Patents by Inventor Moorthy Hariharan
Moorthy Hariharan 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: 8477802Abstract: A slotted Aloha communication system is provided according to one embodiment of the invention. The system may include a hub and a plurality of RCSTs. According to one embodiment, congestion control may occur at the RCST based in part on the number of segments received at the hub, the number of retransmission segments received at the hub and the number of successful collision retransmission segments received at the hub. The hub may communicate information regarding received segments. Congestion control may include calculating a transmission probably, performing a skewed probability measure with a probability equal to the transmission probability. If the results of the probability measure is positive the RCST may transmit or retransmit a segment within a first time prior, if the probability measure is negative then the RCST waits a set time period and reperforms the skewed probability measure.Type: GrantFiled: July 6, 2010Date of Patent: July 2, 2013Assignee: ViaSat, Inc.Inventors: Tom Inukai, Karim Zamani, Moorthy Hariharan
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Patent number: 8159964Abstract: Satellite communications systems, methods, and related devices are described. A satellite communications system may include routing and switching functionality onboard the satellite. Such a system may include a satellite in communication with terminals (e.g., subscriber terminals or gateways) either directly, or via one or more other satellites through an inter-satellite link. The satellite may be configured with different beams which each provide service to a coverage area. A ground-based network control center (NCC) may dynamically allocate bandwidth and process data measured on the satellite. A novel partition of functionality between the satellite and the NCC is described. Routing paths on the satellite, and the distribution of routing tables within the system, are described as well.Type: GrantFiled: March 7, 2008Date of Patent: April 17, 2012Assignee: ViaSat, Inc.Inventors: Anil Agarwal, Moorthy Hariharan
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Patent number: 8159992Abstract: Satellite communications systems, methods, and related devices are described. A satellite communications system may include routing and switching functionality onboard the satellite. Such a system may include a satellite in communication with terminals (e.g., subscriber terminals or gateways) either directly, or via one or more other satellites through an inter-satellite link. The satellite may be configured with different beams which each provide service to a coverage area. A ground-based network control center (NCC) may dynamically allocate bandwidth and process data measured on the satellite. A novel partition of functionality between the satellite and the NCC is described. Routing paths on the satellite, and the distribution of routing tables within the system, are described as well.Type: GrantFiled: March 7, 2008Date of Patent: April 17, 2012Assignee: ViaSat, Inc.Inventors: Anil Agarwal, Moorthy Hariharan
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Publication number: 20110164499Abstract: A slotted Aloha communication system is provided according to one embodiment of the invention. The system may include a hub and a plurality of RCSTs. According to one embodiment, congestion control may occur at the RCST based in part on the number of segments received at the hub, the number of retransmission segments received at the hub and the number of successful collision retransmission segments received at the hub. The hub may communicate information regarding received segments. Congestion control may include calculating a transmission probably, performing a skewed probability measure with a probability equal to the transmission probability. If the results of the probability measure is positive the RCST may transmit or retransmit a segment within a first time prior, if the probability measure is negative then the RCST waits a set time period and reperforms the skewed probability measure.Type: ApplicationFiled: July 6, 2010Publication date: July 7, 2011Applicant: ViaSat, Inc.Inventors: Tom Inukai, Karim Zamani, Moorthy Hariharan
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Patent number: 7773576Abstract: A slotted Aloha communication system is provided according to one embodiment of the invention. The system may include a hub and a plurality of RCSTs. According to one embodiment, congestion control may occur at the RCST based in part on the number of segments received at the hub, the number of retransmission segments received at the hub and the number of successful collision retransmission segments received at the hub. The hub may communicate information regarding received segments. Congestion control may include calculating a transmission probably, performing a skewed probability measure with a probability equal to the transmission probability. If the results of the probability measure is positive the RCST may transmit or retransmit a segment within a first time prior, if the probability measure is negative then the RCST waits a set time period and reperforms the skewed probability measure.Type: GrantFiled: February 26, 2008Date of Patent: August 10, 2010Assignee: ViaSat, Inc.Inventors: Tom Inukai, Karim Zamani, Moorthy Hariharan
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Publication number: 20080219206Abstract: Satellite communications systems, methods, and related devices are described. A satellite communications system may include routing and switching functionality onboard the satellite. Such a system may include a satellite in communication with terminals (e.g., subscriber terminals or gateways) either directly, or via one or more other satellites through an inter-satellite link. The satellite may be configured with different beams which each provide service to a coverage area. A ground-based network control center (NCC) may dynamically allocate bandwidth and process data measured on the satellite. A novel partition of functionality between the satellite and the NCC is described. Routing paths on the satellite, and the distribution of routing tables within the system, are described as well.Type: ApplicationFiled: March 7, 2008Publication date: September 11, 2008Applicant: ViaSat, Inc.Inventors: Anil Agarwal, Moorthy Hariharan
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Publication number: 20080219266Abstract: Satellite communications systems, methods, and related devices are described. A satellite communications system may include routing and switching functionality onboard the satellite. Such a system may include a satellite in communication with terminals (e.g., subscriber terminals or gateways) either directly, or via one or more other satellites through an inter-satellite link. The satellite may be configured with different beams which each provide service to a coverage area. A ground-based network control center (NCC) may dynamically allocate bandwidth and process data measured on the satellite. A novel partition of functionality between the satellite and the NCC is described. Routing paths on the satellite, and the distribution of routing tables within the system, are described as well.Type: ApplicationFiled: March 7, 2008Publication date: September 11, 2008Applicant: ViaSat, Inc.Inventors: Anil Agarwal, Moorthy Hariharan
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Publication number: 20080220771Abstract: Satellite communications systems, methods, and related devices are described. A satellite communications system may include routing and switching functionality onboard the satellite. Such a system may include a satellite in communication with terminals (e.g., subscriber terminals or gateways) either directly, or via one or more other satellites through an inter-satellite link. The satellite may be configured with different beams which each provide service to a coverage area. A ground-based network control center (NCC) may dynamically allocate bandwidth and process data measured on the satellite. A novel partition of functionality between the satellite and the NCC is described. Routing paths on the satellite, and the distribution of routing tables within the system, are described as well.Type: ApplicationFiled: March 7, 2008Publication date: September 11, 2008Applicant: ViaSat, Inc.Inventors: Anil Agarwal, Moorthy Hariharan
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Publication number: 20080205276Abstract: A slotted Aloha communication system is provided according to one embodiment of the invention. The system may include a hub and a plurality of RCSTs. According to one embodiment, congestion control may occur at the RCST based in part on the number of segments received at the hub, the number of retransmission segments received at the hub and the number of successful collision retransmission segments received at the hub. The hub may communicate information regarding received segments. Congestion control may include calculating a transmission probably, performing a skewed probability measure with a probability equal to the transmission probability. If the results of the probability measure is positive the RCST may transmit or retransmit a segment within a first time prior, if the probability measure is negative then the RCST waits a set time period and reperforms the skewed probability measure.Type: ApplicationFiled: February 26, 2008Publication date: August 28, 2008Applicant: ViaSat, Inc.Inventors: Tom Inukai, Karim Zamani, Moorthy Hariharan