JPS5141480B1 - - Google Patents

Info

Publication number
JPS5141480B1
JPS5141480B1 JP46046770A JP4677071A JPS5141480B1 JP S5141480 B1 JPS5141480 B1 JP S5141480B1 JP 46046770 A JP46046770 A JP 46046770A JP 4677071 A JP4677071 A JP 4677071A JP S5141480 B1 JPS5141480 B1 JP S5141480B1
Authority
JP
Japan
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.)
Pending
Application number
JP46046770A
Other languages
Japanese (ja)
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 filed Critical
Publication of JPS5141480B1 publication Critical patent/JPS5141480B1/ja
Pending legal-status Critical Current

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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S367/00—Communications, electrical: acoustic wave systems and devices
    • Y10S367/901—Noise or unwanted signal reduction in nonseismic receiving system

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Acoustics & Sound (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Burglar Alarm Systems (AREA)
JP46046770A 1970-06-26 1971-06-26 Pending JPS5141480B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US5023370A 1970-06-26 1970-06-26

Publications (1)

Publication Number Publication Date
JPS5141480B1 true JPS5141480B1 (fr) 1976-11-10

Family

ID=21964106

Family Applications (1)

Application Number Title Priority Date Filing Date
JP46046770A Pending JPS5141480B1 (fr) 1970-06-26 1971-06-26

Country Status (6)

Country Link
US (1) US3638210A (fr)
JP (1) JPS5141480B1 (fr)
CA (1) CA940222A (fr)
DE (1) DE2131113A1 (fr)
FR (1) FR2096792B1 (fr)
GB (1) GB1320993A (fr)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3753116A (en) * 1970-10-20 1973-08-14 California Inst Of Techn Pocket size microwave radiation hazard detector
US3781859A (en) * 1972-04-19 1973-12-25 Seabroad Electric Controlled wave pattern ultrasonic burglar alarm
US3800270A (en) * 1972-07-12 1974-03-26 Johnson Service Co Piezoelectric acoustical transducer for transmitting and receiving
US3828336A (en) * 1973-07-12 1974-08-06 Dynamics Corp Massa Div Intrusion alarm system with improved air turbulence compensation
US3866198A (en) * 1973-10-17 1975-02-11 Leopold Cohen Ultrasonic intrusion detection systems employing turbulence discrimination
US4114146A (en) * 1975-09-13 1978-09-12 Matsushita Electric Works, Ltd. Ultrasonic wave watching device of moving object detecting type
US4129856A (en) * 1976-11-15 1978-12-12 Contronic Controls Limited Filter system and method for intrusion alarm
DE3138723A1 (de) * 1981-09-29 1983-04-07 Siemens AG, 1000 Berlin und 8000 München Echosignal-auswerteverfahren zur einbruchssicherung nach dem ultraschall-dopplerverfahren und schaltungsanordnung zur durchfuehrung des echosignal-auswerteverfahrens
GB8617124D0 (en) * 1986-07-15 1986-08-20 Mace R J Vehicle protection apparatus
US5856778A (en) * 1996-02-29 1999-01-05 Denso Corporation Intrusion detecting apparatus for a vehicle
CN111466080B (zh) 2017-12-07 2024-05-28 普立菲有限公司 在控制回路中具有至少二阶滤波器的放大器
EP3721553B1 (fr) * 2017-12-07 2023-09-06 Purifi ApS Amplificateur doté d'un compensateur avec un réseau au moins de troisième ordre
WO2019110152A1 (fr) 2017-12-07 2019-06-13 Purifi Aps Circuit amplificateur

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2714205A (en) * 1945-03-24 1955-07-26 Grayson Harry Radar apparatus for distinguishing between moving and stationary objects
US2655645A (en) * 1947-09-26 1953-10-13 Alertronic Corp Method and apparatus for detecting motion in a confined space
US2769972A (en) * 1954-03-15 1956-11-06 American District Telegraph Co Method and apparatus for detecting motion
US3081433A (en) * 1960-12-07 1963-03-12 Sperry Rand Corp Two-stage frequency detecting device employing a radiation sensitive input means
GB954536A (en) * 1961-08-05 1964-04-08 Sylvania Electric Prod Intrusion alarm system
US3242486A (en) * 1962-04-20 1966-03-22 Johnson Service Co Intrusion detection system
US3293631A (en) * 1962-12-03 1966-12-20 Honeywell Inc Detection apparatus
US3418649A (en) * 1966-02-18 1968-12-24 Boeing Co Intruder detection system
US3383678A (en) * 1966-12-23 1968-05-14 Advanced Devices Lab Inc Moving object detection system
US3452289A (en) * 1967-02-16 1969-06-24 Motorola Inc Differential amplifier circuits

Also Published As

Publication number Publication date
CA940222A (en) 1974-01-15
GB1320993A (en) 1973-06-20
DE2131113A1 (de) 1972-01-27
US3638210A (en) 1972-01-25
FR2096792A1 (fr) 1972-02-25
FR2096792B1 (fr) 1975-02-21

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