Patents by Inventor Sam Heidari

Sam Heidari 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).

  • Publication number: 20190285745
    Abstract: An acoustic spatial diagnostic circuit couples to an array of microphones to successively sample an acoustic environment surrounding a wireless transceiver to generate an acoustic spatial map of activity within the environment based on sets of acoustic samples and execute one or more actions based on a related portion of the acoustic spatial map exhibiting one or more correlations with a spatial context condition of a wireless trained transceiver.
    Type: Application
    Filed: June 3, 2019
    Publication date: September 19, 2019
    Applicant: Quantenna Communications, Inc.
    Inventors: Aykut BULTAN, Narayanan BHARATH, Sam HEIDARI, Hossein DEHGHAN
  • Patent number: 10321341
    Abstract: A wireless access point (WAP) configured to support a wireless home network among multiple wireless devices over a shared wireless communication medium on a selected channel. In an embodiment of the invention the WAP includes a channel tracker configured to track performance metrics over time for at least the selected channel; and to predict based on the tracked performance metrics at least one of: a predicted time of an impending channel changeover requirement in which a projected demand for the selected channel exceeds a projected capacity thereof and a predicted time of an impending monitoring interval for monitoring an unselected channel with relatively minimal disruption of communications on the selected channel. In another embodiment of the invention the WAP includes receive path components configured to concurrently process both communications on the selected channel together with monitored communications on an unselected channel.
    Type: Grant
    Filed: February 18, 2016
    Date of Patent: June 11, 2019
    Assignee: QUANTENNA COMMUNICATIONS, INC.
    Inventors: Stephane Cattet, Babak Soltanian, Sigurd Schelstraete, Vahbod Pourahmad, Sam Heidari, Ali Rouhi, James Herbert, Richard Kinder
  • Patent number: 10310082
    Abstract: A wireless transceiver including: at least one antenna; a plurality of transmit and receive path components; an array of microphones; an acoustic spatial diagnostic circuit and a rule execution circuit. The plurality of components form transmit and receive paths coupled to the at least one antenna. The acoustic spatial diagnostic circuit couples to the array of microphones to successively sample an acoustic environment surrounding the wireless transceiver and to determine from each set of acoustic samples an acoustic spatial map of at least humans within the surrounding environment. The rule execution circuit couples to the spatial diagnostic circuit to execute an action proscribed by a selected rule when a related portion of the acoustic spatial map sampled by the spatial diagnostic circuit exhibits a correlation above a threshold amount with a spatial context condition associated with the selected rule.
    Type: Grant
    Filed: November 12, 2017
    Date of Patent: June 4, 2019
    Assignee: QUANTENNA COMMUNICATIONS, INC.
    Inventors: Aykut Bultan, Narayanan Bharath, Sam Heidari, Hossein Dehghan
  • Publication number: 20190033446
    Abstract: A wireless transceiver including: at least one antenna; a plurality of transmit and receive path components; an array of microphones; an acoustic spatial diagnostic circuit and a rule execution circuit. The plurality of components form transmit and receive paths coupled to the at least one antenna. The acoustic spatial diagnostic circuit couples to the array of microphones to successively sample an acoustic environment surrounding the wireless transceiver and to determine from each set of acoustic samples an acoustic spatial map of at least humans within the surrounding environment. The rule execution circuit couples to the spatial diagnostic circuit to execute an action proscribed by a selected rule when a related portion of the acoustic spatial map sampled by the spatial diagnostic circuit exhibits a correlation above a threshold amount with a spatial context condition associated with the selected rule.
    Type: Application
    Filed: November 12, 2017
    Publication date: January 31, 2019
    Inventors: Aykut BULTAN, Narayanan BHARATH, Sam Heidari, Hossein DEHGHAN
  • Publication number: 20180249506
    Abstract: A wireless access point (WAP) including: antennas, shared and discrete components forming transmit and receive chains coupled to the antenna for orthogonal frequency division multiplexed (OFDM) multiple-input multiple-output (MIMO) WLAN communications with wireless stations. The station set identifier identifies any legacy stations that do not support multi-user (MU) MIMO concurrent downlinks from the WAP, and a number of WLAN subnets for concurrent downlinks communications thereto. The subnet controller generates the WLAN subnets each having a discrete beacon channel together with a discrete medium access control (MAC) for collision sense multiple access (CSMA) uplinks from associated stations to the WAP, and concurrent downlinks from the WAP including concurrent downlinks to legacy stations associated with different subnets; and the subnet controller configured to inject virtual access control indicia into each of the subnets to control uplinks from legacy stations on each of the subnets to the WAP.
    Type: Application
    Filed: April 29, 2018
    Publication date: August 30, 2018
    Inventors: Bahador AMIRI, Hossein Dehghan, Qasem ALDRUBI, Sam HEIDARI
  • Patent number: 9992795
    Abstract: A wireless access point (WAP) including: antennas, shared and discrete components forming transmit and receive chains coupled to the antenna for orthogonal frequency division multiplexed (OFDM) multiple-input multiple-output (MIMO) WLAN communications with wireless stations. The station set identifier identifies any legacy stations that do not support multi-user (MU) MIMO concurrent downlinks from the WAP, and a number of WLAN subnets for concurrent downlinks communications thereto. The subnet controller generates the WLAN subnets each having a discrete beacon channel together with a discrete medium access control (MAC) for collision sense multiple access (CSMA) uplinks from associated stations to the WAP, and concurrent downlinks from the WAP including concurrent downlinks to legacy stations associated with different subnets; thereby enabling concurrent downlink communications with said legacy stations despite their lack of support for MU-MIMO.
    Type: Grant
    Filed: June 16, 2015
    Date of Patent: June 5, 2018
    Assignee: Quantenna Communications, Inc.
    Inventors: Bahador Amiri, Hossein Dehghan, Qasem Aldrubi, Sam Heidari
  • Patent number: 9866308
    Abstract: A wireless transceiver including: an array of antennas; a plurality of transmit and receive path components; an array of microphones; a composite spatial diagnostic circuit and a rule execution circuit. The plurality of components form transmit and receive paths coupled to the array of antennas for processing wireless communications. The composite spatial diagnostic circuit couples to the array of antennas and to the array of microphones to successively sample respectively a WiFi environment and an acoustic environment surrounding the wireless transceiver and to determine from each set of WiFi and acoustic samples a composite spatial map of humans and wireless transceivers within the surrounding environment. The rule execution circuit executes an action proscribed by a selected rule when a related portion of the composite spatial map sampled by the composite spatial diagnostic circuit exhibits a correlation above a threshold amount with a spatial context condition associated with the selected rule.
    Type: Grant
    Filed: July 27, 2017
    Date of Patent: January 9, 2018
    Assignee: Quantenna Communications, Inc.
    Inventors: Aykut Bultan, Narayanan Bharath, Sam Heidari, Hossein Dehghan
  • Patent number: 9807635
    Abstract: A diagnostic system for spatial diagnosis of the WLAN includes: a sounding aggregator and a spatial correlator. The sounding aggregator is configured to aggregate multiple-input multiple-output (MIMO) channel state information (CSI) from channel soundings of the WLAN, including channel soundings between a wireless access point (WAP) node and associated station nodes on a selected one of a plurality of communication channels of the WLAN. The spatial correlator is coupled to the sounding aggregator and configured to correlate CSI from the channel soundings with spatial characteristics of the WLAN including at least one of: a change in location of a WLAN node, human activity among the WLAN nodes, and structural impediments among WLAN nodes.
    Type: Grant
    Filed: May 30, 2015
    Date of Patent: October 31, 2017
    Assignee: Quantenna Communications, Inc.
    Inventors: Sigurd Schelstraete, Hossein Dehghan, Sam Heidari, Bahador Amiri
  • Patent number: 9698878
    Abstract: A transceiver for a wireless local area network (WLAN) and the transceiver including a sounding feedback module and a sounding feedforward module. The sounding feedback module is responsive to an explicit sounding from a transmitting one of the nodes to send feedback of multiple-input multiple-output (MIMO) channel state information (CSI) derived from the channel sounding to the transmitting one of the nodes for improving subsequent transmissions. The sounding feedforward module is configured to monitor changes in CSI since the last explicit sounding based on CSI determined from the subsequent transmissions of the transmitting one of the nodes and responsive to a determination of a change in CSI above a threshold amount, to feedforward to the transmitting one of the nodes indicia of the change in CSI.
    Type: Grant
    Filed: June 16, 2015
    Date of Patent: July 4, 2017
    Assignee: Quantenna Communications, Inc.
    Inventors: Sigurd Schelstraete, Hossein Dehghan, Sam Heidari, Bahador Amiri
  • Publication number: 20160127937
    Abstract: A diagnostic system for spatial diagnosis of the WLAN includes: a sounding aggregator and a spatial correlator. The sounding aggregator is configured to aggregate multiple-input multiple-output (MIMO) channel state information (CSI) from channel soundings of the WLAN, including channel soundings between a wireless access point (WAP) node and associated station nodes on a selected one of a plurality of communication channels of the WLAN. The spatial correlator is coupled to the sounding aggregator and configured to correlate CSI from the channel soundings with spatial characteristics of the WLAN including at least one of: a change in location of a WLAN node, human activity among the WLAN nodes, and structural impediments among WLAN nodes.
    Type: Application
    Filed: May 30, 2015
    Publication date: May 5, 2016
    Inventors: Sigurd SCHELSTRAETE, Hossein DEHGHAN, Sam HEIDARI, Bahador AMIRI
  • Publication number: 20160127019
    Abstract: A transceiver for a wireless local area network (WLAN) and the transceiver including a sounding feedback module and a sounding feedforward module. The sounding feedback module is responsive to an explicit sounding from a transmitting one of the nodes to send feedback of multiple-input multiple-output (MIMO) channel state information (CSI) derived from the channel sounding to the transmitting one of the nodes for improving subsequent transmissions. The sounding feedforward module is configured to monitor changes in CSI since the last explicit sounding based on CSI determined from the subsequent transmissions of the transmitting one of the nodes and responsive to a determination of a change in CSI above a threshold amount, to feedforward to the transmitting one of the nodes indicia of the change in CSI.
    Type: Application
    Filed: June 16, 2015
    Publication date: May 5, 2016
    Inventors: Sigurd SCHELSTRAETE, Hossein DEHGHAN, Sam HEIDARI, Bahador AMIRI
  • Patent number: 9332554
    Abstract: A wireless apparatus node supporting wireless communications on a wireless local area network (WLAN). The wireless apparatus node includes: a local link prober, a remote link prober, a cross-link interference estimator, and a concurrent access controller. The local link prober probes a target node for channel information characterizing a communication channel for a local link therewith. The remote link prober probes a pair of device nodes on the WLAN capable of forming a remote link for cross-channel information characterizing communication channels there between. The cross-link interference estimator estimates interference signal levels at each node of the remote link resulting from communication over the local link. The concurrent access controller is responsive to a determination of an active communication on the remote link to allow a concurrent communication on the local link when interference levels at the remote link fall below a threshold level.
    Type: Grant
    Filed: March 6, 2014
    Date of Patent: May 3, 2016
    Assignee: Quantenna Communications, Inc
    Inventors: Sam Heidari, Bahador Amiri
  • Patent number: 9107090
    Abstract: A structural correlation manager for managing wireless local area networks (WLAN) each supporting wireless communications between an associated access point node and associated station nodes on a corresponding one of a plurality of communication channels across an available spectrum. The apparatus comprises a structural correlation manager including a structural identifier to identify an architectural structure surrounding the WLAN; and a correlator configured to correlate the architectural structure surrounding the nodes and the communication parameters utilized by the nodes to maximize wireless communications within structure and minimize wireless communications outside the structure.
    Type: Grant
    Filed: May 31, 2013
    Date of Patent: August 11, 2015
    Assignee: Quantenna Communications, Inc.
    Inventors: Bahador Amiri, Sam Heidari, Hossein Dehghan
  • Patent number: 9088962
    Abstract: A wireless access point (WAP) including: a station set identifier and a subnet controller. The station set identifier is configured to identify at least one set of at least two station nodes among the plurality of station nodes and complementary communication options for each station in the at least one set which facilitate concurrent communications between the WAP and the stations in the set. The subnet controller is configured both to generate subnets equal in number to a number of stations in at least one set, and for each subnet an associated beacon channel discrete from the beacon channels of other subnets, together with any required aggregate channels matching each station's identified communication option and an associated medium access control, and further to control transmission of data from the WAP to the at least two station nodes concurrently on the associated subnets.
    Type: Grant
    Filed: March 28, 2014
    Date of Patent: July 21, 2015
    Assignee: Quantenna Communications Inc.
    Inventors: Bahador Amiri, Hossein Dehghan, Qasem Aldrubi, Sam Heidari
  • Patent number: 9078153
    Abstract: A diagnostic system for spatial diagnosis of the WLAN includes: a sounding aggregator and a spatial correlator. The sounding aggregator is configured to aggregate multiple-input multiple-output (MIMO) channel state information (CSI) from channel soundings of the WLAN, including channel soundings between a wireless access point (WAP) node and associated station nodes on a selected one of a plurality of communication channels of the WLAN. The spatial correlator is coupled to the sounding aggregator and configured to correlate CSI from the channel soundings with spatial characteristics of the WLAN including at least one of: a change in location of a WLAN node, human activity among the WLAN nodes, and structural impediments among WLAN nodes.
    Type: Grant
    Filed: October 31, 2014
    Date of Patent: July 7, 2015
    Assignee: Quantenna Communications, Inc.
    Inventors: Sigurd Schelstraete, Hossein Dehghan, Sam Heidari, Bahador Amiri
  • Patent number: 8902769
    Abstract: A wireless access point configured to support a wireless home network among multiple wireless devices contending with one another for access to a shared wireless communication medium. The wireless access point comprises a link monitor and a link manager. The link monitor monitors communication links with each of the wireless devices and for detects oversubscription of the wireless communication medium by the communication links. The link manager couples to the link monitor and is responsive to an oversubscription indication therefrom to arbitrate access to the shared wireless communication medium among the contending wireless devices.
    Type: Grant
    Filed: September 26, 2011
    Date of Patent: December 2, 2014
    Assignee: Quantenna Communications, Inc.
    Inventors: Hossein Dehghan, Safiali Rouhi, Sam Heidari
  • Publication number: 20140293983
    Abstract: A wireless access point (WAP) including: a station set identifier and a subnet controller. The station set identifier is configured to identify at least one set of at least two station nodes among the plurality of station nodes and complementary communication options for each station in the at least one set which facilitate concurrent communications between the WAP and the stations in the set. The subnet controller is configured both to generate subnets equal in number to a number of stations in at least one set, and for each subnet an associated beacon channel discrete from the beacon channels of other subnets, together with any required aggregate channels matching each station's identified communication option and an associated medium access control, and further to control transmission of data from the WAP to the at least two station nodes concurrently on the associated subnets.
    Type: Application
    Filed: March 28, 2014
    Publication date: October 2, 2014
    Inventors: Bahador AMIRI, Hossein Dehghan, Qasem ALDRUBI, Sam HEIDARI
  • Patent number: 8767657
    Abstract: A wireless device with multiple antennae and configured to support orthogonal frequency-division multiplexed (OFDM), multiple-input multiple-output (MIMO) communications of a wireless local area network (LAN) among multiple wireless devices over a shared wireless communication medium on a shared communication channel. The wireless access device comprises: a mixed-mode MIMO detector configured to allocate a mix of linear and non-linear MIMO detectors among received OFDM sub-channels of the shared communication channel, thereby reducing a level of complexity associated with reception of MIMO streams exclusively via non-linear MIMO detectors.
    Type: Grant
    Filed: April 19, 2012
    Date of Patent: July 1, 2014
    Assignee: Quantenna Communications Inc.
    Inventors: Hossein Dehghan, Sam Heidari, Muhammad Abdelghaffar
  • Patent number: 8755455
    Abstract: Adjusting a Modulation and Coding Scheme (MCS) or more generally, Layer One parameters, for a data packet based on packet information and priority is disclosed. The packet information can typically be extracted from the packet's header. Considering packet-specific information enables cross-layer optimization that can include consideration of packet error rate (PER) constraints, delay constraints, relative importance of packets within a data stream, beamforming (e.g., off or on, implicit or explicit—longer distances are more likely to merit implicit beamforming) constraints, and aggregation as a function of MCS or channel condition (more aggregation is generally desirable for higher MCS or better channels), to name several examples. It is also possible to differentiate drop probability based on the importance of frames like anchor frames, etc.
    Type: Grant
    Filed: January 12, 2011
    Date of Patent: June 17, 2014
    Assignee: Quantenna Communications Inc.
    Inventors: Sam Heidari, Rajkumar Samuel, Sigurd Schelstraete
  • Patent number: 8711741
    Abstract: Networked modems configurable to establish a communication system on a wired communication medium. Each modem includes: a network module, transmit and receive path modules and a frequency domain echo canceller. The network module is configured to communicate with network modules of remaining ones of the at least three modems to allocate bandwidth of the shared communications medium for at least two discrete point-to-point communication links between corresponding pairs of the at least three modems. The transmit and receive path modules are configured for multi-tone modulation and demodulation of communications on the wired communication medium and are responsive to the bandwidth allocation of the network module to concurrently process at least a first discrete point-to-point communication link with a first modem among remaining ones of the at least three modems and at least a second discrete point-to-point communication link with a second among remaining ones of the at least three modems.
    Type: Grant
    Filed: May 24, 2007
    Date of Patent: April 29, 2014
    Assignee: Ikanos Communications Inc.
    Inventors: Sam Heidari, Hossein Dehghan, Sigurd Schelstraete