Method and system for controlling amplified signals reflecting physiological characteristics
First Claim
Patent Images
1. A control system for controlling amplified signals in an instrument system, comprising:
- an amplifier system that is adapted to receive and amplify input signals, said amplified signals having a signal baseline;
filter means in communication with said amplifier system for filtering said amplified signals; and
a hold circuit in communication with said amplifier system and said filtering means, said hold circuit including detection means for detecting the presence of an overload signal, said overload signal comprising an amplified signal having an amplitude that is above an upper voltage threshold or below a lower voltage threshold, and abatement means for abating transmission of said overload signal through said filter means upon detection thereof.
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Abstract
A method for controlling amplified signals in a medical diagnostic device having an amplifier system that is adapted to amplify input signals having a baseline and filter means for filtering the amplified signals, comprising the detection of the presence of an amplified signal having an amplitude that is above an upper voltage threshold or below a lower voltage threshold, and freezing the baseline of the amplified signal upon the detection thereof.
12 Citations
64 Claims
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1. A control system for controlling amplified signals in an instrument system, comprising:
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an amplifier system that is adapted to receive and amplify input signals, said amplified signals having a signal baseline; filter means in communication with said amplifier system for filtering said amplified signals; and a hold circuit in communication with said amplifier system and said filtering means, said hold circuit including detection means for detecting the presence of an overload signal, said overload signal comprising an amplified signal having an amplitude that is above an upper voltage threshold or below a lower voltage threshold, and abatement means for abating transmission of said overload signal through said filter means upon detection thereof. - View Dependent Claims (3, 5, 8, 9, 12)
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15. A control system for controlling amplified signals in a medical diagnostic device, the device including an amplifier system that is adapted to receive and amplify input signals, and filter means for filtering the amplified signals, the control system comprising:
a hold circuit in communication with the amplifier system and filtering means, said hold circuit including first detection means for detecting the presence of an overload signal, said overload signal comprising an amplified signal having an amplitude that is above an upper voltage threshold in the range of approximately 200-300 mV +/−
10% or below a lower voltage threshold in the range of approximately −
200 to −
300 mV +/−
10%, and abatement means for abating transmission of said overload signal through the filter means upon detection thereof.- View Dependent Claims (22, 29, 32)
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36. A control system for controlling amplified signals in a medical diagnostic device, the device including an amplifier system that is adapted to receive and amplify input signals, and filter means for filtering the amplified signals, the control system comprising:
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a hold circuit in communication with the amplifier system and filtering means, said hold circuit including first detection means for detecting the presence of an overload signal, said overload signal comprising an amplified signal having an amplitude that is above an upper voltage threshold or below a lower voltage threshold, and abatement means for abating transmission of said overload signal through the filter means upon detection thereof; and a reset circuit that is adapted to reset the filter means when said overload signal amplitude is above said upper voltage threshold or below said lower voltage threshold for an overload signal time period that exceeds an overload signal duration threshold. - View Dependent Claims (52)
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56. A method for controlling amplified signals in a medical diagnostic device, the device including an amplifier system that is adapted to receive and amplify input signals having a baseline, and filter means for filtering the amplified signals, the method comprising the steps of:
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detecting the presence of an overload input signal, said overload input signal comprising an amplified signal having an amplitude that is above an upper voltage threshold or below a lower voltage threshold; and freezing the baseline of said overload signal upon said detection thereof. - View Dependent Claims (57, 58, 59, 60, 61, 64)
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62-63. -63. (canceled)
Specification