DE50106265D1 - Acoustic alarm device for a hazard alarm - Google Patents
Acoustic alarm device for a hazard alarmInfo
- Publication number
- DE50106265D1 DE50106265D1 DE50106265T DE50106265T DE50106265D1 DE 50106265 D1 DE50106265 D1 DE 50106265D1 DE 50106265 T DE50106265 T DE 50106265T DE 50106265 T DE50106265 T DE 50106265T DE 50106265 D1 DE50106265 D1 DE 50106265D1
- Authority
- DE
- Germany
- Prior art keywords
- alarm
- acoustic
- hazard
- sender
- transistor
- 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 - Lifetime
Links
Classifications
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
- B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
- B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
- B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
- B06B1/0207—Driving circuits
- B06B1/0215—Driving circuits for generating pulses, e.g. bursts of oscillations, envelopes
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R27/00—Public address systems
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
- B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
- B06B2201/00—Indexing scheme associated with B06B1/0207 for details covered by B06B1/0207 but not provided for in any of its subgroups
- B06B2201/50—Application to a particular transducer type
- B06B2201/55—Piezoelectric transducer
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Mechanical Engineering (AREA)
- Alarm Systems (AREA)
- Emergency Alarm Devices (AREA)
- Fire Alarms (AREA)
Abstract
The acoustic alarm sender has a piezo acoustic sender (1) and a circuit driving it with at least one transistor (2,3), an arrangement for generating control pulses (I1,I2) for the transistor(s) as well as an inductance (5) connected in series with the piezo acoustic sender. Two transistors can be provided, each operated with a series of control pulses.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP01128683A EP1316931B1 (en) | 2001-12-01 | 2001-12-01 | Acoustic device for warning detector |
Publications (1)
Publication Number | Publication Date |
---|---|
DE50106265D1 true DE50106265D1 (en) | 2005-06-23 |
Family
ID=8179428
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE50106265T Expired - Lifetime DE50106265D1 (en) | 2001-12-01 | 2001-12-01 | Acoustic alarm device for a hazard alarm |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP1316931B1 (en) |
AT (1) | ATE295981T1 (en) |
DE (1) | DE50106265D1 (en) |
ES (1) | ES2242701T3 (en) |
PT (1) | PT1316931E (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1666166A1 (en) * | 2004-12-01 | 2006-06-07 | Asulab S.A. | method for generating polyphone sound |
EP1746552A1 (en) | 2005-07-19 | 2007-01-24 | Siemens Schweiz AG | Bi-directional communication between an acoustic hazard detecting unit and at least a further unit |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH654169GA3 (en) * | 1984-04-25 | 1986-02-14 | ||
US4954960A (en) * | 1986-11-07 | 1990-09-04 | Alcon Laboratories | Linear power control for ultrasonic probe with tuned reactance |
IT9004965U1 (en) * | 1990-12-07 | 1992-06-08 | G P B Beghelli S R L Ora Begnelli S R L | IMPROVEMENT IN INDEPENDENT EMERGENCY LIGHTING SYSTEMS WITH FIRE, HARMFUL GAS, AIR POLLUTION INDICATORS AND SIMILAR |
FR2732805B1 (en) * | 1995-04-05 | 1997-06-20 | Klaxon Sa | PIEZOELECTRIC SOUND WARNING DEVICE, PARTICULARLY FOR VEHICLE EQUIPMENT |
US6339377B1 (en) * | 1998-11-24 | 2002-01-15 | Kojin Co., Ltd. | Article surveillance security system with self-alarm |
-
2001
- 2001-12-01 PT PT01128683T patent/PT1316931E/en unknown
- 2001-12-01 EP EP01128683A patent/EP1316931B1/en not_active Expired - Lifetime
- 2001-12-01 AT AT01128683T patent/ATE295981T1/en active
- 2001-12-01 ES ES01128683T patent/ES2242701T3/en not_active Expired - Lifetime
- 2001-12-01 DE DE50106265T patent/DE50106265D1/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP1316931B1 (en) | 2005-05-18 |
EP1316931A1 (en) | 2003-06-04 |
ATE295981T1 (en) | 2005-06-15 |
PT1316931E (en) | 2005-09-30 |
ES2242701T3 (en) | 2005-11-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8327 | Change in the person/name/address of the patent owner |
Owner name: SIEMENS AKTIENGESELLSCHAFT, 80333 MUENCHEN, DE |