Samsung Electronics Co., Ltd.

Skhynix Inc.

Korea Advanced Institute of Science and Technology

Yonsei University

Sunwoo Communication Co., Ltd

S-Biomedics

Dae-Sung Kim

Seung-Kyung Lim

Jeong-Seok Ha

So-Ra Kim

Hyun-Kyoung Kim

Hang-Kyu Park

Su-Hwang Jeong

Jin-Yong Kim

Bo-Young Lee

Jin-young Jeon

Seok-Tae Kim

Ji-Young Kang

Dong-wook Kim

Sung-dae Cho

Seok-Jin Joo

Sang-Ha Lee

Jin-Young Jeon

Soon-Young Kang

Jong-In Choi

Jeong Seok Ha

Ji Eun Oh

Sang-Hyeon Yoo

Chol-Su Chae

Jaehyung Jung

Namsuk Kim

Ohhyung Kwon

Jutaek Lim

Jung-Ik Seo

Bo-Seok Jeong

Sang-Chul Lee

Young-Jai Kim

Yu-Rin Kim

A method of controlling a user interface using an input image is provided. The method includes storing operation executing information of each of one or more gesture forms according to each of a plurality of functions, detecting a gesture form from the input image, and identifying the operation executing information mapped on the detected gesture form to execute an operation according to a function which is currently operated.

Apparatus, method and recording medium for controlling user interface using input image

A portable communication device is provided. The portable communication device includes a touch screen, a memory, and a processor configured to identify tag information from a plurality of images stored in the memory of the electronic device, wherein the tag information includes first tag information corresponding to a location at which at least one first image of the plurality of images is taken, second tag information corresponding to an object recognized from at least one second image of the plurality of images, and third tag information corresponding to an application used to acquire at least one third image of the plurality of images, display, via the touch screen, a first menu related to the first tag information, a second menu related to the second tag information, and a third menu related to the third tag information in a form of a thumbnail, receive a selection of the first menu, the second menu, or the third menu, and display, via the touch screen, at least one first image tagged with the first tag information, at least one second image tagged with the second tag information, or at least one third image tagged with the third tag information, based at least in part on the selection of the first menu, the second menu, or the third menu.

Electronic device for playing-playing contents and method thereof

A semiconductor memory system includes: a semiconductor memory device to store a codeword; and a low-density parity check (LDPC) decoder to decode the codeword, based on a parity check matrix, to generate a decoded codeword, wherein the LDPC decoder includes: a selector to select one or more sub-matrices that share the same layer index of the parity check matrix, and select variable nodes corresponding to columns included in the selected one or more sub-matrices based on a threshold value and a number of unsatisfied check nodes (UCNs) connected to the selected variable nodes; a variable node updater to update decision values of variable nodes corresponding to all columns included in the parity check matrix; a syndrome checker to determine whether decoding the codeword has been performed successfully or not; and a check node updater to update a backup syndrome, the threshold value, and a size of a processing unit.

LDPC decoder, semiconductor memory system, and operating method thereof

A decoding method for a low density parity check (LDPC) code includes: updating a first check node, among a plurality of check nodes, by receiving, by the first check node, a bit decision and an associated first reliability value from each of a subset of variable nodes including a first variable node among a plurality of variable nodes, calculating a syndrome value and a second reliability value of the first check node based on the received bit decisions and first reliability values, and outputting the calculated syndrome value and second reliability value of the first check node to a variable node of the plurality of variable nodes but not of the subset of variable nodes; and updating the first variable node by receiving, by the first variable node, a syndrome value and a second reliability value of a second check node among the plurality of check nodes, and updating the first reliability value of the first variable node based on the syndrome value and the second reliability value of the second check node.

Apparatus and method for decoding LDPC codes

A semiconductor memory system includes: a semiconductor memory device for storing a code word; a decoder for decoding stored the code word based on a parity check matrix formed of sub-matrices to generate decoded data; and a channel for coupling the semiconductor memory device to the decoder and providing the decoder with the stored code word, wherein the decoder includes: a variable node selecting device for sequentially selecting sub-matrices sharing the same layer of the parity check matrix and sequentially selecting variable nodes respectively corresponding to columns forming the selected sub-matrices; a variable node updating device for updating the selected variable nodes based on a channel message and check node messages provided to the selected variable nodes; and a check node updating device for updating the check nodes based on variable node messages provided to the check nodes coupled to the selected variable nodes.

An operation method of a decoder may include: performing a first sub-decoding operation on a target data chunk; performing a second sub-decoding operation on candidate chunks and a chip-kill chunk; performing a third sub-decoding operation to determine a global check node; performing a fourth sub-decoding operation to infer and update local variable nodes of the target data chunk and local variable nodes of a data chunk from the global check node; and repeating the first to fourth sub-decoding operations once by a set number of times based on components of the updated local variable nodes.

Decoder, operating method thereof and memory system including the decoder

A method and a portable communication device are provided. The portable communication device includes a touch screen, memory, and a processor adapted to identify, with respect to a plurality of images stored in the memory, first tag information corresponding to a location at which a first image of the plurality of images is taken, second tag information corresponding to an object recognized from the first image or a second image of the plurality of images, and third tag information corresponding to a specified application used to acquire the first image, the second image, or a third image of the plurality of the images, display, via the touch screen, a first menu related to the first tag information, a second menu related to the second tag information, or a third menu related to the third tag information, receive a selection of the first menu, the second menu, or the third menu, and display, via the touch screen, a user interface of a first user interface corresponding to the first menu, a second user interface corresponding to the second menu, and a third user interface corresponding to the third menu, based at least in part on the selection of a corresponding menu of the first menu, the second menu, and the third menu.

An operating method of a controller, comprising:

Controller, semiconductor memory system and operating method thereof

An operating method of a controller includes generating a square message matrix of k&#xd7;k; and generating an encoded message by encoding the square message matrix row by row through a Bose-Chadhuri-Hocquenghem (BCH) code, wherein the square message matrix includes an upper triangular matrix and a lower triangular matrix, which are symmetrical to each other with reference to zero-padding blocks included in a diagonal direction in the square message matrix, wherein the upper triangular matrix includes '&#x3b2;' numbers of message blocks, each of which has a size of '&#x3b1;+1', and &#x201c;(N&#x2212;&#x3b2;)&#x201d; numbers of message blocks, each of which has a size of &#x201c;&#x3b1;&#x201d;, and wherein &#x201c;&#x3b1;&#x201d;, &#x201c;&#x3b2;&#x201d; and N have relationships represented by equations 1 and 2:  where &#x201c;M&#x201d; represents a size of a message input from a host and &#x201c;N&#x201d; represents a number of message blocks forming the upper triangular matrix.

An operation method of a controller may include encoding a first data at a first code rate such that the encoded first data is decoded by a first parity check matrix included in a variable code-rate parity check matrix and encoding a second data at a second code-rate such that the encoded second data is decoded by a second parity check matrix included in a variable code-rate parity check matrix.

Controller and operating method thereof

An operation method of a memory controller may include performing a first decoding operation to a message of an internal region included in a codeword received from a semiconductor memory device by using an internal parity, wherein the message and the internal parity are included in the internal region in a matrix form; and performing a second decoding operation to the internal region, to which the first decoding operation is performed, by using an outer parity of an outer region.

Memory controller, semiconductor memory system and operating method thereof

An operation method of a memory controller includes: reading a second data from memory cells when a hard decision error correction decoding operation based on a first data read from the memory cells fails; calculating a LLR of each bit-data included in the first data by using the first and second data; and performing a soft decision error correction decoding operation based on the LLR, wherein the memory cells include a first and second memory cell, wherein the first data includes first-bit-data read from the first and second memory cell, wherein the second data includes second-bit-data read from the first and second memory cell, wherein the LLR is a LLR of the first-bit-data read from the first memory cell calculated based on the first bit and a second bit read from the first memory cell and a first bit and a second bit read from the second memory cell.

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Seoul, South Korea

Dae-Sung Kim