Samsung Electro-mechanics Co., Ltd.

Il Kwon Chung

Jae Hyouck Choi

Joo Hyun Kim

Seung Seoup Lee

Jun Kyung Na

There are provided a fingerprint sensor and an electronic device including the same. The fingerprint sensor includes a glass panel; a plurality of transducers arranged on edge regions of the glass panel, the plurality of transducers emitting ultrasonic wave signals toward inner surfaces of the glass panel and receiving the ultrasonic wave signals reflected from the inner surfaces of the glass panel; and a fingerprint sensing unit sensing a fingerprint based on the ultrasonic wave signals received by the plurality of transducers, the fingerprint sensing unit sequentially driving the plurality of transducers.

Fingerprint sensor and electronic device including the same

There are provided a distance measurement apparatus and a distance measurement method, the distance measurement apparatus including: a light source outputting light; a switch array including a plurality of cells, and controlling a position at which the light output from the light source is irradiated, by switching operations of the respective cells; a light detector sensing the light reflected from a target object; and a controller sequentially controlling the switching operations of the plurality of cells of the switch array, wherein the controller generates distance information between the light source and the target object based on the light sensed by the light detector. The light detector including a single cell light detector element may be used, to thereby reduce the costs.

Distance measurement apparatus and method

There is provided a fingerprint detection sensor and a method of detecting a fingerprint. The fingerprint detection sensor according to embodiments of the present invention includes a plurality of piezoelectric sensors arranged on a two-dimensional plane; and a fingerprint detection unit detecting a fingerprint by using ultrasonic signals discharged from the plurality of respective piezoelectric sensors, wherein the fingerprint detection unit determines whether the fingerprint is a forged fingerprint by detecting bloodstreams within a first region on the two-dimensional plane in which the ultrasonic signals discharged from the plurality of respective piezoelectric sensors overlap one another.

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Gyunggi-do, South Korea

Il Kwon Chung