DK149671B - Alarmsignalgenerator, der foeder en trykkammerhoejttaler - Google Patents
Alarmsignalgenerator, der foeder en trykkammerhoejttaler Download PDFInfo
- 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
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)
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)
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)
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 |
-
1979
- 1979-09-13 DE DE2936981A patent/DE2936981C2/de not_active Expired
-
1980
- 1980-08-18 FI FI802589A patent/FI802589A/fi not_active Application Discontinuation
- 1980-08-29 AT AT80105148T patent/ATE8081T1/de not_active IP Right Cessation
- 1980-08-29 EP EP80105148A patent/EP0025537B1/de not_active Expired
- 1980-09-11 NO NO802696A patent/NO149367C/no unknown
- 1980-09-12 DK DK388480AA patent/DK149671B/da not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
EP0025537B1 (de) | 1984-06-20 |
EP0025537A1 (de) | 1981-03-25 |
ATE8081T1 (de) | 1984-07-15 |
FI802589A (fi) | 1981-03-14 |
DE2936981C2 (de) | 1985-08-22 |
DK388480A (da) | 1981-03-14 |
DE2936981A1 (de) | 1981-03-19 |
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 |
---|---|---|---|
PHB | Application deemed withdrawn due to non-payment or other reasons |