AT300618B - Elektroakustische Raumschutzanlage - Google Patents
Elektroakustische RaumschutzanlageInfo
- Publication number
- AT300618B AT300618B AT840569A AT840569A AT300618B AT 300618 B AT300618 B AT 300618B AT 840569 A AT840569 A AT 840569A AT 840569 A AT840569 A AT 840569A AT 300618 B AT300618 B AT 300618B
- Authority
- AT
- Austria
- Prior art keywords
- electroacoustic
- protection system
- room protection
- room
- protection
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/16—Actuation by interference with mechanical vibrations in air or other fluid
- G08B13/1609—Actuation by interference with mechanical vibrations in air or other fluid using active vibration detection systems
- G08B13/1618—Actuation by interference with mechanical vibrations in air or other fluid using active vibration detection systems using ultrasonic detection means
- G08B13/1627—Actuation by interference with mechanical vibrations in air or other fluid using active vibration detection systems using ultrasonic detection means using Doppler shift detection circuits
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
- G01S15/02—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems using reflection of acoustic waves
- G01S15/50—Systems of measurement, based on relative movement of the target
- G01S15/52—Discriminating between fixed and moving objects or between objects moving at different speeds
- G01S15/523—Discriminating between fixed and moving objects or between objects moving at different speeds for presence detection
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- General Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Computer Networks & Wireless Communication (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
- Emergency Alarm Devices (AREA)
- Burglar Alarm Systems (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19681791060 DE1791060C3 (de) | 1968-09-05 | 1968-09-05 | Elektroakustische Anlage |
Publications (1)
Publication Number | Publication Date |
---|---|
AT300618B true AT300618B (de) | 1972-08-10 |
Family
ID=5707056
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT840569A AT300618B (de) | 1968-09-05 | 1969-09-03 | Elektroakustische Raumschutzanlage |
Country Status (3)
Country | Link |
---|---|
AT (1) | AT300618B (de) |
CH (1) | CH502657A (de) |
DE (1) | DE1791060C3 (de) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3754222A (en) * | 1971-12-13 | 1973-08-21 | Webster Electric Co Inc | Intrusion detection device utilizing low frequency sound waves and phase detection techniques |
CH557070A (de) * | 1973-06-28 | 1974-12-13 | Cerberus Ag | Verfahren zur erzeugung eines alarmsignales und alarmanlage zur durchfuehrung des verfahrens. |
FR2519448A1 (fr) * | 1982-01-07 | 1983-07-08 | Maillot Jacques | Appareil de detection contre l'effraction combinant plusieurs moyens |
US4608674A (en) * | 1982-08-06 | 1986-08-26 | American District Telegraph Company | Constant range ultrasonic motion detector |
DK0446385T3 (da) * | 1990-03-12 | 1996-01-15 | Siemens Ag | Ultralyd-overvågningssystem for et indbrudsmeldeanlæg |
-
1968
- 1968-09-05 DE DE19681791060 patent/DE1791060C3/de not_active Expired
-
1969
- 1969-09-03 CH CH1331569A patent/CH502657A/de not_active IP Right Cessation
- 1969-09-03 AT AT840569A patent/AT300618B/de not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
DE1791060B2 (de) | 1975-01-02 |
DE1791060A1 (de) | 1971-10-28 |
CH502657A (de) | 1971-01-31 |
DE1791060C3 (de) | 1975-08-14 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EIH | Change in the person of patent owner | ||
A1B | Correction | ||
ELJ | Ceased due to non-payment of the annual fee |