Abstract: A power factor correction (PFC) system includes an error control module that determines a first current demand based on a difference between a desired direct current (DC) voltage and a measured DC voltage. A filter module applies a filter to the first current demand to produce a second current demand. A weighting module (i) based on the difference, determines first and second weighting values for the first and second current demands, respectively, (ii) determines a third current demand based on the first current demand and the first weighting value, and (iii) determines a fourth current demand based on the second current demand and the second weighting value. A current demand module determines a final current demand based on the third current demand and fourth current demand. A current control module controls switching of a switch of a PFC device based on the final current demand.

Abstract: The present invention relates to a video decoding system having a compensation function, the video decoding system comprising: one AD converter; a synchronized signal level detector for detecting a synchronized signal level using a digital signal output from the AD converter; a color burst level detector for detecting a color burst level using the digital signal output from the AD converter; a compensation apparatus for compensating the video level and the high frequency components of an analog signal by using information detected by the synchronized signal level detector and the color burst level detector, and for compensating and transmitting a synchronized signal level to the AD converter; and a decoding apparatus for outputting a digital component image signal (YCrCb) using the digital signal output from the AD converter.

Abstract: A data processing method of a transmitting apparatus includes generating a frame including at least one data packet, inserting, using the transmitting apparatus, a header including information associated with a data field occupied by the at least one data packet into the frame, and transmitting, to a receiving apparatus, the frame into which the header is inserted, wherein the information associated with the data field includes first information indicating whether a start byte of a first data packet is included in the data field and second information indicating whether an end byte of a last data packet is included in the data field.

Abstract: One embodiment provides an apparatus. The example apparatus includes a root mean square (RMS) distortion determination module configured to determine an RMS distortion error and a signal to noise and distortion ratio (SNDR), the RMS distortion error determined based, at least in part, on a portion of a transmitted pulse centered at or near a transmitted pulse maximum amplitude and the SNDR determined based, at least in part, on the RMS distortion error.

Abstract: Audio data and video data are processed to determine one or more audible events and visual events, respectively. Contemporaneous presentation of the video data with audio data may be synchronized based at least in part on the audible events and the visual events. Audio processing functions, such as filtering, may be initiated for audio data based at least in part on the visual events.

Abstract: A digital video viewing system including methods for user selection of video advertisement content and time of display of video advertisements during a live video content stream. The digital video viewing system includes modules for receiving, evaluating and transmitting data within the digital video viewing system and to Internet protocol content providers. Also shown are methods for recording and re-playing live internet protocol content in conjunction with the video advertisement display methods.

Abstract: Systems and methods for toggling between television channels that appear on a display. A listing of channels is received from a user, with the channels being prioritized in an order of preference. One or more toggle types are also received from the user, with each toggle type further including a toggle trigger. In use, a channel is displayed on the display until a toggle trigger is detected. Once detected, the channel on the display is changed to another channel from the list of channels. This process may continue with the detection of another toggle trigger causing another changing of the displayed channel.

Abstract: The present invention provides a playback apparatus for playing back one combination video by combining a broadcast video with any additional video not determined by a fixed position relative to the broadcast video. The playback apparatus comprises: a first receiving unit that receives, via a broadcast wave, a broadcast video composed of broadcast images, each broadcast image being a portion of a frame image among a plurality of frame images constituting the original video; a second receiving unit that receives an additional video composed of remaining images, each remaining image being the remaining portion of the frame image; an arrangement information acquiring unit that acquires arrangement information indicating an arrangement of the broadcast image and the remaining image in the frame image; and a playback unit that reproduces and plays back the frame images by arranging the broadcast images and the remaining images based on the arrangement information.

Abstract: A display, includes: a display section; a first output section; a second output section; and a housing containing the display section, the first output section, and the second output section, wherein, the display section has an aspect ratio with a width more than twice a height, the first output section is arranged along an upper side of the display section so as to face forward and is configured to output a plurality of channels of audio, and the second output section is arranged along a lower side of the display section so as to face forward and is configured to output a plurality of channels of audio.

Abstract: A projection system and an operation method thereof are provided. The projection system includes a video and audio source, an image duplication unit, a plurality of image segmentation units, and a plurality of projectors. The video and audio source receives a sum image parameter, and provides a non-standard format image. The image duplication unit receives and sends one of sum image parameters to the video and audio source. The image segmentation units provide the same sum image parameters, though only one is transmitted to the video and audio source through the image duplication unit. Each of the image segmentation units receives the non-standard format image, and segments a part of the non-standard format image as a standard format image, where the standard format images are partially overlapped with each other. The projectors are respectively coupled to the corresponding image segmentation unit, and display according to the corresponding standard format image.

Abstract: A system configured to decode video data in a packetized elementary stream (PES) including frames of image data. The system includes a processor configured to receive a transport stream including control information associated with the image data including video metadata parameters associated with application specific functions applicable to the image data. The processor is also configured to receive the PES including the frames of image data in video access units. The processor is configured to retrieve and decode the retrieved video access units using the control information to form a signal including the frames of image data. The system also includes a storage device configured to store the frames of image data and the control information.

Abstract: In an interactive broadcasting system, television programming may be broadcast with interleaved web content information. The progress in broadcasting the web content information over one or more transports and over one or more channels within those transports, may be monitored to provide a time based indication of what content has been broadcast. In one embodiment, markers may be inserted into the data transmission flow and a method may be utilized to associate a handle with a particular marker. A method may be called which obtains the handle and another method may be utilized to invoke the handle to obtain current information about broadcast transmissions. This information may be used within a broadcast encoder or may be provided to a content provider, for example, through a log-in server.

Abstract: A digital broadcast transmitter/receiver, and a signal processing method thereof, includes a randomizer randomizing a dual transport stream which includes a normal data packet and a robust data packet and into which stuff bytes are inserted, a stuff-byte exchanger replacing the stuff bytes of the randomized data with known data, a first RS encoder performing RS-encoding of data output from the stuff-byte exchanger, a packet formatter performing an interleaving of the robust packet of the data output from the first RS encoder and reformatting the packet, an interleaver interleaving data output from the packet formatter, a trellis encoder performing a trellis encoding of interleaved data, a second RS encoder changing a parity by performing an RS encoding of the robust data of the trellis-encoded data, and a modulator modulating data output from the trellis encoder and RF up-converting the modulated data.

Abstract: A digital broadcasting reception apparatus and robust stream decoding method thereof. The digital broadcasting reception apparatus includes a robust decoder that decodes a robust stream of a dual transport stream where a normal stream and the robust stream are combined. The robust decoder includes a first decoder that trellis-decodes the robust stream; a robust deinterleaver that interleaves the trellis-decoded robust stream; a second decoder that convolution decodes the deinterleaved robust stream; a robust interleaver that interleaves the convolution-decoded robust stream; and a frame formatter that adds decoded data of the second decoder to a part that corresponds to a position of the robust stream of a frame where the normal stream and the robust stream are mixed. Accordingly, a receiver of a simple structure can be provided.

Abstract: In an interactive broadcasting system, television programming may be broadcast with interleaved web content information. The progress in broadcasting the web content information over one or more transports and over one or more channels within those transports, may be monitored to provide a time based indication of what content has been broadcast. In one embodiment, markers may be inserted into the data transmission flow and a method may be utilized to associate a handle with a particular marker. A method may be called which obtains the handle and another method may be utilized to invoke the handle to obtain current information about broadcast transmissions. This information may be used within a broadcast encoder or may be provided to a content provider, for example, through a log-in server.

Abstract: A method for receiving a broadcasting signal and a broadcasting signal receiver are disclosed. Even when a cell is changed while an emergency alert is output, the emergency alert can be continuously output using emergency alert table information included in the broadcasting signal and channel information of the cell. The emergency alert table information may include a cell identifier and the channel information of the cell may include virtual channel information of the cell.

Abstract: A method for receiving a broadcasting signal and a broadcasting signal receiver are disclosed. Even when a cell is changed while an emergency alert is output, the emergency alert can be continuously output using emergency alert table information included in the broadcasting signal and channel information of the cell. The emergency alert table information may include a cell identifier and the channel information of the cell may include virtual channel information of the cell.

Abstract: A digital broadcast transmitter/receiver, and a signal processing method thereof, includes a randomizer randomizing a dual transport stream which includes a normal data packet and a robust data packet and into which stuff bytes are inserted, a stuff-byte exchanger replacing the stuff bytes of the randomized data with known data, a first RS encoder performing RS-encoding of data output from the stuff-byte exchanger, a packet formatter performing an interleaving of the robust packet of the data output from the first RS encoder and reformatting the packet, an interleaver interleaving data output from the packet formatter, a trellis encoder performing a trellis encoding of interleaved data, a second RS encoder changing a parity by performing an RS encoding of the robust data of the trellis-encoded data, and a modulator modulating data output from the trellis encoder and RF up-converting the modulated data.

Abstract: A digital broadcasting transmission apparatus and robust stream coding method thereof. The digital broadcasting transmission apparatus includes a robust processor that codes a robust stream of a dual transport stream where a normal stream and the robust stream are combined. The robust processor includes a demultiplexer (DE-MUX) that separates the normal stream and the robust stream from the dual transport stream; a robust encoder that appends a parity to the separated robust stream; a robust interleaver that interleaves the robust stream having the appended parity; and a MUX that combines the interleaved robust stream and the separated normal stream. Accordingly, a receiver of a simple structure can be provided.

Abstract: A broadcasting receiver includes a demodulator, a detector, and a start flag storage unit. The demodulator demodulates received digital broadcasting and outputs a demodulated signal. The signal detector detects a synchronization signal and a start control signal from the demodulated signal. The synchronization signal and the start control signal are contained in an emergency alert broadcasting frame multiplexed onto the digital broadcasting. The start control signal indicates emergency alert broadcasting. The start flag storage unit stores a start flag indicating that the signal detector has detected the start control signal.

Abstract: A digital broadcast transmitter/receiver, and a signal processing method thereof, includes a randomizer randomizing a dual transport stream which includes a normal data packet and a robust data packet and into which stuff bytes are inserted, a stuff-byte exchanger replacing the stuff bytes of the randomized data with known data, a first RS encoder performing RS-encoding of data output from the stuff-byte exchanger, a packet formatter performing an interleaving of the robust packet of the data output from the first RS encoder and reformatting the packet, an interleaver interleaving data output from the packet formatter, a trellis encoder performing a trellis encoding of interleaved data, a second RS encoder changing a parity by performing an RS encoding of the robust data of the trellis-encoded data, and a modulator modulating data output from the trellis encoder and RF up-converting the modulated data.

Abstract: A receiver and method for the same are provided. In the receiver, a decoder may decode an equalized signal to generate symbol decisions and a soft information signal. An equalizer may select boundary levels for non-uniform quantization using a soft information signal delayed by a symbol interval. The equalized signal may be generated from a feedback-filtered signal using the symbol decisions.

Abstract: A digital broadcast transmitter/receiver, and a signal processing method thereof, includes a randomizer randomizing a dual transport stream which includes a normal data packet and a robust data packet and into which stuff bytes are inserted, a stuff-byte exchanger replacing the stuff bytes of the randomized data with known data, a first RS encoder performing RS-encoding of data output from the stuff-byte exchanger, a packet formatter performing an interleaving of the robust packet of the data output from the first RS encoder and reformatting the packet, an interleaver interleaving data output from the packet formatter, a trellis encoder performing a trellis encoding of interleaved data, a second RS encoder changing a parity by performing an RS encoding of the robust data of the trellis-encoded data, and a modulator modulating data output from the trellis encoder and RF up-converting the modulated data.

Abstract: In an interactive broadcasting system, television programming may be broadcast with interleaved web content information. The progress in broadcasting the web content information over one or more transports and over one or more channels within those transports, may be monitored to provide a time based indication of what content has been broadcast. In one embodiment, markers may be inserted into the data transmission flow and a method may be utilized to associate a handle with a particular marker. A method may be called which obtains the handle and another method may be utilized to invoke the handle to obtain current information about broadcast transmissions. This information may be used within a broadcast encoder or may be provided to a content provider, for example, through a log-in server.

Abstract: According to one aspect, the invention provides an apparatus for converting data encoded in a graphics signal to at least one output signal. The apparatus includes an input, a plurality of outputs, signal processing circuitry and a controller. The input is adapted to receive the graphics signal where the graphics signal includes a plurality of frames generated at least in part from original data. The signal processing circuitry is adapted to locate, in the graphics signal, data corresponding to the original data, convert the data corresponding to the original data to output data and communicate the output data to the plurality of outputs. The controller is adapted to monitor a capacity of the signal processing circuitry and generate a signal that results in at least one disposable frame being added to the plurality of frames. The signal processing circuitry is adapted to discard the at least one disposable frame.

Abstract: A digital broadcasting transmission and reception system includes a digital broadcasting transmission apparatus and a digital broadcasting reception apparatus. The digital broadcasting transmission apparatus that includes a robust processor that codes a robust stream of a dual transport stream where a normal stream and the robust stream are combined. The robust processor includes a demultiplexer (DE-MUX) that separates the normal stream and the robust stream from the dual transport stream; a robust encoder that appends a parity to the separated robust stream; a robust interleaver that interleaves the robust stream having the appended parity; and a MUX that combines the interleaved robust stream and the separated normal stream. The digital broadcasting reception apparatus includes a robust decoder that decodes a robust stream of a dual transport stream where a normal stream and the robust stream are combined.

Abstract: An entire stream containing a plurality of partial streams each consisting of content information is multiple-recorded on packet basis on an information recording medium. The information recording medium includes a file for storing object data consisting of a plurality of packets each containing a content information piece and further includes a file for storing information defining a reproduction sequence of object data and information indicating discontinuity of continuous numbers caused by absence of a packet during edition of continuous numbers of a plurality of packets corresponding to the recording order during multiple recording.

Abstract: On an information recording medium, an entire stream including a plurality of portion streams, each of which is provided with content information, is multiplexed-and-recorded by a unit of packet. The information recording medium is provided with a file for storing object data, which is provided with a plurality of packets, each of which stores therein a piece of the content information. The information recording medium is further provided with a file for storing information which defines a reproduction sequence of the object data and a file for storing information for indicating a discontinuous condition of a serial number of the plurality of packets corresponding to a recording order upon multiplexing-and-recording. The discontinuous condition is generated by a lack of the packet upon editing, with respect to the serial number.

Abstract: A method of transmitting color gamut information and an image device using the same are provided. The image device includes a color gamut information generating unit which generates color gamut information; an ancillary data generating unit which generates ancillary data including the color gamut information; and a composition unit which combines the ancillary data and image data. Since the image device reproduces an image based on the color gamut information, the quality deterioration of the image may be prevented.

Abstract: A display system for adjusting video parameters of a user-selected area is disclosed. The display system includes a level detector detecting a line pattern included in one of a plurality of image lines representative of a complete image being displayed, and a pattern receiver coupled to the level detector for receiving the detected pattern, where the received pattern includes a position indicator whose ends are vertically aligned with vertical edges of the user-selected area. In addition, the display system further includes a pixel counter coupled to the pattern receiver for measuring a set of horizontal positions of the indicator ends with respect to a reference point, a pattern analyzer calculating a set of horizontal positions of vertical edges of a video control area on the basis of the positions of the indicator ends, and a video preamplifier adjusting at least one of video parameters of the video control area.

Abstract: Random access reproduction in prompt response to user commands is realized. A stream analyzing block analyzes sequentially inputted transport streams to get entry point data. Discontinuity point data are obtained in correspondence to a discontinuity occurrence flag inputted from a PLL block. Sequentially inputted transport packets are analyzed to get mark point data. A stream database creating block creates a stream database by use of the discontinuity point data and the mark point data. The stream database is recorded on a recording medium.

Abstract: A separating device and method and a signal receiving device and method are presented. The separating device and method receive plural data streams and then separate and extract at least a portion of data from the received data streams. The signal receiving device and method receive plural data streams and then select, separate and extract at least a portion of the data from the data streams. Then the signal receiving device and method apply signal processing to the portion of the data that has been selected, separated and extracted.

Abstract: A method and apparatus for effecting a seamless, frame accurate splicing of MPEG-like transport streams by constructing a transition stream or clip with portions from each stream proximate respective splice points.

Abstract: Disclosed is a sub picture control apparatus and method for a TV that can achieve an effective viewing of the sub picture. The apparatus includes a region data extracting section (52) for extracting region data included in a broadcasting signal tuned by a second tuner (43), a second luminance/chrominance (Y/C) separating section (45) for separating a chrominance signal and a luminance signal from the broadcasting signal selected by the second tuner (43), a region extracting section/scaler (46) for extracting a video signal of a region corresponding to a specified region information and performing a picture size adjustment with respect to the extracted video signal, and a control section (53) for controlling a region extracting section/scaler (46) to extract the video signal corresponding to a region information extracted from the region extracting section/scaler (46) and controlling a video processing section (48) to process an output signal of the region extracting section/scaler (46).

Abstract: In a receiving terminal, while a dropout of digital data is predicted which is caused by an instantaneous interruption of digital broadcasting electromagnetic waves, such digital data whose dropout may be predicted is previously acquired via a communication from a broadcasting station, or via a broadcasting electromagnetic wave. Then, the acquired digital data is stored on the side of the receiving terminal. When a dropout of digital data actually occurs, this dropped digital data is interpolated based upon previously prepared interpolation data on the side of the receiving terminal so as to prevent an interruption of the digital broadcast. When the dropout of the digital data is predicted, it is not only predicted that the digital data is completely dropped, but also such a condition where a dangerous state is expected is predicted with margin.

Abstract: When recording real-time data on a DVD streamer or DVR the arrival time ATC of every real-time packet received by the recorder is stored along with the data on the recording medium. This is done to provide—by means of the ATCs—the same timing for the playback of the stored real-time stream as the timing of the recording process. However, a data stream received via the Internet TCP/IP protocol having a varying data rate is not played back correctly because the variations of the data rate of the received data stream are present in the played back signal. In the inventive data stream recording an arrival time stamp is provided for each data packet of said data stream, which arrival time stamps represent the arrival times of said data packets and are intended for temporally correct replay of the data stream to be recorded. However, said arrival time stamps are re-stamped in accordance with a desired data rate for the playback of said data stream to be recorded.

Abstract: An architecture for multi-format video processing of both high definition and standard definition television signals has a pair of processing paths. For HDTV one path processes the luminance component signal and the other path processes an interleaved color difference signal that is the combination of a pair of color difference component signals. For SDTV only a single path is used. The luminance and color difference component signals are interleaved together and optionally stuffed with filler bits to provide an interleaved signal at a high data rate, such as the HDTV data rate or one-half the HDTV data rate, for processing. After processing the SDTV components are deinterleaved from the processed interleaved signal. The color difference component signals may be upsampled prior to interleaving and subsampled after deinterleaving to simplify control signals. Thus the architecture provides a single processor for processing either an HDTV signal or two SDTV signals, one on each of the two HDTV paths.

Abstract: In a method for encoding a non-interlaced signal (60P) into an interlaced signal (60I) and an auxiliary signal, the interlaced signal (60I) is generated in dependence on the non-interlaced signal (60P), and the auxiliary signal is generated by furnishing regeneration coefficients enabling a reconstruction of non-encoded lines (o: D) of the non-interlaced signal (60P) in dependence on the interlaced signal (60I: A, B, C) and the regeneration coefficients. The invention is preferably applied in a method of processing non-interlaced signals by equipment, such as studio equipment, developed for processing interlaced signals.

Abstract: The method and system of this invention predictively encodes and decodes an image signal that has been treated with the Roberts Method. The method and system generates a noise signal that is substantially similar to the noise signal generated during the Roberts Method treatment, calculates a range of values for the original image signal based upon an image signal from a different pixel location, predicts the image signal based upon the range of values and the noise signal and calculates an error signal that is encoded. The decoding method and system operates in reverse of the encoding method and system.

Abstract: The present invention provides a method and apparatus for providing video output phase control in a decoder. In particular, the present invention provides a decoder that precisely aligns output of video display data with a time stamp associated with the video display data and thereby allows for efficient usage of compressed video buffer memory in the decoder. In one embodiment, the decoder includes a video output processor for displaying video data and a timer connected to the video output processor for providing video output phase control. A method is also provided for providing video output phase control in the decoder.

Abstract: A device and method for modifying a video image of a display apparatus method, for efficiently modifying a size and aspect ratio of a video image, is disclosed. The device includes an on-screen display (OSD) generator providing an on-screen display (OSD) on a display for programming a size and an aspect ratio of a video image, and a video processor modifying a displayed video image in accordance with the size and aspect ratio of the displayed video image programmed by a user. Herein, the video processor modifies the video image from a center point of the video image.

Abstract: A device and method for modifying a video image of a display apparatus method, for efficiently modifying a size and aspect ratio of a video image, is disclosed. The device includes an on-screen display (OSD) generator providing an on-screen display (OSD) on a display for programming a size and an aspect ratio of a video image, and a video processor modifying a displayed video image in accordance with the size and aspect ratio of the displayed video image programmed by a user. Herein, the video processor modifies the video image from a center point of the video image.