Patent application number | Description | Published |
20080272813 | Analog To Digital Converter Clock Synchronizer - The present application generally relates to apparatuses such as television signal processing apparatus that process radio frequency signals. More specifically, the present application is particularly useful in integrated circuits that must receive a radio frequency signal and simultaneously use circuitry where the timing of the operations are based on the received RF signal and circuitry where the timing is based on a fixed rate signal with sensitivity to clock jitter. According to an exemplary embodiment, the apparatus comprises, a first input (RefClk), a second input (PllClk), an output (CLK | 11-06-2008 |
20100020235 | Co-channel interference remover - A receiver (a) translates a frequency spectrum of a received wideband signal such that a narrowband region of the wideband signal is applied to a filter for use in removing narrowband interference; and (b) tracks the narrowband interference by adjusting the frequency translation as a function of signal levels in narrowband regions adjacent to the narrowband interference region. | 01-28-2010 |
20100029235 | Co-channel interference detector - A receiver searches for and identifies the locations of narrowband interference by sweeping across a wideband frequency channel to measure power levels of at least three narrowband frequency regions and determines if at least one interfering signal is present as a function of the measured power levels. | 02-04-2010 |
20100289965 | EQUALIZER BASED SYMBOL TIMING RECOVERY WITH SYMBOL ENABLED CONTROL - A receiver is an ATSC (Advanced Television Systems Committee)-receiver and comprises a controller and an equalizer, which comprises a feed-forward filter and a feed-back filter. The feed-forward filter comprising at least one tap associated with at least one tap coefficient value. The controller determines a location of at least one tap of the equalizer; and if that location is close to a tap boundary (or edge) of the equalizer, the at least one tap of the equalizer is shifted forward or backward by at least one sample position. | 11-18-2010 |
20110069747 | METHOD AND APPARATUS FOR DETERMINING CHANNELS IN A SIGNAL - The determination and identification of channels in a signal is an important aspect of the operation of a signal receiver. A method ( | 03-24-2011 |
20110074500 | APPARATUS AND METHOD FOR DETERMINATION OF SIGNAL FORMAT - The determination of the signal modulation format for a channel is an important aspect of the operation of a signal receiver. A method ( | 03-31-2011 |
20120269277 | RELIABLE DIVERSITY ARCHITECTURE FOR A MOBILE DTV SYSTEM - A digital data stream comprises alternating groups of information blocks and groups of parity blocks, each group of information blocks includes multiple information blocks and each group of parity blocks includes multiple parity blocks. An apparatus for receiving a digital data stream comprises a demodulator that receives and demodulates a digital data stream. An equalizer compensates for distortions in the digital data stream. A delay buffer generates a first stream of digital data representing the compensated digital data stream and a second stream of digital data representing a delayed version of the compensated digital data stream. A forward error correction block receives and processes the first and second streams of digital data from the delay buffer, and outputs an error corrected stream of digital data. A transport block receives and processes the error corrected stream from the forward error correction block for display | 10-25-2012 |
20130078926 | APPARATUS AND METHOD FOR SETTING THE OPERATION OF AN ANTENNA - A method and apparatus for allowing a configuration of the operation of one or more antennas in a device, such as a gateway device or other network device, is provided. The method and apparatus operate in a manner such that the configuration allows a static configuration of a specific antenna in a multiple antenna device or system. In some cases the accompanying transmission and reception circuit are configured to operate or transact specifically with another device (e.g., network client device). | 03-28-2013 |
20130128956 | APPARATUS AND METHOD FOR RECEIVING SIGNALS - A method of receiving a signal contains a first data stream at a first encoding rate and a second stream at a second encoding rate, outputting content from the first data stream if an error value of the first data stream is below a first error value, and outputting content from the second data stream if the error value of the first stream is above the first error value. An apparatus has a demodulator that receives a signal containing a first portion encoded at a first encoding rate and a second portion encoded at a second encoding rate, a controller that determines whether an error rate of a decoded first portion is above a first error rate, and an output driver that provides a video signal from a decoded second portion if the decoded first portion is above the first error rate. | 05-23-2013 |
20140313890 | PROFILING WI-FI CHANNEL CONGESTION AND INTERFERENCE TO OPTIMIZE CHANNEL SELECTION - A method and apparatus are described including receiving, in a wireless receiver, channel interference and congestion window measurements, storing the received channel interference and congestion window measurements, determining a time period of interest, performing data aging responsive to the time period of interest, calculating channel interference and congestion score for an existing channel using data remaining after data aging was performed, calculating channel interference and congestion score for an alternative channel using data remaining after data aging was performed and selecting one of the existing channel and the alternative channel. | 10-23-2014 |
Patent application number | Description | Published |
20090262795 | Adaptive equalizer tap stepsize - An apparatus comprises an adaptive filter having groups of taps, each group comprising at least one tap having an associated tap value; and a controller for selecting a scaling factor for at least one group of taps as a function of tap values of the group. The controller further adjusts an error value as a function of the selected scaling factor. The adaptive filter adapts tap values of the at least one group of taps as a function of the adjusted error value. | 10-22-2009 |
20090285274 | EQUALIZER LOCK DETECTION BASED ON THE LOCATION OF RECEIVED SIGNAL POINTS - An ATSC (Advanced Television Systems Committee-Digital Television) receiver comprises an equalizer and a lock detector. The equalizer provides a sequence of received signal points from a constellation space, the constellation space having an inner region and one, or more, outer regions. The lock detector determines equalizer lock as a function of the number of received signal points falling in the one, or more, outer regions. | 11-19-2009 |
20140189751 | BROADBAND ASSISTED CHANNEL CHANGE - A receiver reduces a time delay associated with a change between two broadcast channels by detecting an activity associated with a channel change operation and requesting, via a broadband interface, data corresponding to the newly requested broadcast channel. The broadband data corresponding to the new broadcast channel is displayed while the broadcast channel is tuned and processed by the receiver. Upon processing the broadcast channel, the displayed broadband data is replaced by the processed broadcast data. | 07-03-2014 |