NO149367C - Varselsignalgenerator for mating av en trykkammerhoeyttaler - Google Patents

Varselsignalgenerator for mating av en trykkammerhoeyttaler

Info

Publication number
NO149367C
NO149367C NO802696A NO802696A NO149367C NO 149367 C NO149367 C NO 149367C NO 802696 A NO802696 A NO 802696A NO 802696 A NO802696 A NO 802696A NO 149367 C NO149367 C NO 149367C
Authority
NO
Norway
Prior art keywords
signal
square wave
warning signal
fundamental frequency
frequency
Prior art date
Application number
NO802696A
Other languages
English (en)
Other versions
NO802696L (no
NO149367B (no
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 NO802696L publication Critical patent/NO802696L/no
Publication of NO149367B publication Critical patent/NO149367B/no
Publication of NO149367C publication Critical patent/NO149367C/no

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)
  • Eye Examination Apparatus (AREA)
  • Optical Radar Systems And Details Thereof (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
  • Burglar Alarm Systems (AREA)
NO802696A 1979-09-13 1980-09-11 Varselsignalgenerator for mating av en trykkammerhoeyttaler NO149367C (no)

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 (3)

Publication Number Publication Date
NO802696L NO802696L (no) 1981-03-16
NO149367B NO149367B (no) 1983-12-27
NO149367C true NO149367C (no) 1984-04-04

Family

ID=6080745

Family Applications (1)

Application Number Title Priority Date Filing Date
NO802696A NO149367C (no) 1979-09-13 1980-09-11 Varselsignalgenerator for mating av en trykkammerhoeyttaler

Country Status (6)

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

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 (no) * 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
DK149671B (da) 1986-09-01
FI802589A (fi) 1981-03-14
NO802696L (no) 1981-03-16
EP0025537B1 (de) 1984-06-20
DE2936981A1 (de) 1981-03-19
DK388480A (da) 1981-03-14
EP0025537A1 (de) 1981-03-25
ATE8081T1 (de) 1984-07-15
DE2936981C2 (de) 1985-08-22
NO149367B (no) 1983-12-27

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