CA2260577C - Plaque d'identite et systeme pour la surveillance de la securite des patients - Google Patents

Plaque d'identite et systeme pour la surveillance de la securite des patients Download PDF

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Publication number
CA2260577C
CA2260577C CA 2260577 CA2260577A CA2260577C CA 2260577 C CA2260577 C CA 2260577C CA 2260577 CA2260577 CA 2260577 CA 2260577 A CA2260577 A CA 2260577A CA 2260577 C CA2260577 C CA 2260577C
Authority
CA
Canada
Prior art keywords
output
input
tag
coupled
signal
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 - Lifetime
Application number
CA 2260577
Other languages
English (en)
Other versions
CA2260577A1 (fr
Inventor
Vladimir Federman
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
eXI Wireless Systems 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
Application filed by eXI Wireless Systems Inc filed Critical eXI Wireless Systems Inc
Priority to CA 2260577 priority Critical patent/CA2260577C/fr
Publication of CA2260577A1 publication Critical patent/CA2260577A1/fr
Application granted granted Critical
Publication of CA2260577C publication Critical patent/CA2260577C/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/22—Electrical actuation
    • G08B13/26—Electrical actuation by proximity of an intruder causing variation in capacitance or inductance of a circuit
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V15/00—Tags attached to, or associated with, an object, in order to enable detection of the object
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
    • G08B21/18—Status alarms
    • G08B21/22—Status alarms responsive to presence or absence of persons
    • 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
    • G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
    • G01S13/74—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems
    • G01S13/75—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems using transponders powered from received waves, e.g. using passive transponders, or using passive reflectors
    • G01S13/751—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems using transponders powered from received waves, e.g. using passive transponders, or using passive reflectors wherein the responder or reflector radiates a coded signal

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geophysics (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Measuring And Recording Apparatus For Diagnosis (AREA)
  • Burglar Alarm Systems (AREA)
CA 2260577 1999-02-01 1999-02-01 Plaque d'identite et systeme pour la surveillance de la securite des patients Expired - Lifetime CA2260577C (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA 2260577 CA2260577C (fr) 1999-02-01 1999-02-01 Plaque d'identite et systeme pour la surveillance de la securite des patients

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA 2260577 CA2260577C (fr) 1999-02-01 1999-02-01 Plaque d'identite et systeme pour la surveillance de la securite des patients

Publications (2)

Publication Number Publication Date
CA2260577A1 CA2260577A1 (fr) 2000-08-01
CA2260577C true CA2260577C (fr) 2002-07-23

Family

ID=4163244

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2260577 Expired - Lifetime CA2260577C (fr) 1999-02-01 1999-02-01 Plaque d'identite et systeme pour la surveillance de la securite des patients

Country Status (1)

Country Link
CA (1) CA2260577C (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005025278A1 (fr) * 2003-09-04 2005-03-17 Vernon George Houle Procede destine a surveiller le mouvement a l'interieur et aux alentours exterieurs d'une installation

Also Published As

Publication number Publication date
CA2260577A1 (fr) 2000-08-01

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Legal Events

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MKEX Expiry

Effective date: 20190201