公开(公告)号：US10080054B2

公开(公告)日：2018-09-18

申请号：US14254535

申请日：2014-04-16

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Ariton E. Xhafa ,  Anuj Batra

IPC: H04N21/458 ,  H04N21/44 ,  H04N21/439 ,  H04N21/4147 ,  H04N21/472 ,  H04N21/433 ,  H04N21/2187

CPC classification number: H04N21/4583 ,  H04N21/2187 ,  H04N21/4147 ,  H04N21/4334 ,  H04N21/4394 ,  H04N21/44008 ,  H04N21/47217

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.

公开(公告)号：US10015810B2

公开(公告)日：2018-07-03

申请号：US14920625

申请日：2015-10-22

Applicant: Texas Instruments Incorporated

Inventor： Ariton E. Xhafa ,  Soon-Hyeok Choi ,  Srinath Hosur ,  Yanjun Sun

IPC: H04J1/16 ,  H04W72/12 ,  H04W84/18 ,  H04W4/00 ,  H04W88/06 ,  H04W84/12

CPC classification number: H04W72/1215 ,  H04W4/80 ,  H04W84/12 ,  H04W84/18 ,  H04W88/06

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).

公开(公告)号：US09893837B2

公开(公告)日：2018-02-13

申请号：US14923050

申请日：2015-10-26

Applicant: Texas Instruments Incorporated

Inventor： Ariton E. Xhafa ,  Soon-Hyeok Choi ,  Yanjun Sun ,  Leonardo William Estevez

IPC: H04L12/28 ,  H04L1/00 ,  H04W24/08

CPC classification number: H04L1/0007 ,  H04W24/08 ,  Y02D70/00

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.

公开(公告)号：US09854516B2

公开(公告)日：2017-12-26

申请号：US14751602

申请日：2015-06-26

Applicant: Texas Instruments Incorporated

Inventor： Arvind Kandhalu Raghu ,  Ariton E. Xhafa ,  Jianwei Zhou ,  Ramanuja Vedantham ,  Xiaolin Lu

IPC: H04W52/02 ,  H04L5/00 ,  H04W56/00 ,  H04W48/00 ,  H04W72/12 ,  H04W84/10 ,  H04W84/18

CPC classification number: H04W52/0209 ,  H04L5/0048 ,  H04W48/00 ,  H04W56/001 ,  H04W72/12 ,  H04W84/10 ,  H04W84/18 ,  Y02D70/00 ,  Y02D70/142 ,  Y02D70/144

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.

公开(公告)号：US09844033B2

公开(公告)日：2017-12-12

申请号：US15054508

申请日：2016-02-26

Applicant: Texas Instruments Incorporated

Inventor： Alper S. Akyurek ,  Ariton E. Xhafa ,  Jianwei Zhou ,  Ramanuja Vedantham

IPC: H04B5/00 ,  H04W72/04

CPC classification number: H04W72/04 ,  H04W72/0406

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.

公开(公告)号：US20170257138A1

公开(公告)日：2017-09-07

申请号：US15057155

申请日：2016-03-01

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Chao-Fang Shih ,  Ariton E. Xhafa ,  Jianwei Zhou

IPC: H04B1/713

CPC classification number: H04B1/7143

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.

公开(公告)号：US20170195825A1

公开(公告)日：2017-07-06

申请号：US15458876

申请日：2017-03-27

Applicant: Texas Instruments Incorporated

Inventor： Ariton E. Xhafa ,  Jianwei Zhou ,  Arvind Kandhalu Raghu ,  Ryan Nuzzaci

IPC: H04W4/00 ,  H04L12/44 ,  H04L12/24 ,  H04W72/04 ,  H04W48/16

CPC classification number: H04W4/70 ,  H04L12/44 ,  H04L41/0886 ,  H04W48/16 ,  H04W72/0446 ,  H04W74/02 ,  H04W84/18

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.

公开(公告)号：US09681333B2

公开(公告)日：2017-06-13

申请号：US14860154

申请日：2015-09-21

Applicant: Texas Instruments Incorporated

Inventor： Ariton E. Xhafa ,  Yanjun Sun ,  Ramanuja Vedantham

IPC: H04J3/24 ,  H04L12/43 ,  H04W28/06 ,  H04L1/18 ,  H04W84/12 ,  H04W88/06 ,  H04W28/04 ,  H04W84/18

CPC classification number: H04W28/065 ,  H04L1/1854 ,  H04W28/04 ,  H04W84/12 ,  H04W84/18 ,  H04W88/06

Abstract: A wireless combination device is coupled to an antenna for communicating via a first wireless network. A second wireless transceiver configured for communication via said second wireless network. A packet aggregator is coupled to the first wireless transceiver configures a frame aggregated packet for at least a portion of activities on the first wireless network. The frame aggregated packet includes a plurality of data packets and a dummy packet or spoofing so that said frame aggregated packet is extended in time or indicates an extension sufficient to overlap a Tx time interval or Rx time interval for communications occurring over a second wireless network. The first wireless network and said second wireless network are overlapping networks.

公开(公告)号：US20170063685A1

公开(公告)日：2017-03-02

申请号：US15249716

申请日：2016-08-29

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Ramanuja Vedantham ,  Kumaran Vijayasankar ,  Arvind K. Raghu ,  Ariton E. Xhafa

IPC: H04L12/741

CPC classification number: H04L45/48 ,  H04L45/02 ,  H04L61/2007

Abstract: This invention is an improvement of a Hierarchical Do-Dag based RPL (H-DOC) network configuration where the network address of each node corresponds to its location within the hierarchical network. Network addresses are initialized hierarchically. Candidate patent nodes signal availability. Candidate child nodes respond to a selected candidate parent node with a temporary address. The selected candidate parent node acknowledges selection and communicates a hierarchical address for the child node in a transmission to the temporary address. The child node changes its address to the hierarchical address from the parent node. When a node switches parent nodes, it signals the old parent node to deallocate it as a child node, and then signals a selected candidate parent node with a temporary address.

Abstract translation: 本发明是基于分层Do-Dag的RPL（H-DOC）网络配置的改进，其中每个节点的网络地址对应于其在分层网络内的位置。 网络地址被分层初始化。 候选专利节点信号可用性。 候选子节点使用临时地址响应所选择的候选父节点。 选择的候选父节点确认选择，并将传输中的子节点的分层地址传送到临时地址。 子节点将其地址从父节点更改为分层地址。 当节点切换父节点时，它向旧的父节点发信号，将其解除分配为子节点，然后用临时地址发送选定的候选父节点。

公开(公告)号：US20160072548A1

公开(公告)日：2016-03-10

申请号：US14813093

申请日：2015-07-29

Applicant: Texas Instruments Incorporated

Inventor： Chao-Fang Shih ,  Ariton E. Xhafa ,  Jianwei Zhou

IPC: H04B1/7143 ,  H04B1/715

CPC classification number: H04B1/7143 ,  H04B1/715 ,  H04B2001/7154

Abstract: A device operated in a network using a channel hopping communication protocol may select a channel for each transmission by first generating and storing a sequence of pseudo-random index numbers. A list of good channels is selected from a plurality of channels. For each channel hop, one of the good channels is selected from the list of good channels for use by a transceiver in the device by using an index number selected from the sequence of pseudo-random index numbers. The list of good channels may be revised periodically and channels may be selected from the list of good channels for use by the transceiver without revising the sequence of pseudo-random index numbers.

Abstract translation: 使用信道跳频通信协议在网络中操作的设备可以通过首先生成并存储伪随机索引序列序列来为每个传输选择一个信道。 从多个通道中选择好的频道列表。 对于每个信道跳，通过使用从伪随机索引序列序列中选择的索引号，从设备中的收发器使用的良好信道列表中选择一个良好信道。 可以定期修改良好频道的列表，并且可以从收发机使用的良好频道列表中选择频道，而不修改伪随机索引号序列。