FR541204A - Appareil sonore électromagnétique avec deux bobinages excitateurs - Google Patents

Appareil sonore électromagnétique avec deux bobinages excitateurs

Info

Publication number
FR541204A
FR541204A FR541204DA FR541204A FR 541204 A FR541204 A FR 541204A FR 541204D A FR541204D A FR 541204DA FR 541204 A FR541204 A FR 541204A
Authority
FR
France
Prior art keywords
sound device
electromagnetic sound
exciter coils
exciter
coils
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.)
Signal GmbH
Original Assignee
Signal GmbH
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 Signal GmbH filed Critical Signal GmbH
Application granted granted Critical
Publication of FR541204A publication Critical patent/FR541204A/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
    • H04R3/00—Circuits for transducers, loudspeakers or microphones
    • H04R3/04—Circuits for transducers, loudspeakers or microphones for correcting frequency response
    • H04R3/08—Circuits for transducers, loudspeakers or microphones for correcting frequency response of electromagnetic transducers
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S1/00—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith
    • G01S1/72—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith using ultrasonic, sonic or infrasonic waves

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Electromagnetism (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Near-Field Transmission Systems (AREA)
FR541204D 1918-11-18 1920-07-10 Appareil sonore électromagnétique avec deux bobinages excitateurs Expired FR541204A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE541204X 1918-11-18

Publications (1)

Publication Number Publication Date
FR541204A true FR541204A (fr) 1922-07-25

Family

ID=6559194

Family Applications (1)

Application Number Title Priority Date Filing Date
FR541204D Expired FR541204A (fr) 1918-11-18 1920-07-10 Appareil sonore électromagnétique avec deux bobinages excitateurs

Country Status (2)

Country Link
FR (1) FR541204A (fr)
GB (1) GB148979A (fr)

Also Published As

Publication number Publication date
GB148979A (fr) 1921-10-10

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