The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Mar. 16, 2021

Filed:

Feb. 13, 2017
Applicant:

Nippon Telegraph and Telephone Corporation, Tokyo, JP;

Inventors:

Nobuaki Matsuura, Tokyo, JP;

Kei Kuwabara, Tokyo, JP;

Takayuki Ogasawara, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61B 5/04 (2006.01); A61B 5/024 (2006.01); A61B 5/0408 (2006.01); A61B 5/0456 (2006.01); A61B 5/0245 (2006.01); A61B 5/0452 (2006.01); A61B 5/0468 (2006.01); A61B 5/00 (2006.01);
U.S. Cl.
CPC ...
A61B 5/04012 (2013.01); A61B 5/0245 (2013.01); A61B 5/0452 (2013.01); A61B 5/0456 (2013.01); A61B 5/02405 (2013.01); A61B 5/0408 (2013.01); A61B 5/0468 (2013.01); A61B 5/7203 (2013.01);
Abstract

There is provided a heartbeat detection device. The heartbeat detection device includes a time difference value calculation unit () configured to calculate a time difference value of sampling data of an electrocardiographic waveform, FIFO buffers (--) configured to receive the time difference value, a FIFO buffer (-) configured to receive an output from the FIFO buffer (-), a FIFO buffer (-) configured to receive an output from the FIFO buffer (-), a minimum value detection unit () configured to detect, for each sampling time, a minimum value M out of the time difference value stored in the FIFO buffer (-) and the time difference value stored in the FIFO buffer (-), and a heartbeat time determination unit () configured to set, when a difference value M−a between the minimum value M and an output value a of the FIFO buffer (-) is equal to or greater than a threshold, sampling time of the output value a as heartbeat time.


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