NL7604329A - Mobiele elektro-akoestische alarmsignaalinstal- latie, of een zogenaamde elektronische politie- sirene. - Google Patents

Mobiele elektro-akoestische alarmsignaalinstal- latie, of een zogenaamde elektronische politie- sirene.

Info

Publication number
NL7604329A
NL7604329A NL7604329A NL7604329A NL7604329A NL 7604329 A NL7604329 A NL 7604329A NL 7604329 A NL7604329 A NL 7604329A NL 7604329 A NL7604329 A NL 7604329A NL 7604329 A NL7604329 A NL 7604329A
Authority
NL
Netherlands
Prior art keywords
alarm signal
signal system
called electronic
acoustic alarm
electronic police
Prior art date
Application number
NL7604329A
Other languages
English (en)
Dutch (nl)
Original Assignee
Wandel U Goltermann Kommanditg
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 U Goltermann Kommanditg filed Critical Wandel U Goltermann Kommanditg
Publication of NL7604329A publication Critical patent/NL7604329A/xx

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
NL7604329A 1975-04-26 1976-04-23 Mobiele elektro-akoestische alarmsignaalinstal- latie, of een zogenaamde elektronische politie- sirene. NL7604329A (nl)

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
NL7604329A true NL7604329A (nl) 1976-10-28

Family

ID=5945114

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7604329A NL7604329A (nl) 1975-04-26 1976-04-23 Mobiele elektro-akoestische alarmsignaalinstal- latie, of een zogenaamde elektronische politie- sirene.

Country Status (5)

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

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 (xx) 1979-01-19
DE2518708B1 (de) 1976-02-26
BE841114A (fr) 1976-08-16
FR2309006A1 (fr) 1976-11-19
NO761392L (xx) 1976-10-27

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