Samsung Electronics Co., Ltd.

Korea Advanced Institute of Science and Technology

Electronics and Telecommunications Research Institute

Inha-industry Partnership Institute

Deok-Hwan Kim

Min-Goo Kim

Chin-Wan Chung

Seong-Wook Song

Seok-Lyong Lee

Seok-Ju Chun

Min-goo Kim

Ju-Hong Lee

Kwang-Hee Park

A method for decoding a channel signal in a signal reception apparatus is provided. The method includes performing a block decoding operation on a channel signal block, and if the block decoding for the channel signal block fails, re-performing a block decoding operation on the channel signal block using a preset pattern.

Signal reception apparatus, block decoding unit and method thereof in radio communication system

A receiving apparatus in a wireless communication system is provided. The receiving apparatus includes a first interference cancellation unit configured to cancel interference from a received signal that is received through an antenna according to a first scheme, a second interference cancellation unit configured to cancel interference from the received signal that is received through the antenna according to a second scheme, and a combination unit configured to combine the signal from which interference is cancelled according to the first scheme and the signal from which interference is cancelled according to the second scheme.

Virtual reception diversity apparatus and method in wireless communication system

Disclosed herein are a flash file system and an address translation method. The flash file system includes a file system, a Flash Translation Layer (FTL), and flash memory. The FTL receives Local Block Addresses (LBAs) from the file system, and translates the LBAs into Physical Block Address (PBAs. The flash memory receives the resulting PBAs. The FTL includes a memory block in which a multi-stage clustered hash table for mapping the LBAs to the PBAs is stored, and performs the address translation using the clustered hash table.

Efficient prefetching and asynchronous writing for flash memory

A frequency mixing apparatus with improved voltage gain and linearity is provided. The frequency mixing apparatus includes a transconductor, a separator, and a switching unit. A voltage gain of the transconductor is controllable, and the transconductor converts a Radio Frequency (RF) signal into a current signal under control of a self bias. The separator transfers the current signal to the switching unit. The switching unit outputs a signal having a frequency corresponding to one of a sum and a difference of a frequency of the RF signal and a frequency of a Local Oscillation (LO) signal by performing a switching operation according to the LO signal.

Low voltage mixer with improved gain and linearity

An apparatus and method for performing similarity searches using hyper-rectangle based multidimensional data segmentation partitions a data set representable by a multidimensional data sequence, such as a video stream, into segments in consideration of the temporal relationship between points, and groups similar segments in one sequence into the same cluster so as to efficiently search a database for a multidimensional data sequence similar to a given query sequence.

Apparatus and method for hyper-rectangle based multidimensional data segmentation and clustering

Disclosed herein is an apparatus and method for similarity searches using hyper-rectangle based multidimensional data segmentation. The similarity search apparatus has MBR generation means, first sequence pruning means, second sequence pruning means, and subsequence finding means. The MBR generation means segments a multidimensional data sequence to be partitioned into subsequences, and represents each subsequence by each Minimum Bounding Rectangle (MBR), such that sets of MBRs are generated from the multidimensional data sequence, and the MBR sets are stored in a database. The first sequence pruning means prunes irrelevant data sequences using a distance D between MBRs extracted from an inputted query sequence and the MBR sets stored in the database in a multidimensional Euclidean space. The second sequence pruning means prunes irrelevant data sequences using a normalized distance D between MBRs extracted from the query sequence and the MBR sets of data sequences remaining after the data sequences are pruned in a multidimensional Euclidean space. The subsequence finding means detects subsequences similar to the given query sequence by obtaining sets of points contained in MBRs involved in a calculation of the distance D from each sequence obtained using the distance D .

Apparatus and method for similarity searches using hyper-rectangle based multidimensional data segmentation

Disclosed is a multi-dimensional selectivity estimation method using compressed histogram information which the database query optimizer in a database management system uses to find the most efficient execution plan among all possible plans. The method includes the several steps to generate a large number of small-sized multi-dimensional histogram buckets, sampling DCT coefficients which have high values with high probability, compressing information from the multi-dimensional histogram buckets using a multi-dimensional discrete cosine transform(DCT) and storing compressed information, and estimating the query selectivity by using compressed and stored histogram information as the statistics.

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Seoul, South Korea

Deok-Hwan Kim