DK149671B - Alarmsignalgenerator, der foeder en trykkammerhoejttaler - Google Patents

Alarmsignalgenerator, der foeder en trykkammerhoejttaler Download PDF

Info

Publication number
DK149671B
DK149671B DK388480AA DK388480A DK149671B DK 149671 B DK149671 B DK 149671B DK 388480A A DK388480A A DK 388480AA DK 388480 A DK388480 A DK 388480A DK 149671 B DK149671 B DK 149671B
Authority
DK
Denmark
Prior art keywords
signal
frequency
square
generator
alarm signal
Prior art date
Application number
DK388480AA
Other languages
Danish (da)
English (en)
Other versions
DK388480A (da
Inventor
Wolfgang Esser
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 DK388480A publication Critical patent/DK388480A/da
Publication of DK149671B publication Critical patent/DK149671B/da

Links

Classifications

    • 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
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • General Health & Medical Sciences (AREA)
  • Electromagnetism (AREA)
  • Acoustics & Sound (AREA)
  • General Physics & Mathematics (AREA)
  • Emergency Alarm Devices (AREA)
  • Alarm Systems (AREA)
  • Burglar Alarm Systems (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
  • Eye Examination Apparatus (AREA)
  • Optical Radar Systems And Details Thereof (AREA)
DK388480AA 1979-09-13 1980-09-12 Alarmsignalgenerator, der foeder en trykkammerhoejttaler DK149671B (da)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2936981A DE2936981C2 (de) 1979-09-13 1979-09-13 Warnsignalgenerator mit einem hohen Anteil an Oberwellen zur Speisung eines Druckkammerlautsprechers
DE2936981 1979-09-13

Publications (2)

Publication Number Publication Date
DK388480A DK388480A (da) 1981-03-14
DK149671B true DK149671B (da) 1986-09-01

Family

ID=6080745

Family Applications (1)

Application Number Title Priority Date Filing Date
DK388480AA DK149671B (da) 1979-09-13 1980-09-12 Alarmsignalgenerator, der foeder en trykkammerhoejttaler

Country Status (6)

Country Link
EP (1) EP0025537B1 (de)
AT (1) ATE8081T1 (de)
DE (1) DE2936981C2 (de)
DK (1) DK149671B (de)
FI (1) FI802589A (de)
NO (1) NO149367C (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4558305A (en) * 1982-12-20 1985-12-10 Emhart Industries, Inc. Multiple tone signaling device
DE3720402A1 (de) * 1987-06-19 1988-12-29 Hella Kg Hueck & Co Akustischer signalgeber, insbesondere fuer kraftfahrzeuge
EP0648364A1 (de) * 1993-04-30 1995-04-19 Federal Signal Corporation Tonerzeugungsschattung
DE102010045996A1 (de) 2010-09-18 2012-03-22 Volkswagen Ag Fahrzeug mit Elektroantrieb
US9900705B2 (en) * 2014-01-23 2018-02-20 Federal Signal Corporation Tone generation
DE202021104667U1 (de) * 2021-08-30 2021-09-27 Haberl Electronic Gmbh & Co. Kg Sondersignalanlage

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3514622A (en) * 1968-04-29 1970-05-26 Caterpillar Tractor Co Actuator circuit for a vehicle horn
US3810169A (en) * 1969-12-15 1974-05-07 P Locke Electronic siren system
FR2071291A5 (de) * 1969-12-23 1971-09-17 Couget Jacques
DE2104954C3 (de) * 1971-02-03 1975-10-16 Westfaelische Metall Industrie Kg, Hueck & Co, 4780 Lippstadt Akustischer Signalgeber für Kraftfahrzeuge
DE2518708B1 (de) * 1975-04-26 1976-02-26 Wandel & Goltermann Mobile elektroakustische Alarmsignalanlage,sogenanntes elektronisches Polizeihorn
FR2333314A1 (fr) * 1975-11-27 1977-06-24 Klaxon Sa Procede et dispositif d'alimentation d'un haut-parleur de signalisation acoustique

Also Published As

Publication number Publication date
DE2936981A1 (de) 1981-03-19
DK388480A (da) 1981-03-14
NO149367C (no) 1984-04-04
FI802589A (fi) 1981-03-14
EP0025537B1 (de) 1984-06-20
DE2936981C2 (de) 1985-08-22
EP0025537A1 (de) 1981-03-25
ATE8081T1 (de) 1984-07-15
NO802696L (no) 1981-03-16
NO149367B (no) 1983-12-27

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