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GB1565525A - Acoustic signal generators - Google Patents

Acoustic signal generators Download PDF

Info

Publication number
GB1565525A
GB1565525A GB4995576A GB4995576A GB1565525A GB 1565525 A GB1565525 A GB 1565525A GB 4995576 A GB4995576 A GB 4995576A GB 4995576 A GB4995576 A GB 4995576A GB 1565525 A GB1565525 A GB 1565525A
Authority
GB
United Kingdom
Prior art keywords
signal generator
frequency
signal
counting circuit
cycles
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.)
Expired
Application number
GB4995576A
Other languages
English (en)
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.)
Westfaelische Metall Industrie KG Hueck and Co
Original Assignee
Westfaelische Metall Industrie KG Hueck 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 Westfaelische Metall Industrie KG Hueck and Co filed Critical Westfaelische Metall Industrie KG Hueck and Co
Publication of GB1565525A publication Critical patent/GB1565525A/en
Expired legal-status Critical Current

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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q5/00—Arrangement or adaptation of acoustic signal devices
    • 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
    • G10K9/00—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers
    • G10K9/12—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers electrically operated

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • General Health & Medical Sciences (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
GB4995576A 1975-12-06 1976-10-30 Acoustic signal generators Expired GB1565525A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19752554940 DE2554940C2 (de) 1975-12-06 1975-12-06 Akustischer Signalgeber für Kraftfahrzeuge

Publications (1)

Publication Number Publication Date
GB1565525A true GB1565525A (en) 1980-04-23

Family

ID=5963666

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4995576A Expired GB1565525A (en) 1975-12-06 1976-10-30 Acoustic signal generators

Country Status (6)

Country Link
AT (1) AT354904B (sv)
BE (1) BE848315A (sv)
DE (1) DE2554940C2 (sv)
GB (1) GB1565525A (sv)
NL (1) NL178543C (sv)
SE (1) SE420994B (sv)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0919437A1 (en) * 1997-11-26 1999-06-02 Meta System S.p.A. Multifunction electronic siren for vehicles

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2852196C2 (de) * 1978-12-02 1983-01-27 Richard Hirschmann Radiotechnisches Werk, 7300 Esslingen Akustischer Warnsignalgeber mit periodisch sich ändernder Frequenz des Ausgangssignals
DE3420988A1 (de) * 1984-06-06 1985-12-12 Robert Bosch Gmbh, 7000 Stuttgart Elektronische warnsignalanlage, insbesondere fuer kraftfahrzeuge
DE3720402A1 (de) * 1987-06-19 1988-12-29 Hella Kg Hueck & Co Akustischer signalgeber, 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 (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0919437A1 (en) * 1997-11-26 1999-06-02 Meta System S.p.A. Multifunction electronic siren for vehicles

Also Published As

Publication number Publication date
AT354904B (de) 1979-02-11
NL7612972A (nl) 1977-06-08
NL178543B (nl) 1985-11-01
SE420994B (sv) 1981-11-16
ATA898876A (de) 1979-06-15
NL178543C (nl) 1986-04-01
DE2554940C2 (de) 1977-12-29
SE7613185L (sv) 1977-06-07
DE2554940B1 (de) 1977-04-28
BE848315A (fr) 1977-03-16

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee