Patents by Inventor Tzahi Weisman
Tzahi Weisman 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: 20230388071Abstract: This disclosure describes systems, methods, and devices related to adaptation of secure sounding signal. A device may determine a negotiated bandwidth to be used when communicating with a first station device. The device may determine a first bit stream used to generate a cyclic shift diversity (CSD) value based on the negotiated bandwidth, wherein a first number of bits is used for the first bit stream when a first negotiated bandwidth is used, and wherein a second number of bits is used for the first bit stream when a second negotiated bandwidth is used. The device may determine a second bit stream used to generate a random phase. The device may determine a secure a long training field (LTF) based on a combination of the first bit stream and the second bit stream. The device may cause to send a frame to the first station device, wherein the frame comprises the secure LTF.Type: ApplicationFiled: March 27, 2023Publication date: November 30, 2023Inventors: Feng JIANG, Qinghua LI, Xiaogang CHEN, Dibakar DAS, Assaf GUREVITZ, Jonathan SEGEV, Robert STACEY, Shlomi VITURI, Tzahi WEISMAN
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Patent number: 11616615Abstract: This disclosure describes systems, methods, and devices related to adaptation of secure sounding signal. A device may determine a negotiated bandwidth to be used when communicating with a first station device. The device may determine a first bit stream used to generate a cyclic shift diversity (CSD) value based on the negotiated bandwidth, wherein a first number of bits is used for the first bit stream when a first negotiated bandwidth is used, and wherein a second number of bits is used for the first bit stream when a second negotiated bandwidth is used. The device may determine a second bit stream used to generate a random phase. The device may determine a secure a long training field (LTF) based on a combination of the first bit stream and the second bit stream. The device may cause to send a frame to the first station device, wherein the frame comprises the secure LTF.Type: GrantFiled: January 7, 2020Date of Patent: March 28, 2023Assignee: INTEL CORPORATIONInventors: Feng Jiang, Qinghua Li, Xiaogang Chen, Dibakar Das, Assaf Gurevitz, Jonathan Segev, Robert Stacey, Shlomi Vituri, Tzahi Weisman
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Publication number: 20200145160Abstract: This disclosure describes systems, methods, and devices related to adaptation of secure sounding signal. A device may determine a negotiated bandwidth to be used when communicating with a first station device. The device may determine a first bit stream used to generate a cyclic shift diversity (CSD) value based on the negotiated bandwidth, wherein a first number of bits is used for the first bit stream when a first negotiated bandwidth is used, and wherein a second number of bits is used for the first bit stream when a second negotiated bandwidth is used. The device may determine a second bit stream used to generate a random phase. The device may determine a secure a long training field (LTF) based on a combination of the first bit stream and the second bit stream. The device may cause to send a frame to the first station device, wherein the frame comprises the secure LTF.Type: ApplicationFiled: January 7, 2020Publication date: May 7, 2020Inventors: Feng Jiang, Qinghua Li, Xiaogang Chen, Dibakar Das, Assaf Gurevitz, Jonathan Segev, Robert Stacey, Shlomi Vituri, Tzahi Weisman
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Patent number: 10404331Abstract: A wireless device configured to process Multiple-Input Multiple-Output (MIMO) data streams. The wireless device includes a Singular Value Decompostion (SVD) engine configured to diagonalize a channel matrix into a precoding matrix; an SVD rotation engine configured to phase-rotate the precoding matrix, such that the channel matrix is partially de-diagnalized; and a transmitter configured to transmit a data packet corresponding to the phase-rotated precoding matrix.Type: GrantFiled: December 20, 2016Date of Patent: September 3, 2019Assignee: Intel IP CorporationInventors: Tzahi Weisman, Shlomi Vituri, Assaf Gurevitz
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Patent number: 10405273Abstract: Embodiments of an access point (AP), station (STA) and method for subcarrier scaling are generally described herein. The AP may transmit a high efficiency (HE) physical layer convergence procedure (PLCP) protocol data unit (PPDU) that includes a legacy long training field (L-LTF), a legacy signal (L-SIG) field, and an HE signal (HE-SIG) field. The HE-SIG may be based on HE-SIG symbols mapped to a group of HE subcarriers that includes legacy subcarriers and HE extension subcarriers. The L-LTF may be based on L-LTF pilot symbols mapped to the legacy subcarriers. The L-SIG may be based on L-SIG legacy symbols mapped to the legacy subcarriers and L-SIG extension pilot symbols mapped to the HE extension subcarriers. The AP may scale a per-subcarrier power of the L-SIG extension pilot symbols to match a per-subcarrier power of the L-LTF pilot symbols.Type: GrantFiled: March 8, 2018Date of Patent: September 3, 2019Assignee: Intel IP CorporationInventors: Xiaogang Chen, Qinghua Li, Assaf Gurevitz, Tzahi Weisman
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Publication number: 20180199283Abstract: Embodiments of an access point (AP), station (STA) and method for subcarrier scaling are generally described herein. The AP may transmit a high efficiency (HE) physical layer convergence procedure (PLCP) protocol data unit (PPDU) that includes a legacy long training field (L-LTF), a legacy signal (L-SIG) field, and an HE signal (HE-SIG) field. The HE-SIG may be based on HE-SIG symbols mapped to a group of HE subcarriers that includes legacy subcarriers and HE extension subcarriers. The L-LTF may be based on L-LTF pilot symbols mapped to the legacy subcarriers. The L-SIG may be based on L-SIG legacy symbols mapped to the legacy subcarriers and L-SIG extension pilot symbols mapped to the HE extension subcarriers. The AP may scale a per-subcarrier power of the L-SIG extension pilot symbols to match a per-subcarrier power of the L-LTF pilot symbols.Type: ApplicationFiled: March 8, 2018Publication date: July 12, 2018Inventors: Xiaogang Chen, Qinghua Li, Assaf Gurevitz, Tzahi Weisman
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Patent number: 10009840Abstract: Embodiments of an access point (AP), station (STA) and method for subcarrier scaling are generally described herein. The AP may transmit a high efficiency (HE) physical layer convergence procedure (PLCP) protocol data unit (PPDU) that includes a legacy long training field (L-LTF), a legacy signal (L-SIG) field, and an HE signal (HE-SIG) field. The HE-SIG may be based on HE-SIG symbols mapped to a group of HE subcarriers that includes legacy subcarriers and HE extension subcarriers. The L-LTF may be based on L-LTF pilot symbols mapped to the legacy subcarriers. The L-SIG may be based on L-SIG legacy symbols mapped to the legacy subcarriers and L-SIG extension pilot symbols mapped to the HE extension subcarriers. The AP may scale a per-subcarrier power of the L-SIG extension pilot symbols to match a per-subcarrier power of the L-LTF pilot symbols.Type: GrantFiled: September 21, 2016Date of Patent: June 26, 2018Assignee: Intel IP CorporationInventors: Xiaogang Chen, Qinghua Li, Assaf Gurevitz, Tzahi Weisman
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Publication number: 20180175918Abstract: A wireless device configured to process Multiple-Input Multiple-Output (MIMO) data streams. The wireless device includes a Singular Value Decompostion (SVD) engine configured to diagonalize a channel matrix into a precoding matrix; an SVD rotation engine configured to phase-rotate the precoding matrix, such that the channel matrix is partially de-diagnalized; and a transmitter configured to transmit a data packet corresponding to the phase-rotated precoding matrix.Type: ApplicationFiled: December 20, 2016Publication date: June 21, 2018Inventors: Tzahi Weisman, Shlomi Vituri, Assaf Gurevitz
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Patent number: 9813190Abstract: Described herein are technologies related to an implementation of a closed-loop system to measure and compensate non-linearity in a transceiver circuitry of a device.Type: GrantFiled: July 1, 2016Date of Patent: November 7, 2017Assignee: Intel IP CorporationInventors: Ilan Sutskover, Roy Nahum, Yuval Dafna, Ran Shimon, Tzahi Weisman, Roy Amel
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Publication number: 20170265129Abstract: Embodiments of an access point (AP), station (STA) and method for subcarrier scaling are generally described herein. The AP may transmit a high efficiency (HE) physical layer convergence procedure (PLCP) protocol data unit (PPDU) that includes a legacy long training field (L-LTF), a legacy signal (L-SIG) field, and an HE signal (HE-SIG) field. The HE-SIG may be based on HE-SIG symbols mapped to a group of HE subcarriers that includes legacy subcarriers and HE extension subcarriers. The L-LTF may be based on L-LTF pilot symbols mapped to the legacy subcarriers. The L-SIG may be based on L-SIG legacy symbols mapped to the legacy subcarriers and L-SIG extension pilot symbols mapped to the HE extension subcarriers. The AP may scale a per-subcarrier power of the L-SIG extension pilot symbols to match a per-subcarrier power of the L-LTF pilot symbols.Type: ApplicationFiled: September 21, 2016Publication date: September 14, 2017Inventors: Xiaogang Chen, Qinghua Li, Assaf Gurevitz, Tzahi Weisman
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Patent number: 9264266Abstract: A method and system for receiving and decoding horizontally encoded MIMO-OFDM transmissions with improved efficiency. In one embodiment, MIMO decoding is performed on each of the extracted separate tones of a MIMO-OFDM signal to extract and demodulate frequency domain symbols of the first layer corresponding to one or more code blocks. For each code block of the first layer that passes an error check, corresponding portions of the second layer are decoded using SIMO decoding.Type: GrantFiled: December 29, 2011Date of Patent: February 16, 2016Assignee: Intel CorporationInventors: Tzahi Weisman, Tom Harel, Ayelet Doron
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Patent number: 8964914Abstract: Some demonstrative embodiments include devices, systems and/or methods of combining received wireless communication signals. For example, a device may include a radio-frequency (RF) combiner to combine first and second wireless communication RF signals of a wireless communication frame received via first and second respective antennas, into a combined signal; and a base-band phase estimator to estimate a phase difference between the first and the second antennas, and to provide to the RF combiner a feedback corresponding to the phase difference, wherein the radio-frequency combiner is to combine the first and the second RF signals according to the feedback.Type: GrantFiled: August 30, 2011Date of Patent: February 24, 2015Assignee: Intel CorporationInventors: Rotem Avivi, Assaf Gurevitz, Tzahi Weisman
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Patent number: 8830972Abstract: A method and system for adaptive mitigation of noise interference in a receiver. In one embodiment of the invention, the receiver determines the type of the dominant noise interference among one or more noise interferences. The receiver determines or optimizes the estimation and averaging process of the noise covariance matrix based on the type of the dominant noise interference in one embodiment of the invention. This allows dynamic selection and adaptation of the noise estimate covariance matrix based on the noise type in one embodiment of the invention.Type: GrantFiled: July 27, 2011Date of Patent: September 9, 2014Assignee: Intel CorporationInventors: Rotem Avivi, Tzahi Weisman
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Patent number: 8711985Abstract: A system and method for decoding a Multi User (MU) Multiple Input Multiple Output (MIMO) signal is disclosed. The method comprises receiving a selected symbol in a tone of an MU-MIMO signal at a mobile communication device. A channel response for the selected symbol is identified. Spatial whitening is applied to the tone and the channel response using an average of a co-user interference plus noise matrix that is averaged over a selected number of tones. Maximal ratio combining is performed for the spatially whitened tone and the spatially whitened channel response matrix to decode the selected symbol out of the spatially whitened tone.Type: GrantFiled: July 1, 2011Date of Patent: April 29, 2014Assignee: Intel CorporationInventors: Tzahi Weisman, Ayelet Doron
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Patent number: 8707145Abstract: Techniques to decode tail biting convolutional code are disclosed. A plurality of sets for a trellis may be determined. Each set may include a first stage and a second stage of the trellis. Path metrics for each state in a set may be determined when the first stage and the second stage have a same state. The path metrics may be compared to determine a state with a minimum path metric. Bits from the state with the minimum path metric may be output. Other embodiments are described and claimed.Type: GrantFiled: March 29, 2011Date of Patent: April 22, 2014Assignee: Intel CorporationInventors: Tzahi Weisman, Tom Harel
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Publication number: 20140073346Abstract: A device, system, and method are presented for detecting motion. The system may include the device and a first transmitter and a second transmitter configured to transmit a first set of wireless signals and a second set of wireless signals, respectively. The device may have a receiver configured to receive the first and second set of wireless signals, and may further include a processing unit that determines a first value and a second value indicative of fading attenuations experienced by the first set of wireless signals and the second set of wireless signals, respectively. The processing unit may further determine whether the first and second values are each consistent with motion of an object in proximity to the device. The processing unit may cause the device to output an indication of presence of the object if both values are consistent with motion of the object in proximity to the device.Type: ApplicationFiled: September 7, 2012Publication date: March 13, 2014Inventors: Lei Yang, Xue Yang, Tzahi Weisman, Anthony G. Lamarca
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Patent number: 8660578Abstract: A device, system, and method are presented for detecting motion. The system may include the device and a first transmitter and a second transmitter configured to transmit a first set of wireless signals and a second set of wireless signals, respectively. The device may have a receiver configured to receive the first and second set of wireless signals, and may further include a processing unit that determines a first value and a second value indicative of fading attenuations experienced by the first set of wireless signals and the second set of wireless signals, respectively. The processing unit may further determine whether the first and second values are each consistent with motion of an object in proximity to the device. The processing unit may cause the device to output an indication of presence of the object if both values are consistent with motion of the object in proximity to the device.Type: GrantFiled: September 7, 2012Date of Patent: February 25, 2014Assignee: Intel CorporationInventors: Lei Yang, Xue Yang, Tzahi Weisman, Anthony G. Lamarca
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Publication number: 20130343500Abstract: Some demonstrative embodiments include devices, systems and/or methods of combining received wireless communication signals. For example, a device may include a radio-frequency (RF) combiner to combine first and second wireless communication RF signals of a wireless communication frame received via first and second respective antennas, into a combined signal; and a base-band phase estimator to estimate a phase difference between the first and the second antennas, and to provide to the RF combiner a feedback corresponding to the phase difference, wherein the radio-frequency combiner is to combine the first and the second RF signals according to the feedback.Type: ApplicationFiled: August 30, 2011Publication date: December 26, 2013Inventors: Rotem Avivi, Assaf Gurevitz, Tzahi Weisman
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Publication number: 20130170534Abstract: A method and system for receiving and decoding horizontally encoded MIMO-OFDM transmissions with improved efficiency. In one embodiment, MIMO decoding is performed on each of the extracted separate tones of a MIMO-OFDM signal to extract and demodulate frequency domain symbols of the first layer corresponding to one or more code blocks. For each code block of the first layer that passes an error check, corresponding portions of the second layer are decoded using SIMO decoding.Type: ApplicationFiled: December 29, 2011Publication date: July 4, 2013Inventors: Tzahi Weisman, Tom Harel, Ayelet Doron
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Publication number: 20130028244Abstract: A method and system for adaptive mitigation of noise interference in a receiver. In one embodiment of the invention, the receiver determines the type of the dominant noise interference among one or more noise interferences. The receiver determines or optimizes the estimation and averaging process of the noise covariance matrix based on the type of the dominant noise interference in one embodiment of the invention. This allows dynamic selection and adaptation of the noise estimate covariance matrix based on the noise type in one embodiment of the invention.Type: ApplicationFiled: July 27, 2011Publication date: January 31, 2013Inventors: Rotem Avivi, Tzahi Weisman