Abstract: Systems and methods in accordance with embodiments of the invention convert satellite signals to an intermediate frequency signal and selecting modulated digital data within the satellite signals for content decoding. One embodiment includes an optical low noise block converter (LNB) including a digital channelizer switch configured to select at least one content channel from an input signal including a plurality of content channels modulated onto a carrier and to output an optical signal including the selected at least one content channel.

Abstract: Systems and methods in accordance with embodiments of the invention include converting satellite signals to an intermediate frequency signal for content decoding, and selecting modulated digital data within the satellite signals for content decoding using digital signal processing. One embodiment includes a system configured to select at least one content channel from an input signal including a plurality of content channels modulated onto a carrier, the system including: a digital channelizer switch including: a high speed analog to digital converter configured to digitize an intermediate frequency signal; a digital channelizer configured to digitally tune a content channel from the digitized intermediate frequency signal; and a high speed digital to analog converter configured to generate an analog output signal using the content channel digitally tuned from the digitized intermediate frequency signal by the digital channelizer.

Abstract: Methods and systems for frequency generation may comprise a circuit with a first input coupled to receive a first satellite signal at a first satellite downlink frequency, a second input coupled to receive a second satellite signal at a second satellite downlink frequency, and a first analog-to-digital converter (ADC) having an input coupled to receive the first satellite signal and an output. The first ADC may be configured to create a first digital output signal representing the first satellite signal. A second ADC having an input coupled to receive the second satellite signal and an output may be configured to create a second digital output representing the second satellite signal. The circuit may comprise a dielectric resonator oscillator having an output and a clock generator circuit having an input coupled to the oscillator output and configured to output one or more clocks used by the first and second ADCs.

Abstract: Systems and methods for correcting frequency error in a received signal include: receiving a satellite signal, the satellite signal having a bandwidth and a center frequency; determining the profile of the satellite signal; computing the center frequency of the satellite signal based on the profile of the received signal; and generating a reference signal at the computed center frequency. The systems and methods may further include computing a center frequency of each of a plurality of satellite signals based on the computed center frequency. Determining the profile may include sweeping a tuner above and below a given reference frequency; measuring the received signal strength during the sweeping operation; and determining the profile based on the received signal strength.

Abstract: Systems and methods for canceling cross-coupled satellite signals in a LNB IC include receiving a first satellite signal at a first pin of the LNB IC and adjusting the first satellite signal by applying a first adaptive filter to the first satellite signal signal, the first adaptive filter having first filter coefficients; combining the adjusted first satellite signal with a second satellite signal received at a second pin of the LNB IC to generate a first combined satellite signal; measuring the total output power of the combined satellite signal; changing the filter coefficients of the first adaptive filter; remeasuring the total output power of the first combined satellite signal after the changing of the first filter coefficients to determine whether the total power of the first combined satellite signal has decreased.

Abstract: Systems and methods are provided for correcting frequency drift in satellite receivers based on quadricorrelator carrier frequency tracking. An intermediate frequency corresponding to a received satellite signal may be converted to a digital baseband signal. Frequency related information may be obtained based on quadricorrelator carrier frequency tracking of the digital baseband signal, and the information may be used in generating a quadricorrelator corrected channel. The quadricorrelator corrected channel may converge to the centroid of its spectrum. Thus, the advanced quadricorrelator frequency tracking may allow tracking and correcting frequency drift during baseband signal processing.

Abstract: A low noise block circuit includes a first input signal trace configured to receive a first satellite signal centered at a first frequency; a second signal trace configured to receive a second satellite signal centered at a second frequency; a combiner having a first input connected to the first input signal trace and a second input connected to the second signal trace, and configured to combine the first and second satellite signals to generate and output a combined satellite signal; and an analog-to-digital converter element having a first input coupled to receive the combined satellite signal, and configured to convert the combined satellite signal from an analog signal to a digital signal.

Abstract: Systems and methods are provided for selecting data from intermediate frequency signals, corresponding to received signals (e.g., satellite signals) carrying modulated data, using digital channelizer switches. An example digital channelizer switch may comprise a plurality of high speed analog-to-digital converters configured to digitize the intermediate frequency signals; a plurality of digital channelizers configured to digitally tune data from the digitized intermediate frequency signals; a multiplexer configured to select one or more digitized intermediate frequency signal generated by the plurality of high speed analog-to-digital converters as inputs to the plurality of digital channelizers; and a high speed digital-to-analog converter configured to generate an analog output signal using digitally tuned data by the digital channelizer, from at least one digitized intermediate frequency signal.

Abstract: A dielectric resonator oscillator includes a dielectric resonator; a transmission line disposed adjacent the dielectric resonator; an active device having an input electrically connected to the transmission line; a matching network having an input electrically connected to an output of the active device and an output configured to be connected to a load; wherein both the transmission line and the active device are positioned sufficiently close to the dielectric resonator to form part of a resonant circuit with the dielectric resonator.

Abstract: A frequency translation module for a broadband multi-channel communication system may include an analog signal converter, a digital channel selection device, and a digital-to-analog (D/A) converter. The analog signal converter is configured to receive a plurality of analog signals, to select analog signals residing in a predefined frequency band, and to convert each of the selected analog signals into a digital signal. The digital channel selection device is configured to process digital signals corresponding to the selected analog signals and to generate a composite output of digital signals representative of the selected analog signals. The D/A converter is configured to translate the composite output to an analog signal output decodable by a receiver. Further, the frequency translation module may include a mixer configured to upconvert the analog signal output to a frequency decodable by the receiver.

Abstract: Systems and methods in accordance with embodiments of the invention include converting satellite signals to an intermediate frequency signal for content decoding, and selecting modulated digital data within the satellite signals for content decoding using digital signal processing. One embodiment includes a system configured to select at least one content channel from an input signal including a plurality of content channels modulated onto a carrier, the system including: a digital channelizer switch including: a high speed analog to digital converter configured to digitize the intermediate frequency signal; a digital channelizer configured to digitally tune a content channel from the digitized intermediate frequency signal; and a high speed digital to analog converter configured to generate an analog output signal using the content channel digitally tuned from the digitized intermediate frequency signal by the digital channelizer.

Abstract: A structurally compact connector that dissipates heat quickly and efficiently is disclosed. The connector includes a housing having a plug receiving space. An elastic member is positioned on the housing, and is displaceable outward from the housing. A protrusion is positioned on an inner surface of the elastic member and extends into the plug receiving space. A thermally conductive element is disposed on an outer surface of the elastic member and is contactable with a heat sink positioned outside of the housing.

Abstract: Systems and methods in accordance with embodiments of the invention include converting satellite signals to an intermediate frequency signal for content decoding, and selecting modulated digital data within the satellite signals for content decoding using digital signal processing. One embodiment includes a system configured to select at least one content channel from an input signal including a plurality of content channels modulated onto a carrier, the system including: a digital channelizer switch including: a high speed analog to digital converter configured to digitize the intermediate frequency signal; a digital channelizer configured to digitally tune a content channel from the digitized intermediate frequency signal; and a high speed digital to analog converter configured to generate an analog output signal using the content channel digitally tuned from the digitized intermediate frequency signal by the digital channelizer.

Abstract: A receiver for a multi-channel communication system can include a down-converter device, an analog-to-digital converter (ADC), and a plurality of digital channel selection devices. The down-converter device can be configured to down-convert a plurality of analog signals from the multi-channel communication system to a plurality of corresponding low intermediate frequency (IF) signals. The ADC can be configured to convert the plurality of corresponding low-IF signals to a plurality of digital signals. Further, each digital channel selection device from the plurality of digital channel selection devices can be configured to select a digital signal corresponding to a channel of interest from the plurality of digital signals for further processing.

Abstract: Systems and methods for performing phase tracking scheme for an Analog to Digital converter based tuner. In many embodiments, a phase tracking scheme is used that includes a phase locked loop that corrects the phase of the output signals and an amplitude modulation compensator that modulates the amplitude of the output digital signals to compensate for phase noise based upon the received output digital signals.

Abstract: The present invention includes a method of determining a phase estimate for an input signal having pilot symbols. The method includes receiving a plurality of pilot symbols, and then multiplying two or more pilot symbol slots by corresponding correlator coefficients to correct a phase estimate of the input signal.

Abstract: An update algorithm for equalizer coefficients in a communications system using phase correction symbols. Instead of using a traditional all symbols slicer update algorithm, the equalizer is updated during phase correction symbols for optimal performance in low signal-to-noise ratio conditions. In lower signal-to-noise ratio conditions, the equalizer uses a phase correction circuit to compensate for distortion caused by a communication channel when a demodulated data stream contains an unknown phase offsets resulting from a fast dynamic distortion. More specifically, the phase correction circuit uses a phase correction signal to correct for the unknown phase offsets in a demodulated data stream in lower signal-to-noise ratio conditions. The equalizer then corrects for distortion caused by the communication channel based upon the phase corrected demodulated data stream.

Abstract: A structurally compact connector that dissipates heat quickly and efficiently is disclosed. The connector includes a housing having a plug receiving space. An elastic member is positioned on the housing, and is displaceable outward from the housing. A protrusion is positioned on an inner surface of the elastic member and extends into the plug receiving space. A thermally conductive element is disposed on an outer surface of the elastic member and is contactable with a heat sink positioned outside of the housing.

Abstract: The present invention includes a method of determining a phase estimate for an input signal having pilot symbols. The method includes receiving a plurality of pilot symbols, and then multiplying two or more pilot symbol slots by corresponding correlator coefficients to correct a phase estimate of the input signal.

Abstract: Certain aspects of a method and system for satellite communication are disclosed. Aspects of one method may include a receiver that handles digital broadcasting. The receiver may be enabled to dynamically vary spacing between two or more pilots and/or the size of one or more pilots within at least one frame based on a determined symbol rate. The size of each of a plurality of received programs may be determined and the spacing between two or more pilots may be dynamically varied based on the determined size of each of the plurality of received programs.