Patents by Inventor Ariton E. Xhafa

Ariton E. Xhafa 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).

  • Patent number: 10375509
    Abstract: Embodiments of the invention include a method for creating probe requests. The method is used when positioning is required. A short probe request is constructed with SSID set to GPS SSID_NAME. Another method continues after a short probe response is received. It is determined if a SSID of the probe response matches the SSID of the short probe request. If it does send an ACK.
    Type: Grant
    Filed: October 23, 2013
    Date of Patent: August 6, 2019
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Deric W. Waters, Ariton E. Xhafa
  • Publication number: 20190200161
    Abstract: Embodiments of the invention include a method for creating probe requests. The method is used when positioning is required. A short probe request is constructed with SSID set to GPS SSID_NAME. Another method continues after a short probe response is received. It is determined if a SSID of the probe response matches the SSID of the short probe request. If it does send an ACK.
    Type: Application
    Filed: October 23, 2013
    Publication date: June 27, 2019
    Applicant: Texas Instruments Incorporated
    Inventors: Deric W. Waters, Ariton E. Xhafa
  • Publication number: 20190069315
    Abstract: A network includes a parent node and at least one child node configured to communicate with the parent node via a wireless network protocol. The parent node includes a broadcast coordinator to transmit a broadcast message from the parent node to the child node at predetermined time intervals according to the wireless network protocol. A scheduler generates a scheduling packet that is communicated in the broadcast message. The scheduling packet includes a data field to instruct each child node to activate and receive data communicated from the parent node in a prescribed time slot following the broadcast message that is defined by the scheduling packet.
    Type: Application
    Filed: October 30, 2018
    Publication date: February 28, 2019
    Inventors: Arvind K. Raghu, Ariton E. Xhafa, Ramanuja Vedantham, Xiaolin Lu
  • Patent number: 10129725
    Abstract: A method of transmitting association requests in a wireless sensor network includes transmitting an association request from a leaf node to an intermediate node. The method further includes transmitting the association request from the intermediate node during one of either a shared time slot or a dedicated time slot in response to at least one of the timing of dedicated time slots and data collision rates during shared time slots.
    Type: Grant
    Filed: March 27, 2017
    Date of Patent: November 13, 2018
    Assignee: Texas Instruments Incorporated
    Inventors: Ariton E. Xhafa, Jianwei Zhou, Arvind Kandhalu Raghu, Ryan Nuzzaci
  • Publication number: 20180317245
    Abstract: A method for communicating in a wireless sensor network (WSN) is described. Using control logic, a first wireless transceiver is caused to transmit a wireless packet to a node in a wireless sensor network. The control logic bases its causing on a transmission coinciding with a break in transmission for a second wireless network, such that the transmission from the first wireless transceiver does not coincide with transmissions made on the second wireless network. Time synchronized channel hopping (TSCH) slot frames for wireless packet transmission in the wireless sensor network are caused to be time offset if the first wireless transceiver is utilizing TSCH. Wake up sequence transmissions for the wireless sensor network are caused to be time offset if the first wireless transceiver is utilizing coordinated sampled listening (CSL).
    Type: Application
    Filed: June 29, 2018
    Publication date: November 1, 2018
    Inventors: Ariton E. Xhafa, Soon-Hyeok Choi, Srinath Hosur, Yanjun Sun
  • Patent number: 10117267
    Abstract: A network includes a parent node and at least one child node that is configured to communicate with the parent node via a wireless network protocol. The parent node includes a broadcast coordinator to transmit a broadcast message from the parent node to the child node at predetermined time intervals according to the wireless network protocol. A scheduler generates a scheduling packet that is communicated in the broadcast message. The scheduling packet includes a data field to instruct each child node to activate and receive data communicated from the parent node in a prescribed time slot following the broadcast message that is defined by the scheduling packet.
    Type: Grant
    Filed: August 3, 2015
    Date of Patent: October 30, 2018
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Arvind K. Raghu, Ariton E. Xhafa, Ramanuja Vedantham, Xiaolin Lu
  • Patent number: 10080054
    Abstract: A system (and method) automatically extends a scheduled recording of a live event past its scheduled end time. The system include includes a content interface to receive program content. The system also includes a user interface to permit a user to schedule a user-selected program content for recording. The user-selected program content has a scheduled start time and a scheduled end time. A program content analyzer may detect a pattern in the user-selected program content. A recording unit may record the user-selected program content and automatically extend the recording past the scheduled end time based on whether the pattern is detected.
    Type: Grant
    Filed: April 16, 2014
    Date of Patent: September 18, 2018
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Ariton E. Xhafa, Anuj Batra
  • Publication number: 20180248860
    Abstract: A network includes a first wireless node that communicates over a wireless network connection. The first wireless node includes a first encryption engine that processes a first initialization data set and a current transmit sequence associated with a current communication to generate a next transmit sequence that is employed to communicate with a second wireless node that derives a next received sequence that corresponds to the next transmit sequence to process a subsequent communication.
    Type: Application
    Filed: September 28, 2017
    Publication date: August 30, 2018
    Inventors: ARITON E. XHAFA, XIAOLIN LU, JIANWEI ZHOU, IL HAN KIM
  • Publication number: 20180242266
    Abstract: A network includes a plurality of parent nodes to communicate in a wireless network via a wireless network protocol. A network node establishes a network connection to one of the parent nodes of the plurality of parent nodes in response to received beacons from the parent nodes. A signal analyzer in the network node processes a received signal strength of the beacons and the number of beacons received over a given time period from each of the parent nodes. The signal analyzer selects the parent node by analyzing the received signal strength for a number of beacons received from each parent node with respect to a number of expected beacons transmitted from each parent node of the plurality of parent nodes over the given time period.
    Type: Application
    Filed: September 13, 2017
    Publication date: August 23, 2018
    Inventors: ARITON E. XHAFA, JIANWEI ZHOU, IL HAN KIM, KAICHIEN TSAI, XIAOLIN LU
  • Patent number: 10015810
    Abstract: A method for communicating in a wireless sensor network (WSN) is described. Using control logic, a first wireless transceiver is caused to transmit a wireless packet to a node in a wireless sensor network. The control logic bases its causing on a transmission coinciding with a break in transmission for a second wireless network, such that the transmission from the first wireless transceiver does not coincide with transmissions made on the second wireless network. Time synchronized channel hopping (TSCH) slot frames for wireless packet transmission in the wireless sensor network are caused to be time offset if the first wireless transceiver is utilizing TSCH. Wake up sequence transmissions for the wireless sensor network are caused to be time offset if the first wireless transceiver is utilizing coordinated sampled listening (CSL).
    Type: Grant
    Filed: October 22, 2015
    Date of Patent: July 3, 2018
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Ariton E. Xhafa, Soon-Hyeok Choi, Srinath Hosur, Yanjun Sun
  • Patent number: 9913214
    Abstract: The white list generator identifies wireless sensor nodes that communicate via a wireless sensor network, to identifies time slots assigned for with each of the identified wireless sensor nodes, and to create and maintain a list of the identified wireless sensor nodes and corresponding time slots. The white list generator provides power control information to power a transceiver for reception of transmissions from each identified wireless sensor node based on the identified time slots corresponding to the identified wireless sensor node provided in the list.
    Type: Grant
    Filed: September 23, 2015
    Date of Patent: March 6, 2018
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Ariton E. Xhafa, Xiaolin Lu, Jianwei Zhou
  • Patent number: 9893837
    Abstract: A wireless device that tailors communications based on power parameters of the device. In one embodiment, a wireless device includes an energy source, a power monitor coupled to the energy source, a wireless transceiver, and a traffic controller coupled to the power monitor and the wireless transceiver. The power monitor is configured to measure a parameter of the energy source. The wireless transceiver is configured to wirelessly communicate via a wireless network. The traffic controller is configured to dynamically provide traffic management based on a prediction of wireless device capabilities using the present state of the energy source.
    Type: Grant
    Filed: October 26, 2015
    Date of Patent: February 13, 2018
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Ariton E. Xhafa, Soon-Hyeok Choi, Yanjun Sun, Leonardo William Estevez
  • Patent number: 9867130
    Abstract: A time slot assignment arrangement for ultralow power devices in a wireless communication network is disclosed. The time slot assigned to ultralow power device wakeup frame is identified as ultralow power timeslot using various indicators. The ultralow power timeslot is assigned as contention based timeslot allowing ultralow power devices in the wireless network to extend the interval for synchronizing with the network overcoming the short synchronization interval requirements of wireless communication network resulting in significant improvement in battery life by preserving the power needed for frequent synchronization with the wireless communication network.
    Type: Grant
    Filed: February 9, 2016
    Date of Patent: January 9, 2018
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Ariton E. Xhafa, Baher Haroun
  • Patent number: 9854516
    Abstract: A device may be coupled to a time slot based communication system and receive a timing beacon packet that is broadcast in a time slot of the communication system at a periodic rate, in which the network uses a time slotted channel hopping protocol of sequential frames each having a plurality of time slots. The device may synchronize its time base to the timing beacon. The device may calculate a sleep time corresponding to a number of time slots until a next time slot that is scheduled for use by the device and then place the device in a sleep mode. The device may be awakened after the sleep time and operate during the next time slot. The device may repeat the process of calculating a sleep time, going into sleep mode, and waking for operation after the sleep time in order to reduce power consumption.
    Type: Grant
    Filed: June 26, 2015
    Date of Patent: December 26, 2017
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Arvind Kandhalu Raghu, Ariton E. Xhafa, Jianwei Zhou, Ramanuja Vedantham, Xiaolin Lu
  • Patent number: 9844033
    Abstract: In accordance with various embodiments, a system and method of distributed transmission resource management in a wireless network is disclosed. The transmission resource allocation is distributed throughout the network to all nodes. In distributed resource management, the resource allocation may be performed by child and/or remote nodes and child and/or remote nodes actively manage transmission resource allocation in the wireless network.
    Type: Grant
    Filed: February 26, 2016
    Date of Patent: December 12, 2017
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Alper S. Akyurek, Ariton E. Xhafa, Jianwei Zhou, Ramanuja Vedantham
  • Publication number: 20170353910
    Abstract: A network includes at least one node to communicate with at least one other node via a wireless network protocol. The node includes a network configuration module to periodically switch a current node function of the node between an intermediate node function and a leaf node function. The switch of the current node function enables automatic reconfiguration of the wireless network based on detected communications between the at least one node and at least one intermediate node or at least one leaf node via the wireless network protocol.
    Type: Application
    Filed: May 10, 2017
    Publication date: December 7, 2017
    Inventors: ARITON E. XHAFA, JIANWEI ZHOU, XIAOLIN LU
  • Publication number: 20170353933
    Abstract: A network includes an intermediate node to communicate with a child node via a wireless network protocol. An intermediate node synchronizer in the intermediate node facilitates time synchronization with its parent node and with the child node. A child node synchronizer in the child node to facilitates time synchronization with the intermediate node. The intermediate node synchronizer exchanges synchronization data with the child node synchronizer to enable the child node to be time synchronized to the intermediate node before the intermediate node is synchronized to its parent node if the intermediate node has not synchronized to its parent node within a predetermined guard time period established for the child node.
    Type: Application
    Filed: May 10, 2017
    Publication date: December 7, 2017
    Inventors: ARITON E. XHAFA, JIANWEI ZHOU, XIAOLIN LU
  • Patent number: 9820294
    Abstract: Embodiments provide a communication device. A device comprises at least two dissimilar network technology subsystems, at least one subsystem of which is lower priority than at least another of the dissimilar subsystems. In some embodiments, a device is able to transmit a silencing frame during a transmission window within a lower priority technology network interval. A transceiver is able to calculate a transmission window to end by at least a duration of time to complete transmission of the silencing frame prior to the beginning of next immediate string of at least one higher priority network technology subsystem interval, and transmit a silencing frame during a lower priority technology network interval during the transmission window.
    Type: Grant
    Filed: July 30, 2015
    Date of Patent: November 14, 2017
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Ariton E. Xhafa, Yanjun Sun, Ramanuja Vedantham
  • Publication number: 20170257138
    Abstract: An optimal frequency hopping sequence (FHS) is proposed. The FHSs can be generated with low computation complexity using the disclosed FHS generation mechanism. The sequence generation according to the embodiments provides a way to generate optimal FHS when channel-number is power of 2 using only 1 sequence. This gives an efficient way to generate optimal FHSs with frequent used channel-numbers for example, channel-numbers 2, 4, 8, 16, and others. These FHSs also provide good interfering probability when channel-number is not a power of 2. This makes TSCH with blacklisting more suitable for IEEE 802.15.4e networks operating in the presence of interference due to decrease in power consumption.
    Type: Application
    Filed: March 1, 2016
    Publication date: September 7, 2017
    Applicant: Texas Instruments Incorporated
    Inventors: Chao-Fang Shih, Ariton E. Xhafa, Jianwei Zhou
  • Publication number: 20170195825
    Abstract: A method of transmitting association requests in a wireless sensor network includes transmitting an association request from a leaf node to an intermediate node. The method further includes transmitting the association request from the. intermediate node during one of either a shared time slot or a dedicated time slot in response to at least one of the timing of dedicated time slots and data collision rates during shared time slots.
    Type: Application
    Filed: March 27, 2017
    Publication date: July 6, 2017
    Inventors: Ariton E. Xhafa, Jianwei Zhou, Arvind Kandhalu Raghu, Ryan Nuzzaci