Samsung Electronics Co., Ltd.

Sung Jin Jung

Seoung Jae Yoo

Long Yan

Yun-Cheol Han

A photoplethysmography sensor that includes a photoelectric conversion element including a first terminal and a second terminal, and that receives light reflected from a blood vessel and generates a current corresponding to the received light, a current-to-voltage converter that receives the generated current through a first input terminal and a second input terminal, and generates an output voltage corresponding to the received current, and a switch that, in response to a control signal of a first level, connects the first and second terminals of the photoelectric conversion element respectively to the first and second input terminals of the current-to-voltage converter and in response to the control signal of a second level different from the first level, connects the first and second terminals of the photoelectric conversion element respectively to the second and first input terminals of the current-to-voltage converter.

Growing community of inventors

Hwaseong-si, South Korea

Sung Jin Jung