Abstract: Embodiments of the present invention significantly decrease the processing requirements as well as the cost of digital television receivers. In an embodiment, processing requirements of both hardware and software components in digital television receivers are lowered by generating the channel map without regard to channel map information present in a Virtual Channel Table (VCT). In another embodiment, significant recurring portions of an ATSC signal can be neglected with no processing power, cost, and time spent thereon. In another embodiment, processing typically used to process channel map information contained in the VCT portion of the ATSC signal is freed and may instead be used to process other information, thereby enabling further enhancements and features in digital television services.

Abstract: The method and apparatus in accordance with the present invention receives bits, writes the bits row-by-row in a matrix, reads the bits column-by-column from the matrix, groups and rotates the bits read column-by-column from the matrix so as to evenly separate the bits in position, frequency, space over one symbol period.

Abstract: A single chip radio transceiver includes circuitry that enables received wideband RF signals to be down converted to base band frequencies and base band signals to be up converted to wideband RF signals prior to transmission without requiring conversion to an intermediate frequency. The circuitry includes a low noise amplifier, automatic frequency control circuitry for aligning the LO frequency with the frequency of the received RF signals, signal power measuring circuitry for measuring the signal to signal and power ratio and for adjusting frontal and rear amplification stages accordingly, and finally, filtering circuitry to filter high and low frequency interfering signals including DC offset.

Abstract: A programmable antenna assembly includes a configurable antenna structure, a configurable antenna interface, and a control module. The configurable antenna structure includes a plurality of antenna elements that, in response to an antenna configuration signal, are configured elements into at least one antenna. The configurable antenna interface module is coupled to the at least one antenna and, based on an antenna interface control signal, provides at least one of an impedance matching circuit and a bandpass filter. The control module is coupled to generate the antenna configuration signal and the antenna interface control signal in accordance with a first frequency band and a second frequency band such that the at least one antenna facilitates at least one of transmitting and receiving a first RF signal within the first frequency band and facilitates at least one of transmitting and receiving a second RF signal within the second frequency band.

Abstract: Methods and systems for reconfigurable soft-output bit demapping, reconfigurable for different modes of operation (i.e., different transmitter/receiver configurations) and for different modulation schemes are provided. In an embodiment, a reconfigurable soft-output bit demapping system includes a mode/modulation independent equalizer, a plurality of mode/modulation independent soft-slicers coupled to the outputs of the equalizer, a plurality of mode/modulation independent post-scalers coupled to the outputs of the soft-slicers, and a mode-dependent coefficient calculator. The coefficient calculator generates parameters for configuring the equalizer, the soft-slicers, and the post-scalers according to the used mode of operation and modulation scheme.

Abstract: An integrated receiver with channel selection and image rejection substantially implemented on a single CMOS integrated circuit is described. A receiver front end provides programmable attenuation and a programmable gain low noise amplifier. Frequency conversion circuitry advantageously uses LC filters integrated onto the substrate in conjunction with image reject mixers to provide sufficient image frequency rejection. Filter tuning and inductor Q compensation over temperature are performed on chip. The filters utilize multi track spiral inductors with shields to increase circuit Q. The filters are tuned using local oscillators to tune a substitute filter, and frequency scaling during filter component values to those of the filter being tuned. In conjunction with filtering, frequency planning provides additional image rejection. The advantageous choice of local oscillator signal generation methods on chip is by PLL out of band local oscillation and by direct synthesis for in band local oscillator.

Abstract: An integrated circuit includes first, second and third circuits, a clock module and a rate adapting module. The first circuit causes frequency dependent noise and is clocked based on a clock signal. The second circuit is rate dependent and is clocked based on an operation dependent clock signal. The third circuit is susceptible to adverse performance when the frequency dependent noise has a component within a given frequency range. The clock module generates a clock signal having a rate such that frequency dependent noise components associated with the clock signal are outside the given frequency range. The rate adapting module is coupled to produce the operation dependent clock signal from the clock signal.

Abstract: A method of installing multiple over-the-air antennas is disclosed. The method includes the steps of mounting a satellite antenna to a installation surface, such that the mounting allows the satellite antenna to be aimed at a satellite, attaching a broadband access antenna to one of the installation surface and a portion of the satellite antenna, such that the attaching allows the broadband access antenna to be aimed at a broadband access source, connecting first wiring from the broadband access antenna to a first downconverter and second wiring from the satellite antenna to a second downconverter, providing outputs of the first and second downconverters to a cable in communication with at least a satellite receiver and positioning, on at least a coarse scale, the satellite antenna and the broadband access antenna such that they are approximately pointed at the satellite and the broadband access source, respectively.

Abstract: Apparatuses and systems for dissipating ESD events are provided. In an embodiment, an integrated circuit (IC) device, includes a ground rail, a positive supply rail, a negative supply rail, a circuit block, a plurality of contact pads, and a coupling system. Each of the ground rail, positive supply rail, negative supply rail, and the circuit block are coupled to a respective contact pad of the plurality of contact pads. The contact pad coupled to the circuit block is configured to swing from a voltage of the negative rail to a voltage of the positive rail. The coupling system couples each contact pad of the plurality of contact pads to all other contact pads of the plurality of contact pads, whereby an electrostatic discharge (ESD) event between two contacts pads of the plurality of contact pads can be dissipated.

Abstract: An antenna structure includes first and second antennas. The first antenna has a first geometry corresponding to a first frequency. The second antenna has a second geometry corresponding to a second frequency. The second antenna is proximal to the first antenna and utilizes electrical-magnetic properties of the first antenna to transceive signals at the second frequency.

Abstract: A method for successive interference cancellation in code division multiple access (CDMA) systems is provided that uses variable interferer weights. This method allows interfering signals to be cancelled in order to recover a transmitted data signal. This method involves receiving the data signal subject to interference from at least one interfering signal. A first interfering signal is identified. Then an interferer weight coefficient associated with the first interfering signal is generated based on its signal strength and SF upon acquisition of the SF. This SF may be monitored such that the Interferer weight may be adjusted when the SF changes based on the detected changes. This allows the first interfering signal to be cancelled from the received data signal using the interferer weight coefficient. These processes may then be reiterated for other interfering signals. It is then possible to recover the transmitted data signal from the received data signal.

Abstract: Collection and concurrent integration of supplemental information related to currently playing media. Based on certain characteristics associated with the media, additional information related thereto is identified and output along with the media itself. This provides an enhanced experience for a user, in that, this supplemental information augments the presentation of the media to the user. Such supplemental content can be any one or combination of a wide variety of types including textual information, image content, audio content, video content, etc. This supplemental content may be output automatically in conjunction with the media (e.g., when such media is being output). Alternatively, the supplemental content may be output upon the authorization of a user. The supplemental content may be output in a predetermined location (e.g., location within a video display). Alternatively, such supplemental content may be output within an unused (or infrequently used) area of such a video display.

Abstract: An apparatus and method is disclosed to calculate the actual received desired channel power from the downstream transmit power of a Cable Modem Termination System (CMTS) when operating at the nominal line voltage and/or at the normal room temperature as per the DOCSIS specification. A Set-top Device produces a Downstream Power Management (DPM) gain measurement signal having a known power level. The Set-top Device embeds the DPM gain measurement signal onto a received downstream multi-channel communication signal. After embedding the DPM gain measurement signal onto the downstream multi-channel communication signal, the Set-top Device downconverts the combined DPM gain measurement signal and downstream multi-channel communication signal to recover one or more communication channels containing information of a broadcast.

Abstract: A system and method for encoding dynamic image information for an image generated by a computer application executing on a processor. Various aspects of the present invention may comprise determining a first set of information describing a reference image. A second set of information may be determined for describing an image, wherein the second set of information comprises information indicative of movement between the image and the reference image. For example, a set of primary movement directions may be determined based at least in part on the computer application generating the image. Such set of primary movement directions may be utilized for analyzing the image relative to the reference images. The difference between the image and the reference image may, for example, be analyzed using at least one of the set of primary movement directions. A movement direction may, for example, be utilized to describe the image.

Abstract: An audio/video (A/V) capture device and method that capture audio and video in a spatially synchronized manner. In one implementation, the device and method automatically adjust the shape of a spatial directivity pattern of a microphone array used for acquiring audio so that the pattern is spatially synchronized with an amount of video zoom being applied by a video acquisition section to acquire video. For example, a wider spatial directivity pattern may automatically be used during wide-angle shots and a narrower spatial directivity pattern may automatically be used during close-ups. This beneficially allows for the consistent attenuation of audio signals received from audio sources that lie outside the field of view of the video acquisition section while passing or even enhancing audio signals received from audio sources that lie within the field of view even though the width of the field of view has changed.

Abstract: LDPC codes robust to non-stationary narrowband ingress noise. Particularly designed LDPC codes are adapted to address deleterious noise-effects incurred within LDPC coded signals that propagate via a communication channel (such as from a transmitting communication device to a receiving communication device). Such LDPC matrices employed for encoding and/or decoding such LDPC coded signals are composed of sub-matrices (e.g., all-zero values sub-matrices and/or CSI (Cyclic Shifted Identity) sub-matrices). The sub-matrices are generally uniform in size and square in shape. Based on certain operational conditions, such as communication channel noise, various operations within a communication device are adaptively modified (e.g., signaling, modulation, demodulation, symbol mapping, metric generation, decoding, etc.).

Abstract: A system and method for variable data transmission rate resolution is provided. The system implements a method comprising incrementing a port transmission rate using a variable resolution; and transmitting data through the port using the incremented port transmission rate.

Abstract: Methods and apparatus for providing a bus interface are disclosed. An example method for providing a bus interface includes operating first circuitry using a first power supply voltage in a normal operating mode, where the first circuitry includes at least a portion of datapath circuitry of the bus interface. The example method further includes powering down the first circuitry in a low power operating mode and operating second circuitry using the first power supply voltage in the normal operating mode. The example method also includes operating the second circuitry using a second power supply voltage in the low power operating mode. The second circuitry includes a power management control circuit adapted to receive a power management event indication signal. Responsive to the power management event indication signal, the control circuit provides at least one of an in-band power management indication and an out-of-band power management indication to one or more devices in a computing system.

Abstract: A system and method for performing frame loss concealment (FLC) when portions of a bit stream representing an audio signal are lost within the context of a digital communication system. The system and method utilizes a plurality of different FLC techniques, wherein each technique is tuned or designed for a different kind of audio signal. When a frame is lost, a previously-decoded audio signal corresponding to one or more previously-received good frames is analyzed. Based on the result of the analysis, the FLC technique that is most likely to perform well for the previously-decoded audio signal is chosen to perform the FLC operation for the current lost frame. In one implementation, the plurality of different FLC techniques include an FLC technique designed for music, such as a frame repeat FLC technique, and an FLC technique designed for speech, such as a periodic waveform extrapolation (PWE) technique.

Abstract: The feedback of reinterleaved correctly decoded data blocks to a decoder is provided for use in channel decoding operations of channel coded word containing data block. Once a properly decoded data block has been determined, feedback of constraints on the estimated bit sequences decoded data characteristics to a turbo decoder assist in additional decoding operations. Estimated bit sequences may be selected from those trellises that pass through the constraint imposed by knowledge of re-interleaving properly decoded data blocks. This allows the decoder to generate solutions having a minimum probability of error that are also confined by the re-interleaved properly decoded data blocks.