Title:
HEARTBEAT DETECTING METHOD AND HEARTBEAT DETECTING DEVICE
Document Type and Number:
WIPO Patent Application WO/2017/150156
Kind Code:
A1
Abstract:
A heartbeat detecting device comprises: a time difference value calculation unit (3) that calculates the time difference value for sampling data from an electrocardiogram waveform; a FIFO buffer (4-1) and a FIFO buffer (4-2) for which the time difference value serves as input; a FIFO buffer (4-3) for which the output of the FIFO buffer (4-2) serves as input; a FIFO buffer (4-4) for which the output of the FIFO buffer (4-3) serves as input; a minimum value detection unit (5) that detects the minimum value M from the time difference value stored in the FIFO buffer (4-2) and the time difference value stored in the FIFO buffer (4-4) at each sampling time; and a heartbeat time determination unit (6) that determines that the sampling time of an output value a is a heartrate time when the difference value M−a between the minimum value M and the FIFO buffer (4-1) output value a is equal to or greater than a threshold value.
Inventors:
MATSUURA NOBUAKI (JP)
KUWABARA KEI (JP)
OGASAWARA TAKAYUKI (JP)
KUWABARA KEI (JP)
OGASAWARA TAKAYUKI (JP)
Application Number:
PCT/JP2017/005124
Publication Date:
September 08, 2017
Filing Date:
February 13, 2017
Export Citation:
Assignee:
NIPPON TELEGRAPH & TELEPHONE (JP)
International Classes:
A61B5/352; A61B5/0245
Foreign References:
| JP2008104640A | 2008-05-08 | |||
| JPH0716214A | 1995-01-20 | |||
| JPH04341237A | 1992-11-27 |
Attorney, Agent or Firm:
YAMAKAWA,Shigeki et al. (JP)
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