CA1137615A - Senseur de declenchement - Google Patents

Senseur de declenchement

Info

Publication number
CA1137615A
CA1137615A CA000320804A CA320804A CA1137615A CA 1137615 A CA1137615 A CA 1137615A CA 000320804 A CA000320804 A CA 000320804A CA 320804 A CA320804 A CA 320804A CA 1137615 A CA1137615 A CA 1137615A
Authority
CA
Canada
Prior art keywords
predetermined area
signal
wave
emitted
reflected
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
Application number
CA000320804A
Other languages
English (en)
Inventor
Gregory Lekhtman
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.)
Individual
Original Assignee
Individual
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 by Individual filed Critical Individual
Priority to CA000320804A priority Critical patent/CA1137615A/fr
Application granted granted Critical
Publication of CA1137615A publication Critical patent/CA1137615A/fr
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C9/00—Individual registration on entry or exit
    • 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
    • G01S15/04—Systems determining presence of a target

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)
CA000320804A 1979-02-01 1979-02-01 Senseur de declenchement Expired CA1137615A (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA000320804A CA1137615A (fr) 1979-02-01 1979-02-01 Senseur de declenchement

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA000320804A CA1137615A (fr) 1979-02-01 1979-02-01 Senseur de declenchement

Publications (1)

Publication Number Publication Date
CA1137615A true CA1137615A (fr) 1982-12-14

Family

ID=4113451

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000320804A Expired CA1137615A (fr) 1979-02-01 1979-02-01 Senseur de declenchement

Country Status (1)

Country Link
CA (1) CA1137615A (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4700295A (en) * 1985-04-18 1987-10-13 Barry Katsof System and method for forecasting bank traffic and scheduling work assignments for bank personnel
US5519669A (en) * 1993-08-19 1996-05-21 At&T Corp. Acoustically monitored site surveillance and security system for ATM machines and other facilities
US5541835A (en) * 1992-12-29 1996-07-30 Jean-Guy Bessette Monitoring and forecasting customer traffic
CN103824367A (zh) * 2014-02-28 2014-05-28 重庆多创电子技术有限公司 智能超声波门禁感应器

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4700295A (en) * 1985-04-18 1987-10-13 Barry Katsof System and method for forecasting bank traffic and scheduling work assignments for bank personnel
US5541835A (en) * 1992-12-29 1996-07-30 Jean-Guy Bessette Monitoring and forecasting customer traffic
US5519669A (en) * 1993-08-19 1996-05-21 At&T Corp. Acoustically monitored site surveillance and security system for ATM machines and other facilities
US5712830A (en) * 1993-08-19 1998-01-27 Lucent Technologies Inc. Acoustically monitored shopper traffic surveillance and security system for shopping malls and retail space
CN103824367A (zh) * 2014-02-28 2014-05-28 重庆多创电子技术有限公司 智能超声波门禁感应器
CN103824367B (zh) * 2014-02-28 2016-03-16 重庆多创电子技术有限公司 智能超声波门禁感应器

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Legal Events

Date Code Title Description
MKEX Expiry