FR681340 A FR 681340A FR 681340D A FR681340D A FR 681340DA FR 681340 A FR681340 A FR 681340A
Authority
FR
France
Prior art keywords
loudspeaker
drive systems
various drive
various
systems
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)
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.)
Siemens and Halske AG
Siemens Corp
Original Assignee
Siemens and Halske AG
Siemens 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 Siemens and Halske AG, Siemens Corp filed Critical Siemens and Halske AG
Application granted granted Critical
Publication of FR681340A publication Critical patent/FR681340A/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; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R23/00—Transducers other than those covered by groups H04R9/00 - H04R21/00
    • H04R23/02—Transducers using more than one principle simultaneously

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
  • Circuit For Audible Band Transducer (AREA)
FR681340D 1928-09-07 1929-09-05 Haut-parleur utilisant des systèmes d'entraînement divers Expired FR681340A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES87388D DE524082C (de) 1928-09-07 1928-09-07 Lautsprecher mit mehreren nach verschiedenartigen Prinzipien arbeitenden elektrischen Antriebssystemen

Publications (1)

Publication Number Publication Date
FR681340A true FR681340A (fr) 1930-05-13

Family

ID=7747791

Family Applications (1)

Application Number Title Priority Date Filing Date
FR681340D Expired FR681340A (fr) 1928-09-07 1929-09-05 Haut-parleur utilisant des systèmes d'entraînement divers

Country Status (3)

Country Link
US (1) US1889748A (de)
DE (1) DE524082C (de)
FR (1) FR681340A (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2453521A (en) * 1942-05-30 1948-11-09 Rca Corp Superimposed duplex loud-speaker
US2519810A (en) * 1947-12-05 1950-08-22 Jose W Acosta Electrostatic sound reproducer
US2615994A (en) * 1948-12-14 1952-10-28 Lindenberg Theodore Diaphragm for electrostatic loud-speakers
US3073899A (en) * 1957-03-29 1963-01-15 Philo T Farnsworth Transducing apparatus
JPS5221364B2 (de) * 1971-11-04 1977-06-10

Also Published As

Publication number Publication date
US1889748A (en) 1932-12-06
DE524082C (de) 1931-05-01

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