CA2189461A1 - System monitoring programmable implantable transponder - Google Patents

System monitoring programmable implantable transponder

Info

Publication number
CA2189461A1
CA2189461A1 CA002189461A CA2189461A CA2189461A1 CA 2189461 A1 CA2189461 A1 CA 2189461A1 CA 002189461 A CA002189461 A CA 002189461A CA 2189461 A CA2189461 A CA 2189461A CA 2189461 A1 CA2189461 A1 CA 2189461A1
Authority
CA
Canada
Prior art keywords
system monitoring
input signal
programmable implantable
frequency
implantable transponder
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.)
Granted
Application number
CA002189461A
Other languages
French (fr)
Other versions
CA2189461C (en
Inventor
Donald J. Urbas
David Ellwood
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.)
Bio Medic Data Systems Inc
Original Assignee
Donald J. Urbas
Bio Medic Data Systems, Inc.
David Ellwood
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 US07/562,300 external-priority patent/US5252962A/en
Application filed by Donald J. Urbas, Bio Medic Data Systems, Inc., David Ellwood filed Critical Donald J. Urbas
Publication of CA2189461A1 publication Critical patent/CA2189461A1/en
Application granted granted Critical
Publication of CA2189461C publication Critical patent/CA2189461C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Abstract

A passive transponder includes a receive antenna for receiving an input signal. A frequency generator and modulator receives the input signal and outputs a data carrier signal having a frequency independent of the input signal frequency. A
programmable memory and thermistor are provided to produce user ID
data and temperature data which is combined with the output signal.
CA002189461A 1990-08-03 1991-08-02 System monitoring programmable implantable transponder Expired - Fee Related CA2189461C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US07/562,300 1990-08-03
US07/562,300 US5252962A (en) 1990-08-03 1990-08-03 System monitoring programmable implantable transponder
CA002048385A CA2048385C (en) 1990-08-03 1991-08-02 System monitoring programmable implantable transponder

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
CA002048385A Division CA2048385C (en) 1990-08-03 1991-08-02 System monitoring programmable implantable transponder

Publications (2)

Publication Number Publication Date
CA2189461A1 true CA2189461A1 (en) 1992-02-04
CA2189461C CA2189461C (en) 2002-02-05

Family

ID=25674720

Family Applications (2)

Application Number Title Priority Date Filing Date
CA002189462A Expired - Fee Related CA2189462C (en) 1990-08-03 1991-08-02 System monitoring programmable implantable transponder
CA002189461A Expired - Fee Related CA2189461C (en) 1990-08-03 1991-08-02 System monitoring programmable implantable transponder

Family Applications Before (1)

Application Number Title Priority Date Filing Date
CA002189462A Expired - Fee Related CA2189462C (en) 1990-08-03 1991-08-02 System monitoring programmable implantable transponder

Country Status (1)

Country Link
CA (2) CA2189462C (en)

Also Published As

Publication number Publication date
CA2189461C (en) 2002-02-05
CA2189462C (en) 2002-03-26
CA2189462A1 (en) 1992-02-04

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed