Patent application number | Description | Published |
20090252264 | LOW-COMPLEXITY DIGITAL RADIO INTERFACE - A radio integrated circuit includes, in part, an analog front end block, an analog-to-digital converter responsive to the analog-front end block, a digital signal processor responsive to the analog-to-digital converter and adapted to generate in-phase and quadrature signals, and a serial communication interface configured to receive and transmit the in-phase and quadrature signals. The serial communication interface supplies a gain control signal to the analog front end block when a switch disposed in the radio integrated circuit is in a first position. When the switch is in a second position, a gain control block disposed in the radio integrated circuit receives a gain control signal from the analog-to-digital converter and supplies the gain control signal to the analog front end block. The digital signal processor may be configured to interleave the in-phase and quadrature signals. | 10-08-2009 |
20090258625 | GAIN PARTITIONING IN A RECEIVER - An automatic gain control loop disposed in a receiver is adapted to compensate for varying levels of out of band interference sources by adaptively controlling the gain distribution throughout the receive signal path. One or more intermediate received signal strength indicator (RSSI) detectors are used to determine a corresponding intermediate signal level. The output of each RSSI detector is coupled to an associated comparator that compares the intermediate RSSI value against a corresponding threshold. The take over point (TOP) for gain stages is adjusted based in part on the comparator output values. The TOP for each of a plurality of gain stages may be adjusted in discrete steps or continuously. | 10-15-2009 |
20110096874 | WIDEBAND PERSONAL-RADIO RECORDER - Methods and apparatuses for concurrently recording multiple radio channels. A recorder includes a wideband tuner having a complex mixer for converting a received wideband RF signal to a complex signal that is then digitized. A digital front end module applies a number of complex down-mixers to the digital complex signal to generate the multiple radio channels in the baseband. Each one of the multiple radio channels in the baseband is further filtered, decimated and demodulated. A digital signal processing unit encodes each demodulated channel according to an audio compression format and stores the then encoded audio content to a storage unit. An RBDS decoder parses radio data service information associated with the stored audio content. The radio data service information is stored in a first section of the storage unit while the encoded audio content is stored in a second section of the storage unit. | 04-28-2011 |
20110105068 | WIDEBAND TUNER ARCHITECTURE - A wideband receiver system is provided to concurrently receive multiple RF channels including a number of desired channels that are located in non-contiguous portions of a radio frequency spectrum and to group the number of desired channels into a contiguous frequency band. The system includes a wideband receiver having a complex mixer for down-shifting the multiple RF channels and transforming them to an in-phase signal and a quadrature signal in the baseband. The system further includes a wideband analog-to-digital converter module that digitizes the in-phase and quadrature signals and a digital frontend module that transforms the digital in-phase and quadrature signals to baseband signals that contains only the number of desired RF channels. that are now located in a contiguous frequency band. An up-converter module up-shifts the baseband signals to a contiguous band in an IF spectrum so that the system can directly interface with commercially available demodulators. | 05-05-2011 |
20120163518 | Method and Apparatus for Broadband Data Conversion - A receiver may receive a signal and process each of a plurality of sub-bands of the received signal via a respective one of a plurality of first-type receive chains. The receiver may utilize a signal output by a first one of the plurality of the first-type receive chains to remove undesired signals from a signal output by a second one of the plurality of the first-type receive chains. The undesired signals may comprise aliases and/or harmonics of one or more signals that fall within a sub-band of the first one of the plurality of the first-type receive chains. The receiver may downconvert, filter, and digitize each of the plurality of sub-bands via a corresponding one of the plurality of the first type receive chains. The received signal may encompass the cable television band, and each of the plurality of sub-bands may comprise a plurality of cable television channels. | 06-28-2012 |
20130128716 | Method and Apparatus for Band Separation for Multiband Communication Systems - Aspects of a method and apparatus for band separation for multiband communication systems are provided. One or more circuits for use in a transceiver may comprise a triplexer and a leakage processing module. The triplexer may comprise a multiband port, a Multimedia Over Coaxial Alliance (MoCA) port, a television upstream port, and a television downstream port. The leakage processing module may comprise a television downstream input port, a cable television downstream output port, a MoCA port, and a cable television upstream port. The leakage processing module may be operable to (1) process a MoCA signal to generate a first compensation signal; (2) process a cable upstream signal to generate a second compensation signal; (3) process a filtered signal based at least in part on the first and second compensation signals; and (4) output the processed filtered signal via the cable television downstream output port of said leakage processing module. | 05-23-2013 |
20130135983 | METHOD AND SYSTEM FOR INTERFERENCE AVOIDANCE IN A MULTIPROTOCOL COMMUNICATION SYSTEM - Methods and systems for interference avoidance in a multi-protocol communication system may comprise receiving signals in a first communications protocol (FCP) in a first frequency range (FFR), configuring channel usage in a second communications protocol (SCP) in a second frequency range (SFR) based on the received signals to control interference from the SFR to the FFR. Signals may be communicated over coaxial cables based on the configuration of channel usage in the SCP in the SFR based on the received signals, such that aliased signals do not excessively degrade performance of the FCP. The FFR may comprise a cable or satellite television frequency range. The FCP may comprise data over cable service interface standard (DOCSIS). The SCP may comprise multimedia over coaxial alliance (MoCA) standard. The configuring channel usage in the SCP may comprise varying bit loading, power levels, or degree of modulation of signals transmitted over the SCP. | 05-30-2013 |
20130205349 | METHOD AND SYSTEM FOR INTEGRATED STACKING FOR HANDLING CHANNEL STACKING OR BAND STACKING - A satellite reception assembly may comprise a housing configured to support receipt and handling of a plurality of satellite signals. The housing may comprise circuitry incorporating integrated stacking architecture for supporting and/or providing channel and/or band stacking whereby particular channels or bands, from multiple satellite signals that are received via the satellite reception assembly, may be combined onto a single output signal that may be communicated from the satellite reception assembly to a gateway device for concurrent distribution thereby to a plurality of client devices serviced by the gateway device. | 08-08-2013 |
20130230078 | Configurable, Highly-Integrated Satellite Receiver - A direct broadcast satellite (DBS) reception assembly may comprise an integrated circuit that is configurable between or among a plurality of configurations based on content requested by client devices served by the DBS reception assembly. In a first configuration, multiple satellite frequency bands may be digitized by the integrated circuit as a single wideband signal. In a second configuration, the satellite frequency bands may be digitized by the integrated circuit as a plurality of separate narrowband signals. The integrated circuit may comprise a plurality of receive paths, each of the receive chains comprising a respective one of a plurality of low noise amplifiers and a plurality of analog-to-digital converters. | 09-05-2013 |
20140037030 | GAIN PARTITIONING IN A RECEIVER - An automatic gain control loop disposed in a receiver is adapted to compensate for varying levels of out of band interference sources by adaptively controlling the gain distribution throughout the receive signal path. One or more intermediate received signal strength indicator (RSSI) detectors are used to determine a corresponding intermediate signal level. The output of each RSSI detector is coupled to an associated comparator that compares the intermediate RSSI value against a corresponding threshold. The take over point (TOP) for gain stages is adjusted based in part on the comparator output values. The TOP for each of a plurality of gain stages may be adjusted in discrete steps or continuously. | 02-06-2014 |
20140104499 | WIDEBAND TUNER ARCHITECTURE - A wideband receiver system is provided to concurrently receive multiple RF channels including a number of desired channels that are located in non-contiguous portions of a radio frequency spectrum and to group the number of desired channels into a contiguous frequency band. The system includes a wideband receiver having a complex mixer for down-shifting the multiple RF channels and transforming them to an in-phase signal and a quadrature signal in the baseband. The system further includes a wideband analog-to-digital converter module that digitizes the in-phase and quadrature signals and a digital frontend module that transforms the digital in-phase and quadrature signals to baseband signals that contains only the number of desired RF channels that are now located in a contiguous frequency band. An up-converter module up-shifts the baseband signals to a contiguous band in an IF spectrum so that the system can directly interface with commercially available demodulators. | 04-17-2014 |
20140298396 | Method and Apparatus for Band Separation for Multiband Communication Systems - Aspects of a method and apparatus for band separation for multiband communication systems are provided. One or more circuits for use in a transceiver may comprise a triplexer and a leakage processing module. The triplexer may comprise a multiband port, a Multimedia Over Coaxial Alliance (MoCA) port, a television upstream port, and a television downstream port. The leakage processing module may comprise a television downstream input port, a cable television downstream output port, a MoCA port, and a cable television upstream port. The leakage processing module may be operable to (1) process a MoCA signal to generate a first compensation signal; (2) process a cable upstream signal to generate a second compensation signal; (3) process a filtered signal based at least in part on the first and second compensation signals; and (4) output the processed filtered signal via the cable television downstream output port of said leakage processing module. | 10-02-2014 |
20150026736 | METHOD AND SYSTEM FOR INTEGRATED STACKING FOR HANDLING CHANNEL STACKING OR BAND STACKING - A satellite reception assembly may comprise a housing configured to support receipt and handling of a plurality of satellite signals. The housing may comprise circuitry incorporating integrated stacking architecture for supporting and/or providing channel and/or band stacking whereby particular channels or bands, from multiple satellite signals that are received via the satellite reception assembly, may be combined onto a single output signal that may be communicated from the satellite reception assembly to a gateway device for concurrent distribution thereby to a plurality of client devices serviced by the gateway device. | 01-22-2015 |
20150085904 | Modular Microwave Backhaul Outdoor Unit - A microwave backhaul system may comprise a monolithic integrated circuit comprising an on-chip transceiver, digital baseband processing circuitry, and auxiliary interface circuitry. The on-chip transceiver may process a microwave signal from an antenna element to generate a first pair of quadrature baseband signals and convey the first pair of phase-quadrature baseband signals to the digital baseband processing circuitry. The auxiliary interface circuitry may receive one or more auxiliary signals from a source that is external to the monolithic integrated circuit and convey the one or more auxiliary signals to the digital baseband processing circuitry. The digital baseband processing circuitry may be operable to process signals to generate one or more second pairs of phase-quadrature digital baseband signals. | 03-26-2015 |
20150087226 | Microwave Backhaul System Supporting Multiple Installation Configurations - A monolithic integrated circuit for use in a microwave backhaul system may comprise a plurality of microwave transceivers and outdoor-unit to indoor-unit (ODU/IDU) interface circuitry. The monolithic integrated circuit may be configurable into an all-outdoor configuration in which the ODU/IDU interface circuitry is disabled. The monolithic integrated circuit may be configurable into a split-indoor-and-outdoor configuration in which the ODU/IDU interface circuitry is enabled to communicate signals between an outdoor unit of the microwave backhaul system and an indoor unit of the microwave backhaul system. While the monolithic integrated circuit is configured in the split-indoor-and-outdoor configuration, the ODU/IDU interface circuitry may be configurable to operate in at least a non-stacking mode and a stacking mode. | 03-26-2015 |