Lg Electronics Inc.

Skhynix Inc.

Korea Advanced Institute of Science and Technology

Wooyoung Kim

Kyungchul Woo

Sangheon Lee

Sooyoung Oh

Myonghun Im

Moonhee Hong

Jaehyun Kim

Youngho Kim

Jongmin Lee

Jaewon Chang

Changoh Kim

Byeonghun Yu

Honghee Park

Sehwon Ahn

Bosung Seo

Rayoung Park

Dongjoo You

Youngook Song

Seyoun Moon

Hyunho Kim

Incheol Park

Sanggu Jo

A scroll compressor is provided that may include an orbiting scroll, a non-orbiting scroll, a back pressure chamber assembly, a back pressure passage, and a flow resistance portion. The back pressure passage may provide communication between a compression chamber and a back pressure chamber, and the flow resistance portion may be disposed at a middle portion of the back pressure passage to reduce an amount of refrigerant flowing through the back pressure passage. This may reduce a substantial cross-sectional area of the back pressure passage while improving machining of the back pressure passage, thereby decreasing an amount of refrigerant flowing between the compression chamber and the back pressure chamber. Accordingly, pressure pulsation in the back pressure chamber may be lowered and sealing stability between the orbiting scroll and the non-orbiting scroll may be enhanced, thereby improving compression performance.

Scroll compressor

A scroll compressor may include a back pressure passage that provides communication between a compression chamber and a back pressure chamber to guide refrigerant compressed in the compression chamber partially to the back pressure chamber. The back pressure passage may communicate with the compression chamber through a front end surface of a non-orbiting wrap axially facing an orbiting end plate. Accordingly, when an orbiting scroll tilts, the non-orbiting wrap may be spaced apart from the orbiting end plate to open a scroll back pressure hole, such that the compression chamber and the back pressure chamber communicate with each other to quickly vary pressure in the back pressure chamber to be adaptive to the pressure of the compression chamber. This may result in appropriately adjusting back pressure in the back pressure chamber according to an operating mode and/or operating conditions, thereby increasing a sealing power and suppressing or preventing excessive contact.

A Reed Solomon decoder may include a syndrome calculation (SC) circuit, a key equation solver (KES) circuit, and a Chien search and error evaluation (CSEE) circuit. The SC circuit calculates a syndrome from a codeword. The KES circuit includes a plurality of sub-KES circuit and calculates an error location polynomial and an error evaluation polynomial from the syndrome. The CSEE circuit calculates an error location and an error value from the error location polynomial and the error evaluation polynomial. Each of the plurality of sub-KES circuits, the SC circuit and the CSEE circuit respectively constitute pipeline stages. The Read Solomon decoder may also include a FIFO queue that queues the codeword among a plurality of codewords sequentially received, and an error correction circuit that produces error corrected data using an output from the FIFO queue, the error location, and the error value.

Reed solomon decoder and semiconductor device including the same

A drum type washing machine includes: a tub installed in the interior of a main body and accommodating a rotary drum; a spring installed between an upper portion of the tub and the side of the main body; and a weight detection module installed between the tub and the main body, wherein the weight detection module includes a detection unit to detect the load of the tub; and a transmission unit to transmit data detected by the detection unit to a controller.

Washing machine and method for controlling washing machine

Provided is a washing machine. The washing machine includes a cabinet, a drum, and a whirling nozzle. The cabinet defines the exterior. The drum is provided in the cabinet, and rotates with laundry held therein. The whirling nozzle changes wash water into whirling water to spray the whirling water into the drum.

Method for washing and washing machine

A laundry treating apparatus, e.g., washing machine, and a tub provided in the cabinet. A drum is rotatably provided in the tub for receiving laundry, and a gasket is provided between the cabinet and the tub. A plurality of spray nozzles are provided at the gasket for spraying wash water into the drum.

Laundry treating apparatus

Provided is a method for washing laundry in a washing machine, wherein the washing machine includes a tub and a drum disposed inside the tub, the method comprising: supplying wash water into the tub; rotating the drum such that the laundry is attached the drum and spraying the wash water changed to whirling water into the drum; and draining the wash water from the tub.

Washing machine

A plasma deposition apparatus and a method of manufacturing a thin film using the same are disclosed. The method of manufacturing a thin film includes introducing a process gas in a reaction chamber of a plasma deposition device, the reaction chamber including a first electrode and a second electrode. The method further includes applying, by a first power supply unit, a first pulsed RF signal to one of the first and second electrodes, and applying, by a second power supply unit, a second pulsed RF signal to one of the first and second electrodes. The first pulsed RF signal and the second pulsed RF signal are applied based on a predetermined deposition variable.

Plasma deposition of a thin film

Growing community of inventors

Seoul, South Korea

Wooyoung Kim