公开(公告)号：US20190386351A1

公开(公告)日：2019-12-19

申请号：US16555234

申请日：2019-08-29

Applicant: LG ELECTRONICS INC.

Inventor： Sunok KIM ,  Jaemin Park ,  Youngjung Suh ,  Byounggyo Ahn ,  Youngkyu Cho

IPC: H01M10/42 ,  H01M10/44 ,  H02J7/00

Abstract: The present disclosure relates to charging a battery included in a robot. Standard deterioration cost information may be determined and stored based on an ambient temperature, a current rate, and a depth of discharge. This may include determining one standard deterioration cost information from among the stored standard deterioration cost information based on an ambient temperature of the robot and a current rate during an operation of the robot, and determining at least one depth of discharge at which the standard deterioration cost is equal to or less than a predetermined threshold based on the determined one standard deterioration cost information. The operation may be performed by repeating a process of charging and discharging the battery by a charge and discharge method based on the at least one depth of discharge.

公开(公告)号：US11233280B2

公开(公告)日：2022-01-25

申请号：US16555234

申请日：2019-08-29

Applicant: LG ELECTRONICS INC.

Inventor： Sunok Kim ,  Jaemin Park ,  Youngjung Suh ,  Byounggyo Ahn ,  Youngkyu Cho

IPC: H01M10/44 ,  H01M10/42 ,  H02J7/00

Abstract: The present disclosure relates to charging a battery included in a robot. Standard deterioration cost information may be determined and stored based on an ambient temperature, a current rate, and a depth of discharge. This may include determining one standard deterioration cost information from among the stored standard deterioration cost information based on an ambient temperature of the robot and a current rate during an operation of the robot, and determining at least one depth of discharge at which the standard deterioration cost is equal to or less than a predetermined threshold based on the determined one standard deterioration cost information. The operation may be performed by repeating a process of charging and discharging the battery by a charge and discharge method based on the at least one depth of discharge.

公开(公告)号：US09620164B2

公开(公告)日：2017-04-11

申请号：US14908472

申请日：2014-08-12

Applicant: LG ELECTRONICS INC.

Inventor： Nakyeong Kim ,  Byounggyo Ahn

IPC: G11B7/0065 ,  G11B7/1365 ,  G11B7/1372 ,  G11B7/135 ,  G11B7/1356 ,  G11B7/1362 ,  G11B7/0037 ,  G11B7/00 ,  G11B7/085 ,  G11B7/1378

CPC classification number: G11B7/1365 ,  G03H2210/22 ,  G03H2222/31 ,  G11B7/0037 ,  G11B7/0065 ,  G11B7/08564 ,  G11B7/135 ,  G11B7/1356 ,  G11B7/1362 ,  G11B7/1372 ,  G11B7/1378 ,  G11B2007/0009 ,  G11B2007/00656 ,  G11B2007/13727

Abstract: Provided is a holographic data storage system characterized by including: a first polarizing beam splitter (PBS), wherein at least either of a first lens module and a second lens module transmits P-polarized light and reflects S-polarized light; a relay lens collecting light passing through the first PBS; a mirror reflecting the light collected through the relay lens back to the relay lens; and a quarter wave plate located between a second PBS beam splitter and the relay lens, converting transmitted linearly polarized light into circularly polarized light, and converting the circularly polarized light into linearly polarized light. By reducing the volume of the relay lens, it is possible to decrease the size of the holographic data storage system, and by decreasing the number of lenses, it is possible to lower manufacturing costs.