Pulse rate monitor
First Claim
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1. Apparatus for monitoring the pulse rate of a subject, said apparatus comprising:
- a first unit means having an oscillator adapted to be proximate said subject and drawing supply current in accordance with the subject loading thereon, said unit means providing a pulsating DC signal in accordance with the pulse rate of said subject;
a cable coupled to said first unit means to receive said pulsating DC signal and to convey a supply voltage to said first unit means; and
a second unit means adapted to be placed distant from said subject and coupled to said cable for receiving and amplifying said pulsating DC signal and to provide said voltage to said cable and thus to said first unit means.
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Abstract
A pulse rate monitor comprises first and second units coupled by a cable. The first unit has a microwave ocillator that provides a pulsating DC signal in accordance with the pulse rate to the second unit which amplifies the signal. Since the first unit does not comprise microwave components other than the oscillator, it can be miniturized. The second unit also supplies power to the first unit.
16 Citations
8 Claims
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1. Apparatus for monitoring the pulse rate of a subject, said apparatus comprising:
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a first unit means having an oscillator adapted to be proximate said subject and drawing supply current in accordance with the subject loading thereon, said unit means providing a pulsating DC signal in accordance with the pulse rate of said subject; a cable coupled to said first unit means to receive said pulsating DC signal and to convey a supply voltage to said first unit means; and a second unit means adapted to be placed distant from said subject and coupled to said cable for receiving and amplifying said pulsating DC signal and to provide said voltage to said cable and thus to said first unit means. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification
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Current AssigneeGeneral Electric Company
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Original AssigneeRCA Corporation
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InventorsMawhinney, Daniel D., Milgazo, Henry F.
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Primary Examiner(s)NOT, DEFINED
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Assistant Examiner(s)Keegan, Timothy
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Application NumberUS07/003,167Time in Patent Office531 DaysField of Search128/633, 128/662, 128/687, 128/653, 128/661, 128/663US Class Current600/500CPC Class CodesA61B 5/024 Detecting, measuring or rec...A61B 5/0507 using microwaves or teraher...
