Portable electronic device and heart rate sensing method of the same
AssigneeEminent Electronic Technology Corp. Ltd.
InventorsTom Chang, Kao-Pin Wu, Chih-Jen Fang, Yuan-Shun Yeh, Wei-Te Hsu, De-Cheng Pan
Life of this patent
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Abstract
A portable electronic device uses the initial heartbeat value to calculate a possible heartbeat variation. Then a reference range is determined. Only the real time heartbeat value falling in the reference range is output as a correct real time heartbeat value. Thus, the too large or too small erroneous heartbeat values influenced by the vibration noise are eliminated to precisely output the correct real time heartbeat value. Therefore, the extra vibration sensors need not to be installed to lower the cost and to reduce the volume.
Claims28
A sensing method for a real time heartbeat value comprising steps of:
- (a) obtaining an initial heartbeat value;
- (b) setting a reference range based on the initial heartbeat value;
- (c) obtaining a real time heartbeat value;
- and
- (d) determining whether the real time heartbeat value falls into the reference range;
- when the real time heartbeat value falls into the reference range, the real time heartbeat value is output;
- when the real time heartbeat value does not fall into the reference range, the real time heartbeat value is not output.
A portable electronic device comprising:
- a first light source providing a first beam;
- a light detector comprising at least one light detecting unit, wherein the light detector detects a reflected light generated from the first beam of the first light source emitting to a user's body, and then a blood detecting signal is generated based one the reflected light;
- a control unit connecting to the first light source and the light detector and executing following steps:
- (a) obtaining an initial heartbeat value;
- (b) setting a reference range based on the initial heartbeat value;
- (c) obtaining a real time heartbeat value;
- and
- (d) determining whether the real time heartbeat value falls into the reference range;
- when the real time heartbeat value falls into the reference range, the real time heartbeat value is output;
- when the real time heartbeat value does not fall into the reference range, the real time heartbeat value is not output.
Dependencies are inferred from the claim text.