FI802589A - Varningssignalgenerator foer matning av en tryckkammarehoegtalare - Google Patents

Varningssignalgenerator foer matning av en tryckkammarehoegtalare

Info

Publication number
FI802589A
FI802589A FI802589A FI802589A FI802589A FI 802589 A FI802589 A FI 802589A FI 802589 A FI802589 A FI 802589A FI 802589 A FI802589 A FI 802589A FI 802589 A FI802589 A FI 802589A
Authority
FI
Finland
Prior art keywords
signal
square wave
fundamental frequency
warning signal
frequency
Prior art date
Application number
FI802589A
Other languages
English (en)
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 FI802589A publication Critical patent/FI802589A/fi

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)
  • Multimedia (AREA)
  • General Physics & Mathematics (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Health & Medical Sciences (AREA)
  • Electromagnetism (AREA)
  • General Health & Medical Sciences (AREA)
  • Emergency Alarm Devices (AREA)
  • Alarm Systems (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
  • Burglar Alarm Systems (AREA)
  • Eye Examination Apparatus (AREA)
  • Optical Radar Systems And Details Thereof (AREA)
FI802589A 1979-09-13 1980-08-18 Varningssignalgenerator foer matning av en tryckkammarehoegtalare FI802589A (fi)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
FI802589A true FI802589A (fi) 1981-03-14

Family

ID=6080745

Family Applications (1)

Application Number Title Priority Date Filing Date
FI802589A FI802589A (fi) 1979-09-13 1980-08-18 Varningssignalgenerator foer matning av en tryckkammarehoegtalare

Country Status (6)

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

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 (en) * 1993-04-30 1995-04-19 Federal Signal Corporation Tone generating circuit
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 (fi) * 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
ATE8081T1 (de) 1984-07-15
EP0025537A1 (de) 1981-03-25
DK388480A (da) 1981-03-14
DE2936981C2 (de) 1985-08-22
DE2936981A1 (de) 1981-03-19
DK149671B (da) 1986-09-01
EP0025537B1 (de) 1984-06-20
NO802696L (no) 1981-03-16
NO149367B (no) 1983-12-27
NO149367C (no) 1984-04-04

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Legal Events

Date Code Title Description
FD Application lapsed

Owner name: WANDEL & GOLTERMANN GMBH & CO