Patents by Inventor Dubi Lever
Dubi Lever 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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Publication number: 20230336300Abstract: In satellite communication systems, the cost of a terminal often corresponds to a maximum data rate that the terminal is required to transmit towards a satellite. The higher the data rate, the higher the Effective Isotropic Radiated Power (EIRP) the terminal may be required to radiate. The EIRP of the terminal is directly proportionate to the transmission power and to the effective area of the antenna. Using coherent transmission combining may facilitate a similar EIRP while reducing the cost of the terminal through using smaller antennas and lower radiated power. Methods, apparatuses, systems, and computer readable media are described herein for facilitating coherent combining of transmissions.Type: ApplicationFiled: April 17, 2023Publication date: October 19, 2023Applicant: Gilat Satellite Networks Ltd.Inventors: Uzi Ram, Guy Levitas, Dubi Lever, Assaf Levin
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Publication number: 20230010606Abstract: A method for satellite communication over non-geosynchronous orbit (NGSO) satellites, using a terminal having a non-tracking antenna, is presented. The terminal may communicate with an NGSO satellite each time the NGSO satellite passes through the terminal's antenna beam (communication opportunity). Though the communication opportunities are short and may reoccur at relatively long intervals (e.g., minutes to tens of minutes), these communication opportunities may be sufficient for transmitting the volumes of information generated by Internet of Things (IoT) applications during the intervals between communication opportunities.Type: ApplicationFiled: June 30, 2022Publication date: January 12, 2023Inventor: Dubi Lever
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Patent number: 10715247Abstract: 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: GrantFiled: June 5, 2019Date of Patent: July 14, 2020Assignee: Gilat Satellite Networks Ltd.Inventors: Oren Markovitz, Dubi Lever
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Publication number: 20190379448Abstract: 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: ApplicationFiled: June 5, 2019Publication date: December 12, 2019Inventors: Oren Markovitz, Dubi Lever
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Patent number: 9923820Abstract: 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: GrantFiled: September 16, 2009Date of Patent: March 20, 2018Assignee: Gilat Satellite Networks Ltd.Inventors: Dubi Lever, Isacc Ben Laish
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Patent number: 9912401Abstract: 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: GrantFiled: December 21, 2016Date of Patent: March 6, 2018Assignee: Gilat Satellite Networks Ltd.Inventors: Timor Blau, Dubi Lever, Eli Shapira, Moti Goldshtein, Ori Porat
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Publication number: 20170302365Abstract: 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: ApplicationFiled: December 21, 2016Publication date: October 19, 2017Inventors: Timor Blau, Dubi Lever, Eli Shapira, Moti Goldshtein, Ori Porat
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Patent number: 9559767Abstract: 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: GrantFiled: October 31, 2012Date of Patent: January 31, 2017Assignee: Gilat Satellite Networks Ltd.Inventors: Timor Blau, Dubi Lever, Eli Shapira, Moti Goldshtein, Ori Porat
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Patent number: 9432109Abstract: A satellite communication terminal may comprise an outdoor part and an indoor part. Either the indoor part or the outdoor part may comprise a modem configured for communicating with a hub of a satellite communication system via a satellite and the outdoor part of the terminal. Methods are presented for sending indications from the outdoor part of the terminal to the modem, for example, to provide a person that may be installing the terminal with some control over the flow of the installation process while remaining outside (e.g., in the vicinity of the outdoor part of the terminal). In some embodiments, such indications may be used for triggering cross-polarization measurements and/or providing more elaborate information to the person installing the terminal without the need to leave the outdoor part of the terminal.Type: GrantFiled: August 28, 2014Date of Patent: August 30, 2016Assignee: Gilat Satellite Networks Ltd.Inventor: Dubi Lever
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Publication number: 20150063428Abstract: A satellite communication terminal may comprise an outdoor part and an indoor part. Either the indoor part or the outdoor part may comprise a modem configured for communicating with a hub of a satellite communication system via a satellite and the outdoor part of the terminal. Methods are presented for sending indications from the outdoor part of the terminal to the modem, for example, to provide a person that may be installing the terminal with some control over the flow of the installation process while remaining outside (e.g., in the vicinity of the outdoor part of the terminal). In some embodiments, such indications may be used for triggering cross-polarization measurements and/or providing more elaborate information to the person installing the terminal without the need to leave the outdoor part of the terminal.Type: ApplicationFiled: August 28, 2014Publication date: March 5, 2015Inventor: Dubi Lever
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Patent number: 8897307Abstract: A system and method for packing data over User Packets and packing the User Packets over DVB-S2 Frames, using the DVB-S2-ACM satellite transmission standard.Type: GrantFiled: March 11, 2011Date of Patent: November 25, 2014Assignee: Gilat Satellite Networks Ltd.Inventors: Uzi Ram, Dor Snapir, Dubi Lever
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Patent number: 8885503Abstract: In a satellite communication system, comprising a hub and a plurality of heterogeneous terminals, the hub may split a bandwidth segment designated for a forward channel into at least two carriers, wherein some of the terminals may listen on a first carrier and some other terminals may listen on the at least second carrier. In this system, the hub may re-arrange the split of the bandwidth segment between the various carriers populating it in real-time or substantially in real-time, while the carriers are actively transmitted, and without causing loss of service and/or loss of data to terminals listening on those carriers. The terminals may be configured to track the carriers as they are re-arranged and to maintain seamless service to the end user throughout the re-arrangement process.Type: GrantFiled: November 7, 2011Date of Patent: November 11, 2014Assignee: Gilat Satellite Networks Ltd.Inventors: Dubi Lever, Avraham Avitzour, Amiram Levinberg
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Patent number: 8655992Abstract: 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: GrantFiled: August 2, 2011Date of Patent: February 18, 2014Assignee: Gilat Satellite Networks Ltd.Inventors: Dor Snapir, Dubi Lever, Isacc Ben-Laish
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Publication number: 20120114022Abstract: In a satellite communication system, comprising a hub and a plurality of heterogeneous terminals, the hub may split a bandwidth segment designated for a forward channel into at least two carriers, wherein some of the terminals may listen on a first carrier and some other terminals may listen on the at least second carrier. In this system, the hub may re-arrange the split of the bandwidth segment between the various carriers populating it in real-time or substantially in real-time, while the carriers are actively transmitted, and without causing loss of service and/or loss of data to terminals listening on those carriers. The terminals may be configured to track the carriers as they are re-arranged and to maintain seamless service to the end user throughout the re-arrangement process.Type: ApplicationFiled: November 7, 2011Publication date: May 10, 2012Applicant: GILAT SATELLITE NETWORKS, LTD.Inventors: Dubi Lever, Avraham Avitzour, Amiram Levinberg
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Patent number: 8116265Abstract: To allocate a very small aperture terminal (VSAT) to a modulation and coding pair (MODCOD) in a second generation digital video broadcasting satellite (DVB-S2) adaptive coding and modulation (ACM) system, a hub periodically transmits pilot frames of alternating MODCODs, which are identified by the VSAT. A field-programmable gate array (FPGA) at the VSAT site maintains telemetry of good and bad frames. A processor may then poll this telemetry to determine an optimal MODCOD to be allocated to the VSAT.Type: GrantFiled: November 19, 2008Date of Patent: February 14, 2012Assignee: Gilat Satellite Networks Ltd.Inventors: Dor Snapir, Dubi Lever
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Publication number: 20110286355Abstract: 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: ApplicationFiled: August 2, 2011Publication date: November 24, 2011Applicant: GILAT SATELLITE NETWORKS, LTD.Inventors: Dor Snapir, Dubi Lever, Isacc Ben Laish
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Publication number: 20110164553Abstract: A system and method for packing data over User Packets and packing the User Packets over DVB-S2 Frames, using the DVB-S2-ACM satellite transmission standard.Type: ApplicationFiled: March 11, 2011Publication date: July 7, 2011Applicant: GILAT SATELLITE NETWORKS LTD.Inventors: Uzi Ram, Dor Snapir, Dubi Lever
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Patent number: 7929568Abstract: A system and method for packing data over User Packets and packing the User Packets over DVB-S2 Frames, using the DVB-S2-ACM satellite transmission standard.Type: GrantFiled: August 15, 2007Date of Patent: April 19, 2011Assignee: Gilat Satellite Networks, Inc.Inventors: Uzi Ram, Dor Snapir, Dubi Lever
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Publication number: 20100257259Abstract: 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: ApplicationFiled: September 16, 2009Publication date: October 7, 2010Applicant: GILAT SATELLITE NETWORKS, LTD.Inventors: Dor Snapir, Dubi Lever, Isacc Ben Laish
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Publication number: 20090135789Abstract: To allocate a VSAT to a MODCOD in a DVB-S2 ACM system, the HUB periodically transmits pilot frames of alternating MODCODs, which is identified by the VSAT. An FPGA at a VSAT site maintains telemetry of good and bad frames. A processor polls this telemetry to determine the optimal MODCOD to be allocated to the VSAT.Type: ApplicationFiled: November 19, 2008Publication date: May 28, 2009Applicant: Gilat Satellite Networks, Ltd.Inventors: Dor Snapir, Dubi Lever