Samsung Electronics Co., Ltd.

Lg Electronics Inc.

Young-Hwan Lee

Beong-Jo Kim

Min-Goo Kim

Soon-Jae Choi

Se-Hyoung Kim

Jae-Hong Kim

Jun-Jin Kong

Yong-June Kim

Nam-Yul Yu

Min Goo Kim

Seung-Hwan Song

Dong-Hyuk Chae

Sang-Hyuck Ha

Jong-Seon No

Jong-ho Lea

Chang-Seok Lee

Chi-Hyun Park

Kyoung-Lae Cho

Pil-Yong Hwang

Sung-bin Im

Seung-Hyuk Choi

Jong-han Kim

Soo-Yeoun Yoon

Sang-wook Kang

Su-gyeong Hyeon

Jae-Kon Lee

Hee-seok Eun

Han-woong Yoo

Chi-Won Kim

Hyun-II Kang

Beong-Do Kim

Sang-Wook Cho

Beom-kyu Shin

Ho-sung Park

Soon-Jae; Choi

Beong-Jo Shinan Apt 303-804 Kim

Beong-Jo c/o Samsung ElectronicsCoLtd Kim

Min-Goo c/o Samsung ElectronicsCoLtd Kim

Se-Hyong Kim

A method and apparatus for transceiving television (TV)-content-related information based on a social network. A TV content sharing method for providing TV-content-related information to a plurality of TV users based on a social network includes receiving from a TV user a request to check in a TV content sharing service; providing real-time user information regarding users who check in a content checked-in by the TV user, in real time; and providing related service information regarding accessible related services in the social network in relation to the checked-in content.

Method and server for the social network-based sharing of TV broadcast content related information

An error control coding (ECC) circuit includes a first decoder, a second decoder, and a controller. The first decoder receives encoded data comprising a first parity and a second parity. The first decoder decodes the encoded data to a first code by using the first parity. The second decoder is connected to the first decoder. The second decoder is configured to decode the encoded data when the first decoder is deactivated and decode the first code using the second parity when the first decoder is deactivated. The controller transmits a control signal to the first decoder and the second decoder to control the first decoder and the second decoder.

Semiconductor device and decoding method thereof

A decoding method includes performing a first decoding method and performing a second decoding method when decoding of the first decoding method fails. The first decoding method includes updating multiple variable nodes and multiple check nodes using probability values of received data. The second decoding method includes selecting at least one variable node from among the multiple variable nodes; correcting probability values of data received in the selected at least one variable node; updating the variable nodes and the check nodes using the corrected probability values; and determining whether decoding of the second decoding method is successful.

Decoding method and memory system device using the same

The flash memory device includes a control logic circuit and a bit level conversion logic circuit. The control logic circuit programs first through Nbits of data in a memory cell array of the N-bit MLC flash memory device or reads the first through Nbits of the data from the memory cell array in response to one of a program command and a read command. The bit level conversion control logic circuit, after the first through Nbits of the data are completely programmed or read, programs or reads an (N+1)bit of the data in response to a control signal. The bit level conversion control logic circuit converts voltage levels of voltages, which are used for programming or reading the first through Nbits of the data, to program or read for 2cell distributions of 2cell distributions corresponding to the (N+1)bit of the data and then programs or reads for other 2cell distributions.

Flash memory device, programming and reading methods performed in the same

A device and method for rate matching channel-encoded symbols in a data communication system. The rate matching device and method can be applied to a data communication system which uses one or both of a non-systematic code (such as a convolutional code or a linear block code) and a systematic code (such as a turbo code). In one aspect, the rate matching device includes a plurality of rate matching blocks, the number of the rate matching blocks being equal to a reciprocal of a coding rate of a channel encoder. The rate matching device can rate match the symbols encoded with a non-systematic code or the symbols encoded with a systematic code, by changing initial parameters including the number of input symbols, the number of output symbols, and the puncturing or repetition pattern determining parameters.

Rate matching device and method for a date communication system

A casing for a portable terminal is provided. The casing includes a first portion configured to replace a rear cover of a portable terminal so as to provide an exterior surface of the portable terminal, a second portion connected to the first portion, and an electronic component located at the second portion, the electronic component being connectable to the portable terminal to provide at least one function associated with the portable terminal.

Casing and portable terminal having the same

A 2-dimensional interleaving method is disclosed. The method comprises dividing a frame of input information bits into a plurality of groups and sequentially storing the divided groups in a memory; permuting the information bits of the groups according to a given rule and shifting an information bit existing at the last position of the last group to a position preceding the last position; and selecting the groups according to a predetermined order, and selecting one of the information bits in the selected group.

Turbo interleaving apparatus and method

A channel coding and multiplexing apparatus and method in a CDMA communication system is disclosed. In the channel coding and multiplexing apparatus, each of a number of radio frame matchers (equal in number or greater than the number of transport channels) has a radio frame segmenter and segments each of transport channel frames that may have different transmission time intervals to radio frames. A multiplexer multiplexes the radio frames to form a serial data frame.

Apparatus and method for channel coding and multiplexing in CDMA communication system

A device and method for rate matching channel-encoded bits in a data communication system. The rate matching device includes a plurality of rate matching blocks, the number of the rate matching blocks being equal to a reciprocal of a coding rate of a channel encoder. The rate matching device can rate match the bits encoded with a non-systematic code or the bits encoded with a systematic code, by changing initial parameters including the number of input bits, the number of output bits, and the puncturing or repetition pattern determining parameters.

Rate matching device and method for a data communication system

A handoff method in a communication system where BSs providing different radio access interfaces to an MS are connected to an IP-based network through routers. A handoff from a first BS to a second BS is decided for an MS that receives IP service data from the first BS and an L2 connection is established between the MS and the second BS. During the L2 connection establishment, movement of the MS in the IP network is detected. Handoff negotiations are conducted between the first and second BSs by IP signaling. If the handoff is available according to the negotiations, mobility management control is performed considering movement of the MS. The IP service data is transmitted to the MS in a network path reset to the second BS by the mobility management control and an L2 connection is released between the MS and the first BS.

Inter-technology handoff method in an IP-based wireless communication system

A method is provided for self-calibrating the mismatch and the direct current (DC) offset occurring in a mobile transceiver. The transmitter of the mobile terminal is used as a signal generator and the receiver thereof is used as a response characteristic measurer. The baseband processor calibrates the mismatch and the DC offset for the receiving and transmitting sides using a test signal received from the transmitter. When multiple input subcarriers are used in a mixer present on a reception stage, self-calibration is performed using multiple received test signals obtained from one transmission test signal.

Self-calibration method for use in a mobile transceiver

The present invention relates to an apparatus and method for detecting a data rate in a turbo decoder for a mobile communication system. When a rate selector selects one data rate among a plurality of data rates, a turbo decoder repeatedly decodes an input data frame within a predetermined repetition limit number using the selected data rate and outputs the decoded data. A CRC detector performs CRC check on the decoded data and outputs the CRC check result, and a decoding state measurer measures decoding quality depending on the decoded data and outputs decoding state information. A controller then sets the repetition limit number to a predetermined minimum value, controls the repetition limit number according to the decoding state information, controls the rate selector and determines a data rate of the input data depending on the CRC check result.

Apparatus and method for detecting transmitting rate of turbo decoder

Disclosed is an apparatus for stopping iterative decoding in a turbo decoder performing iterative decoding on a received frame comprised of information bits and then outputting the iteratively decoded results. A turbo decoder sequentially outputs absolute LLR (Log Likelihood Ratio) values associated with the respective information bits of the received frame by the iterative decoding, and stops the iterative decoding in response to a stop command for the iterative decoding. A minimum LLR detector selects a minimum value M(i) among the sequentially output absolute LLR values. A controller issues a command to stop the iterative decoding, if the minimum value M(i) is larger than a first threshold determined based on a minimum value Famong absolute LLR values output through previous iterative decoding.

Apparatus and method for stopping iterative decoding in a CDMA mobile communication system

Growing community of inventors

Songnam-shi, South Korea

Young-Hwan Lee