Samsung Electronics Co., Ltd.

Samsung Display Co., Ltd.

Hewlett-packard Development Company, L.P.

Hyundai Motor Company

Hajen Co., Ltd

Jong-Hwa Park

Baek-Woon Lee

Myung-Koo Kang

Si-Duk Sung

Kwang-Sub Shin

Jong-Hyun Park

Jun-Young Lee

Sung-wook Kang

Jin-Hong Kim

Dong-Kyu Lee

Byung-Sik Koh

Young-chae Kim

Soong-Yong Joo

Ji-Won Moon

Jin-hong Kim

Hojin Jang

Seock-Cheon Song

Joo-Hwan Noh

Young-Kwang Kim

Seil Kwon

Dong-Yub Lee

Jung-Sun Lee

Yong-Nam Ahn

Suk-Ki Jung

Hyung-Seok Chang

Ki-Hyun Yoo

DaeHo Kim

Kyoung-In Cho

Lintao Zhang

Sung-Chul Park

Daeho Kim

A smart speaker for providing a sound service based on an artificial intelligence platform, while being communicatively connected to an external server is disclosed. The smart speaker includes a first transceiver for connection to a wireless local area network (WLAN), a second transceiver for connection to a mobile communication network, and a processor configured to control communication connection to the external server through the first transceiver in indoor mode, and control communication with the external server through the second transceiver in outdoor mode.

Smart speaker

A development cartridge includes a developer housing to receive a developer. The developer housing includes a developing chamber to have a developing roller in the developing chamber and extending in a longitudinal direction of the developing roller, an agitating chamber located parallel to the developing chamber, and a partition wall to separate the developing chamber from the agitating chamber, the partition wall having a first communication hole and a second communication hole respectively formed at both end portions of the partition wall in the longitudinal direction, through which the developing chamber and the agitating chamber are to communicate through. A developer inlet, through which the developer is injectable into the developer housing, for the developer housing to receive the developer, is formed in the developer housing at a position corresponding to the first communication hole or the second communication hole. The developer inlet is closeable with a cap.

Development cartridge with developer inlet for refilling developer and cap sealing developer inlet

A display device configured to display a selected image type, the image type including a first image and a second image, according to an image source signal, the display device including: a display unit, the display unit including a first group pixel and a second group pixel; and an image processor, the image processor: arranging image signals for each frame of the display device according to a display sequence of the first image and the second image in the first group pixel and the second group pixel, changing the image type displayed during a remaining period for each frame unit of the image source signal.

3D display device and methods thereof

An organic light emitting display device includes: a display panel; a timing controller configured to receive image data when a vertical sync signal is activated, to receive reference data corresponding to the image data when the vertical sync signal is deactivated, and to generate an emission control signal in accordance with emission duty information of the reference data; and an emission driver configured to supply first and second emission powers to the display panel, and to control a duration of a period during which a potential difference between the first and second emission powers is greater than or equal to a reference value in accordance with the emission control signal.

Organic light emitting display device including emission driver and driving method thereof

Provided is an electrophotographic image forming apparatus including: a toner buffer unit arranged between a toner cartridge and a developing unit to receive toner from the toner cartridge and supply the toner to the developing unit; and a toner level detection unit. The toner buffer unit includes a first buffer unit connected to the toner cartridge. A first conveyance member including a rotation shaft and a conveyance wing provided in the rotation shaft and transporting the toner in a radial direction is provided in the first buffer unit. The toner buffer unit includes an elevation plate provided in the first buffer unit and elevated according to a toner level, and a sensor unit detecting a location of the elevation of the elevation plate. The elevation plate is located to be spaced apart from the conveyance wing in an axial direction of the rotation shaft.

Toner buffer unit of an electrophotographic image forming apparatus

Typeface

Toner cartridge for a printer

The display device includes a display panel which includes a plurality of pixels, a gate driver which sequentially applies gate-on voltages to the plurality of pixels for a first period and a data driver which generates data voltages for at least two pixels of the plurality of pixels for the first period, and supplies the data voltages to the two pixels of the plurality of pixels, respectively, wherein an application order of the data voltages applied to the at least two pixels of the plurality of pixels is reversed in two adjacent frames.

Display device and driving method thereof

In a display apparatus and a driving method thereof, image data corresponding to plural different positions of a display panel are added to each other, and a sum of the image data of a present frame is compared with a sum of the image data of a previous frame to determine whether an image displayed on the display panel is a still image or not. While a still image is displayed, brightness of the display panel is gradually lowered. Accordingly, the display panel may prevent occurrence of afterimages and deterioration of organic electroluminescent light emitting devices, as well as reduce power consumption.

Display apparatus and method of driving the same

An array substrate includes a base substrate, a plurality of gate lines, a plurality of data lines and a pixel matrix. The plurality of gate lines and the plurality of data lines define pixel areas. The pixel matrix is formed on each pixel area, and includes a plurality of pixel columns and pixel rows. Each pixel column has a first pixel group and a second pixel group. The first pixel group is electrically connected to a first gate line adjacent to the pixel column. The second pixel group is electrically connected to a second gate line adjacent to the pixel column. Each pixel row is electrically connected to one data line adjacent to the pixel column.

Array substrate receiving two polarities opposite to each other and a display device having the same

Toner cartridge

An electrophotographic forming apparatus includes a light-emitting portion, a light-receiving portion, a waste toner sensing unit which is pivotably installed in a main body where the waste toner container is attachably and detachably mounted between the light-emitting portion and the light-receiving portion, intercepts light irradiated from the light-emitting portion when the waste, toner, container is not mounted in the main body, and does not intercept light when the waste toner container is mounted in the main body, such that a voltage output from the light-receiving portion is compared with a preset voltage and whether the waste toner container is mounted, the replacement time of the waste toner container can be sensed.

Apparatus and method for sensing waste toner in an electrophotographic image forming apparatus

A video controller in a graphic accelerators suitable for use in three dimensional graphics and texture mapping is disclosed. The controller includes an address generator for generating addresses for reading out texture data stored in the video memory and a mode register for generating a directional signal for prefetching the texture data. A prefetch controller is provided to produce an address for another texture data predicted to be used at the next time, based on the directional signal supplied from the mode register and the address of the address generator. Also provided are a memory controller for accessing the texture data corresponding to the address generated in the prefetch controller via the memory interface, and a buffer memory for storing the prefetched texture data outputted from the memory controller and the address of the prefetched texture data. Further, the prefetching method comprises the steps of determining whether the address generated at the address generator is identical with the one stored in the buffer memory; outputting the texture data stored in the buffer memory if said two addresses are identical and determining whether prefetching of the texture data is possible; addressing the texture data corresponding to the address provided by the address generator, if two addresses are not identical; prefetching a texture data predicted to be used next time in the video memory based on the directional signal supplied from the mode register and the address supplied from the address generator, if the prefetching is possible; and storing the prefetched texture data and its corresponding address into the buffer memory. The video controller of this invention considerably reduces the time required for accessing the video memory since prefetched texture data is read out in the internal buffer register without accessing the same in the outer video memory.

Apparatus and method for prefetching texture data in a video controller

Growing community of inventors

Seoul, South Korea

Jong-Hwa Park