APPARATUS FOR SURVEYING AND INDICATING THE PHYSICAL EFFORT OF AN INDIVIDUAL

• US 3,863,626 A
• Filed: 12/13/1972
• Issued: 02/04/1975
• Est. Priority Date: 09/07/1972
• Status: Expired due to Term

• Current Assignee: Anton Huber
• Original Assignee: Anton Huber
• Inventors: Huber, Anton
• Primary Examiner(s): Kamm, William E.
• Application Number:
  US05/314,884
• Time in Patent Office: 783 Days
• Field of Search: 128/2.5P,2.5R,2.5T,2.6A,2.6F,2.6R
• US Class Current: 600/519
• CPC Class Codes: A61B 5/02455 provided with high/low alarm devices
• CPC Class Codes: A61B 5/6831 Straps, bands or harnesses

Abstract

Apparatus for surveying physical effort of a person includes means for sensing pulse rate and means for evaluating the measured pulse rate including regulatable threshold value measuring means adapted to produce a signal when the pulse rate reaches a limit value and indicating means responsive to such signal.

Claims

1. Apparatus for surveying the physical efforts of a person, said apparatus comprising pulse sensing means, means for generating impulses in response to outputs from said pulse sensing means, first and second monostable multivibrators having means for separately adjusting their respective delay times for establishing high and low limit frequencies and being connected to be actuated by said impulses, first and second gate circuit means each having a first input connected to receive said impulses and each having a second input connected, respectively, to an output of said first and second monostable multivibrators, a signally means andd means connecting said signalling means for adjustment of same according to the outputs from either of said gate circuits, said monostable multivibrators including means for maintaining both said gate circuits closed for the duration between their respective delay times.

2. Apparatus according to claim 1, characterized in that amplifier means (20, 21, 31, 33) amplifies the output of said pulse sensing means and feeds the amplified signals to said means for generating impulses.

3. Apparatus according to claim 2, wherein the input sensitivity of said amplifier means is between 0.20 and 1 mV.

4. Apparatus according to claim 3, wherein said input sensitivity is 0.5 mV.

5. Apparatus according to claim 2, characterized in that a frequency filter (32) is connected in series with said amplifier means (31) and after the same, the band width of the frequency filter lying between 0.66 Hz and 3.3 Hz.

6. Apparatus according to claim 2, characterized by means for adjusting the input sensitivity of said amplifier means (30, 21, 31, 33).

7. Apparatus according to claim 1, characterized in that said signalling means includes display means convert said outputs from said gate circuits into acoustic warning signals.

8. Apparatus according to claim 7, characterized in that said signalling means includes display means produce different distinguishable signals according to the limit frequency exceeded.

9. Apparatus according to claim 8 characterized in that, said signalling means includes display means produce as respective distinguishing features of the signals, a different number of acoustic signals per pulse beat.

10. Apparatus according to claim 8, characterized in that, said signalling means includes display means produce as respective distinguishing features of the signals, frequency variations of the same.

11. Apparatus according to claim 8 characterized in that said signalling means includes display means produce optical signals in one frequency range and acoustical signals in another frequency range.

12. Apparatus according to claim 1, characterized in that said indicating means comprise means produce an acoustical signal.

13. Apparatus according to claim 1, characterized in that said indicating means comprise means produce an optical signal.

14. Apparatus according to claim 1 wherein said signalling means includes a low frequency generator and display means connected to said generator.