Abstract: A system is described for transmitting a communication signal between power lines. The system includes: a transmitter which outputs an OFDM or an FM-OFDM signal at a radio frequency greater than 200 MHz; a first power line which receives the OFDM or the FM-OFDM signal from the transmitter and radiates the OFDM or the FM-OFDM signal from a conductor of the first power line; a second power line which wirelessly receives, by a conductor of the second power line, the OFDM or the FM-OFDM signal radiated from the first power line, and a receiver connected to the second power line which receives the OFDM or the FM-OFDM signal from the second power line.

Abstract: A method for evaluating a received signal varying over an interval includes: (a) obtaining a data sample and a sample time; (b) determining whether the sample exceeds a previous exceeded extremum of the signal; (c) if the sample does not exceed an exceeded extremum, storing the sample; (d) if the sample exceeds the an exceeded extremum, in no particular order: (1) extracting and storing cycle information involving the exceeded extremum; and (2) replacing an earliest exceeded extremum with the sample; (e) outputting first selected data from a storage unit; (f) determining whether the interval has completed; (g) if the interval has not completed, repeating steps (a) through (f); (h) if the interval has completed, checking whether an output buffer is empty; (i) if the buffer is not empty, outputting second selected data from the buffer; 0) if the buffer is empty, terminating the method.

Abstract: The object of the invention is to checking the timing easily and in shorter time, and reduce the power consumption without any influence on other circuits functions. The solutions are as follows. By the “1” detecting counter, the “0” detecting counter, and the data validity judging circuit in the checking circuit of transmission control included in the DSRC baseband circuit of the transmission apparatus, it becomes the possible to judge the data validity of the transmission data TX_DI—0. Additionally, by the transmission enable counter 23 and the matched transmission-start-timing judging circuit, it becomes possible to judge the transmission-start-timings of the transmission enable signal TXW_N—0 and the transmission data TX_DI—0. Furthermore, by the transmission-end-timing judging circuit, it becomes possible to judge the end timing of each slot type of the transmission data.

Abstract: The present application discloses a number of inventions directed to method(s), apparatus and/or networks and systems adapted to track time varying channels, adapted to synchronise packets arriving at a receiver, adapted to correlate a received signal, adapted to manage digital resources, adapted to receive a signal and/or adapted to enable communication in a wireless packet based communications network.

Abstract: Provided is a measurement apparatus that measures jitter occurring in a data converter, including a measurement signal generating section that generates a measurement signal having a substantially constant period; a jitter injecting section that injects jitter of a deterministic signal having a predetermined jitter period into the measurement signal, and that inputs the resulting signal to the data converter; a jitter measuring section that measures a jitter string of a digital signal output by the data converter; and an extracting section that extracts data of the jitter string according to the jitter period of the jitter injected by the jitter injecting section.

Abstract: An adaptive equalizer system for use in a serial communication link uses timing information generated by a phase detector of a clock and data recovery circuit of the serial communication link and a frequency pattern of the recovered data to determine whether the data received over the serial communication link is over-equalized or under-equalized. The equalizer strength of the adaptive equalizer system is adjusted based on such determination.

Abstract: A system and method are provided for feed-forward equalization (FFE) in a transmission system. The method accepts a serial stream of input digital data signals. For each input data signal, a temporal sequence of signals is generated. Each of the signals in the temporal sequence is selectively shaped. Shaping map include varying the degree of amplification, modifying the slew rate, or varying the time delay. The contributions of the selectively shaped signals in the temporal sequence are then selectively weighted, and a summed output signal is transmitted.

Abstract: A method is disclosed herein, which may include receiving a video signal after a computer system is reset, automatically determining that an actual timing relation between the active video data and the synchronization pulse data deviates from the nominal relation by more than a tolerance value, and adjusting the actual timing relation to fall within the tolerance value. The video signal may include active video data and synchronization pulse data. A video format may define a nominal timing relation between the active video data and the synchronization pulse data.

Abstract: A video signal processing apparatus includes a main picture processor, an interlace recovering module and a video encoder. The main picture processor produces corresponding main picture signals based on video signals from a memory. The main picture signals are converted to progressive scan signals through a predetermined video signals processing. The interlace recovering module receives the progressive scan signals, retrieves the even portion and the odd portion of the progressive video signals alternately, and generates a set of interlace-scan signals. The video encoder receives both the progressive scan signals and the interlace scan signals and generates a set of progressive video signals and a set of interlace video signals to corresponding video display apparatuses. Thereupon, the video reproduction system can simultaneously provide both the progressive video signals and interlace video signals to the video display apparatuses.

Abstract: A system and method provides reduced bandwidth video in an MHP or OCAP broadcast system (100, 200). In one embodiment, the system and method provides end-users (viewers) (109) of an MHP or OCAP broadcast system (100) with a finite sequence of reduced bandwidth data images (133) sampled from a higher bandwidth video source (148). The finite sequence of reduced bandwidth data images (133) are preferably carried in a DVB signal stream (116) for a finite time duration to allow viewers (109) to view the data images (133) at their convenience. In another embodiment, the system and method provides end-users (viewers) (109) of an MHP or OCAP broadcast system (200) with a continuous stream of reduced bandwidth data images (233) sampled from a higher bandwidth digital video broadcast stream (150), preferably for use in a PIP display at the viewer's receiver (103).

Abstract: The embodiments described in this disclosure address the above issues and others. Accordingly, a self-configuring IP video router provides a plug-and-play transport interface between two LANs, one of which is the host to multiple IP video cameras or servers. In accordance with an aspect of the disclosure, plug-and-play functionality provides that the device can be connected to both networks via standard hardware interfaces, discover the video sources on the “inside” network, and configure itself to do the appropriate IP address mapping and IP port transport across the interface between the networks.

Abstract: A method of composing a multimedia slide show. In a preferred embodiment, the method comprises the steps of: selecting a plurality of digital images; encoding each of the plurality of digital images to generate a normal resolution image portion and a high resolution image portion; multiplexing each corresponding normal and high resolution image portion to generate a single high resolution still image; determining a time parameter for each of the high resolution still images; selecting an audio portion for at least one of the plurality of digital images; concatenating the plurality of high resolution still images to generate a video bitstream; generating an audio bitstream by encoding the audio portion; and multiplexing the video bitstream and audio bitstream to generate the multimedia slide show.

Abstract: A process may be utilized for encoding MBs. The process records a plurality of CABAC weight values for a first MB. The first MB resides in a first edge of a first frame in a plurality of images. Further, the process encodes the first MB with the plurality of CABAC weight values. In addition, the process initializes a second frame in the plurality of the images with the plurality of CABAC weight values. Finally, the process encodes a second MB with the plurality of CABAC weight values. The second MB resides in a second edge of a second frame in the plurality of images.

Abstract: An apparatus for and method of adapting a bitstream to which scalable video coding (SVC) technology is applied are provided. The apparatus for adapting a bitstream includes: an Adaptation QoS information extraction unit extracting SVC adaptation operators, and relationships between the SVC adaptation operators and the usage environment information of a terminal from the Adaptation QoS information on the bitstream to which SVC technology is applied; an Adaptation Decision Taking Engine(ADTE) unit determining the SVC adaptation operators corresponding to the usage environment of the terminal receiving the transmitted bitstream among the SVC adaptation operators; and a SVC bitstream extraction unit extracting the bitstream based on the determined SVC adaptation operator.

Abstract: In an image encoding device (100) that compression encodes moving pictures, a moving picture count acquisition unit (110) acquires a moving picture count of encoding target moving pictures corresponding to an arbitrary number of input moving pictures, a moving picture acquisition unit (120) acquires one or plural encoding target moving pictures, a processing method designation unit (130), in accordance with the acquired count, designates processing methods relating to encoding processing that affect a computation amount, for example, processing methods relating to a reference image frame count upper limit or a motion vector range, such that the greater the moving picture count is, the smaller the computation amount is, and an encoding processing unit (140) performs encoding processing with respect to the acquired one or plural moving pictures, using time division when the plural moving pictures are plural. The encoding unit (140) performs encoding processing using the designated methods.

Abstract: Motion compensation for video compression using a “flowfield” comprising a per-pixel field of motion vectors and confidence values. Flowfields can be quantized transform coded for compression motion compensation. Encoding-only flowfields match with one or more previous and subsequent frames to determine both modulation for resolution-enhancing layers, as well as sharp/soft filtering for an original image, a base layer, and for resolution-enhancing layers. Encoding-only flowfields can be used with various codec types by using the flowfield motion vector length and confidence to drive sharp/soft filters to improve efficiency via in-place noise reduction. Pixels may be displaced using encoding-only flowfields to nearby frames, and weighted for efficient noise reduction. Encoding-only flowfields are discarded after their use in encoding, and therefore do not require coded bits.

Abstract: An apparatus, software encoded in tangible media, and a method at an encoder. The method includes sending compressed video data including a reference frame message to create a long term reference frame to a plurality of decoders at one or more destination points, receiving feedback from the decoders indicative of whether or not the decoders successfully received the reference frame message, and in the case that the received feedback is such that at least one of the decoders did not successfully receive the reference frame message or does not have the indicated recent frame, repeating sending a reference frame message to create the long term reference frame. Using the method can replaces I-frame error recovery with long term reference frames, even in the case where the reference frame management messages are lost to at least one decoder.

Abstract: Provided are a method and apparatus for encoding and decoding an image based on intra prediction. The image encoding method comprises determining boundary values of a differential equation that is to be used to intra-predict a current block based on pixel values of pre-encoded pixels adjacent to the current block, predicting the current block using the differential equation and the boundary values and encoding the current block based on the prediction block of the current block.

Abstract: A method and system for mapping motion vectors. A weight is determined for each motion vector of a set of input blocks of an input bitstream. Then, the set of motion vectors are mapped to an output motion vector of an output block of an output bitstream according to the set of weights.

Abstract: A method for detecting a skip mode during encoding of a video sequence is provided. The video sequence includes a plurality of video frames, wherein each of the plurality of video frames includes a plurality of macroblocks. Each of the plurality of macroblocks includes a plurality of pixels. The method includes calculating a motion vector for a macroblock selected from the plurality of macroblocks, comparing the calculated motion vector of the macroblock with a predetermined skip motion vector of the macroblock, calculating a sum of absolute differences value for the skip motion vector of the macroblock, and selecting a skip mode for the macroblock. The skip mode is selected based on the calculated sum of absolute differences value and a predetermined threshold, wherein the predetermined threshold is based on a quantization parameter value of the macroblock.

Abstract: In digital video image encoding and decoding, a filter type is selected based on symmetrical properties of the images and coefficient values of an interpolation filter are calculated based on the selected filter type. Coefficient values, filter tap-length and selected filter-type are provided in the encoded video data. Coefficient values are also calculated based on a prediction signal representative of the different between a video frame and a reference image. The prediction signal is calculated from the reference image based on a predefined base filter and motion estimation performed on the video frame. The predefined base filter has fixed coefficient values. Coefficient values are selected from interpolation of pixel values in a selected image segment in the video frame. Symmetry properties of images can be a vertical symmetry, a horizontal symmetry and a combination thereof, so that only a portion of the filter coefficients are coded.

Abstract: A method and system for determining in real time the instantaneous output rate of a low delay video frame encoder/application for encoding a video frame to be transmitted are disclosed. The video frame encoder provides its output for wireless transmission over a telecommunication channel. In one aspect, a method comprises providing an estimate of the instantaneous channel conditions under which the video frame will be transmitted. The method further comprises determining the instantaneous output rate by selecting a high output rate when the channel conditions considered acceptable and selecting a low output rate when the channel conditions are considered unacceptable.

Abstract: A method and device for tracking error propagation and refreshing a video stream is provided. The proposed subject matter comprises of an error propagation tracking method that works in the sub-sampled domain to reduce computational cycles and memory bandwidth. Further, the tracking based update of the error propagation metric is done differently for static and non-static regions to avoid unnecessary refresh of static areas. Through suitable thresholding of the metric at a macroblock (MB) level, a set of refresh MBs are selected for each frame. These refresh MBs are coded either as an intra MB or as an inter MB that is predicted from one or more reliable reference frames (—frames that are known to be available at the decoder with negligible errors—). Such inter coding of refresh MBs improves the compression efficiency when compared to pure intra coding of refresh MBs.

Abstract: Hierarchical modulation preferably uses a 16-ary quadrature amplitude modulation (QAM) modulator with a convolutional encoder that combine to effectively provide unequal protection to two different segments of streaming input data, with improved power efficiency with the same bandwidth efficiency, by encoding the first segment as coded data as LSBs as the second segment remains uncoded as uncoded MSBs, with the MSBs used for QAM constellation modest reliability interquadrant demodulation and detection, and with the LSBs used for low reliability intraquadrant detection, but with the LSBs subject to convolutional encoding and decoding rendering the LSBs with high reliability detection, such that, the two segments have unequal coding and modulation for providing unequal levels of reliability detection.

Abstract: A multi-scale spike detector for performing multi-resolution spike detections of a signal is provided. The spike detector includes a gamma filter having cascaded low-pass filters. The cascaded filters collectively provide different cutoff frequencies, each of the filters having a respective output. One of the filters has an input, at which the signal is received. The spike detector further includes combining circuitry that combines at least some of the respective outputs of the cascaded filters. The differences formed from this combining provide a waveform representation of the input signal. The waveform representation consists essentially of spikes that occur in the signal.

Abstract: The present application provides an interference estimation circuit which includes a signal generator, a first symbol extractor and a first mixer. The signal generator generates an orthogonal signal orthogonal to partial symbols of a plurality of pilot signals. The first symbol extractor extracts partial symbols of a first decoded signal decoded from a received signal wherein the first decoded signal contains one of the plurality of pilot signals, and includes an input node for receiving the first decoded signal and an output node for outputting a first extracted signal. The first extracted signal is substantially orthogonal to the orthogonal signal. The first mixer is coupled to the signal generator for receiving the orthogonal signal and to the first symbol extractor for receiving the first extracted signal, and outputs a first mixed signal of the orthogonal signal and the first extracted signal for interference estimation.

Abstract: An OFDM system is provided. The system comprises: a single symbol among a series of symbols comprising; and a series PN sequences interposed between the series of symbols, with at least one PN sequence comprising a set of PN sub-sequences, wherein each PN sub-sequence is respectively associated with an ordered sub-central frequency within the single symbol.

Abstract: A method for receiving signals in a multi-carrier multiple access system is disclosed. The method comprises receiving signals from at least one base station wherein each signal has a base station identifier, processing the signals to identify each base station by using the base station identifier, performing a channel estimation using the processed signals, combining the processed signals using an information obtained from the channel estimation and decoding the combined signals.

Abstract: A base station includes a storage unit to store a codebook, wherein the codebook includes a plurality of matrices; a control unit to perform beamforming using the codebook to generate a signal; and a multi-antenna to transmit the signal. For all of the plurality of matrices, all column vectors of a same matrix of the plurality of matrices are orthogonal to each other. For all columns of the plurality of matrices, all column vectors of a same column of all of the plurality of matrices satisfy a Grassmannian line packing (GLP) criterion.

Abstract: A fine OFDM symbol synchronization method comprising the steps of: estimating (in 36) a channel impulse response (CIR) from received predetermined pilots present in OFDM symbols, the pre-determined pilots being arranged within the OFDM symbol at frequency intervals corresponding to n carrier frequencies, and their positions being shifted by k carrier frequencies from one OFDM symbol to the next, so that it is sent on the same frequency earner every m OFDM symbols, and thus m*k=n, m, n and k being integer numbers greater than one, and fine-tuning (in 60) the position of a time-domain-to-frequency-domain window used for receiving OFDM symbols, according to the position of at least one power peak in the estimated channel impulse response, wherein, if there are channel impulse response replicas in the estimated channel impulse response, the positions of correlated power peaks spaced apart by a multiple of Formula (I) is used for finding the position of the at least one power peak used n for fine-tuning, where Tu

Abstract: A method of transmitting signals in a communication system over at least two time periods including generating a base signal comprising of at least two samples in each time period, selecting a scrambling sequence of length equal to or greater than the number of time periods, scaling all samples in said signal in a time period with one element of said scrambling sequence and transmitting the scaled signal in said time period. Different elements of the scrambling sequence are used to scale the base signal in different time periods. The signal in each time period is obtained by scaling a base signal. The scrambling sequence is preferably a pseudo-random sequence. The step of scaling all samples in said signal in a time period consists of multiplying all samples of said signal with an element of said scrambling sequence.

Abstract: An apparatus and method for data transmission in an Orthogonal Frequency Division Multiplexing (OFDM) communication system are provided.

Abstract: The present invention employs a pilot scheme for frequency division multiple access (FDM) communication systems, such as single carrier FDM communication systems. A given transmit time interval will include numerous traffic symbols and two or more short pilot symbols, which are spaced apart from one another by at least one traffic symbol and will have a Fourier transform length that is less than the Fourier transform length of any given traffic symbol. Multiple transmitters will generate pilot information and modulate the pilot information onto sub-carriers of the short pilot symbols in an orthogonal manner. Each transmitter may use different sub-carriers within the time and frequency domain, which is encompassed by the short pilot symbols within the transmit time interval. Alternatively, each transmitter may uniquely encode the pilot information using a unique code division multiplexed code and modulate the encoded pilot information onto common sub-carriers of the short pilot symbols.

Abstract: Various embodiments of the systems and methods described herein may be used to compute a minimum variance unbiased estimator by receiving a first OFDM signal at a pilot tone, receiving a second OFDM signal sent in the same frequency band and determining a differential phase metric between the first OFDM signal and the second OFDM signal. In some embodiments, the differential phase metric may be used to diversity combine synchronization statistics. In various embodiments, the differential phase metric may be used to detect a narrow-band interference.

Abstract: Various embodiments of the systems and methods described herein may be used to compute a minimum variance unbiased estimator by receiving a first OFDM signal at a pilot tone, receiving a second OFDM signal sent in the same frequency band and determining a differential phase metric between the first OFDM signal and the second OFDM signal. In some embodiments, the differential phase metric may be used to diversity combine synchronization statistics. In various embodiments, the differential phase metric may be used to detect a narrow-band interference.

Abstract: A signal is received by P antennas. It includes frames having symbols occupying respective positions distributed along an axis of time and of frequency, a frame including M blocks having N reference symbols M groups of P weighting coefficients are determined, each one of the groups relating to one of the blocks emitted, with the coefficients of a group being associated to the blocks which are received on the P antennas and which correspond to the block emitted relating to the group. The coefficients are determined so as to increase via a threshold value, an error value for each block emitted, between the reference symbols of the block emitted, and the symbols obtained using the symbols received on each antenna at the positions of reference symbols corresponding to the block emitted and the associated coefficients.

Abstract: A system, apparatus, and method is provided for space-time coding a multiband OFDM UWB system that employs a scheme that transmits channel symbols corresponding to an incoming signal on the same sub-carrier (204.i 206.i) of different antennas (202.1 202.2).

Abstract: A system and method for data communication over a cellular communications network that allows the transmission of digital data over a voice channel using a vocoder that monitors parameters of a Levinson Durbin recursion and then uses full rate CELP if the monitored prediction error falls to below a predetermined threshold within a pre-selected number of iterations of the recursion. The system and method encode digital data to be transmitted using a continuous signal modulation technique at a selected bit rate and one or more frequencies that are selected such that the resulting modulated carrier signal is processed by the vocoder using full rate CELP as a result of the monitored prediction error.

Abstract: Disclosed is a transmitting apparatus for transmitting digital data. The transmitting apparatus includes storage unit for storing a digital data delay due to digital processing inside the transmitting apparatus; and delay information transmitting unit for transmitting delay information indicating the delay stored in the storage unit.

Abstract: An ultra-wide band (UWB) waveform encoding method is provided. The method includes receiving a data stream; generating a first encoder signal and a second encoder signal such that if the first and second encoder signals were mixed, the mixing would return a representation of the data stream; generating a sequence of pulses; mixing the first encoder signal with at least a portion of the sequence of pulses, to produce a mixing result; and mixing the second encoder signal with the mixing result, to produce a sequence of ultra wideband wavelets encoded in accordance with the data stream.

Abstract: A system and method for performing digital crest factor reduction. In one embodiment, the method is devised to suppress the signal amplitude to maintain a low signal peak to average ratio (PAR), while maintaining a desirable Error Vector Magnitude (EVM). This technique may be designed to operate in highly dynamic signal conditions.

Abstract: A method is provided for MIMO uplink communications between a base station and a wireless station with more than two antennae. The method includes: (a) negotiating between the base station and the wireless station uplink MIMO/cooperative MIMO capabilities, using a message exchange protocol in which a message exchanged comprises a field for specifying uplink MIMO/cooperative MIMO capabilities; (b) the base station receiving a request from the wireless station for data transmission; (c) the base station sending the wireless station an allocated resource and an uplink MIMO/cooperative MIMO method for uplink transmission; (e) the wireless station mapping data symbols to the allocated resource with proper pilot pattern; and (f) the base station detecting the data symbols from the channel.

Abstract: An apparatus and method for supporting distortionless vector perturbation in a Multi-Input Multi-Output (MIMO) system are provided. The apparatus includes a transmitter for supporting distortionless vector perturbation in a MIMO system. The transmitter includes a label inserter for generating a label and for inserting the label into a user information bit, a scrambler for scrambling the user information bit inserted with the label and for generating N independent candidate sequences, a modulator for modulating the N independent candidate sequences according to a modulation scheme and a vector perturbation unit for adding a limited offset vector so that the modulated symbols are mapped to a constellation point in a feasible region. The apparatus and method provide vector perturbation with improved performance and reduced computational complexity.

Abstract: In a receiver, a synchronization circuit (MIX2, OSC, C1, R1) provides a set of oscillator signals (OSI, OSQ) that are synchronized with a carrier of an amplitude-modulated signal. The set of oscillator signals (OSI, OSQ) comprises a quadrature oscillator signal (OSQ), which is substantially 90° phase shifted with respect to the carrier of the amplitude-modulated signal. A quadrature mixer (MIX2) mixes the quadrature oscillator signal (OSQ) with the amplitude-modulated signal so as to obtain a quadrature mixer output signal (MO2a). A phase-error corrector (PEC) adjusts the phase of the oscillator signals in response to a variation in the magnitude of an alternating current component (AC) in the quadrature mixer output signal (MO2a).

Abstract: A communications system redness downconverter inaccuracies in time-domain measurements or samples of received microwave communications I and Q complex signals by converting received signal to baseband taking measurements or samples of the I and Q waveforms at differing phase shifts of a demodulating carrier signal for a local oscillator or carrier tracking loop used during downconversion so that I and Q imbalances may be detected and removed by lowpass equivalent averaging for improved characterization of downconverters or for improved signal reception. In the preferred form, the phase shifts are 0 and ?/2 for a conventional measurement, and then at ?, and ?+?/2, with ?=?/4+m?/2 for an integer m for the second measurement where I and Q imbalances and baseband monlinearities are indicated by differences between the two measured or sampled signals, where ? provides for optimum error detection for reducing the errors by averaging the measurements.

Abstract: In a signal receiving circuit including a plurality of input channels, there are provided N input detection circuits 2a to 2n for receiving clock signals S1-c to SN-c included in N channels of signals S1 to SN. Each of the input detection circuits 2a to 2n detects the transition of the input signal of the corresponding channel and further confirms that the signal of the corresponding channel is being received after the transition detection to thereby detect the input of the signal of the corresponding channel. If one of the input detection circuits 2a to 2n detects the input of the signal of the corresponding channel, the selection circuit 3 selects and outputs the clock signal and the data signal in the signal of the channel of which the input is detected. The selected output signal is successively subjected to input processes through one each of the phase synchronization circuit 4, the serial/parallel conversion circuit 5, etc., which are shared by N channels.

Abstract: Methods, apparatus, and systems for generating bit-wise reliability information using a soft output Viterbi algorithm (“SOVA”) in an nT Viterbi decoder implementation devoid of 1T metric information. At each nT clock pulse 1T equivalent metric values are determined from the current nT metric information. 1T equivalent metric information is determined as values that sum to the corresponding nT metric information. Subtraction is then used to determine state metric difference information from the 1T equivalent metric values. The state metric difference information may then be used to estimate log likelihood ratio information for use in the SOVA algorithm to determine bit-wise reliability information.

Abstract: A wireless receiver that sorts packets including a packet detector, multiple correlators, and multiple packet processors. Each correlator correlates a received signal according to packet type. Each packet processor processes the received signal according to packet type. A signal power detector may be provided to initially qualify the received signal as containing a packet, and the correlators determine whether a packet is present. The correlators may be configured for sequential or simultaneous correlation. For the simultaneous correlator configuration, a correlation monitor is provided to monitor correlation results to determine if the received signal contains a packet, and if so, to determine packet type. A low SNR packet detector may be provided which correlates the received signal to detect weak packet signals.

Abstract: A receiving device includes: a first signal processor, for receiving a radio frequency signal, and converting the radio frequency signal to generate a first signal, where the radio frequency signal includes a plurality of frames; a second signal processor, coupled to the first signal processor, for performing a Fourier transform operation on the first signal according to a synchronization signal to generate an output signal; a first filter, coupled to the first signal processor, for filtering the first signal to generate a second signal; and a synchronization detection circuit, coupled to the first filter, for detecting the second signal to generate the synchronization signal. The first signal includes a channel signal and at least a portion of neighboring channel signals from neighboring channels, and the output signal corresponds to the channel signal.

Abstract: In a method for reading data from a serial data source in a parallel format, data from the serial data source is deserialized by placing a plurality of predefined units of data onto a parallel bus and asserting a deserialization clock when each of the plurality of predefined units is valid on the parallel bus. A delayed clock pulse is generated a predetermined amount of time after each assertion of the deserialization clock. Each delayed pulse is repeated so as to generate an end point repeated clock pulse corresponding to each delayed pulse wherein the predetermined amount of time is an amount of time that ensures that each predefined unit of data on the parallel bus is valid when each end point repeated clock pulse is asserted.