Patents Assigned to Hughes Electronics
  • Patent number: 8610535
    Abstract: A door locking system configured to lock and unlock a door frame of a cabinet is provided. The door locking system includes a handle rod; a digital or mechanical door sensor configured to detect whether the door frame of the cabinet is open or closed; and a latch configured to lock the handle rod, the latch being connected to and controlled by a lock mechanism. The lock mechanism includes a mechanical module and an electromechanical module. The mechanical module is configured to actuate the latch to lock and unlock the handle rod, and configured to grant the electromechanical module control over the latch to lock and unlock the handle rod.
    Type: Grant
    Filed: April 14, 2011
    Date of Patent: December 17, 2013
    Assignee: Austin Hughes Electronics Limited
    Inventor: Kin Fai Hui
  • Patent number: 7596802
    Abstract: A communication system having a proxy architecture is disclosed. The system includes a platform that provides performance enhancing functions. The platform includes a spoofing apparatus that routes the information within the communication system. The spoofing apparatus receives spoofing selection and spoofing parameters from the platform and maintains the current parameters in one or more spoofing profiles. The spoofing apparatus routes packets of information throughout the communication system based on the spoofing selection and/or spoofing profile. The spoofing apparatus may also compensate for maximum segment size mismatches during the routing of information. This compensation may include dynamically resizing data segments or disabling three-way handshake spoofing. The above arrangement has particular applicability to a bandwidth constrained communication system, such as a satellite network.
    Type: Grant
    Filed: July 13, 2001
    Date of Patent: September 29, 2009
    Assignee: Hughes Electronics Corporation
    Inventors: John Border, Douglas Dillon
  • Patent number: 7353279
    Abstract: An approach is provided for providing quality of service reservations in a packet-based radio communication network is disclosed. Connection information including connection rate is extracted from a dataflow from an application requesting connection-oriented service. A request message is sent to a proxy for establishing a connection based on the connection information over the network, wherein the proxy configures a classification rule based on flow criteria from the request message and accordingly initiates establishment of the connection over the network to a destination terminal. A confirmation that the connection can be established is selectively received according to the connection information, wherein the dataflow satisfying the flow criteria from the application is transported over the established connection to the destination terminal. This approach as particular applicability to shared capacity systems, such as a satellite communication system.
    Type: Grant
    Filed: January 8, 2004
    Date of Patent: April 1, 2008
    Assignee: Hughes Electronics Corporation
    Inventors: Naresh Durvasula, Vikrant Binjrajka, Patrick Fisher, Rob Torres, Douglas Dillon, Vipul Sharma
  • Patent number: 7336679
    Abstract: An approach for providing access in a communications system is disclosed. A network node (or terminal) generates duplicate bursts. The network node then transmits the duplicate bursts over a contention channel according to a pre-determined quality-of-service (QoS) designation. The contention channel can be established based on a diversity ALOHA protocol. The present invention has particular applicability to a radio communications system, such as a satellite network that provides data communication services.
    Type: Grant
    Filed: May 2, 2002
    Date of Patent: February 26, 2008
    Assignee: Hughes Electronic Corporation
    Inventor: Douglas Dillon
  • Patent number: 7325063
    Abstract: An apparatus including a protocol stack, the protocol stack including an application layer, a network layer, and a physical layer, wherein the physical layer comprises a hardware interface between the apparatus and a network, wherein network-level tunnelling of a packet from the network layer, the tunnelling creating a packet having a plurality of network layer source addresses and a plurality of network layer destination addresses, takes place in the apparatus below the network layer but above the physical layer, wherein a driver operating in the apparatus below the network layer but above the physical layer effects the network-level tunnelling, and wherein the driver is configured to generate a reply to an ARP packet received from the network layer of the apparatus.
    Type: Grant
    Filed: October 22, 2003
    Date of Patent: January 29, 2008
    Assignee: Hughes Electronics Corporation
    Inventor: Douglas M. Dillon
  • Publication number: 20080022305
    Abstract: A method and apparatus for computing a schedule of channels is disclosed. The method comprises the steps of accepting a series of commands to tune a plurality of channels sequentially from an ordered schedule of channels; determining a duration of a time period between each of the series of commands; and prioritizing the schedule of channels according to the duration of the time period during which each channel is tuned. The apparatus comprises a user interface for accepting a series of commands to tune a plurality of channels sequentially from an ordered schedule of channels and a processor, communicatively coupled to a memory, the processor implementing a timer for determining a duration of a time period during which each channel is tuned and prioritizing the schedule of channels according to the duration of the time period during which each channel is tuned.
    Type: Application
    Filed: October 4, 2007
    Publication date: January 24, 2008
    Applicant: HUGHES ELECTRONICS CORPORATION
    Inventor: Brian Thompson
  • Patent number: 7207728
    Abstract: Optical bond-wire interconnections between microelectronic chips, wherein optical wires are bonded onto microelectronic chips. Such optical connections offer numerous advantages compared to traditional electrical connections. Among other things, these interconnections are insensitive to electromagnetic interference and need not be located at the edges of a chip but rather can be placed for optimal utility to the circuit function. In addition, such interconnections can be given the same or other pre-specified lengths regardless of the placement in the module and they are capable of signal bandwidths up to 20 Gigahertz without causing a cross-talk problem. A method of fabrication of such optical interconnections using optical fiber, a laser or photodetector and etched mirror and etched V-shaped grooves.
    Type: Grant
    Filed: August 26, 2003
    Date of Patent: April 24, 2007
    Assignees: HRL Laboratories, LLC, Hughes Electronic Corporation
    Inventors: Daniel Yap, Michael Yung
  • Patent number: 7031653
    Abstract: A method and apparatus for switching signals through a switch matrix are disclosed. The apparatus comprises an input module and an output module. The input module has a plurality of inputs typically equal to a number of cells in a reuse pattern, and the inputs receiving at least one uplink beam. The input module also has a plurality of outputs, the plurality of outputs is typically equal to the number of subbands in the uplink beam. The output module is coupled to the input module and selectively couples the outputs from the input module to an output of the output module. The method comprises the steps of grouping the uplink signals into a plurality of groups, the number of groups typically equal to a number of cells in the cell-based transmission matrix, where each group comprises a signal from each frequency used in the frequency reuse pattern. Each group of uplink signals is then separated into subband signals, which are then grouped together into groups of similar subband signals.
    Type: Grant
    Filed: March 29, 2000
    Date of Patent: April 18, 2006
    Assignee: Hughes Electronics Corporation
    Inventors: Peter John Turley, Shih-Chang Wu
  • Patent number: 7020829
    Abstract: An approach is provided for transmitting messages using low density parity check (LDPC) codes. Input messages are encoded according to a structured parity check matrix that imposes restrictions on a sub-matrix of the parity check matrix to generate LDPC codes. The LDPC codes are transmitted over a radio communication system (e.g., satellite network), wherein a receiver communicating over the radio communication system is configured to iteratively decode the received LDPC codes according to a signal constellation associated with the LDPC codes. The receiver is configured to iteratively regenerating signal constellation bit metrics after one or more decoding iterations.
    Type: Grant
    Filed: June 4, 2003
    Date of Patent: March 28, 2006
    Assignee: Hughes Electronics Corporation
    Inventors: Mustafa Eroz, Feng-Wen Sun, Lin-Nan Lee
  • Patent number: 7013269
    Abstract: A system and method is provided that employs a frequency domain interpolative CODEC system for low bit rate coding of speech which comprises a linear prediction (LP) front end adapted to process an input signal providing LP parameters which are quantized and encoded over predetermined intervals and used to compute a LP residual signal. An open loop pitch estimator adapted to process the LP residual signal, a pitch quantizer, and a pitch interpolator also provides a pitch contour within the predetermined intervals.
    Type: Grant
    Filed: February 13, 2002
    Date of Patent: March 14, 2006
    Assignee: Hughes Electronics Corporation
    Inventors: Udaya Bhaskar, Kumar Swaminathan
  • Patent number: 7012937
    Abstract: A method and system for tracking a time division multiplexed synchronization signal in a satellite communication system is provided. The signal is provided as a series of frames with beacon signals time division multiplexed into at least one time slot of each frame. The beacon signal in each frame comprises a unique word sequence, which is the same in each frame, and a portion of a PN sequence. The entire PN sequence is distributed into a plurality of frames forming a superframe. Frequency variations of the incoming signal are tracked at the satellite terminal by correlating the PN sequence of the incoming signal against early and late locally generated versions of the PN sequence in a discriminate circuit. The output of the discriminate is provided to a delay locked loop circuit of at least third order. The output of the loop is used to adjust the frequency of the VCO, which clocks the A/D converter operating on the incoming signal.
    Type: Grant
    Filed: January 24, 2001
    Date of Patent: March 14, 2006
    Assignee: Hughes Electronics Corporation
    Inventors: Bassel Beidas, Olga Ritterbush, Stanley Kay, Yezdi Antia, Bala Subramaniam
  • Patent number: 6996523
    Abstract: A system and method is provided that employs a frequency domain interpolative CODEC system for low bit rate coding of speech which comprises a linear prediction (LP) front end adapted to process an input signal that provides LP parameters which are quantized and encoded over predetermined intervals and used to compute a LP residual signal. An open loop pitch estimator adapted to process the LP residual signal, a pitch quantizer, and a pitch interpolator and provide a pitch contour within the predetermined intervals is also provided.
    Type: Grant
    Filed: February 13, 2002
    Date of Patent: February 7, 2006
    Assignee: Hughes Electronics Corporation
    Inventors: Udaya Bhaskar, Kumar Swaminathan
  • Patent number: 6996372
    Abstract: A method is presented describing how information and data is exchanged between a user's access terminal's mobility management and radio resource software layer in a satellite based telecommunications system, wherein the telecommunication system comprises one or more satellites, new and existing gateways, and a user's access terminal, which comprises a mobility management and radio resource software layer, the method pertaining to data and information flow between them, in response to various stimuli and conditions as the user enters into and out of various modes of operations, including deactivation, activation and illumination of a dark beam of a spot beam that is a shared resource.
    Type: Grant
    Filed: June 28, 2002
    Date of Patent: February 7, 2006
    Assignee: Hughes Electronics Corporation
    Inventors: Anthony Noerpel, Wei Zhao, Fei Yang, Kennon Cogdell
  • Patent number: 6993009
    Abstract: A communication apparatus that shares precise return channel uplink timing information includes a common symbol timing reference and one or more control stations that each transmit independent asynchronous DVB data streams which evenly share the common symbol timing. The control stations each include respective delay trackers to determine broadcast transmission delays associated with the particular control station and transmission path. Each broadcast data stream includes the same non real-time frame marker and a transmission delay message particular to the respective control station. A remote receiver receives one of the broadcast streams and timestamps the non real-time frame marker with a local time of receipt. A timing recovery circuit determines an upcoming return channel frame start time by adjusting the local time of receipt by the particular broadcast transmission delay and a unique receiver offset time.
    Type: Grant
    Filed: December 8, 2000
    Date of Patent: January 31, 2006
    Assignee: Hughes Electronics Corporation
    Inventors: Frank Kelly, David Kloper, Kasra Akhavan-Toyserkani
  • Patent number: 6987741
    Abstract: A system for managing return channel bandwidth in a two-way satellite communication network is disclosed. A plurality of transceivers transmit backlog information over a return channel via a satellite, wherein the backlog information specify an amount of queued traffic for the respective transceivers. A hub receives the backlog information and allocates a minimal amount of return channel bandwidth to each of the transceivers. The hub selectively sets a bandwidth level associated with the return channel bandwidth that is available based upon one of a plurality of predetermined bandwidth levels according to a predetermined criteria. The hub selectively allocates additional return channel bandwidth based upon the bandwidth level to the transceivers that require additional return channel bandwidth in excess of the allocated minimal amounts.
    Type: Grant
    Filed: February 20, 2001
    Date of Patent: January 17, 2006
    Assignee: Hughes Electronics Corporation
    Inventors: Frank Kelly, David Kloper
  • Patent number: 6985455
    Abstract: An approach for allocating bandwidth in a satellite communication system is disclosed. The system includes a set of global queues that store bandwidth requests, which are received from a number of satellite terminals. The received bandwidth request include a high priority rate request, a low priority rate request, a high priority volume request, and a low priority volume request. A bandwidth control processor determines bandwidth request type and priority of the received bandwidth requests and places the bandwidth requests in the appropriate global queues based upon the determined bandwidth request type and priority. Each of the global queues corresponds to a data rate associated with of each a plurality of channels. The system also utilizes a set of local queues that correspond to the channels. The BCP moves the bandwidth requests from the global queues to the local queues. The BCP then allocates the transmission slots in response to the bandwidth requests stored in the local queues.
    Type: Grant
    Filed: August 2, 2000
    Date of Patent: January 10, 2006
    Assignee: Hughes Electronics Corporation
    Inventors: Robert Jeff Heath, Robert J. Torres, Sreenivas Ramaswamy, Stephanie Demers
  • Patent number: 6985523
    Abstract: An apparatus for providing automatic gain control for use in a satellite terminal of a satellite communication system capable of transmitting a plurality of different modes of data. The apparatus includes a demodulator circuit having an analog to digital converter; a first variable attenuator having an attenuation value set on the basis of a measured power level of a predetermined data signal; and a second variable attenuator having an attenuation value set on the basis of the mode of data being received by the satellite terminal, where each of the data modes have a corresponding predetermined attenuation value associated therewith which is utilized as the attenuation value of the second variable attenuator when the satellite terminal receives the data mode.
    Type: Grant
    Filed: January 10, 2002
    Date of Patent: January 10, 2006
    Assignee: Hughes Electronics Corp.
    Inventors: Richard Sims, Richard Clewer, Neal Becker, Yezdi Antia, J. Mark Steber
  • Patent number: 6975687
    Abstract: A vector modulator including an offset QPSK modulator operative for receiving input data and generating a first output signal representing the modulation to be imposed on a carrier signal to effect offset QPSK modulation of the input signal and a second output signal representing an amplitude of the input data; and a frequency modulator including a sigma-delta modulator, operative for receiving the first output signal generated by the offset QPSK modulator, and generating a control signal representing the desired frequency of the carrier signal such that the carrier signal represents the input signal offset QPSK modulated.
    Type: Grant
    Filed: June 18, 2001
    Date of Patent: December 13, 2005
    Assignee: Hughes Electronics Corporation
    Inventors: Thomas Jackson, George Eapen, Fa Dai
  • Patent number: 6973497
    Abstract: A method and apparatus for enhancing the performance of a network by performing selective spoofing. Selective spoofing provides the ability to discriminate among different connections and only allocate spoofing resources to those connections for which spoofing will actually improve performance. The selective spoofing functions described are applicable to a wide variety of communication links, including both slow and fast links, high latency links, and links with low and high error rates. The selective spoofing functions may be implemented either alone or in combination with other performance enhancing features, such as, spoofing the conventional TCP three-way handshake, local data acknowledgement, multiplexing multiple connections across a single connection, data compression/encryption, prioritization, and path selection. The selective spoofing features described are particularly useful for links with high latency and/or high bit error rates.
    Type: Grant
    Filed: September 18, 2000
    Date of Patent: December 6, 2005
    Assignee: Hughes Electronics Corporation
    Inventors: John Border, Matthew Butehorn
  • Patent number: 6965581
    Abstract: An apparatus for transmitting and receiving signals over a two-way satellite communication system is disclosed. A receiving unit receives data from a user terminal. A transmitting unit is coupled to the receiving unit and transmits the data to an antenna. The data is transmitted over a return channel that is established over the satellite to a hub; the hub has connectivity to a packet switched network.
    Type: Grant
    Filed: February 22, 2001
    Date of Patent: November 15, 2005
    Assignee: Hughes Electronics Corp.
    Inventors: Khai Nguyen, Cliff Harris, Douglas Dillon, Frank Kelly, Paul Gaske