Patents by Inventor Walter Robert Kepley
Walter Robert Kepley has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 10938423Abstract: A system comprises a modem, configured to transmit data modulated based on an intermediate frequency within one of a C, X, or Ku band, and a single-stage block-up converter having an input electrically coupled via one inter-facility link cable to the modem, and an output electrically coupled to a high-power amplifier. The single-stage block-up-converter is configured to up-convert the intermediate frequency to a satellite communication frequency within the Ka, Q, or V band.Type: GrantFiled: June 19, 2019Date of Patent: March 2, 2021Assignee: Hughes Network Systems, LLCInventors: Kumudchandra Patel, Walter Robert Kepley, Michael J. Scott
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Publication number: 20190393905Abstract: A system comprises a modem, configured to transmit data modulated based on an intermediate frequency within one of a C, X, or Ku band, and a single-stage block-up converter having an input electrically coupled via one inter-facility link cable to the modem, and an output electrically coupled to a high-power amplifier. The single-stage block-up-converter is configured to up-convert the intermediate frequency to a satellite communication frequency within the Ka, Q, or V band.Type: ApplicationFiled: June 19, 2019Publication date: December 26, 2019Inventors: Kumudchandra Patel, Walter Robert Kepley, Michael J. Scott
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Patent number: 10205512Abstract: Methods and apparatuses for enhancing flatness of frequency response of couplings of radio frequency (RF) ports in an RF switch matrix. Techniques include determining a second RF port has been selected to be coupled to a first RF port via a coupling, obtaining an indication of a frequency or frequencies to be carried via the coupling, determining an amount of attenuation or amplification for the coupling for the frequency or frequencies, and adjusting attenuation or amplification applied to the coupling according to the determined amount attenuation or amplification.Type: GrantFiled: November 27, 2017Date of Patent: February 12, 2019Assignee: Hughes Network Systems, LLCInventors: Kumudchandra Shantilal Patel, Daniel Raymond Wendling, Minheng Shan, Walter Robert Kepley, III
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Publication number: 20180083695Abstract: Methods and apparatuses for enhancing flatness of frequency response of couplings of radio frequency (RF) ports in an RF switch matrix. Techniques include determining a second RF port has been selected to be coupled to a first RF port via a coupling, obtaining an indication of a frequency or frequencies to be carried via the coupling, determining an amount of attenuation or amplification for the coupling for the frequency or frequencies, and adjusting attenuation or amplification applied to the coupling according to the determined amount attenuation or amplification.Type: ApplicationFiled: November 27, 2017Publication date: March 22, 2018Applicant: Hughes Network Systems, LLCInventors: Kumudchandra Shantilal Patel, Daniel Raymond Wendling, Minheng Shan, Walter Robert Kepley, III
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Patent number: 9871578Abstract: An uplink power control system and a machine-implemented method for determining clear sky and adjusting uplink power are provided. A receiving station, which may be a satellite terminal or a satellite gateway, receives a reference signal from a satellite. The reference signal may be sampled over a sampling time period in order to compute a filtered short-term average downlink SINR. A filtered long-term average downlink SINR may be adjusted toward the filtered short-term average downlink SINR using either a first time constant or second time constant, based on a relationship between the filtered long-term average downlink SINR and the filtered short-term average downlink SINR. In some implementations, the second time constant is less than the first time constant.Type: GrantFiled: July 30, 2014Date of Patent: January 16, 2018Assignee: Hughes Network Systems, LLCInventors: Yezdi Antia, Walter Robert Kepley, III
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Patent number: 9831940Abstract: A method including determining that a first radio frequency (RF) port has been selected to be coupled via an M by N RF switch matrix to a second RF port, wherein the M by N radio frequency (RF) switch matrix includes M first-side RF ports and N second-side RF ports, the first RF port is included in the M first-side RF ports, the second RF port is included in the N second-side RF ports, M is at least 2 and N is at least 2, and each of the first-side RF ports may be selectively coupled to and uncoupled from at least one of two or more of the second-side RF ports, such that RF signals are carried between selectively coupled RF ports; obtaining a first indicator indicating a frequency, frequency range, channel, or band for an RF signal to be carried via the second RF port while coupled to the first RF port; obtaining, in response to the determination that the first RF port has been selected to be coupled to the second RF port, a first adjustment value based on the first indicator, the first RF port, and the seconType: GrantFiled: December 1, 2015Date of Patent: November 28, 2017Assignee: Hughes Network Systems, LLCInventors: Kumudchandra Shantilal Patel, Daniel Raymond Wendling, Minheng Shan, Walter Robert Kepley, III
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Publication number: 20170155444Abstract: A method including determining that a first radio frequency (RF) port has been selected to be coupled via an M by N RF switch matrix to a second RF port, wherein the M by N radio frequency (RF) switch matrix includes M first-side RF ports and N second-side RF ports, the first RF port is included in the M first-side RF ports, the second RF port is included in the N second-side RF ports, M is at least 2 and N is at least 2, and each of the first-side RF ports may be selectively coupled to and uncoupled from at least one of two or more of the second-side RF ports, such that RF signals are carried between selectively coupled RF ports; obtaining a first indicator indicating a frequency, frequency range, channel, or band for an RF signal to be carried via the second RF port while coupled to the first RF port; obtaining, in response to the determination that the first RF port has been selected to be coupled to the second RF port, a first adjustment value based on the first indicator, the first RF port, and the seconType: ApplicationFiled: December 1, 2015Publication date: June 1, 2017Applicant: Hughes Network Systems, LLCInventors: Kumudchandra Shantilal Patel, Daniel Raymond Wendling, Minheng Shan, Walter Robert Kepley, III
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Patent number: 9591595Abstract: A method and a satellite gateway for minimizing an impact of a noise floor variation in a spot beam satellite system. A demodulator processes digitized signals from multiple channels. Digitized signals are automatically gain controlled by respective automatic gain control components associated with respective channels. Automatic gain controlled digitized signals are downconverted and provided to a burst processor. The burst processor processes each downconverted signal and provides, with respect to each downconverted signal, an automatic gain control estimate, a code rate, and an inroute number to a processor component. The processor component determines an average automatic gain control value for each inroute, provides automatic gain control references to the respective automatic gain control components, and periodically sends noise map information to satellite terminals served by the satellite gateway. In some embodiments, the automatic gain control values are biased according to corresponding code rates.Type: GrantFiled: September 30, 2014Date of Patent: March 7, 2017Assignee: Hughes Network Systems, LLCInventors: J. Mark Steber, Yogesh Sethi, Walter Robert Kepley, III, Dan Hantz, Nimesh Ambeskar, Hanhui Zhang
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Patent number: 9578646Abstract: A method and a satellite terminal are provided. The satellite terminal may range over multiple frequencies and may receive, from a satellite gateway, a signal quality indicator with respect to each of the ranged multiple frequencies. Noise and interference for a corresponding frequency are estimated based on at least one of the received signal quality indicators for the corresponding frequency. Path loss is estimated based on multiple received signal quality indicators, each of which is received in response to the satellite terminal transmitting a signal while not performing the ranging process. A transmit power level of the satellite terminal is adjusted for the corresponding frequency based on the estimated path loss and the estimated noise and interference for the corresponding frequency.Type: GrantFiled: April 8, 2015Date of Patent: February 21, 2017Assignee: Hughes Networks Systems, LLCInventors: Yash Vasavada, Yezdi Antia, David Alan Roos, Ying Liu, Walter Robert Kepley, III
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Publication number: 20160302207Abstract: A method and a satellite terminal are provided. The satellite terminal may range over multiple frequencies and may receive, from a satellite gateway, a signal quality indicator with respect to each of the ranged multiple frequencies. Noise and interference for a corresponding frequency are estimated based on at least one of the received signal quality indicators for the corresponding frequency. Path loss is estimated based on multiple received signal quality indicators, each of which is received in response to the satellite terminal transmitting a signal while not performing the ranging process. A transmit power level of the satellite terminal is adjusted for the corresponding frequency based on the estimated path loss and the estimated noise and interference for the corresponding frequency.Type: ApplicationFiled: April 8, 2015Publication date: October 13, 2016Applicant: Hughes Network Systems, LLCInventors: Yash Vasavada, Yezdi Antia, David Alan Roos, Ying Liu, Walter Robert Kepley, III
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Publication number: 20160095073Abstract: A method and a satellite gateway for minimizing an impact of a noise floor variation in a spot beam satellite system. A demodulator processes digitized signals from multiple channels. Digitized signals are automatically gain controlled by respective automatic gain control components associated with respective channels. Automatic gain controlled digitized signals are downconverted and provided to a burst processor. The burst processor processes each downconverted signal and provides, with respect to each downconverted signal, an automatic gain control estimate, a code rate, and an inroute number to a processor component. The processor component determines an average automatic gain control value for each inroute, provides automatic gain control references to the respective automatic gain control components, and periodically sends noise map information to satellite terminals served by the satellite gateway. In some embodiments, the automatic gain control values are biased according to corresponding code rates.Type: ApplicationFiled: September 30, 2014Publication date: March 31, 2016Applicant: Hughes Network Systems, LLCInventors: J. Mark Steber, Yogesh Sethi, Walter Robert Kepley, III, Dan Hantz, Nimesh Ambeskar, Hanhui Zhang
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Publication number: 20160037456Abstract: An uplink power control system and a machine-implemented method for determining clear sky and adjusting uplink power are provided. A receiving station, which may be a satellite terminal or a satellite gateway, receives a reference signal from a satellite. The reference signal may be sampled over a sampling time period in order to compute a filtered short-term average downlink SINR. A filtered long-term average downlink SINR may be adjusted toward the filtered short-term average downlink SINR using either a first time constant or second time constant, based on a relationship between the filtered long-term average downlink SINR and the filtered short-term average downlink SINR. In some implementations, the second time constant is less than the first time constant.Type: ApplicationFiled: July 30, 2014Publication date: February 4, 2016Applicant: Hughes Network Systems, LLCInventors: Yezdi Antia, Walter Robert Kepley, III
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Patent number: 6393281Abstract: Seamless hand-off of air-to-ground telephony calls is achieved autonomously within an aircraft by using one of at least two radio links to search for additional ground stations. The search for candidate ground stations for hand-off is expedited by eliminating ground stations exhibiting zero or negative Doppler effects. Other values indicating quality of the link corresponding to the channel over which the search is conducted is compared with the quality of the call and an alternate call is established using the call identification code previously established for the call in progress. The hand-off of the call may then be easily conducted by transferring the voice signal to the channel over which the search was conducted. This is preferably done at a time when the transmission quality of the two channels would be approximately the same or the quality improved on the channel to which hand-off is made.Type: GrantFiled: May 26, 1995Date of Patent: May 21, 2002Assignee: AT&T Wireless Services IncInventors: Gregory J. Capone, Richard M. Gardner, Matthew Mehdi Mohebbi, Walter Robert Kepley, III, John Dennis Kenyon, David Alan Roos