System monitoring programmable implanatable transponder
First Claim
1. A passive transponder comprising encapsulation means including therein receive antenna means for receiving an input signal from a signal source outside of said encapsulation means, and transmit antenna means for transmitting an output signal to said signal source, programmable memory means for storing data received by said transponder from said signal source, said programmable memory means being programmed in response to said input signal after completion of manufacture of said transponder, said programmable memory means having a plurality of memory addresses and said programmable memory means outputting an inhibit signal to prevent said input signal from reprogramming said memory means once each of said addresses has been accessed during programming;
- said output signal including said data stored by said programmable memory means, and said output signal being generated in response to said input signal; and
data sequencing means;
said data sequencing means receiving said input signal and said inhibit signal and generating a divided input signal having a frequency substantially less than said frequency of said input signal and sequentially accessing said programmable memory means at said input signal frequency when said inhibit signal is present and sequentially accessing said programmable memory means at said divided input signal frequency when said inhibit signal is not present.
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Accused Products
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.
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Citations
11 Claims
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1. A passive transponder comprising encapsulation means including therein receive antenna means for receiving an input signal from a signal source outside of said encapsulation means, and transmit antenna means for transmitting an output signal to said signal source, programmable memory means for storing data received by said transponder from said signal source, said programmable memory means being programmed in response to said input signal after completion of manufacture of said transponder, said programmable memory means having a plurality of memory addresses and said programmable memory means outputting an inhibit signal to prevent said input signal from reprogramming said memory means once each of said addresses has been accessed during programming;
- said output signal including said data stored by said programmable memory means, and said output signal being generated in response to said input signal; and
data sequencing means;
said data sequencing means receiving said input signal and said inhibit signal and generating a divided input signal having a frequency substantially less than said frequency of said input signal and sequentially accessing said programmable memory means at said input signal frequency when said inhibit signal is present and sequentially accessing said programmable memory means at said divided input signal frequency when said inhibit signal is not present. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
- said output signal including said data stored by said programmable memory means, and said output signal being generated in response to said input signal; and
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10. A passive transponder comprising encapsulation means including therein receive antenna means for receiving an input signal from a signal source outside of said encapsulation means, and transmit antenna means for transmitting an output signal to said signal source, programmable memory means for storing data received by said transponder from said signal source, said programmable memory means being programmed in response to said input signal after completion of manufacture of said transponder, said programmable memory means having a plurality of memory addresses and said programmable memory means outputting an inhibit signal to prevent said input signal from reprogramming said memory means once each of said addresses has been accessed during programming;
- said output signal including said data stored by said programmable memory means, and said output signal being generated in response to said input signal; and
frequency generator and modulator means for receiving said input signal, and outputting a frequency for said output signal and outputting said output signal in response thereto, said input signal having a first frequency, said output signal having a second frequency, said second frequency being a multiple of said first frequency, said second frequency being greater than said first frequency. - View Dependent Claims (11)
- said output signal including said data stored by said programmable memory means, and said output signal being generated in response to said input signal; and
Specification