1064 results about "Decodes" patented technology

A system is provided for delivering Internet and digital content to a variety of thin client devices. A web portal for accessing and selecting content is used in conjunction with graphical user interfaces on a personal computer for setting up and controlling the content channels. The user interfaces, scheduling, and communication management are controlled by a system control software application running on a local server with an Internet connection. A high speed local area network provides for streaming content from the Internet or local server to thin client devices. A digital audio playback device is connected to the local server via the local area network connection and decodes streamed audio files, and converts them into analog audio signals for input into a conventional stereo. Digital content is streamed automatically from the local server to another Internet playback device, based on end user content preferences and schedule selections.

The document scanner system and method operates in conjunction with a document imprinted with data in a plurality of data image fields and a plurality of form documents adapted to have data imprinted thereon. The system output to a communications port is a delimited string of decoded characters. The method scans to obtain positional information of data fields or accepts topological form input by the operator. The operator identifies data descriptors, e.g. field size, data type, etc. The system and method scans the document imprinted with data and captures an image thereof. The scanned input document image is compared with the stored forms (particularly the stored data field descriptors, e.g., positional information, and data type). The system selects a stored form, extracts the data from each field, decodes or calculates the data, and validates the data and stores the decoded / calculated data in the output sequence.

A system is provided for delivering Internet and digital content to a variety of thin client devices. A web portal for accessing and selecting content is used in conjunction with graphical user interfaces on a personal computer for setting up and controlling the content channels. The user interfaces, scheduling, and communication management are controlled by a system control software application running on a local server with an Internet connection. A high speed local area network provides for streaming content from the Internet or local server to thin client devices. A digital audio playback device is connected to the local server via the local area network connection and decodes streamed audio files, and converts them into analog audio signals for input into a conventional stereo. Digital content is streamed automatically from the local server to another Internet playback device, based on end user content preferences and schedule selections.

Systems and methods for generating likelihood metrics for trellis-based detection and / or decoding are described. In some embodiments, likelihood metrics for a first subset of bit locations in an error pattern (e.g., bit locations that fall within the error event update window) are updated based on a first metric, such as the path metric difference, associated with an alternate path that converges to the same trellis state as the decoded sequence. In some embodiments, likelihood metrics for a second subset of bit locations in the error patterns (e.g., bit locations that do not fall within the error event update window) are updated based on a second metric, such as a predetermined value of zero, a small metric, or the path metric difference for a path that does not converge into the same winning state as the decoded sequence for the particular error update window of interest.

The disclosed exchange-paying method by mobile terminal device comprises: the selling device generates exchange receipt included item name and random mark; the mobile terminal acquires the receipt and sends it with user ID to the paying center; the latter signs on the receipt by preset private key and codes to obtain payment ACK code to send to the user terminal; the latter transmits the ACK code to the selling terminal; the latter decodes and deciphers the received data to check up validity and complete the process. This invention is simple and low cost.

A scheme for transmission of control channel information in a compact form intended to support SPS (Semi-Persistent Scheduling) in a wireless communication system. As applied to LTE, the scheme is to indicate a pre-configured UE-specific resource allocation in a Downlink Control Information (DCI) format containing information for multiple UEs in the same PDCCH. In order to avoid increasing the number of blind decodes, the DCI format size may be the same as an existing DCI format. Preferably the size of the new format is the same as that of DCI formats 0 / 1A / 3 / 3A. The number of required bits per UE is minimised by signalling only one of a limited set of DCI messages per UE. The scheme provides a means for re-configuring SPS resources for multiple UEs using a single PDCCH transmission, whilst enabling better support for variable packet sizes and variable intervals between packets than currently defined SPS.

The invention discloses a polarization code and multi-bit even parity check code cascaded error correction coding method. The method comprises the steps: a transmitting end encoder utilizes a multi-bit even parity check code as an outer code, and utilizes a polarization code as an inner code; a receiving end decoder decodes by utilizing a modified successive cancellation list (SCL) decoding algorithm. On the aspect of error correction performance, comparing with the prior art utilizing middle-short code length non-cascaded polarization codes of the SCL decoding algorithm, the polarization code and multi-bit even parity check code cascaded error correction coding method has the advantages that frame error rate performance of a system can be remarkably improved, and a maximum likelihood bound (ML Bound), which cannot be broken through by the SCL decoding algorithm, can be remarkably broken through. On the aspect of engineering realization, according to the polarization code and multi-bit even parity check code cascaded error correction coding method, the outer code utilizes the multi-bit even parity check code, which is simple to code; the modified SCL decoding algorithm is utilized to decode, bit decision and even parity check are combined to be carried out in a decoding process, and compared with the original SCL decoding algorithm, the method provided by the invention does not increase the decoding complexity, and facilitates the engineering realization.

A method and device for decoding bin values using a pipeline architecture in a CABAC decoder are provided. The method includes reading a first context model required to decode a first bin value, from a memory; determining whether a second context model required to decode a second bin value is the same as the first context model, while decoding the first bin value using the first context model; determining whether a third context model required to decode a third bin value is the same as the second context model, while decoding the second bin value using the second context model, if it is determined that the second context model is the same as the first context model; and reading the second context model from the memory, if it is determined that the second context model is not the same as the first context model.

A system for transferring data from a television receiver to a display device and a shared data device includes a digital television receiver, a display device, at least one shared data device, and a communications channel coupled to the television receiver and the shared data devices. The television receiver receives, decodes, and processes a digitally encoded television signal (e.g., MPEG). This processed signal is provided to a display device (e.g., television monitor). In addition, an auxiliary data signal, sent with the digitally encoded television signal, is sent to at least one shared data device. Each of the shared data devices may be a printer, another television receiver, a digital video tape recorder, or a personal digital assistant (PDA). With a system as described herein, the auxiliary data may be an electronic program guide such that a viewer may print a program menu for subsequent review. Upon reviewing the printed program menu, the viewer may then select a channel for viewing or program a video tape recorder to record a selected channel. Alternatively, a viewer may transfer the electronic program guide to a PDA, review the program menu on the PDA, and subsequently program the television receiver, via the PDA, to select a channel for viewing or program a video tape recorder, via the PDA, to record a selected channel.

An image display system includes a transmitter device that can transmit video data and audio data, and a receiver device that is connected via an HDMI cable to the transmitter device and that includes a display device that displays video based on video data from the transmitter device and an audio output device that outputs audio based on audio data from the transmitter device. The receiver device includes an HDMI receiver that, when the receiver device is connected via the HDMI cable to the transmitter device and then receives therefrom an EDID request, transmits EDID, and that thereafter, when the receiver device receives video data and audio data from the transmitter device, checks whether or not the receiver device has received EDID-complying data so that, if EDID-complying data is found to have been received, the HDMI receiver decodes and outputs the video data and the audio data to the display device and the audio output device respectively and, if non-EDID-complying data is found to have been received, the HDMI receiver, by once cutting off the connection via the HDMI cable or turning off the receiver device, makes the transmitter device perform again the operation for acquiring EDID to thereby acquire correct EDID.

A Downlink Control Information (DCI) processing device and method for a wireless communication system that encodes / decodes downlink control information based on a payload size of DCI format. The method includes determining a payload size of a first DCI format; and determining a payload size of a second DCI format by appending padding bits to the second DCI format until the payload size of the second DCI format is not an ambiguous size and is not equal to the payload size of the first DCI format.

A method for decoding a stream encoded using a scalable video coding and including a plurality of layers of frames divided into a plurality of blocks, decodes block-wise in parallel the layers of the stream. A target block in an enhancement layer is decoded as soon as the block data required for its decoding are available from the reference layer.

Tools and techniques for applying scan patterns during encoding and decoding of progressive video are described. For example, a video decoder entropy decodes transform coefficients in a one-dimensional array and scans the transform coefficients into a block according to a scan pattern. The block is 8×4, and the scan pattern biases the vertical direction for at least the lowest frequency AC coefficients in the horizontal and vertical directions. Or, the block is 4×8, and the scan pattern biases the horizontal direction for at least the lowest frequency AC coefficients in the horizontal and vertical directions. A corresponding video encoder applies the scan patterns to scan transform coefficients from blocks to one-dimensional arrays.

Methods and apparatus for implementing memory efficient LDPC decodes are described. In accordance with the invention message information is stored in a compressed state for check node processing operations. The state for a check node is fully updated and then subject to an extraction process to generate check node to variable node messages. The signs of messages received from variable nodes may be stored by the check node processor module of the invention for use in message extraction. The check node processor can process messages in variable node order thereby allowing the variable node processor and check node processor to operate on messages in the same order reducing or eliminating the need to buffer and / or reorder messages passed between check nodes and variable nodes. Graph structures which allow check node processing on one graph iteration to proceed before the previous graph iteration has been completed are also described.

A hybrid forwarding apparatus and method for cooperative relaying in an OFDM network are provided. In a hybrid forwarding apparatus in a relay terminal, a forwarding scheme selector selects a forwarding scheme for transmission. An amplify and forward (AF) block amplifies data received from the forwarding scheme selector, if an AF scheme is selected. A decode and forward (DF) block decodes and encodes data received from the forwarding scheme selector, if a DF scheme is selected. A multiplexer provides the output data of the AF block and the DF block to an OFDM modulator.

A digital video processor and operating method for a receiving raw audio and video data representing images and sound to be played. The processor includes a demultiplexer for receiving the raw audio and video data and providing demultiplexed audio and video data to a memory. A first system time clock provides first time values in response to being continuously clocked by the demultiplexer. A CPU decodes and plays back the audio and video data as a function of the audio and video PTS values. The processor further includes a second system time clock providing second time values in response to being periodically incremented by the CPU. The CPU periodically sets the second system time clock to a second time value equal to a current first time value of the first system time clock in response to a standard play mode, and the CPU periodically sets the first system time clock to a first time value equal to a current second time value of the second system time clock in response to a trick play mode.

To provide an orthogonal frequency division multiplex modem circuit which can multiplex signals, whose bit rates and QoS are different from one another, and can transmit the signals via one OFDM line. A serial / parallel converter converts input signals into a complex parallel signal respectively, and a sub carrier and a modulation system are assigned every communication channel. A randomizer changes the alignment sequence of the signal, a discrete inverse Fourier transformer processes the signal, a parallel / serial converter converts the signal into a serial signal, and a transmitter performs the orthogonal modulation of the signal to output the signal from an antenna. A receiver performs orthogonal demodulation of the signal received with an antenna, a serial / parallel converter converts the signal into a parallel signal, and a discrete Fourier transformer processes the parallel signal. In addition, a de-randomizer restores the alignment sequence of the subcarriers into the original condition, and a parallel / serial converter decodes and outputs the signal.

A digital image processing system takes color plus Z channel data as input, preprocesses, decimates, and codes the Z channel in-band as digital watermark data embedded within the color data prior to encoding and transmission. A second digital image processing system receives, decodes, and extracts the decimated Z channel data before applying statistical regularization to restore a full-resolution Z channel prior to depth-image-based rendering.

A decoding apparatus and decoding method for performing iteration decoding the suitable number of iterations, and thereby securing the desired transmission quality while decreasing the processing delay. Turbo decoder 301 iterates error correcting decoding on input coded sequences. Error checker 302 decodes an error detecting code contained in a decoded result of the error correcting decoding, and checks whether or not an error remains in the decoded result in turbo decoder 301. Iteration controller 303 instructs turbo decoder 301 to continue the iteration decoding until the number of iterations in the iteration decoding is more than or equal to the constraint number of iterations and error checker 302 determines no error in the decoded result.

An apparatus for switchable conditional execution in a VLIW processor is provided, comprising one or more decoders, one or more ALU with control units, and a register file. The decoders loads and decodes said instructions from a fetch unit for decoding and sending the decoded instructions to the ALU with control units for execution. The register file stores and forwards the results on result buses to the decoders. The execution of a VLIW instruction includes a fetch stage, a decode stage, plural execution stages and a write-back stage. The invention has the features of approximate ASIC timing by conditional write-back with the compiler support for the conditional write-back, condition resolved just before write-back., software selective conditional issue and conditional write-back modes, and without hardware interlock / dependence checking for the VLIW processor.

An improved and extended Reed-Solomon-like method for providing a redundancy of m≧3 is disclosed. A general expression of the codes is described, as well as a systematic criterion for proving correctness and finding decoding algorithms for values of m>3. Examples of codes are given for m=3, 4, 5, based on primitive elements of a finite field of dimension N where N is 8, 16 or 32. A Horner's method and accumulator apparatus are described for XOR-efficient evaluation of polynomials with variable vector coefficients and constant sparse square matrix abscissa. A power balancing technique is described to further improve the XOR efficiency of the algorithms. XOR-efficient decoding methods are also described. A tower coordinate technique to efficiently carry out finite field multiplication or inversion for large dimension N forms a basis for one decoding method. Another decoding method uses a stored one-dimensional table of powers of α and Schur expressions to efficiently calculate the inverse of the square submatrices of the encoding matrix.

A method and apparatus is disclosed herein for forward-backward SOMA techniques. In one embodiment, the apparatus is a receiver comprising: an inner decoder structure having a soft output M-algorithm (SOMA) based multiple-in multiple-out (MIMO) joint demapper that uses a SOMA-based MIMO detection process to perform joint inner demapping over each tone, where the SOMA-based MIMO joint demapper is operable to identify a best candidate among a number of candidates by searching a detection tree for each tone using a forward pass through the detection tree, where only a number of best alternatives from every level of the tree are expanded and where soft-output related information is collected and stored, and to perform a second pass, following the forward pass, during which soft-output is computed for each bit; and an outer decoder operable with the SOMA-based inner decoder to perform iterative decoding.

The invention discloses a point cloud attribute encoding method, a decoding method, encoding equipment and decoding equipment. The point cloud attribute encoding method and decoding method comprise the following steps of: selecting the first K points of the current point as neighbor points according to the Morton sequence, calculating the distance between each point in the point cloud and the centroid coordinates of the neighbor points, comparing the distance with a distance threshold, and determining the attribute prediction value of the current point according to the relationship between thedistance and the distance threshold; and finally, performing attribute encoding according to the attribute prediction value or determining an attribute value of the current point according to the attribute prediction value of the current point and a point cloud attribute code stream. According to the point cloud attribute encoding method and decoding method provided by the invention, the utilization of the correlation between the geometric information and the attribute information of the point cloud can be improved, so that the encoding and decoding performance of the point cloud attribute isimproved.

An apparatus and a method for inserting and displaying one or more signals during processing and display delays encountered in digital STB-receivers, including those delays encountered during channel changes. Moreover, a means for increasing the channel change delay period, while maintaining subscriber satisfaction, and thereby freeing up bandwidth for other services, is provided. These signals can be advertisements, entertainment, or other messages. When a channel change request occurs on a digital set-top receiver, a local watchdog module detects the channel change event and causes to be generated a signal that is immediately displayed on the TV, while the MPEG-2 subsystem of the receiver acquires, stores, decodes and presents the new program to the television. Providing advertisements or entertainment during the delay period allows for increase in the delay period thus allowing for higher compression and increased availability of bandwidth.

A system for decoding a video bitstream.

A method, apparatus and system for improving block error rate performance of a receiver having an iterative decoder in a communication system, the method, apparatus and system includes receiving an encoded frame of data, the encoded frame of data includes a quantity of code blocks where each code block has a corresponding code block size, determining a first maximum number of iterations for each of the code blocks of the encoded frame of data iteratively performing a decoding operation on a first code block until the occurrence of one of (a) the first maximum number of iterations has been reached and (b) the first code block has converged, and determining a second maximum number of iterations for the remaining code blocks of the encoded frame of data based on the number of actual iterations used to decode the first code block.

A data code label including a QR code and an ID tag including a memory having an identification code area and a decode data writing area. A data code in the QR code showing an error in decoding is corrected and stored in the memory in the ID tag while the degree of defection of the QR code is low. When the defects advance, the error rate will increase. If the error occurs after advance of defects, the decode data in the memory is read when the error is detected. If the decode data cannot be read, the error correction is effected. If the error rate is higher than a reference, the decode data is obtained from the memory. If this decreases the error rate under the reference, the error correction is effected.

The invention discloses a two-dimensional code and its decoding method and the printing publication for applying the two-dimensional code. The area of the positioning points located at the four corners of the code in the two-dimensional code characters is larger than that of the data points. The code symbol is arranged repeatedly on the basement and seamless joint as code matrix including at least two same code symbols, and the adjacent code has the same positioning point. The two-dimensional code is printed on the printing publication to be identified by the device. The decoding method comprises the following steps of: reading the two-dimensional code by using a reading device; detecting the margin of each point to obtain the margin image; parsing the margin image to obtain the closed border; computing the area within the closed border in order to select the positioning points; matching the positioning points in the rectangle mode; grouping the data points after selecting one separate code character; reconstructing the array of data points; and recovering the code words.