Samsung Electronics Co., Ltd.

Kyunghyun Son

Dongkyun Kim

Tatsuhiro Otsuka

Changgyun Shin

Jinmyoung Kim

Jaechul Park

Dongjae Shin

Hyunil Byun

Jisan Lee

A light detection and ranging (LIDAR) device includes: a photodiode configured to generate a current in response to an optical signal being input to the photodiode; a current-voltage conversion circuit configured to convert the current into a voltage; an N-type ring voltage controlled oscillator (RVCO) configured to output a first pulse signal when the voltage is input to the N-type RVCO; a P-type RVCO configured to output a second pulse signal when the voltage is input to the P-type RVCO; and a processor configured to estimate an intensity of the optical signal by identifying, based on the first pulse signal and the second pulse signal, a digital signal value corresponding to the voltage.

LIDAR device and method of operating the same

A method of generating a finger image includes determining a quantity of electric charge to be removed from each of a plurality of detection circuits connected to a fingerprint sensor, based on an amplifier characteristic of each of the plurality of detection circuits; obtaining a second electrical quantity by removing the quantity of electric charge from a first electrical quantity that is input to each of the plurality of detection circuits; integrating the second electrical quantity to obtain an integrated value; and generating the fingerprint image based on comparison between the integrated value of the second electrical quantity and a predetermined threshold value.

Method of generating fingerprint image and fingerprint sensor

A fingerprint sensing system obtains a fingerprint image of a user by analyzing a partial image sensed with respect to a portion of a fingerprint region of the user, determining a sensing resolution based on a fingerprint pitch of the analyzed partial image, and sensing the fingerprint region with a determined sensing resolution.

Method of operating fingerprint sensing system, and fingerprint sensing system

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Seongnam-si, South Korea

Kyunghyun Son