Samsung Electronics Co., Ltd.

S-printing Solution Co., Ltd.

Tae-hee Kim

Dae-sik Kim

Kun-ho Cho

Hee-Joong Lee

Sung-yong Jung

Hee-seob Ryu

Dae-Sik Kim

Sergey Aleksandrovich Shestak

Yong-beom Lee

Yung-jun Park

Jun-il Sohn

Soo-Hyun Bae

Jae-young Choi

Min-Kyu Park

Jong-Chul Choi

Tae-hyeun Ha

Sung-dae Kim

Kye-hoon Lee

Yeong-Kyeong Seong

Pil-ho Yu

Sung-sik Kim

Hyun-Ki Baik

James H Burge

Tae-il Jung

Chong-Sam Chung

Byong-ki Lee

Dong-keun Lim

Pil-seung Oh

A development cartridge attachable to and detachable from a main body of an image forming apparatus includes a photosensitive unit including a photosensitive drum, a developing unit including a developing roller and rotatably coupled to the photosensitive unit with respect to a hinge axis, a driving gear configured to rotate in a first direction for a printing operation or a second direction opposite the first direction, a driving member positioned coaxially with the driving gear and configured to be rotated by the driving gear, a first one-way clutch configured to connect the driving member with the driving gear only when the driving gear rotates in the second direction, and a first moving member configured to be connected to the driving member so as to reciprocate between a first location where a development nip is formed and a second location where the development nip is released.

Development cartridge and electrophotographic image forming apparatus using the same

A multi-view video encoding apparatus and a method thereof are provided. The apparatus includes: a multi-view video input unit which receives a multi-view video; an I frame location determination unit which determines a location of an I frame which is a basis for encoding the multi-view video according to characteristics of multi-view frames at a predetermined time; and an encoding unit which encodes the multi-view video based on the determined location of the I frame. When the apparatus and the method are used, the location of the I frame, which is a basis for compression-encoding a multi-view video, can be adaptively determined and not fixed, thereby enhancing prediction efficiency and compression rates.

Multi-view video encoding apparatus and method

An apparatus and method for displaying a three-dimensional image according to the position of a user, in which the distance between a display panel displaying a two-dimensional image and a three-dimensional optical panel converting a two-dimensional image into a three-dimensional image is controlled in accordance with the position of the user to provide an optimized three-dimensional image. The apparatus includes a three-dimensional optical device converting a displayed two-dimensional image into a three-dimensional image, a position measurement module measuring the position of the user who converges on the three-dimensional image, a crosstalk calculator calculating the level of crosstalk that can occur in the position of the user, and a driver adjusting a position of the three-dimensional optical device if the level of crosstalk exceeds a predetermined threshold value.

Apparatus and method for displaying three-dimensional image according to position of user

Provided is a high resolution 2D-3D switchable autostereoscopic display apparatus including: a backlight unit emitting light; a spatial light modulator comprising a plurality of cells, the cells being arranged two-dimensionally and comprising left eye regions and right eye regions that are each independently switchable between a transparent state and an opaque state; a lenticular lens sheet separating and emitting light passed through the spatial light modulator to a left eye viewing zone and a right eye viewing zone; and an image display panel displaying an image, wherein the spatial light modulator is divided into a plurality of horizontal segments that are sequentially switched in synchronization with a vertical synchronization signal of the image display panel.

High resolution 2D-3D switchable autostereoscopic display apparatus

An image quality assessment method and an image quality assessment apparatus are provided. In the image quality assessment method, the contrast of a measurement pattern displayed on the display apparatus, the brightness of the background, and the resolution are adjusted, and thereby the luminance characteristic of the measurement pattern is detected. Accordingly, the image quality of a display apparatus can be assessed using the number of waves determined from the luminance characteristic and the modulation transfer function (MTF) of the waves. Therefore, image quality assessment can be performed objectively by the display apparatus.

Image quality assessment method and image quality assessment apparatus for display apparatus

An image display device and a method for correcting a display characteristic thereof are provided. The image display device includes a composite color luminance determination unit which determines luminance of a composite color using luminance of a neutral color and luminance of a pure chromatic color, a display unit which displays an image signal using the luminance of the neutral color and the luminance of the pure chromatic color and the determined luminance of the composite color, a display characteristic measurement unit which measures a display characteristic parameter from the displayed image signal, and a display characteristic correction unit which corrects a display characteristic according to a result of comparing the measured display characteristic parameter and a preset target value. Accordingly, an accurate gamma correction can be performed.

Image display device and method for correcting display characteristic thereof

Provided is a three-dimensional (3D) image display apparatus and method including: a display; a photographing unit including a camera, a first light source disposed on an axis identical to a camera axis and a second light source disposed on an axis different from the camera axis, which takes a photograph of an observer using light emitted from the first and second light sources, and generates first and second images; an eye information detection unit which detects eye information of the observer based on the first and second images and determines a position of the observer based on the detected eye information; and a 3D image adjustment unit which adjusts a 3D image, which will be displayed on the display, based on the determined position of the observer.

3D image display apparatus and method using detected eye information

A video encoding apparatus and method to distribute one or more macroblocks, classified into the same slice group, over an entire frame, according to the H.264 standard. The video encoding apparatus includes: a macroblock group setting module, which sets the number of macroblocks in a macroblock group; a bit count extraction module, which extracts a bit count from each of the macroblocks; a bit count arrangement module, which arranges the macroblocks according to the extracted bit counts; a slice group determination module, which respectively allocates a plurality of slice group identifiers to the macroblocks, with reference to the result of the arrangement performed by the bit count arrangement module, so that a plurality of pieces of address information of the macroblocks can correspond one-to-one with the slice group identifiers; a rearrangement module, which classifies the macroblocks into a plurality of slice groups, according to the slice group identifiers of the macroblocks, and rearranges the macroblocks in slices of the slice groups; and an encoding module which encodes the rearranged macroblocks.

Video encoding apparatus and method

An apparatus and a method of arbitrarily adjusting the output time of caption information included in a received multimedia transport stream for broadcasting, by user input. The method includes: receiving an input of a time value for adjusting the output time of caption information, from a user through a user interface; by demultiplexing the multimedia transport stream, dividing the transport stream into video, audio, and data packets, decoding each packet, and storing the decoded packets in buffers corresponding to a type of each packet; resetting the output time of the caption information by adding the input time value to or subtracting the input time value from the output time included in the video or audio packet; and according to the output time of the reset caption information, blending the data stored in the buffer with the video information and presenting the blended information on the screen.

Method of controlling ouput time and output priority of caption information and apparatus thereof

Provided are an apparatus and method for processing a three-dimensional (3D) video signal which corrects first and second video signals to prevent a reduction in a 3D effect and a disparity estimation error due to a difference between the first and second video signals. The method includes: a video signal detection unit detecting a difference between respective characteristics of received first and second video signals; and a video signal correction unit correcting the first video signal or the second video signal to equalize the characteristics of the first and second video signals. When the apparatus and the method are used, a reduction in the 3D effect and the disparity estimation error due to the difference between the first and second video signals can be prevented.

Apparatus and method for processing 3D video signal

A direct viewing type stereoscopic image display apparatus which can remove a moir&#xe9; pattern is provided. The direct viewing type stereoscopic image display apparatus includes: a first memory which has a first field image signal divided from an image signal of one frame; a second memory which has a second field image signal divided from the image signal of one frame; a display device which forms a first field image and a second field image according to the first field image signal and the second field image signal; an image shift unit which sequentially shifts the first field image and the second field image; and a viewing zone dividing unit which divides the viewing zones of the first field image and the second field image. Thereby, the second field image is shifted from the first field image by a predetermined distance and thus a moir&#xe9; pattern is removed and image quality is improved.

Direct viewing type stereoscopic image display apparatus which can remove moire pattern

A high-resolution autostereoscopic display is provided. The autostereoscopic display includes a controller; a display panel receiving an image signal from the controller, forming an image, and including pixels and an inactive area between the pixels; a polarizer polarizing light emitted from the display panel to have a first polarization; a polarization switching controller; a polarization switch selectively converting the light with the first polarization into light with a second polarization in response to the electrical control of the polarization switching controller; a selection controller; a first electro-optical birefringent layer having an optical axis that direction is changed by an electrical control of the selection controller and including a plurality of first lenticular lenses separated by a predetermined pitch; and a second electro-optical birefringent layer having an optical axis that direction is changed by the electrical control of the selection controller, includes a plurality of second lenticular lenses that are arranged with the same pitch as the first lenticular lenses are and shifted by half the pitch from the first lenticular lenses.

High-resolution autostereoscopic display

Provided are an apparatus and a method of transforming a format of a multidimensional image so that the multidimensional image can be output by any type of display device. The apparatus includes a scaler and a formatter. The scaler receives the multidimensional image and scales up or down a resolution of the multi-dimensional image. The formatter receives property information about a display device and transforms the format of the multi-dimensional image to conform to properties of the display device. Accordingly, a three-dimensional image or a stereo image can be easily displayed by any type of display device.

Apparatus and method of transforming multidimensional video format

A projection-type 3-D image display includes a light source, a single display element, an image shift member, a projection lens unit, and a screen unit. The display element produces an image using light emitted from the light source. The image shift member time-sequentially shifts the image. The projection lens unit enlarges and projects the time sequentially shifted image. The screen unit includes an image separation unit. The image separation unit separates the time sequentially shifted image into images for a left eye and images for a right eye. The projection-type 3-D image display can realize a 3-D image using a single projector by having the image shift member to sequentially shift the images produced by the display element.

Projection-type 3-D image display using single projector

A glassless stereoscopic display, which does not produce color separation and black stripes, includes: a display panel displaying an image using a plurality of pixels; a 3D optical plate separating the image displayed by the display panel into a left-eye image and a right-eye image; and a prism sheet disposed between the display panel and the 3D optical plate and having a plurality of prism elements regularly arranged to rotate an image provided by each of the pixels of the display panel by approximately 90&#xb0;.

Growing community of inventors

Suwon-si, South Korea

Tae-hee Kim