GB1371414A – Intruder alarm systems
– Google Patents
GB1371414A – Intruder alarm systems
– Google Patents
Intruder alarm systems
Info
Publication number
GB1371414A
GB1371414A
GB3714072A
GB3714072A
GB1371414A
GB 1371414 A
GB1371414 A
GB 1371414A
GB 3714072 A
GB3714072 A
GB 3714072A
GB 3714072 A
GB3714072 A
GB 3714072A
GB 1371414 A
GB1371414 A
GB 1371414A
Authority
GB
United Kingdom
Prior art keywords
signals
sensors
alarm
amplifiers
aug
Prior art date
1971-08-13
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
GB3714072A
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.)
SONTRIX Inc
Original Assignee
SONTRIX Inc
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.)
1971-08-13
Filing date
1972-08-09
Publication date
1974-10-23
1972-08-09
Application filed by SONTRIX Inc
filed
Critical
SONTRIX Inc
1974-10-23
Publication of GB1371414A
publication
Critical
patent/GB1371414A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
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
Abstract
1371414 Ultrasonic intruder detector SONTRIXInc 9 Aug 1972 [13 Aug 1971] 37140/72 Heading H4D [Also in Division G4] An intruder alarm system comprises: means 11 for generating sound waves in an area to be protected; a plurality of sensors 81 for detecting echo signals; a plurality of amplifiers 83 for amplifying the signals from respective sensors; and means for combining the outputs from the amplifiers to produce a signal for actuating an alarm 91. An oscillator 11 has its frequency determined by the parameters of a transducer 15 coupled to it at 17 and also drives two further transducers 15 via a driver stage 13. The reflected signals from protected area 10 are picked-up by the sensors 81 and, after amplification are summed on lines 101, 103 to provide an input to amplifier 87 which is arranged to reject any common mode signals. The output of the amplifier is then fed to unit 89 which, in order to minimize false alarms, selects only low frequency beat signals and passes them to a diode pump detector to produce a signal to operate an alarm relay 241. The level of the output may be tested by operating a switch (231, Fig. 6, not shown). (For Figure see next page.)
GB3714072A
1971-08-13
1972-08-09
Intruder alarm systems
Expired
GB1371414A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
US17142071A
1971-08-13
1971-08-13
Publications (1)
Publication Number
Publication Date
GB1371414A
true
GB1371414A
(en)
1974-10-23
Family
ID=22623663
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB3714072A
Expired
GB1371414A
(en)
1971-08-13
1972-08-09
Intruder alarm systems
Country Status (5)
Country
Link
US
(1)
US3736584A
(en)
JP
(2)
JPS4828197A
(en)
DE
(1)
DE2239763C3
(en)
GB
(1)
GB1371414A
(en)
IT
(1)
IT967069B
(en)
Families Citing this family (13)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US3986182A
(en)
*
1974-03-27
1976-10-12
Sontrix, Inc.
Multi-zone intrusion detection system
US4360905A
(en)
*
1979-04-16
1982-11-23
Pittway Corporation
Intrusion alarm system for use with two-wire-cable
US5867099A
(en)
*
1997-11-24
1999-02-02
Keeter; Daniel R.
Motion sensing, lighting and alarming system
US8639527B2
(en)
2008-04-30
2014-01-28
Ecolab Usa Inc.
Validated healthcare cleaning and sanitizing practices
CA2722489C
(en)
*
2008-04-30
2018-05-22
Ecolab Inc.
Validated healthcare cleaning and sanitizing practices
CN106846154A
(en)
*
2009-04-24
2017-06-13
埃科莱布美国股份有限公司
By monitor chemical products using managing clean process
US8502680B2
(en)
*
2009-06-12
2013-08-06
Ecolab Usa Inc.
Hand hygiene compliance monitoring
US8581725B2
(en)
*
2010-03-04
2013-11-12
Lior Goldenberg
Position change sensing anti-theft device
US20140210620A1
(en)
2013-01-25
2014-07-31
Ultraclenz Llc
Wireless communication for dispenser beacons
USRE48951E1
(en)
2015-08-05
2022-03-01
Ecolab Usa Inc.
Hand hygiene compliance monitoring
WO2018165107A1
(en)
2017-03-07
2018-09-13
Ecolab Usa Inc.
Monitoring modules for hand hygiene dispensers
US10529219B2
(en)
2017-11-10
2020-01-07
Ecolab Usa Inc.
Hand hygiene compliance monitoring
WO2020132525A1
(en)
2018-12-20
2020-06-25
Ecolab Usa Inc.
Adaptive route, bi-directional network communication
Family Cites Families (2)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US3525976A
(en)
*
1968-12-27
1970-08-25
Parke Davis & Co
Ultrasonic amplitude-doppler detector
US3629812A
(en)
*
1969-05-15
1971-12-21
Kidde & Co Walter
Turbulence-compensated ultrasonic intruder detector
1971
1971-08-13
US
US00171420A
patent/US3736584A/en
not_active
Expired – Lifetime
1972
1972-08-09
GB
GB3714072A
patent/GB1371414A/en
not_active
Expired
1972-08-11
IT
IT28155/72A
patent/IT967069B/en
active
1972-08-12
DE
DE2239763A
patent/DE2239763C3/en
not_active
Expired
1972-08-14
JP
JP47081362A
patent/JPS4828197A/ja
active
Pending
1981
1981-01-12
JP
JP1981001818U
patent/JPS5756301Y2/ja
not_active
Expired
Also Published As
Publication number
Publication date
US3736584A
(en)
1973-05-29
JPS56105191U
(en)
1981-08-17
JPS4828197A
(en)
1973-04-13
DE2239763A1
(en)
1973-03-01
DE2239763C3
(en)
1982-04-08
JPS5756301Y2
(en)
1982-12-03
IT967069B
(en)
1974-02-28
DE2239763B2
(en)
1981-06-25
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Legal Events
Date
Code
Title
Description
1975-03-05
PS
Patent sealed [section 19, patents act 1949]
1983-03-16
PCNP
Patent ceased through non-payment of renewal fee
