NO761392L - - Google Patents

Info

Publication number
NO761392L
NO761392L NO761392A NO761392A NO761392L NO 761392 L NO761392 L NO 761392L NO 761392 A NO761392 A NO 761392A NO 761392 A NO761392 A NO 761392A NO 761392 L NO761392 L NO 761392L
Authority
NO
Norway
Prior art keywords
frequency
inverter
output
generator
square voltage
Prior art date
Application number
NO761392A
Other languages
English (en)
Norwegian (no)
Inventor
B Zabel
Original Assignee
Wandel & Goltermann
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 Wandel & Goltermann filed Critical Wandel & Goltermann
Publication of NO761392L publication Critical patent/NO761392L/no

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
    • B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
    • B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
    • B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
    • B06B1/0207—Driving circuits
    • B06B1/0223—Driving circuits for generating signals continuous in time
    • B06B1/0269—Driving circuits for generating signals continuous in time for generating multiple frequencies
    • B06B1/0284—Driving circuits for generating signals continuous in time for generating multiple frequencies with consecutive, i.e. sequential generation, e.g. with frequency sweep
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B3/00—Audible signalling systems; Audible personal calling systems
    • G08B3/10—Audible signalling systems; Audible personal calling systems using electric transmission; using electromagnetic transmission
    • 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
    • G10K15/00—Acoustics not otherwise provided for
    • G10K15/02—Synthesis of acoustic waves

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • General Health & Medical Sciences (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Mechanical Engineering (AREA)
  • Alarm Systems (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
NO761392A 1975-04-26 1976-04-23 NO761392L (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2518708A DE2518708B1 (de) 1975-04-26 1975-04-26 Mobile elektroakustische Alarmsignalanlage,sogenanntes elektronisches Polizeihorn

Publications (1)

Publication Number Publication Date
NO761392L true NO761392L (fr) 1976-10-27

Family

ID=5945114

Family Applications (1)

Application Number Title Priority Date Filing Date
NO761392A NO761392L (fr) 1975-04-26 1976-04-23

Country Status (5)

Country Link
BE (1) BE841114A (fr)
DE (1) DE2518708B1 (fr)
FR (1) FR2309006A1 (fr)
NL (1) NL7604329A (fr)
NO (1) NO761392L (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2829404C2 (de) * 1978-07-05 1986-11-13 Becker Autoradiowerk Gmbh, 7516 Karlsbad Elektronische Schaltungsanordnung zur Erzeugung einer periodischen Signaltonfolge aus mindestens zwei Frequenzen
DE2847208C2 (de) * 1978-10-30 1983-11-24 Siegas Metallwarenfabrik Wilhelm Loh Gmbh & Co Kg, 5900 Siegen Ansteuerschaltung für ein schwingungsfähiges elektromechanisches System
DE2936981C2 (de) * 1979-09-13 1985-08-22 Wandel & Goltermann Gmbh & Co, 7412 Eningen Warnsignalgenerator mit einem hohen Anteil an Oberwellen zur Speisung eines Druckkammerlautsprechers
DE3420988A1 (de) * 1984-06-06 1985-12-12 Robert Bosch Gmbh, 7000 Stuttgart Elektronische warnsignalanlage, insbesondere fuer kraftfahrzeuge
FR2631505B1 (fr) * 1988-05-11 1990-08-31 Neiman Sa Dispositif d'alimentation d'un haut-parleur de signalisation acoustique

Also Published As

Publication number Publication date
FR2309006B3 (fr) 1979-01-19
NL7604329A (nl) 1976-10-28
DE2518708B1 (de) 1976-02-26
BE841114A (fr) 1976-08-16
FR2309006A1 (fr) 1976-11-19

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