Lg Electronics Inc.

Sap Se

Jihwan Lim

Sangho Lee

Juchang Lee

Kyoungjoung Kim

Hyunhee You

Kyungho Lee

Myunggon Park

Sangkyu Kang

Jeonghoon Park

Hyunsik Yoon

YoungSeok Hwang

Yangsik Kim

Taesoon Kim

Methods, systems, and computer-readable storage media for receiving a capture file, the capture file including data representative of a workload executed in a source database system, and processing the capture file to provide a replay file, the replay file being in a format that is executable by a replayer to replay the workload in a target database system, processing the capture file including: processing the capture file to provide a set of intermediate files, and processing the set of intermediate files using in-memory merge sort operations to generate a set of replay files.

Preprocessing in database system workload capture and replay

A projector includes a light source configured to provide light, a digital micromirror device configured to form a video by selectively reflecting the light, a projection lens configured to enlarge and project the light reflected by the digital micromirror device onto a screen, and the actuator assembly disposed between the digital micromirror device and the projection lens and configured to allow the light incident on the projection lens from the digital micromirror device to travel straight or be refracted. The actuator assembly includes a first actuator including a first glass, and a second actuator including a second glass.

Projector and operating method thereof

An image projection apparatus according to an embodiment of the present invention senses the distance to an image projection area to which an image is projected, and determines an image projection state including a state of at least one of the image projection area and a space between the image projection apparatus and the image projection area, on the basis of the sensed distance. The image projection apparatus projects an image onto the image projection area on the basis of the determined image projection state.

Image projection apparatus and operation method thereof

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Seoul, South Korea

Jihwan Lim