Patents by Inventor Eitan Tsur
Eitan Tsur 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: 11005526Abstract: An electronic communication device comprises echo cancellation circuitry and signal modification circuitry. The echo cancellation circuitry may be operable to generate a first signal that approximates interference present in a second signal. The signal modification circuitry may be operable to generate a first cancellation signal in a frequency band that is not used on a communication medium over which the electronic communication device is configured to communicate. The signal modification circuitry may be operable to combine the first cancellation signal with the first signal, wherein the combining of the signals results in a modified first signal that has a lower crest factor and/or peak-to-average power ratio than the first signal. The signal modification circuitry may be operable to combine the modified first signal with the second signal to reduce interference present in the second signal.Type: GrantFiled: March 19, 2019Date of Patent: May 11, 2021Assignee: MaxLinear, Inc.Inventors: Kenneth Scott Walley, Steve Krapp, Eitan Tsur, Sridhar Ramesh
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Patent number: 10601462Abstract: A cable modem comprises transceiver circuitry and echo cancellation training circuitry. The transceiver circuitry may be operable to transmit and receive signals on a full-duplex Data Over Cable System Interface Specification (DOCSIS®) network. The echo cancellation training circuitry may be operable to: determine an echo cancellation training group to which the electronic communication device belongs; determine one or more training periods during which the echo cancellation training group is permitted to transmit training signals; and transmit an echo cancellation training signal during the determined training one or more periods and use the transmitted training signal to train echo cancellation circuitry of the cable modem.Type: GrantFiled: March 18, 2019Date of Patent: March 24, 2020Assignee: MaxLinear, Inc.Inventors: Kenneth Scott Walley, Steve Krapp, Eitan Tsur, Sridhar Ramesh
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Publication number: 20190296791Abstract: An electronic communication device comprises echo cancellation circuitry and signal modification circuitry. The echo cancellation circuitry may be operable to generate a first signal that approximates interference present in a second signal. The signal modification circuitry may be operable to generate a first cancellation signal in a frequency band that is not used on a communication medium over which the electronic communication device is configured to communicate. The signal modification circuitry may be operable to combine the first cancellation signal with the first signal, wherein the combining of the signals results in a modified first signal that has a lower crest factor and/or peak-to-average power ratio than the first signal. The signal modification circuitry may be operable to combine the modified first signal with the second signal to reduce interference present in the second signal.Type: ApplicationFiled: March 19, 2019Publication date: September 26, 2019Inventors: Kenneth Scott Walley, Steve Krapp, Eitan Tsur, Sridhar Ramesh
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Publication number: 20190288742Abstract: A cable modem comprises transceiver circuitry and echo cancellation training circuitry. The transceiver circuitry may be operable to transmit and receive signals on a full-duplex Data Over Cable System Interface Specification (DOCSIS®) network. The echo cancellation training circuitry may be operable to: determine an echo cancellation training group to which the electronic communication device belongs; determine one or more training periods during which the echo cancellation training group is permitted to transmit training signals; and transmit an echo cancellation training signal during the determined training one or more periods and use the transmitted training signal to train echo cancellation circuitry of the cable modem.Type: ApplicationFiled: March 18, 2019Publication date: September 19, 2019Inventors: Kenneth Scott Walley, Steve Krapp, Eitan Tsur, Sridhar Ramesh
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Publication number: 20190281362Abstract: A remote PHY comprises circuitry operable to communicate with a converged cable access platform and a plurality of cable modems in accordance with Data Over Cable Service Interface Specification (DOCSIS®). The remote PHY comprises buffer circuitry operable to buffer signals to be transmitted to one or more of the plurality of cable modems. The remote PHY may comprise subcarrier insertion circuitry operable to manipulate the contents of the buffer circuitry such that the remote PHY is scheduled to transmit, during a determined time interval, subcarriers having determined characteristics. The subcarriers having determined characteristics may be zero-bit-loaded subcarriers.Type: ApplicationFiled: March 6, 2019Publication date: September 12, 2019Inventors: Kenneth Scott Wiley, Steven Krapp, Eitan Tsur, Sridhar Ramesh
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Publication number: 20190215139Abstract: Systems and methods are provided for digital interference cancellation during continuous wave (CW) tests for high quadrature amplitude modulation (QAM) for point-to-point frequency-division duplexing (FDD) systems. During reception of signals, test signals that are configured for assessing performance in accordance with a particular criterion, in a device or a system handling the reception, may be injected. During processing of the received signals, and in response to a determination that the test signals and one or more other signals different than the received RF signals, cause interference to the received RF signals, and where the interference is unrelated to the assessing based on the criteria, one or more cancellation adjustments may be applied, during processing of the RF signals, for mitigating effects of the interference.Type: ApplicationFiled: January 8, 2018Publication date: July 11, 2019Inventors: Kobi Sturkovich, Ronen Shaked, Eitan Tsur
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Patent number: 10243601Abstract: A system and method for frequency reuse for wireless point-to-point backhaul. Frequency reuse is enabled through the cancellation of interfering signals generated by interference sources. In one embodiment, a conventional dish antenna is complemented with one or more additional auxiliary antennas (e.g., isotropic). The one or more additional auxiliary antennas enable cancellation of interfering signals whose direction of arrival (DOA) is off the dish antenna's bore-sight.Type: GrantFiled: December 4, 2017Date of Patent: March 26, 2019Assignee: MAXLINEAR ASIA SINGAPORE PTE LTDInventors: Ronen Shaked, Ilan Reingold, Eitan Tsur, Eran Ridel
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Publication number: 20180159571Abstract: A system and method for frequency reuse for wireless point-to-point backhaul. Frequency reuse is enabled through the cancellation of interfering signals generated by interference sources. In one embodiment, a conventional dish antenna is complemented with one or more additional auxiliary antennas (e.g., isotropic). The one or more additional auxiliary antennas enable cancellation of interfering signals whose direction of arrival (DOA) is off the dish antenna's bore-sight.Type: ApplicationFiled: December 4, 2017Publication date: June 7, 2018Inventors: Ronen Shaked, Ilan Reingold, Eitan Tsur, Eran Ridel
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Patent number: 9843349Abstract: A system and method for frequency reuse for wireless point-to-point backhaul. Frequency reuse is enabled through the cancellation of interfering signals generated by interference sources. In one embodiment, a conventional dish antenna is complemented with one or more additional auxiliary antennas (e.g., isotropic). The one or more additional auxiliary antennas enable cancellation of interfering signals whose direction of arrival (DOA) is off the dish antenna's bore-sight.Type: GrantFiled: August 31, 2016Date of Patent: December 12, 2017Assignee: Maxlinear Asia Singapore PTE LTDInventors: Ronen Shaked, Ilan Reingold, Eitan Tsur, Eran Ridel
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Publication number: 20170033819Abstract: A system and method for frequency reuse for wireless point-to-point backhaul. Frequency reuse is enabled through the cancellation of interfering signals generated by interference sources. In one embodiment, a conventional dish antenna is complemented with one or more additional auxiliary antennas (e.g., isotropic). The one or more additional auxiliary antennas enable cancellation of interfering signals whose direction of arrival (DOA) is off the dish antenna's bore-sight.Type: ApplicationFiled: August 31, 2016Publication date: February 2, 2017Inventors: Ronen Shaked, Ilan Reingold, Eitan Tsur, Eran Ridel
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Patent number: 9444505Abstract: A system and method for frequency reuse for wireless point-to-point backhaul. Frequency reuse is enabled through the cancellation of interfering signals generated by interference sources. In one embodiment, a conventional dish antenna is complemented with one or more additional auxiliary antennas (e.g., isotropic). The one or more additional auxiliary antennas enable cancellation of interfering signals whose direction of arrival (DOA) is off the dish antenna's bore-sight.Type: GrantFiled: December 31, 2014Date of Patent: September 13, 2016Assignee: BROADCOM CORPORATIONInventors: Ronen Shaked, Ilan Reingold, Eitan Tsur, Eran Ridel
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Patent number: 9369320Abstract: An all outdoor unit communication system, for performing cross polarization interference cancellation, is provided. The system includes a first outdoor unit (ODU) configured to receive a first directionally polarized signal, a first RF module configured to convert the first directionally polarized signal into a first in-phase (I) component and a first quadrature (Q) component, and a first modem configured to up-convert the first I and Q components from baseband into a first directionally polarized intermediate frequency (IF) signal. The system being configured to communicate, via an interconnect coupled to the first ODU, a second directionally polarized IF signal to the first ODU, and where the first modem is further configured to utilize the second directionally polarized IF signal to cancel out at least a portion of a first cross-polarization leakage at the first ODU.Type: GrantFiled: May 20, 2015Date of Patent: June 14, 2016Assignee: Broadcom CorporationInventors: Yaacov Sturkovich, Eitan Tsur
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Publication number: 20150326416Abstract: An all outdoor unit communication system, for performing cross polarization interference cancellation, is provided. The system includes a first outdoor unit (ODU) configured to receive a first directionally polarized signal, a first RF module configured to convert the first directionally polarized signal into a first in-phase (I) component and a first quadrature (Q) component, and a first modem configured to up-convert the first I and Q components from baseband into a first directionally polarized intermediate frequency (IF) signal. The system being configured to communicate, via an interconnect coupled to the first ODU, a second directionally polarized IF signal to the first ODU, and where the first modem is further configured to utilize the second directionally polarized IF signal to cancel out at least a portion of a first cross-polarization leakage at the first ODU.Type: ApplicationFiled: May 20, 2015Publication date: November 12, 2015Applicant: Broadcom CorporationInventors: Yaacov STURKOVICH, Eitan Tsur
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Publication number: 20150295601Abstract: A system and method for frequency reuse for wireless point-to-point backhaul. Frequency reuse is enabled through the cancellation of interfering signals generated by interference sources. In one embodiment, a conventional dish antenna is complemented with one or more additional auxiliary antennas (e.g., isotropic). The one or more additional auxiliary antennas enable cancellation of interfering signals whose direction of arrival (DOA) is off the dish antenna's bore-sight.Type: ApplicationFiled: December 31, 2014Publication date: October 15, 2015Inventors: Ronen Shaked, Ilan Reingold, Eitan Tsur, Eran Ridel
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Patent number: 9077407Abstract: Geometrical closed loop line of sight (LOS) multiple-input-multiple-output (MIMO). Singular value decomposition (SVD) processing for a LOS communication channel into respective channel matrices, and appropriate processing of signals within transmitter and/or receiver communication devices operate to support very high data throughput, including approaching or converging to the Shannon limit channel capacity (e.g., bits/sec/Hz). Certain communication systems operate with multi-antenna communication devices, and sometimes, the optimal spacing between those respective antennae cannot be achieved. Appropriate processing can recover most, if not all, of any performance degradation as may be incurred by a deviation from the perfectly optimal spacing between those respective antennae. In addition, any deleterious effects of phase noise among the antennae may be mitigated by driving the antennae using a common or singular local oscillator, or tracking the communication channel (e.g., channel estimation, tracking, etc.Type: GrantFiled: December 28, 2012Date of Patent: July 7, 2015Assignee: Broadcom CorporationInventors: Shay Koren, Yoav Eisenberg, Eitan Tsur
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Patent number: 9059876Abstract: An all outdoor unit communication system, for performing cross polarization interference cancellation, is provided. The system includes a first outdoor unit (ODU) configured to receive a horizontally polarized signal, a first RF module configured to convert the horizontally polarized signal into a first in-phase (I) component and a first quadrature (Q) component, and a first modem configured to up-convert the first I and Q components from baseband into a horizontally polarized intermediate frequency (IF) signal. The system also includes a second ODU configured to receive a vertically polarized signal, a second RF module configured to convert the vertically polarized signal into a second I component and a second Q component, and a second modem configured to up-convert the second I and Q components from baseband into a vertically polarized IF signal. The system is configured to share, via an interconnect, the polarized IF signals between the first and second ODUs.Type: GrantFiled: March 29, 2013Date of Patent: June 16, 2015Assignee: Broadcom CorporationInventors: Yaacov Sturkovich, Eitan Tsur
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Publication number: 20140198867Abstract: An all outdoor unit communication system, for performing cross polarization interference cancellation, is provided. The system includes a first outdoor unit (ODU) configured to receive a horizontally polarized signal, a first RF module configured to convert the horizontally polarized signal into a first in-phase (I) component and a first quadrature (Q) component, and a first modem configured to up-convert the first I and Q components from baseband into a horizontally polarized intermediate frequency (IF) signal. The system also includes a second ODU configured to receive a vertically polarized signal, a second RF module configured to convert the vertically polarized signal into a second I component and a second Q component, and a second modem configured to up-convert the second I and Q components from baseband into a vertically polarized IF signal. The system is configured to share, via an interconnect, the polarized IF signals between the first and second ODUs.Type: ApplicationFiled: March 29, 2013Publication date: July 17, 2014Applicant: Broadcom CorporationInventors: Yaacov Sturkovich, Eitan Tsur
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Publication number: 20130309976Abstract: Geometrical closed loop line of sight (LOS) multiple-input-multiple-output (MIMO). Singular value decomposition (SVD) processing for a LOS communication channel into respective channel matrices, and appropriate processing of signals within transmitter and/or receiver communication devices operate to support very high data throughput, including approaching or converging to the Shannon limit channel capacity (e.g., bits/sec/Hz). Certain communication systems operate with multi-antenna communication devices, and sometimes, the optimal spacing between those respective antennae cannot be achieved. Appropriate processing can recover most, if not all, of any performance degradation as may be incurred by a deviation from the perfectly optimal spacing between those respective antennae. In addition, any deleterious effects of phase noise among the antennae may be mitigated by driving the antennae using a common or singular local oscillator, or tracking the communication channel (e.g., channel estimation, tracking, etc.Type: ApplicationFiled: December 28, 2012Publication date: November 21, 2013Applicant: BROADCOM CORPORATIONInventors: Shay Koren, Yoav Eisenberg, Eitan Tsur
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Patent number: 8576899Abstract: A DSL communication system and a method for configuring a DSL communication system. The method includes training at least one anchor DSL modem transmitter to transmit information over at least one anchor line at an anchor bit rate that is determined based on an allowable tolerable noise level and a minimum allowable signal-to-noise ratio (SNR) margin; training one or more other DSL modem transmitter to transmit information over one or more other line at a bit rate that is determined by a current noise level and a target SNR margin, wherein the target SNR margin is higher than the minimum allowable SNR margin; and transmitting information by at least one trained DSL modem transmitter to at least one DSL modem receiver.Type: GrantFiled: August 19, 2009Date of Patent: November 5, 2013Assignee: Actelis Networks (Israel) Ltd.Inventors: Ioannis Kanellakopoulos, Amit Levy, Tuvia Barlev, Maya Bar-El, Amit Priebatch, Eitan Tsur
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Publication number: 20120020395Abstract: A system and a method for crosstalk cancellation, the method includes: (i) generating estimated crosstalk cancellation matrices for each frequency bin of a group of adjacent frequency bins, wherein each estimated crosstalk cancellation matrix provides an estimation of a crosstalk cancellation that is expected to mitigate crosstalk that is generated at a single frequency bin by an array of transmitters that transmit information over different copper pairs that form a bonded digital subscriber line link; (ii) generating a group crosstalk cancellation matrix based on the estimated crosstalk cancellation matrices, wherein a size of the group crosstalk cancellation matrix is smaller that an aggregate size of the estimated crosstalk cancellation matrices; and (iii) cancelling crosstalk for each frequency bin of the group by utilizing the group crosstalk cancellation matrix.Type: ApplicationFiled: December 23, 2009Publication date: January 26, 2012Inventors: Elad Domanovitz, Eitan Tsur