Implantable homing device
First Claim
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1. In an implantable homing device having a transmitter, and a source of power connected to apply operating current to said transmitter;
- the improvement wherein said source of power comprises oscillator means, a battery connected to energize said oscillator means, means applying the output of said oscillator means to said transmitter as a source of operating current therefor, whereby said transmitter is intermittently operated, said transmitter comprising an oscillator and a programmable signal generator connected to provide a programmable output coded signal for modulating said oscillator, and means responsive to the voltage of said battery for controlling said programmable generator, whereby the output of said transmitter is modulated as a function of the voltage of said battery.
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Abstract
A new apparatus for location and monitoring of humans has been developed. The device employs a unique programmable signal generator and detection system to locate and monitor the movement of individuals. It additionally utilizes a physiological monitoring system to signal a warning for the necessity for immediate help. The device is small enough to be implanted in young children as well as adults. The power supply and signal generator are designed to function at a low duty cycle for prolonged periods before recharging.
159 Citations
16 Claims
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1. In an implantable homing device having a transmitter, and a source of power connected to apply operating current to said transmitter;
- the improvement wherein said source of power comprises oscillator means, a battery connected to energize said oscillator means, means applying the output of said oscillator means to said transmitter as a source of operating current therefor, whereby said transmitter is intermittently operated, said transmitter comprising an oscillator and a programmable signal generator connected to provide a programmable output coded signal for modulating said oscillator, and means responsive to the voltage of said battery for controlling said programmable generator, whereby the output of said transmitter is modulated as a function of the voltage of said battery.
- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. In an implantable homing device having a tranmitter, and a source of power connected to apply operating current to said transmitter;
- the improvement wherein said source of power comprises oscillator means, a battery connected to energize said oscillator means, means applying the output of said oscillator means to said transmitter as a source of operating current therefor, whereby said transmitter is intermittently operated, said transmitter comprising an oscillator and a programmable signal generator connected to provide a programmable output coded signal for modulating said oscillator, monitor means connected to said programmable signal generator and responsive to determined stimulus, whereby said transmitter is modulated as a function of said stimulus, and means coupling said monitor means to said oscillator means for controlling the frequency of oscillation thereof, whereby the rate of output of said device is varied in response to said stimulus.
- View Dependent Claims (16)
Specification