Samsung Electronics Co., Ltd.

Lg Electronics Inc.

Sunghyuk Park

Kyoungsuk Ko

Byungjin Kim

Koh Choi

Sungchan Cho

Jongsoo Noh

Mooseong Bae

Jin-woo Cho

Seong-taek Lim

Ji-Hyuk Lim

Sungsuk Kang

Jihye Park

Jeonghwan Yoon

Subong Hong

Jaeryong Kim

Yanghee Cho

Myunghwan Ha

Sungkwang Oh

Kyechul Lee

A scroll compressor is provided. The scroll compressor includes a fixed scroll, an orbiting scroll configured to orbit with respect to the fixed scroll and including an orbiting end plate, and a main frame to which the orbiting scroll is coupled to orbit. The scroll compressor includes a compression chamber in which a refrigerant is compressed by the fixed scroll and the orbiting scroll, and a first back pressure chamber and a second back pressure chamber provided to communicate with the compression chamber. The first back pressure chamber and the compression chamber communicate with each other through a first flow path. The second back pressure chamber and the compression chamber communicate with each other through a second flow path. A different intermediate back pressure is formed in the first back pressure chamber and the second back pressure chamber.

Scroll compressor having separate flow paths in communication with different back pressure chambers

Provided is a scroll compressor capable of expanding a compression space and accordingly increasing a design volume ratio. The scroll compressor includes: a main body; a fixed scroll fixed inside the main body; an orbiting scroll orbiting the fixed scroll; and a plurality of compressing portions respectively provided in the fixed scroll and the orbiting scroll, wherein each compressing portion includes a circular arc portion of which a curvature is constant, a curved portion positioned in an inside of the circular arc portion and spaced a preset distance from the circular arc portion, and a connection portion connecting the circular arc portion to the curved portion, wherein a curvature of the connection portion changes from the first circular arc portion to the second circular arc portion.

Scroll compressor

The vacuum cleaner includes a cleaner body including a wheel for moving and a wheel motor for driving the wheel, a suction hose connected to the cleaner body, a handle connected to the suction hose, at least one detection sensor disposed in the suction hose to detect an inclination of the suction hose, and a controller controlling the wheel motor on the basis of the inclination of the suction hose detected by the at least one detection sensor.

Vacuum cleaner

According to one embodiment of the present invention, a method for controlling a mobile device capable of communicating with a digital device comprises the steps of: transmitting a first pointing signal to a first virtual region; displaying an identification (ID) capable of identifying the digital device positioned in the first virtual region; transmitting a second pointing signal to a second virtual region; and transmitting, to the digital device, a command for executing a specific function of the digital device, with reference to a memory.

Mobile device and method for controlling mobile device

A mobile terminal includes a wireless communication unit; a camera; a display; an ultrasound transmission unit; and a controller configured to control the wireless communication unit, the camera, the display, and the ultrasound transmission unit. The mobile terminal is configured to: transmit a first detection prepare request signal to allow a plurality of external devices located within a control area to switch to a prepare state; acquire an image including at least one of the plurality of external devices that switches to the prepare state; selectively transmit an ultrasound signal to the at least one of the plurality of external devices included in the image; receive associated control information from each of the at least one of the plurality of external devices; and display a graphic image related to the associated control information from each of the at least one of the plurality of external devices.

Mobile terminal and control system

A touch panel and an electronic device including the same are provided. The touch panel includes a first substrate, a second substrate, an electro-rheological fluid, a sensor, and a controller. The second substrate is spaced apart from the first substrate by a gap and includes a touch surface. The electro-rheological fluid is filled in a gap between the first substrate and the second substrate. The sensor senses an input on the touch surface and determines an input location at which the input occurs, and the controller varies a viscosity of the electro-rheological fluid in a location corresponding to a peripheral region of the input location.

Touch panel and electronic device including the same

An ultrasonic motor includes a fixed member including a surface, a movable member positioned to face the surface of the fixed member, and an actuator to cause at least a portion of the movable member to contact the surface of the fixed member and cause the movable member to move relative to the fixed member.

Ultrasonic motor and conveying apparatus having the same

Growing community of inventors

Seoul, South Korea

Sunghyuk Park