FR2309006A1 - Installation electronique mobile, fournissant un signal d'alarme electro-acoustique du type sirene de police - Google Patents

Installation electronique mobile, fournissant un signal d'alarme electro-acoustique du type sirene de police

Info

Publication number
FR2309006A1
FR2309006A1 FR7612840A FR7612840A FR2309006A1 FR 2309006 A1 FR2309006 A1 FR 2309006A1 FR 7612840 A FR7612840 A FR 7612840A FR 7612840 A FR7612840 A FR 7612840A FR 2309006 A1 FR2309006 A1 FR 2309006A1
Authority
FR
France
Prior art keywords
loudspeaker
alarm signal
public address
signal generator
amplifier
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.)
Granted
Application number
FR7612840A
Other languages
English (en)
Other versions
FR2309006B3 (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.)
Wandel and Golterman GmbH and Co
Original Assignee
Wandel and Golterman GmbH and Co
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 and Golterman GmbH and Co filed Critical Wandel and Golterman GmbH and Co
Publication of FR2309006A1 publication Critical patent/FR2309006A1/fr
Application granted granted Critical
Publication of FR2309006B3 publication Critical patent/FR2309006B3/fr
Granted legal-status Critical Current

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
FR7612840A 1975-04-26 1976-04-23 Installation electronique mobile, fournissant un signal d'alarme electro-acoustique du type sirene de police Granted FR2309006A1 (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 (2)

Publication Number Publication Date
FR2309006A1 true FR2309006A1 (fr) 1976-11-19
FR2309006B3 FR2309006B3 (fr) 1979-01-19

Family

ID=5945114

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7612840A Granted FR2309006A1 (fr) 1975-04-26 1976-04-23 Installation electronique mobile, fournissant un signal d'alarme electro-acoustique du type sirene de police

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)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2440658A1 (fr) * 1978-10-30 1980-05-30 Rabe Erich Circuit de commande pour un systeme oscillant electrique ou electromecanique, notamment pour l'actionnement d'un compresseur d'appareil refrigerant
EP0025537A1 (fr) * 1979-09-13 1981-03-25 Wandel & Goltermann GmbH & Co Générateur de signal d'avertissement pour l'alimentation d'un haut-parleur à chambre de compression

Families Citing this family (3)

* 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
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

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2440658A1 (fr) * 1978-10-30 1980-05-30 Rabe Erich Circuit de commande pour un systeme oscillant electrique ou electromecanique, notamment pour l'actionnement d'un compresseur d'appareil refrigerant
EP0025537A1 (fr) * 1979-09-13 1981-03-25 Wandel & Goltermann GmbH & Co Générateur de signal d'avertissement pour l'alimentation d'un haut-parleur à chambre de compression

Also Published As

Publication number Publication date
BE841114A (fr) 1976-08-16
NO761392L (fr) 1976-10-27
DE2518708B1 (de) 1976-02-26
NL7604329A (nl) 1976-10-28
FR2309006B3 (fr) 1979-01-19

Similar Documents

Publication Publication Date Title
AU7345591A (en) Tinnitus masking device
KR830004824A (ko) 특수뇌파 방식의 유도장치
MXPA96000266A (es) Dispositivo generador de sonido.
GB1510691A (en) Electronic singing suppressor device
GB1522850A (en) Device for modulating a musical tone signal to produce a rotating sound effect
FR2309006A1 (fr) Installation electronique mobile, fournissant un signal d'alarme electro-acoustique du type sirene de police
GB1406377A (en) Electronic musical instrument
ES465856A1 (es) Perfeccionamientos en redes telefonicas electronicas.
KR850002715A (ko) 전자회로를 사용한 계기용 신호 발생기
SU1223285A1 (ru) Устройство дл сжати частотного диапазона звуковых сигналов
GB1525974A (en) Electric signal generating means
GB580769A (en) Improvements relating to pulse signalling systems
GB1513200A (en) Apparatus for generating frequency modulated acoustic vibrations under water
GB1524107A (en) Circuit arrangement for an acoustic generator
US3342948A (en) Frequency modulated telephone ringing system
JPS5595500A (en) Acoustic unit utilizing ultrasonic wave
RU9354U1 (ru) Генератор помех
JPS5413321A (en) Multi-way speaker system
SU1465902A1 (ru) Устройство дл преобразовани звуковых колебаний
NO20020315L (no) Behandling av elektrisk signal for elektroakustisk transduser
KR880005824A (ko) 병렬설치된 변환기내에서 변조신호의 음향 복구를 분류하는 방법 및 그 변환기 세트
JPS5438101A (en) Variable delay device
JPS522308A (en) Tone ringer circuit
JPS5763994A (en) Microphone
JPS5496302A (en) Acoustic wave transmission system and nonlinear cable transmitter

Legal Events

Date Code Title Description
ST Notification of lapse