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

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 (de) 1976-10-27

Family

ID=5945114

Family Applications (1)

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

Country Status (5)

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

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

Similar Documents

Publication Publication Date Title
EP1067669A3 (de) Wechselrichter mit Pulsweitenmodulation
US4001816A (en) Electronic chime
NO761392L (de)
KR970008877A (ko) 펄스 폭 변조 제어 회로
US4204200A (en) Electronic horn arrangement
DK149671B (da) Alarmsignalgenerator, der foeder en trykkammerhoejttaler
JPH09147269A (ja) 警報音響装置
GB1565525A (en) Acoustic signal generators
JPH06118964A (ja) ブザー吹鳴装置
JPS6318080Y2 (de)
JP2005151405A (ja) 光情報発信装置及び受信装置
RU65269U1 (ru) Звуковой оповещатель
JPH0522960Y2 (de)
SU698142A1 (ru) Система передачи команд по лини м электропередач
RU1818690C (ru) Ключевой передатчик амплитудно-модулированных колебаний с подавленной несущей
SU63187A1 (ru) Способ многократной радиопередачи
JPS6094845A (ja) 車両用の警報装置
JPS5416648A (en) Harmonic current compensator
JP2615155B2 (ja) アーク電流変調装置
JPS5723380A (en) Remote controlled transmitting circuit
JPH0384596A (ja) フォルマント音発生装置
JPH05210390A (ja) 発音体駆動回路
WO2019053906A1 (ja) 車両接近通報器
JPS5791675A (en) Multiple inverter
JPS54158631A (en) Control system of alternating current motor driving frequency converter