公开(公告)号：US20210294001A1

公开(公告)日：2021-09-23

申请号：US16911198

申请日：2020-06-24

Applicant: LG ELECTRONICS INC.

Inventor： Byeongkil KANG ,  Namhee KIM ,  Sungbum JOO ,  Dongjin LEE ,  Jeongho WOO

IPC: G02B3/14 ,  H04N5/225 ,  G02B27/64 ,  G02B26/00

Abstract: For improving AF performance, the mobile terminal includes a liquid lens, a storage configured to store a focal length based on applied voltages at two or more reference temperatures and a valid voltage range corresponding to a valid focal length range at the two or more reference temperatures, and a controller configured to perform compensation on the valid voltage range based on the temperature measured by the temperature sensor, wherein the controller is configured to perform shift-compensation on the valid voltage range when the measured temperature is greater than or equal to a first threshold temperature, a shift amount corresponding to the shift-compensation being a value obtained by applying an interpolation to a shift amount at the two or more reference temperatures, and perform extension-compensation on the valid voltage range when the measured temperature is less than the first threshold temperature.

公开(公告)号：US20210223873A1

公开(公告)日：2021-07-22

申请号：US17056680

申请日：2018-09-21

Applicant: LG ELECTRONICS INC.

Inventor： Jongpil KIM ,  Jinbum KIM ,  Joonwon BYUN ,  Jeongho WOO ,  Dongjin LEE ,  Sungbum JOO

IPC: G06F3/0354 ,  G02B7/02 ,  G02B5/18 ,  G02B3/04

Abstract: Provided is a pointing device having an optical module for coordinate tracking in order to solve the problem that a pointing device using the diffraction principle of light increases in size due to an optical module, wherein the optical module comprises: a light-emitting unit which irradiates light toward an outside surface; a lens unit provided between the light-emitting unit and the outside surface to refract and diffract the light; and a light receiving unit to which the light reflected from the outside surface through the lens unit reaches, wherein the light receiving unit comprises a detector which senses the reflected light, and a light receiving surface of the detector is inclined at a specific angle toward the optical axis of the light-emitting unit.

公开(公告)号：US20210306592A1

公开(公告)日：2021-09-30

申请号：US17257489

申请日：2018-07-03

Applicant: LG ELECTRONICS INC.

Inventor： Younghwan KWON ,  Gunshik SHIN ,  Jinsool LEE ,  Jeongho WOO ,  Sungbum JOO

IPC: H04N5/92 ,  H04N21/2343 ,  H04N19/114

Abstract: In order to address problems such as an increase in costs incurred when obtaining a slow motion and a time limit for video recording, an image processing apparatus is provided, the image processing apparatus comprising: an image sensor for obtaining a plurality of frames of an image which is to be recorded; an image signal processing unit for receiving the obtained plurality of frames from the image sensor and post-processing the received plurality of frames; an encoder for receiving, from the image signal processor, and encoding a first group of frames which are a part of the post-processed plurality of frames; and a buffer storage unit for receiving, from the image signal processor, and storing a second group of frames which are another part of the post-processed plurality of frames, wherein the encoder receives the second group of frames from the buffer storage unit and performs encoding so as to generate an image including the first group of frames and the second group of frames.

公开(公告)号：US20210208695A1

公开(公告)日：2021-07-08

申请号：US17056620

申请日：2018-10-11

Applicant: LG ELECTRONICS INC.

Inventor： Joonwon BYUN ,  Jongpil KIM ,  Jinbum KIM ,  Gunshik SHIN ,  Jeongho WOO ,  Sungbum JOO

IPC: G06F3/03 ,  G06F3/038

Abstract: Provided is a pointing device in the form of a direct signal generation pen, for recognizing handwriting on any outer surface in order to solve an error of handwriting trajectory generated by the rotation of a pen, the pointing device comprising: an optical module for irradiating light on the outer surface and receiving reflected light so as to sense the frequency of the reflected light; an inertial sensor for sensing the movement, rotation, and azimuth of the pointing device; and a calculation unit for setting a reference coordinate system having handwriting direction information on the basis of a sensing value of the optical module or the inertial sensor, and recognizing first handwriting information on the basis of the set reference coordinate system.