| Hughes Network Systems, LLC Patent applications |
| Patent application number | Title | Published |
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| 20120137210 | COMPUTER NETWORKING SYSTEM AND METHOD WITH JAVASCRIPT INJECTION FOR WEB PAGE RESPONSE TIME DETERMINATION - An apparatus, method, and non-transitory computer-readable medium comprising program code which when executed by an apparatus causes the apparatus to effect the method, for pre-fetching web content. Preferably, a proxy server performs the pre-fetching. Techniques such, for example, as executing Javascript in pre-fetched pages, modifying pre-fetched pages to address URL generation involving random numbers or dates, using cookie information or browser specifics when performing pre-fetching of pages, and injecting Javascript to measure response time may be performed, by way of example. | 05-31-2012 |
| 20120136928 | COMPUTER NETWORKING SYSTEM AND METHOD WITH PRE-FETCHING USING BROWSER SPECIFICS AND COOKIE INFORMATION - An apparatus, method, and non-transitory computer-readable medium comprising program code which when executed by an apparatus causes the apparatus to effect the method, for pre-fetching web content. Preferably, a proxy server performs the pre-fetching. Techniques such, for example, as executing Javascript in pre-fetched pages, modifying pre-fetched pages to address URL generation involving random numbers or dates, using cookie information or browser specifics when performing pre-fetching of pages, and injecting Javascript to measure response time may be performed, by way of example. | 05-31-2012 |
| 20120136927 | COMPUTER NETWORKING SYSTEM AND METHOD WITH JAVASCRIPT EXECUTION FOR PRE-FETCHING CONTENT FROM DYNAMICALLY-GENERATED URL AND JAVASCRIPT INJECTION TO MODIFY DATE OR RANDOM NUMBER CALCULATION - An apparatus, method, and non-transitory computer-readable medium comprising program code which when executed by an apparatus causes the apparatus to effect the method, for pre-fetching web content. Preferably, a proxy server performs the pre-fetching. Techniques such, for example, as executing Javascript in pre-fetched pages, modifying pre-fetched pages to address URL generation involving random numbers or dates, using cookie information or browser specifics when performing pre-fetching of pages, and injecting Javascript to measure response time may be performed, by way of example. | 05-31-2012 |
| 20120136926 | COMPUTER NETWORKING SYSTEM AND METHOD WITH JAVASCRIPT EXECUTION FOR PRE-FETCHING CONTENT FROM DYNAMICALLY-GENERATED URL - An apparatus, method, and non-transitory computer-readable medium comprising program code which when executed by an apparatus causes the apparatus to effect the method, for pre-fetching web content. Preferably, a proxy server performs the pre-fetching. Techniques such, for example, as executing Javascript in pre-fetched pages, modifying pre-fetched pages to address URL generation involving random numbers or dates, using cookie information or browser specifics when performing pre-fetching of pages, and injecting Javascript to measure response time may be performed, by way of example. | 05-31-2012 |
| 20120124453 | METHOD AND APPARATUS FOR A PARAMETERIZED INTERLEAVER DESIGN PROCESS - A parameterized interleaver design process is provided, which optimizes the design for interleavers of any size, and can be completely specified using only a few design parameters. According to the parameterized interleaver design process an interleaver π(i) of a length N is generated. A number of subpermutation masks are defined, and a first intermediate interleaver permutation is partitioned into a number of subgroups, wherein the number of subgroups corresponds with the number of subpermutation masks. Each of the subgroups of the first intermediate interleaver permutation is partitioned into a number of further subgroups, and each of the subpermutation masks is applied to each of the further subgroups of a corresponding subgroup of the first intermediate interleaver permutation, resulting in a corresponding portion of a second intermediate interleaver permutation. The resulting interleaver π(i) is generated based at least in part on the first and second intermediate interleaver permutations. | 05-17-2012 |
| 20110275338 | PHASE PULSE SYSTEM AND METHOD FOR BANDWIDTH AND ENERGY EFFICIENT CONTINUOUS PHASE MODULATION - A new pulse shape for CPM is introduced which is obtained by a linear combination of well-known RC and REC pulse shapes. The new pulse shape addresses the tradeoff between the width of the PSD main lobe and the rate of decay of the side lobe to improve the coded performance of multi-carrier systems affected by ACI. Also, a methodology is proposed to design and evaluate the performance of the new pulse shape for multi-carrier, coded systems based on the modulation constrained capacity. Furthermore, a binary convolutional code and the CPM modulator are concatenated using an S-random bit interleaver to lower the error floor. Finally, Laurent representation of the new pulse shape is suggested such that by retaining only the principal pulses at the receiver, complexity of the receiver can be reduced. | 11-10-2011 |
| 20110274216 | CONTINUOUS PHASE MODULATION FOR SATELLITE COMMUNICATIONS - A new coded continuous phase modulation (CPM) scheme is proposed to enhance physical layer performance of the current DVB-RCS standard for a satellite communication system. The proposed CPM scheme uses a phase pulse design and combination of modulation parameters to shape the power spectrum of CPM signal in order to improve resilience to adjacent channel interference (ACI). Additionally, it improves error rate performance at both high and low frame error rates using low complexity binary convolutional codes and S-random bit interleaving. Phase response using the proposed CPM scheme is a weighted average of the conventional rectangular and raised-cosine responses and provides optimum response to minimize frame error rate for a given data rate. | 11-10-2011 |
| 20110243562 | METHOD AND APPARATUS FOR INTEGRATED WAVEGUIDE TRANSMIT-RECEIVE ISOLATION, FILTERING, AND CIRCULAR POLARIZATION - An radio is provided for transmit-receive isolation filtering and circular polarization (INTRIFPWA) that are sealed within a metal housing of a transmitter, which can be used in microwave communication systems, including satellite based communications systems and terrestrial based microwave communication systems. | 10-06-2011 |
| 20110243043 | METHOD AND APPARATUS FOR INTEGRATED WAVEGUIDE TRANSMIT-RECEIVE ISOLATION AND FILTERING - A radio is provided for transmit-receive isolation and filtering (INTRIFWA) that are sealed and/or integrally built-in a housing of a transmitter, which can be used in microwave communication systems, including satellite based communications systems and terrestrial based microwave communication systems. | 10-06-2011 |
| 20110202820 | METHOD AND SYSTEM FOR PROVIDING LOW DENSITY PARITY CHECK (LDPC) ENCODING AND DECODING - An approach is provided for processing structure Low Density Parity Check (LDPC) codes. Memory storing edge information and a posteriori probability information associated with a structured parity check matrix used to generate Low Density Parity Check (LDPC) coded signal are accessed. The edge information represent relationship between bit nodes and check nodes, and are stored according to a predetermined scheme that permits concurrent retrieval of a set of the edge information. | 08-18-2011 |
| 20110103507 | SYSTEM AND METHOD FOR COMBINED PREDISTORTION AND INTERFERENCE CANCELLATION IN A SATELLITE COMMUNICATIONS SYSTEM - The present invention provides a communication system for use with a first source signal and a second source signal. The first source signal is on a first channel and includes M symbols, where M is an integer greater than 1. The second source signal is on a second channel and includes X symbols, where X is an integer greater than 1. The first channel is different from the second channel. The communication system includes a first modulator unit, a second modulator unit and an adder. The first modulator unit can generate a first modulated signal based on the first source signal and includes a first inter-symbol distortion estimating unit and a first stage predistortion unit. The second modulator unit can generate a second modulated signal based on the second source signal and includes a second inter-symbol distortion estimating unit and a predistortion unit. The adder can generate an added signal based on the first modulated signal and the second modulated signal. The first inter-symbol distortion estimating unit can generate a distorted symbol vector based on an estimate of a distortion of the first through (a−1)-th symbols and an estimate of a distortion of the (a+1)-th through M-th symbols, where 1≦a≦M. The first stage predistortion unit is operable to generate a predistorted symbol ã based on the symbol a of the first plurality of symbols and the distorted symbol vector. Further, a receiver unit can cancel interference in the received signals to account for adjacent channel interference. | 05-05-2011 |
| 20110075772 | SYSTEM AND METHOD FOR DYNAMIC OUTPUT BACK-OFF - A device is provided for use with an input signal including a first packet of a first modulation type in series with a second packet of a second modulation type. The device includes a gain adjustment portion and a gain portion. The gain adjustment portion can output a first gain adjustment signal based on the first packet or can output a second gain adjustment signal based on the second packet. The gain portion can output a first signal corresponding to the first packet and can output a second signal corresponding to the second packet. The first signal is based on the input signal and a first gain factor. The second signal is based on the input signal and a second gain factor. The first gain factor is based on the first gain adjustment signal. The second gain factor is based on the second gain adjustment signal. | 03-31-2011 |
| 20100183106 | SYSTEM AND METHOD FOR COMPENSATING FOR NONLINEAR INTERFERENCE CANCELLATION IN MULTI-CARRIER TRANSMISSION - An aspect of the present invention is drawn to a receiver operable to receive a first signal transmitted on a first carrier and to receive a second signal transmitted on a second carrier. The receiver includes a first filter, a second filter and a nonlinear compensator. The first filter is arranged to receive the first signal and to generate a first filtered signal. The second filter is arranged to receive the second signal and to generate a second filtered signal. The nonlinear compensator is arranged to output a first compensating signal based on the first filtered signal and the second filtered signal and to output a second compensating signal based on the first filtered signal and the second filtered signal. Further, the nonlinear compensator can reduce one of nonlinear interference within the first filtered signal and nonlinear interference between the first filtered signal and the second filtered signal. | 07-22-2010 |
| 20100122143 | METHOD AND SYSTEM FOR PROVIDING LOW DENSITY PARITY CHECK (LDPC) CODING FOR SCRAMBLED CODED MULTIPLE ACCESS (SCMA) - A multiple access scheme is described. One or more encoders are configured to encode a plurality of bit streams using Low Density Parity Check (LDPC) coding. The bit streams correspond to a respective plurality of terminals. The plurality of bit streams are converted to provide a multiple access scheme for the terminals. | 05-13-2010 |
| 20100121957 | PERFORMANCE ENHANCING PROXY HANDOVER - An approach is provided for graceful shutdown and startup of spoofing when a handover procedure is performed. A handover of a performance enhancing proxy (PEP) session associated with a transport connection is detected. A shutdown procedure is initiated to stop spoofing of the transport connection in response to the detected handover. The shutdown procedure avoids teardown of the transport connection during the handover from a first link to a second link of a communication system. | 05-13-2010 |
| 20090285150 | METHOD AND SYSTEM FOR PROVIDING A SATELLITE INTERFACE TO SUPPORT MOBILE COMMUNICATION SERVICES - An approach provides a satellite air interface to efficiently support communication with a terrestrial network. One or more packets associated with a data communication session are received from a terrestrial network configured to provide cellular communications. A frame representing the packet for transmission is generated over a satellite link to a user terminal. Signaling information for the transmission of the packet over the terrestrial network is modified or eliminated for transmission over the satellite link. | 11-19-2009 |
| 20090028324 | METHOD AND SYSTEM FOR PROVIDING SCRAMBLED CODED MULTIPLE ACCESS (SCMA) - A multiple access scheme is described. A first bit stream is scrambled from a first terminal according to a first scrambling signature. A second bit stream is scrambled from a second terminal according to a second scrambling signature, wherein the first bit stream and the second bit stream are encoded using a low rate code. The first scrambling signature and the second scrambling signature are assigned, respectively, to the first terminal and the second terminal to provide a multiple access scheme. | 01-29-2009 |
| 20080238730 | METHOD AND APPARATUS FOR GENERATING LOW RATE TURBO CODES - An approach is provided for encoding information bits to output a coded signal using turbo code encoding with a low code rate. | 10-02-2008 |
