Patents Assigned to Gilat Satellite Networks Ltd.
  • Patent number: 11329378
    Abstract: A radiation pattern of a phased array antenna, comprising a plurality of antenna elements, may be dynamically modified using phase shifters to apply variable phase shifts between antenna elements. In a phased array antenna designed for airborne applications, the phase shifters may be required to enable a fine phase-shifting resolution and to operate over a wide temperature range. The phase shifters may also be required to perform while exhibiting small process variations, small form factor, low power consumption, and low loss. One possible solution to this is a passive vector-interpolating phase shifter configured to exhibit such characteristics.
    Type: Grant
    Filed: June 15, 2020
    Date of Patent: May 10, 2022
    Assignee: Gilat Satellite Networks Ltd.
    Inventors: Nir Sharvit, Tom Heller
  • Patent number: 11121766
    Abstract: A wideband transceiver for a gateway is presented. The wideband transceiver may interface with the gateway's processors over an interface that carries data encapsulated in baseband frames. The wideband transceiver may comprise a modulator and a high power amplifier and may improve a transmitted signal quality and may utilize a wideband for wireless communications, for example, for a satellite communication system.
    Type: Grant
    Filed: January 24, 2020
    Date of Patent: September 14, 2021
    Assignee: Gilat Satellite Networks Ltd.
    Inventors: James Jordan Rosenberg, Amir Halperin, Ely Yehiel Reich, Hamutal Slonim
  • Patent number: 10903900
    Abstract: A method for designing Non-Geosynchronous Orbit (NGSO) satellite constellations and NGSO satellite constellations thereof are presented. An NGSO satellite constellation may be designed to allow an earth station to perform handover between two satellites of the NGSO satellite constellation while the two satellites appear to be at about a same location in the sky relative to the earth station. In such constellation, an earth station may perform such handover between the two satellites in a Make-Before-Break fashion while the earth station may be configured to use a single, slow-tracking antenna, such as a mechanically tracking dish antenna.
    Type: Grant
    Filed: May 29, 2019
    Date of Patent: January 26, 2021
    Assignee: Gilat Satellite Networks Ltd.
    Inventors: Rafi Heiman, Ivan Tsonev Ivanov
  • Patent number: 10892817
    Abstract: A collection of methods, which when combined together provide suitable bandwidth resources for real-time content exchange over a satellite-based network, wherein the network employs a reservation-based access scheme, such as but not limited to DVB-RCS. Furthermore, the methods provide suitable bandwidth wherein transmission conditions deteriorate while real-time content is being exchanged and the already allocated resources can no longer be used.
    Type: Grant
    Filed: August 14, 2018
    Date of Patent: January 12, 2021
    Assignee: Gilat Satellite Networks Ltd.
    Inventors: Amir Yabo, Yoseph Hecht, Magal Pinchas
  • Patent number: 10785680
    Abstract: A satellite communication system may be configured to establish multiple different tunnels between a first satellite modem and a second satellite modem in accordance with a protocol. The first satellite modem may receive a packet via a tunnel established in accordance with a different protocol, determine an endpoint identifier corresponding to the tunnel based on information from one or more headers included in the packet, identify one of the multiple different tunnels that corresponds to the tunnel, generate a corresponding packet omitting at least a portion of the information from the one or more headers and comprising at least a portion of data included in a payload of the packet and an information block comprising a tunnel index corresponding to the identified one of the multiple different tunnels, and transmit the corresponding packet to the second satellite modem via the identified one of the multiple different tunnels.
    Type: Grant
    Filed: March 30, 2018
    Date of Patent: September 22, 2020
    Assignees: Gilat Satellite Networks Ltd., Softbank Corporation
    Inventors: Yoseph Hecht, Hagay Katz, Akihiko Tajika
  • Patent number: 10742710
    Abstract: A communication system may be configured to transmit information from one or more information sources to a plurality of users over limited capacity media while enforcing one or more Quality of Service policies, such as maximum information rate (MIR) policies. Methods are presented herein for enforcing maximum information rate on two or more levels in a hierarchal and extendable manner, for at least the purposes of maximizing utilization of available capacity over said media and of fair distributing said capacity between all users. Also presented herein is a method for estimating load over said media.
    Type: Grant
    Filed: August 29, 2018
    Date of Patent: August 11, 2020
    Assignee: Gilat Satellite Networks Ltd.
    Inventor: Tzvika Meiri
  • Patent number: 10727587
    Abstract: A radiation pattern of a phased array antenna, comprising a plurality of antenna elements, may be dynamically modified using phase shifters to apply variable phase shifts between antenna elements. In a phased array antenna designed for airborne applications, the phase shifters may be required to enable a fine phase-shifting resolution and to operate over a wide temperature range. The phase shifters may also be required to perform while exhibiting small process variations, small form factor, low power consumption, and low loss. One possible solution to this is a passive vector-interpolating phase shifter configured to exhibit such characteristics.
    Type: Grant
    Filed: April 23, 2018
    Date of Patent: July 28, 2020
    Assignee: Gilat Satellite Networks Ltd.
    Inventors: Nir Sharvit, Tom Heller
  • Patent number: 10720704
    Abstract: A mobile terminal, operational both to receive and transmit, may comprise a mobile antenna and an antenna controller that may be configured to control the mobile antenna at least for keeping it pointed towards the satellite, e.g. as the mobile terminal and/or the satellite move. Disclosed is a method that may be used by the antenna controller for optimizing the pointing of the mobile antenna, the method may be based on assessing both the reception quality and the transmission quality. This method may be used for overcoming degradation, mainly to transmission quality, that may result from squints between an optimal reception direction and an optimal transmission direction associated with the mobile antenna.
    Type: Grant
    Filed: September 9, 2016
    Date of Patent: July 21, 2020
    Assignee: Gilat Satellite Networks Ltd.
    Inventors: Uzi Ram, Izhar Marinov, Ivan Tsonev Ivanov
  • Patent number: 10715247
    Abstract: A receiver is presented, such that the receiver may be configured to receive transmissions in accordance with a continuous waveform and to relock quickly on a received transmission when the transmitter is switched or a change in the waveform parameters is made. The receiver may be configured to support reception of a shared channel and/or of a channel allocated for SCPC usage and may be modified while used (e.g., dynamic SCPC). In addition, a satellite communication system is presented, the satellite communication system comprising at least one receiver in accordance with the above-described receiver. The satellite communication system may be configured to utilize the receiver's characteristics for at least the purpose of achieving a highly efficient return link channel.
    Type: Grant
    Filed: June 5, 2019
    Date of Patent: July 14, 2020
    Assignee: Gilat Satellite Networks Ltd.
    Inventors: Oren Markovitz, Dubi Lever
  • Patent number: 10491691
    Abstract: A first computing device and a second computing device may both be located behind the same gateway. The first computing device and the second computing device may not be part of a same local area network. Accordingly, the first computing device and the second computing device may not be discoverable to each other via standard layer two discovery protocols. The first computing device may be a tunneled device and the second computing device may be a non-tunneled device. Accordingly, the first computing device and the second computing device may not be discoverable to each other via standard layer three discovery protocols. Described herein are systems and methods for performing IP packet manipulation to facilitate a local discovery session between the first computing device and the second computing device.
    Type: Grant
    Filed: February 23, 2017
    Date of Patent: November 26, 2019
    Assignee: Gilat Satellite Networks Ltd.
    Inventors: Oren Markovitz, Yoseph Hecht
  • Patent number: 10454186
    Abstract: A microwave antenna for two-way communication via a satellite is presented. The antenna may feature lightweight plastic construction that may allow the antenna to be highly dynamic, to feature high tracking capabilities and to require a much simpler drive construction. The presented antenna may provide high reliability at a reasonable cost. Such antenna may be highly suitable for on-the-move communication applications. The antenna may be used for supporting airborne communication systems operative via satellites.
    Type: Grant
    Filed: February 19, 2016
    Date of Patent: October 22, 2019
    Assignee: Gilat Satellite Networks Ltd.
    Inventors: Victor Liudmilov Boyanov, Vesselin Nikolov Peshlov, Mario Ganchev Gachev
  • Patent number: 10091268
    Abstract: A communication system may be configured to transmit information from one or more information sources to a plurality of users over limited capacity media while enforcing one or more Quality of Service policies, such as maximum information rate (MIR) policies. Methods are presented herein for enforcing maximum information rate on two or more levels in a hierarchal and extendable manner, for at least the purposes of maximizing utilization of available capacity over said media and of fair distributing said capacity between all users. Also presented herein is a method for estimating load over said media.
    Type: Grant
    Filed: March 6, 2017
    Date of Patent: October 2, 2018
    Assignee: Gilat Satellite Networks Ltd.
    Inventor: Tzvika Meiri
  • Patent number: 10084530
    Abstract: A collection of methods, which when combined together provide suitable bandwidth resources for real-time content exchange over a satellite-based network, wherein the network employs a reservation-based access scheme, such as but not limited to DVB-RCS. Furthermore, the methods provide suitable bandwidth wherein transmission conditions deteriorate while real-time content is being exchanged and the already allocated resources can no longer be used.
    Type: Grant
    Filed: August 11, 2014
    Date of Patent: September 25, 2018
    Assignee: Gilat Satellite Networks Ltd.
    Inventors: Amir Yabo, Yoseph Hecht, Magal Pinchas
  • Patent number: 10051436
    Abstract: Some applications that cannot operate over a non-reliable delivery service may operate sufficiently well over less than a completely guaranteed delivery service. Such an application may perform relatively well even if some transmitted data is not delivered, as long as the application has information regarding which receiving entities received what part of the data. In a point-to-multipoint system, data may be transmitted from a source node to a plurality of destination nodes using a plurality of multicast datagrams. Methods are presented herein for efficiently enabling the source node to determine for each of the plurality of destination nodes which multicast datagrams were successfully received. Also presented are methods for compressing data transmitted from the source node to the destination nodes, wherein a compression dictionary is transmitted from the source node to the destination node using multicast datagrams.
    Type: Grant
    Filed: February 2, 2016
    Date of Patent: August 14, 2018
    Assignee: Gilat Satellite Networks Ltd.
    Inventors: Tzvika Meiri, Oren Markovitz, Nitay Argov
  • Patent number: 10021594
    Abstract: A satellite communication system may be configured to establish multiple different tunnels between a first satellite modem and a second satellite modem in accordance with a protocol. The first satellite modem may receive a packet via a tunnel established in accordance with a different protocol, determine an endpoint identifier corresponding to the tunnel based on information from one or more headers included in the packet, identify one of the multiple different tunnels that corresponds to the tunnel, generate a corresponding packet omitting at least a portion of the information from the one or more headers and comprising at least a portion of data included in a payload of the packet and an information block comprising a tunnel index corresponding to the identified one of the multiple different tunnels, and transmit the corresponding packet to the second satellite modem via the identified one of the multiple different tunnels.
    Type: Grant
    Filed: June 16, 2015
    Date of Patent: July 10, 2018
    Assignees: Gilat Satellite Networks Ltd., Softbank Corporation
    Inventors: Yoseph Hecht, Hagay Katz, Akihiko Tajika
  • Patent number: 9961587
    Abstract: A satellite communication system may be configured to establish multiple different tunnels between a first satellite modem and a second satellite modem in accordance with a protocol. The first satellite modem may receive a packet via a tunnel established in accordance with a different protocol, determine an endpoint identifier corresponding to the tunnel based on information from one or more headers included in the packet, identify one of the multiple different tunnels that corresponds to the tunnel, generate a corresponding packet omitting at least a portion of the information from the one or more headers and comprising at least a portion of data included in a payload of the packet and an information block comprising a tunnel index corresponding to the identified one of the multiple different tunnels, and transmit the corresponding packet to the second satellite modem via the identified one of the multiple different tunnels.
    Type: Grant
    Filed: December 20, 2016
    Date of Patent: May 1, 2018
    Assignees: Gilat Satellite Networks Ltd., Softbank Corporation
    Inventors: Yoseph Hecht, Hagay Katz, Akihiko Tajika
  • Patent number: 9924239
    Abstract: Consumption habits of video content have been changing for some time, as more people (especially young people) prefer video on demand (VOD) services over linear channels. Disclosed is a communication system configured to efficiently deliver video content on demand over a satellite medium. Also disclosed are methods for efficiently delivering video content on demand using multicast transmissions and caching of video title prefixes.
    Type: Grant
    Filed: June 4, 2015
    Date of Patent: March 20, 2018
    Assignee: Gilat Satellite Networks Ltd.
    Inventor: Oren Markovitz
  • Patent number: 9923820
    Abstract: Providing quality of service (QoS) for applications such as Voice over IP (VoIP) and enforcing service level agreements (SLA) are major requirement in any current and future communication networks. On the other hand, more communication networks are employing adaptive transmission mechanisms, such as DVB-S2 ACM in satellite communication networks. In non-adaptive networks, QoS enforcers use static bit rate configurations. However, using a static bit rate configuration in an adaptive network may result in underflow situations, during which it may not be possible to utilize the full capacity of the transmission channel and expensive resources may therefore be wasted, In addition, using a static bit rate configuration in an adaptive network may result in overflow situations, during which it may be necessary to drop user traffic packets and therefore quality of service may not be maintained. It is therefore imperative that QoS enforcers have knowledge of the network's available bit rate at all times.
    Type: Grant
    Filed: September 16, 2009
    Date of Patent: March 20, 2018
    Assignee: Gilat Satellite Networks Ltd.
    Inventors: Dubi Lever, Isacc Ben Laish
  • Patent number: 9912401
    Abstract: A satellite communications system comprising a Hub station and a plurality of terminals, the system is configured to utilize a FWD link and a RTN link in accordance with adaptation techniques for relevant transmission properties (e.g. modulation, coding, transmission power, etc.) and to use adaptive margins to ensure proper reception of transmitted information under various link conditions. Methods are presented for determining said adaptive margins in real time or substantially in real time, and for setting relevant transmission properties in accordance with the determined margins. Adaptive margins may be determined either directly or following the determining of a link state for each of the FWD link and the RTN link.
    Type: Grant
    Filed: December 21, 2016
    Date of Patent: March 6, 2018
    Assignee: Gilat Satellite Networks Ltd.
    Inventors: Timor Blau, Dubi Lever, Eli Shapira, Moti Goldshtein, Ori Porat
  • Patent number: 9887925
    Abstract: Methods for overcoming latency and throughput degradation ensuing from packet fragmentation performed at a source node are disclosed. Some embodiments of the disclosed methods may be applicable to networks in which performance enhancement methods are used, including but not limited to TCP acceleration methods. In some embodiments, the disclosed methods may include determining an MTU for a session based on one or more fragmentation policies. Also disclosed is a satellite communication system that may be configured to resolve one or more detrimental effects on TCP spoofing resulting from the MTU discovery mechanism of IPv6.
    Type: Grant
    Filed: November 26, 2013
    Date of Patent: February 6, 2018
    Assignee: Gilat Satellite Networks Ltd.
    Inventors: Micheal Shama, Yoseph Hecht, Eldad Yitzhaki