Samsung Electronics Co., Ltd.

Shin-wook Kang

Hae-Young Jun

Jae-won Yoon

Sung-bum Park

Dai-woong Choi

Dong-woo Lee

Hyang-suk Park

Huai-Rong Shao

Seong-hun Jeong

Houng-sog Min

Sang-ik Choi

A method and apparatus for processing a video frame is provided. The method includes dividing the video frame into pixel blocks each including a reference pixel; calculating difference values between the reference pixel and pixels neighboring the reference pixel; converting the calculated difference values into values that belong to a bit depth range; and performing entropy coding by using the converted difference values as symbols.

Method and apparatus for processing video frame by using difference between pixel values

A method and apparatus for generating video packets and a method and apparatus for restoring video are provided. The method of generating video packets includes: generating at least one pixel block consisting of at least one reference pixel and a plurality of neighboring pixels adjacent to the at least one reference pixel from pixels of a video frame; replacing pixel values of the neighboring pixels in the at least one pixel block with pixel difference values, which are difference values between a pixel value of one of pixels adjacent to the neighboring pixels and the pixel values of the neighboring pixels; generating packets so that a pixel value of the at least one reference pixel and the pixel difference values of the neighboring pixels are allocated to different packets according to positions of the pixels; and performing entropy coding of some of the packets including the pixel difference values of the neighboring pixels.

Method and apparatus for generating video packets, method and apparatus for restoring video

Users of a method and apparatus to purchase (e.g., rent or buy) contents using a portable storage medium, via a network or the like. Contents purchased using embodiments of a method and apparatus may be developed to be automatically deleted or to be non-reproducible after being reproduced one time or after a predetermined period. Accordingly, users do not need to return borrowed or purchased contents. Also an owner of a contents rental shop may prevent contents from being unfairly reproduced. Further, user inconvenience due to the conventional manner in which users have to memorize information related to the contents and visit a rental shop to obtain desired contents may be avoided or decreased. Portable storage mediums or network resources of exemplary methods and apparatuses may be repeatedly used (e.g., without limitation), and thus may contribute to the saving of resources.

Method and apparatus to purchase contents by using portable storage medium or via network

Provided are a multi-channel flash memory system capable of increasing the overall bandwidth by using a plurality of flash memory chips, and a programming method performed in the flash memory system. The flash memory system includes: a plurality of channel units each including at least two flash memory chips, a control unit which controls the flash memory chips, and a buffer unit which stores external data; and a host interface unit which transmits data separated according to the number of the channel units and transmitted by a host to the buffer units of the channel units, wherein the control unit records the data stored in the buffer unit into the at least two flash memory chips.

Flash memory system, host system for programming the flash memory system, and programming method thereor

Provided are a flash memory system and a programming method performed in the flash memory system. The flash memory system includes a buffer unit including a plurality of buffers, and temporarily storing data transmitted by a host; a plurality of channel units each including at least one flash memory chip that includes a plurality of memory cell arrays; and a control unit which controls the data stored in the buffer unit to be sequentially transmitted to the channel units and the transmitted data to be recorded to the memory cell arrays of the flash memory chips in the channel units.

Flash memory system and programming method performed therein

A method and apparatus are provided for programming a non-volatile data storage device, in which a fast write operation can be performed using a plurality of page buffers included in the non-volatile data storage device when the write operation is performed in a way of using interleaving for each channel in a multi-channel system using a plurality of non-volatile data storage devices. The method includes programming data in a memory cell array included in the non-volatile data storage device using a page buffer selected from among a plurality of page buffers included in the non-volatile data storage device and performing a setup operation for loading data using another page buffer, which is different from the page buffer selected during the programming.

Method and apparatus for programming non-volatile data storage device

The present invention relates to a bridge for interfacing buses within an embedded system. There is provided a method of interfacing a first bus and a second bus operating at different speeds, the method includes counting a match value assigned to a predetermined peripheral device among peripheral devices connected to the second bus for each cycle of a clock signal received from the first bus, and keeping a read state or a write state for the predetermined peripheral device by continuously outputting a read signal or a write signal for the predetermined peripheral device to the second bus, during the counting of the match value. According to the present invention, it is not necessary to operate depending on a peripheral device operating at the lowest speed among peripheral devices, and not necessary to add wrappers to the peripheral devices, by employing the AHB-to-ISA bridge variably adjusting the output times of output signals to an ISA bus.

Method of and apparatus for interfacing buses operating at different speeds

An apparatus and method for identifying whether a memory card is inserted and for constituting data for identifying the memory card using hardware are provided. The apparatus establishes a data transfer mode through identifying the insertion of a card and includes a card insertion identifier, a card assignment information receiver, and a data transfer mode establisher. The card insertion identifier identifies whether a card is inserted. The card assignment information receiver receives predetermined card assignment information from a card driver if the card insertion identifier identifies that the card is inserted. The data transfer mode establisher establishes the data transfer mode for the card based on the card assignment information. The apparatus further includes a data transfer mode releaser that if the card insertion identifier identifies in the data transfer mode that the card is no longer inserted, informs the card driver that the card is not inserted to release the data transfer mode.

Growing community of inventors

Hwaseong-si, South Korea

Shin-wook Kang