US3835837A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Human pulse rate measuring apparatus
Assignee: PEEK DEVELOPMENT Inc
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Filing: 1972-09-13
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Granted: 1974-09-17
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Expires: 1992-09-13
Abstract
Abstract The specification describes a portable human pulse rate indicator and measuring apparatus which provides an indication of human pulse rate and a timing indication so that both absolute pulse rate and pulse rate changes may be detected. Noise immunity is provided by the use of an LDR detector having poor high frequency response and through the use of low pass filters. The sensor employed utilizes light passing through an extremity of the human hand to the LDR detector providing both accurate generation of the pulse signal and virtual elimination of the generation of artifacts.
Inventors
- 👤 S Peek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:35
CPC Classifications
A; A61; A61B; A61B5/00; A61B5/02; A61B5/024; A61B5/02416
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
162 words
Apparatus for measuring and indicating human pulse rate comprising transducer means for sensing the human pulse and generating an electrical signal in response to each sensed pulse; a portable housing, electrical circuitry in said housing connected to said transducer means, said electrical circuitry comprising battery means for supplying power to the electrical circuitry, ampLifier means connected to amplify the electrical signal from said transducer means and produce a first output signal in response thereto, timing means for producing a second output signal at fixed intervals of time, each such interval of time being a known fraction of a minute, the fraction having a numerator that is the numeral ''''1'''' and a denominator that is an integer; and signalling means responsive to said first and second signals for producing a first humanly sensible signal in response to each of said first output signals, and a second humanly sensible signal distinct from said first humanly sensible signal in response to said second output signal.
Claim 2
Dependent Claim
162 words
Apparatus for measuring and indicating human pulse rate comprising transducer means for sensing the human pulse and generating an electrical signal in response to each sensed pulse; a portable housing, electrical circuitry in said housing connected to said transducer means, said electrical circuitry comprising battery means for supplying power to the electrical circuitry, ampLifier means connected to amplify the electrical signal from said transducer means and produce a first output signal in response thereto, timing means for producing a second output signal at fixed intervals of time, each such interval of time being a known fraction of a minute, the fraction having a numerator that is the numeral ''''1'''' and a denominator that is an integer; and signalling means responsive to said first and second signals for producing a first humanly sensible signal in response to each of said first output signals, and a second humanly sensible signal distinct from said first humanly sensible signal in response to said second output signal.
Claim 3
Dependent Claim
61 words
switch means connected to said battery means for connecting and disconnecting said battery into and out of circuit relationship with said connector means whereby said battery means may be charged in one position of said switch means and whereby said battery means will supply power to the remaining circuitry of the device when said switch is in the other position; and
Claim 4
Dependent Claim
61 words
switch means connected to said battery means for connecting and disconnecting said battery into and out of circuit relationship with said connector means whereby said battery means may be charged in one position of said switch means and whereby said battery means will supply power to the remaining circuitry of the device when said switch is in the other position; and
Claim 5
Dependent Claim
24 words
a source of light located on said shield to direct light axially through an aperture in said shield through said portion of said hand;
Claim 6
Dependent Claim
24 words
a source of light located on said shield to direct light axially through an aperture in said shield through said portion of said hand;
Claim 7
Dependent Claim
120 words
The apparatus of claim 1 wherein said transducer means includes a light source and a photocell mounted on opposite sides of an enclosure, said enclosure having an aperture therein to receive an extremity of the human body wherein light from such source passes through said extremity to said photocell and wherein said amplifier means is connected to said photocell means for producing an amplified output of said photocell generated signal; and said signaling means produces audible signals and is connected to said amplifier output for producing a first signal upon the appearance of said amplifier output and to said timing means for producing output indications distinct from said first signals, said output indications having fixed intervals of time between them.
Claim 8
Dependent Claim
33 words
light responsive means mounted in another aperture in said shield responsive to the light emitted by said light source and changes in the degree of emission thereof caused by said human hand portion;
Claim 9
Dependent Claim
33 words
light responsive means mounted in another aperture in said shield responsive to the light emitted by said light source and changes in the degree of emission thereof caused by said human hand portion;
Claim 10
Dependent Claim
15 words
The apparatus of claim 2 wherein said amplifier means includes an integrated circuit operational amplifier.
Claim 11
Dependent Claim
142 words
operational amplifying means connected to receive the output of said light responsive means for amplifying said output; d. electrical charge and discharge means connected to the output of said amplifier for charging and discharging a capacitor when said capacitor reaches a predetermined charge to generate thereby a signal; e. speaker means connected to the charging and discharge of said discharge means; f. light emitting diode means connected to said charging and discharging means for rendering visible the signal generated upon discharge of said discharging means; g. free running oscillating means connected to such charging and discharging means and to said audible means for producing an audible signal upon a predetermined time interval initiated by the first discharge of said discharging means and; h. second light emitting diode means connected to said oscillating means for rendering visible the output of said ocsillating means.
Claim 12
Dependent Claim
142 words
operational amplifying means connected to receive the output of said light responsive means for amplifying said output; d. electrical charge and discharge means connected to the output of said amplifier for charging and discharging a capacitor when said capacitor reaches a predetermined charge to generate thereby a signal; e. speaker means connected to the charging and discharge of said discharge means; f. light emitting diode means connected to said charging and discharging means for rendering visible the signal generated upon discharge of said discharging means; g. free running oscillating means connected to such charging and discharging means and to said audible means for producing an audible signal upon a predetermined time interval initiated by the first discharge of said discharging means and; h. second light emitting diode means connected to said oscillating means for rendering visible the output of said ocsillating means.
Claim 13
Dependent Claim
47 words
electrical connector means coupled to said light responsively to transmit the electrical signal generated by said light responsive means; b. a portable housing having located thereon an electrical connector received in said electrical connection means; c. in said housing, electrical circuit connected to said electrical connector comprising:
Claim 14
Dependent Claim
47 words
electrical connector means coupled to said light responsively to transmit the electrical signal generated by said light responsive means; b. a portable housing having located thereon an electrical connector received in said electrical connection means; c. in said housing, electrical circuit connected to said electrical connector comprising:
Claim 15
Dependent Claim
12 words
A portable hand-held human pulse measuring device comprising: a. a transducer comprising:
Claim 16
Dependent Claim
12 words
A portable hand-held human pulse measuring device comprising: a. a transducer comprising:
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-09-16 | 1978-03-18 | 1978-09-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-16 | 1982-03-18 | 1982-09-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-16 | 1986-03-18 | 1986-09-17 | $7700.00 | Window Closed / Lapsed |