Patent US9072437

Method, apparatus and computer program product for detecting heart rate
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US9072437

1. A method, comprising: (7) (3)

retrieving a signal comprising overlapping adjacent heart beat impulses mixed with each other;

creating a heart beat model of the shape of an original non-mixed single heart beat impulse by applying a representation of the retrieved signal as a summation of original non-mixed single heart beat impulses at known positions; and

using the created heart beat model to detect heart beats.

2. The method of claim 1, wherein the mixing of heart beat impulses in the retrieved signal in said heart beat model creation is described as a system of linear equations. (1) (0)

4. The method of claim 1, wherein the signal measures mechanical activity of a cardiac system. (0)

5. The method of claim 1, further comprising utilizing information about a respiratory cycle to detect heart beats. (0)

6. The method of claim 1, wherein the signal is a ballistocardiography signal. (0)

7. The method of claim 1, wherein the signal is a signal from a force sensor. (0)

8. The method of claim 1, comprising outputting data directly or indirectly indicative of a heart beat rate. (0)

17. A non-transitory computer readable medium having stored thereon a computer program executable in an apparatus, and when executed configured to implement the method of claim 1. (0)

9. An apparatus, comprising: (5) (3)

a processing unit configured to retrieve a signal comprising overlapping adjacent heart beat impulses mixed with each other, the processing unit being further configured to:

create a heart beat model of the shape of an original non-mixed single heart beat impulse by applying a representation of the retrieved signal as a summation of original non-mixed single heart beat impulses at known positions; and

the processing unit being further configured to detect heart beats using the created heart beat model.

10. The apparatus of claim 9, wherein the processing unit is configured to describe the mixing of heart beat impulses in the retrieved signal in said heart beat model creation as a system of linear equations. (1) (0)

12. The apparatus of claim 9, wherein the apparatus is configured to output data directly or indirectly indicative of a heart beat rate. (0)

13. The apparatus of claim 9, wherein the apparatus is configured to utilize information about a respiratory cycle to detect heart beats. (0)

14. The apparatus of claim 9, wherein the signal measures mechanical activity of a cardiac system. (0)

15. The apparatus of claim 9, wherein the signal is a ballistocardiography signal. (0)

16. A non-transitory computer readable medium having stored thereon a computer program executable in an apparatus, the computer program comprising: (0) (1)

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Patent US9072437

Method, apparatus and computer program product for detecting heart rate

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