CA1171514A - Systeme de securite sans fil - Google Patents

Systeme de securite sans fil

Info

Publication number
CA1171514A
CA1171514A CA000384197A CA384197A CA1171514A CA 1171514 A CA1171514 A CA 1171514A CA 000384197 A CA000384197 A CA 000384197A CA 384197 A CA384197 A CA 384197A CA 1171514 A CA1171514 A CA 1171514A
Authority
CA
Canada
Prior art keywords
transmission
sideband
ultrasonic
frequency
offset
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
CA000384197A
Other languages
English (en)
Inventor
Kenneth R. Hackett
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.)
Ultrak Inc
Original Assignee
Ultrak 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.)
Filing date
Publication date
Priority claimed from US06/182,497 external-priority patent/US4367458A/en
Application filed by Ultrak Inc filed Critical Ultrak Inc
Application granted granted Critical
Publication of CA1171514A publication Critical patent/CA1171514A/fr
Expired 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
    • G08B13/18—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
    • G08B25/003—Address allocation methods and details
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B1/00—Systems for signalling characterised solely by the form of transmission of the signal
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B1/00—Systems for signalling characterised solely by the form of transmission of the signal
    • G08B1/08—Systems for signalling characterised solely by the form of transmission of the signal using electric transmission ; transformation of alarm signals to electrical signals from a different medium, e.g. transmission of an electric alarm signal upon detection of an audible alarm signal
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B26/00—Alarm systems in which substations are interrogated in succession by a central station
    • G08B26/007—Wireless interrogation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B11/00—Transmission systems employing sonic, ultrasonic or infrasonic waves

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Signal Processing (AREA)
  • Burglar Alarm Systems (AREA)
  • Mobile Radio Communication Systems (AREA)
CA000384197A 1980-08-29 1981-08-19 Systeme de securite sans fil Expired CA1171514A (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US06/182,497 US4367458A (en) 1980-08-29 1980-08-29 Supervised wireless security system
US182,497 1980-08-29
US28202981A 1981-07-09 1981-07-09
US282,029 1981-07-09

Publications (1)

Publication Number Publication Date
CA1171514A true CA1171514A (fr) 1984-07-24

Family

ID=26878134

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000384197A Expired CA1171514A (fr) 1980-08-29 1981-08-19 Systeme de securite sans fil

Country Status (7)

Country Link
EP (1) EP0058721A4 (fr)
JP (1) JPS57501358A (fr)
KR (1) KR830006753A (fr)
CA (1) CA1171514A (fr)
IT (1) IT1143430B (fr)
MX (1) MX151041A (fr)
WO (1) WO1982000910A1 (fr)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0125387B1 (fr) * 1983-04-29 1987-01-14 Cerberus Ag Méthode et dispositif de signalisation de risque
EP0253156A1 (fr) * 1986-06-25 1988-01-20 Siemens Aktiengesellschaft Système de signalisation d'effraction
JP3100716B2 (ja) * 1991-01-04 2000-10-23 シーエスアイアール 識別装置
IL107636A (en) * 1992-11-18 1998-02-08 Csir Identify multiple items
KR101027540B1 (ko) * 2009-09-23 2011-04-12 한국해양연구원 초음파를 이용한 선박의 선체 통신망 및 그 통신방법
US8509882B2 (en) 2010-06-08 2013-08-13 Alivecor, Inc. Heart monitoring system usable with a smartphone or computer
US8700137B2 (en) 2012-08-30 2014-04-15 Alivecor, Inc. Cardiac performance monitoring system for use with mobile communications devices
US9351654B2 (en) 2010-06-08 2016-05-31 Alivecor, Inc. Two electrode apparatus and methods for twelve lead ECG
WO2012128403A1 (fr) * 2011-03-23 2012-09-27 제주대학교산학협력단 Réseau de communication de la coque d'un bateau utilisant les ondes ultrasonores et procédé de communication associé
US8403218B1 (en) * 2012-02-10 2013-03-26 Symbol Technologies, Inc. Method and apparatus for ultrasonic data transmission and locationing
WO2014074913A1 (fr) 2012-11-08 2014-05-15 Alivecor, Inc. Détection de signal d'électrocardiogramme
WO2014107700A1 (fr) 2013-01-07 2014-07-10 Alivecor, Inc. Procédés et systèmes de placement d'électrode
WO2014145927A1 (fr) 2013-03-15 2014-09-18 Alivecor, Inc. Systèmes et procédés pour traiter et analyser des données médicales
US9247911B2 (en) 2013-07-10 2016-02-02 Alivecor, Inc. Devices and methods for real-time denoising of electrocardiograms
WO2015089484A1 (fr) 2013-12-12 2015-06-18 Alivecor, Inc. Procédés et systèmes de suivi et de notation de l'arythmie
EP3282933B1 (fr) 2015-05-13 2020-07-08 Alivecor, Inc. Surveillance de la discordance
CN114944876A (zh) * 2021-02-10 2022-08-26 北京小米移动软件有限公司 超声波处理方法、装置、设备及存储介质
CN115862306B (zh) * 2022-10-21 2024-05-17 广州视声智能科技有限公司 基于超声波的智能控制设备控制方法和装置

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3422397A (en) * 1968-01-29 1969-01-14 Honeywell Inc Control apparatus
US3696384A (en) * 1971-07-08 1972-10-03 Recognition Devices Ultrasonic tracking and locating system
US3737858A (en) * 1971-07-13 1973-06-05 Advanced Research Corp Versatile telemetering system
US3815093A (en) * 1973-05-11 1974-06-04 Afa Syst Inc Signaling system utilizing frequency burst duration and absence for control functions
US3927404A (en) * 1973-10-18 1975-12-16 Standard Electric Time Corp Time division multiple access communication system for status monitoring
US3946315A (en) * 1975-06-27 1976-03-23 Hughes Aircraft Company Single frequency signalling in a radiotelephone communication system with idle condition signal generator at one terminal activated by another terminal
FR2368766A1 (fr) * 1976-10-19 1978-05-19 Automatisme Cie Gle Systeme de transmission d'alarme a partir d'un detecteur
DE2712690C2 (de) * 1977-03-23 1986-06-05 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Einrichtung zur drahtlosen Übermittlung eines kodierten Notrufes
US4160246A (en) * 1977-10-03 1979-07-03 Fairchild Camera And Instrument Corp. Wireless multi-head smoke detector system
CA1116284A (fr) * 1979-10-09 1982-01-12 George S. Sagi Appareil et systeme d'emission et de reception sans fil de signaux d'alarme codes audio et/ou sonores
DE3000958C2 (de) * 1980-01-12 1984-04-26 ANT Nachrichtentechnik GmbH, 7150 Backnang Hausnotrufsystem mit Fernauslösung

Also Published As

Publication number Publication date
KR830006753A (ko) 1983-10-06
EP0058721A1 (fr) 1982-09-01
IT1143430B (it) 1986-10-22
IT8149199A0 (it) 1981-08-28
MX151041A (es) 1984-09-17
EP0058721A4 (fr) 1985-07-01
JPS57501358A (fr) 1982-07-29
WO1982000910A1 (fr) 1982-03-18

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Legal Events

Date Code Title Description
MKEC Expiry (correction)
MKEX Expiry