Samsung Electronics Co., Ltd.

Kyoung-Mook Lim

Hyung-jun Lim

Jae-hong Park

Heo-jin Byeon

Sung-Cheol Park

Jae-Hong Park

Seh-woong Jeong

Dong-Suk Shin

Sung-cheol Park

Joong-Eon Lee

Jong-Min Lee

Woo-Young Choi

Jae-Chul Lee

Nak-hee Seong

Eui-jin Kwon

Ho-young Jung

Jong-Oh Lee

Tae-Sun Kim

Young-Duk Kim

Kyung-heon Noh

Yong-Chun Kim

She-Woong Jeong

Yang-Ho Kim

Seh-Woong Jeong

Jong-Won Yi

Young-Doug Kim

Yun-Hwan Kim

A display driving circuit includes a timing controller including an encoder that compresses image data based on a reference having a number of image pixels of the image data as a compression unit and that outputs the compressed image data. The timing controller further includes at least one source driver including a decoder that decompresses compressed image data and transmits decompressed image data to a display panel through a plurality of channels. Compression by the encoder based on a first reference is performed independently of compression based on a second reference.

Timing controller and display driving circuit including the same

A semiconductor device includes a system-on-chip (SOC) and at least one wide input/output memory device. The SOC includes a plurality of SOC bump groups which provide input/output channels, respectively, independent from each other. The at least one wide input/output memory device is stacked on the system-on-chip to transmit/receive data to/from the system-on-chip through the SOC bump groups. The SOC bump groups are arranged and the at least one wide input/output memory device is configured such that one of the wide input/output memory devices can be mounted to the SOC as connected to all of the SOC bump groups, or such that two wide input/output memory devices can be mounted to the SOC with each of the wide input/out memory devices connected a respective half of the SOC bump groups.

Semiconductor device and semiconductor package

A deblocking filter includes a color resolution expansion unit, an edge filtering unit and a color resolution contraction unit. The color resolution expansion unit increases a color resolution of input video data to generate first video data. The edge filtering unit performs a blurring operation on a block edge of the first video data based on block size information to generate second video data. The color resolution contraction unit reduces a color resolution of the second video data to generate output video data, a color resolution of the output video data being the same as the color resolution of the input video data.

Deblocking filter and display device having the same

An arbiter, a system, and a method for generating a pseudo-grant signal in response to a request and receiving target information in response to the pseudo-grant signal. The pseudo-grant signal reduces or eliminates waiting time.

Arbiter, a system and a method for generating a pseudo-grant signal

A digital video signal processing apparatus and method for compensating a chrominance (C) signal includes receiving the C signal separated from an input video signal and compensating the C signal in at least one dimension thereof to generate a compensated C signal. A comparator may determine whether a portion of a Y signal in the input video signal is present in the C signal. The compensator may compensate the C signal only when the comparator determines a portion of the Y signal is present in the C signal. The comparator may calculate a variation between current C data of the input video signal and adjacent C data and compare the variation to a threshold value.

Digital video signal processing apparatus and method for compensating a chrominance signal

An adaptive digital video signal processing apparatus and method for Y/C separation. In the video signal processing apparatus, an adaptive 2D BPF carries out Y/C separation through comb filtering and bandpass filtering selected according to local characteristics of an image (e.g., based on the direction in which an edge in the image extends in vertical and horizontal directions. The adaptive 2D BPF performs 2D bandpass filtering in general case. The 2D BPF adaptively executes a series of selections of the various filtering operations in a continuous manner.

Digital video signal processing apparatus and method for adaptive Y/C separation

Video signal processing systems and methods for detecting horizontal synchronization signals within video signals. Digital filtering methods are implemented for processing analog video signals to determine time varying characteristics of video signals to detect the starting and ending positions of horizontal synchronization pulses in a video signal with increased accuracy. In addition, adaptive methods are implemented for dynamically determining various video signal parameters over time, such as blanking level BL, threshold value (slice) level and synchronization level SL using information extracted from digitally filtered video signals.

Digital video processing systems and methods for estimating horizontal sync in digital video signals

A circuit for reducing cross-color artifacts in video data can include three luminance/chrominance (Y/C) separator circuits each configured to provide sets of chrominance coordinates based on a respective three contiguous composite video frames. A first circumcircle calculator circuit is coupled to the three Y/C separator circuits and is configured to provide a circumcircle for a set of chrominance coordinates corresponding to the first, second and third contiguous composite video frames. A second circumcircle calculator circuit is coupled to the three Y/C separator circuits and is configured to provide a circumcircle for a set of chrominance coordinates corresponding to the second and third contiguous composite video frames and a fourth contiguous composite video frame. Related methods and computer program products are also disclosed.

Circuits, methods, and computer program products for reducing cross-color artifacts in video data

A digital processing system and method for tracking a subcarrier included in a video signal are provided, where a phase comparator tracks the phase of a color burst signal based on predetermined supposed phases, Y/C separation and demodulation are carried out based on a compensation phase that is updated by a phase compensator in response to the tracked phase, and the Y/C separation and demodulation are performed based on a compensation frequency determined by a frequency compensator by checking short-term and long-term variations in the updated compensation phase.

Digital processing system and method for tracking subcarrier included in video signal

A digital video signal processing apparatus and method for adaptive spatio-temporal Y/C separation in multiple directions. In the digital video signal processing apparatus, an adaptive three-dimensional band pass filter (3D BPF) performs Y/C separation using local comb filtering/1D band pass filtering when the edge direction is fixed vertically/horizontally according to spatio-temporal local characteristics of an image using spatio-temporal filters. When the edge direction is not fixed horizontally/vertically, the 3D BPF performs 2D band pass filtering in all directions. Thus, the 3D BPF continuously carries out comb filtering, 1D band pass filtering and 2D band pass filtering according to the spatio-temporal local characteristics of the image.

Digital video signal processing apparatus and method for adaptive temporal and spatial Y/C separation in multiple directions

A digital video signal processing apparatus and method for field-based adaptive Y/C separation includes an adaptive 3D BPF performing Y/C separation according to local comb filtering/1D band pass filtering when the edge direction is fixed vertically/horizontally in response to spatio-temporal local characteristics of an image using spatio-temporal filters. When the edge direction is not fixed horizontally or vertically, the 3D BPF performs 2D/3D band pass filtering in all directions. The 3D BPF adaptively and continuously carries out comb filtering, 1D band pass filtering and 2D/3D band pass filtering in response to the spatio-temporal local characteristics of the image.

Digital video signal processing apparatus and method for field-based adaptive spatio-temporal Y/C separation

A digital video signal processing apparatus and method for frame-based adaptive spatio-temporal Y/C separation. In the digital video signal processing apparatus, an adaptive three-dimensional bandpass filter (3D BPF) performs Y/C separation using local comb filtering/1D band pass filtering/frame comb filtering when the edge direction is fixed vertically/horizontally/temporally according to spatio-temporal local characteristics of an image using spatio-temporal filters. When the edge direction is not fixed horizontally/vertically/temporally, the 3D BPF performs 2D or 3D band pass filtering in all directions. Thus, the 3D BPF continuously carries out comb filtering, 1D band pass filtering, frame comb filtering and 2D/3D band pass filtering according to the spatio-temporal local characteristic of the image.

Digital video signal processing apparatus and method for frame-based adaptive temporal and spatial Y/C separation

A digital video signal processing apparatus and method for detecting data in a vertical blanking interval (VBI) includes a re-sampler generating, from input video data, first re-sample data at a VBI data rate and second re-sample data with a data rate twice as high as the VBI data rate, a signal tracking unit tracking an existence of a clock run-in and a phase of the clock run-in from the second re-sample data and calculating an average of the clock run-in, and a slicer determining a logical value of the first re-sample data according to the average of the clock run-in and outputting the determined logical value as VBI data, wherein the re-sampler determines a compensation phase from the tracked phase of the clock run-in, re-samples the input video data according to the compensation phase with the VBI data rate and generates the first re-sample data.

Digital video signal processing apparatus and method for extracting data in a vertical blanking interval

An apparatus and method of controlling a digital video (MPEG) player for reverse-play. The MPEG player is comprised of an I-frame buffer for storing I-pictures encoded from P-pictures by a video decoder, a B-frame buffer for storing B-pictures, and an I-frame encoder for decoding a P-picture into an I-picture. In the MPEG player, a picture group being played at present is decoded for reverse play and a previous picture group is decoded for preparation of the reverse-play. Reverse-play in soft 1-times (&#xd7;1) by means of a frame memory of small capacity is achieved irrespective of the picture number and classes in picture groups.

Apparatus and method for controlling reverse-play for digital video bitstream

Provided are an arbiter capable of improving memory access efficiency in a multi-bank memory, a memory access arbitration system including the arbiter, and an arbitration method thereof, where the arbiter detects requests that are not included in a busy bank, and allows the requests corresponding to a bank receiving the largest number of pending requests priorities; and write request information generated by masters is stored in a predetermined buffer to be output as additional master request information, and provides the corresponding master with an opportunity to generate new request information.

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Hwaseong-si, South Korea

Kyoung-Mook Lim