中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

21 records (took 0.016 seconds)

    Automatic selection of MAC protocol to support multiple prime PLC standards
    11.
    发明授权
    Automatic selection of MAC protocol to support multiple prime PLC standards 有权

    公开(公告)号：US10686914B2

    公开(公告)日：2020-06-16

    申请号：US14836443

    申请日：2015-08-26

    Applicant: Texas Instruments Incorporated

    Inventor： Wonsoo Kim ,  Mehul Soman ,  Anuj Batra

    IPC: H04L29/06 ,  H04L29/08 ,  H04B3/54

    Abstract: A communication device in a network may receive a stream of frames from the network, in which each frame includes one or more beacon packets. A communication protocol being used by the network may be identified by tracking a preselected field within a sequence of beacon packets, in which the preselected field varies in a first known manner for a first protocol and in a second known manner for a second protocol. The communication device may then join to the network using the identified communication protocol to transmit and receive data.

    POWER LINE COMMUNICATION OPERATING FREQUENCY BAND SELECTION APPARATUS, SYSTEMS AND METHODS
    12.
    发明申请
    POWER LINE COMMUNICATION OPERATING FREQUENCY BAND SELECTION APPARATUS, SYSTEMS AND METHODS 有权
    电力线通信工作频段选择装置，系统和方法

    公开(公告)号：US20160127056A1

    公开(公告)日：2016-05-05

    申请号：US14885715

    申请日：2015-10-16

    Applicant: TEXAS INSTRUMENTS INCORPORATED

    Inventor： Mehul Soman ,  Tarkesh Pande ,  Il Han Kim ,  Anuj Batra ,  Minghua Fu

    IPC: H04B17/336 ,  H04L1/00 ,  H04L27/00 ,  H04L27/26 ,  H04B3/54

    CPC classification number: H04L1/0045 ,  H04B3/54 ,  H04L1/004 ,  H04L27/0002 ,  H04L27/2602

    Abstract: A band of interest is divided into band segments. A scan frame is sent by a transmitter at a transmitting PLC node across each band segment. A receiver at a receiving node scans the band segments, listening for the scan frame. Upon detecting a scan frame, the receiving node measures the signal quality of each OFDM subcarrier modulated with symbols from the scan frame. The subcarrier signal quality values are stored in a table. Upon completion of the scan process, the table contains a signal quality value for each subcarrier within the band of interest. The table is then analyzed to find an operating band consisting of subcarriers with a highest average signal quality or a band that results in greater than a pre-determined minimum signal quality. The invented methods and embodiments may operate periodically to readjust the operating band configuration in the presence of electromagnetic interference including time-variant interference.

    Abstract translation: 感兴趣的乐队分为乐队段。 扫描帧由发射机在每个频段的发送PLC节点发送。 在接收节点处的接收机扫描带段，监听扫描帧。 在检测到扫描帧时，接收节点测量利用来自扫描帧的符号调制的每个OFDM副载波的信号质量。 子载波信号质量值存储在表中。 扫描过程完成后，该表包含感兴趣的频带内每个子载波的信号质量值。 然后分析表以找到由具有最高平均信号质量的子载波组成的操作频带或导致大于预定的最小信号质量的频带。 本发明的方法和实施例可以周期性地操作以在存在包括时变干扰的电磁干扰的情况下重新调整工作频带配置。

    SELECTIVE MULTIPLE-MEDIA ACCESS CONTROL
    13.
    发明申请
    SELECTIVE MULTIPLE-MEDIA ACCESS CONTROL 审中-公开
    选择性多媒体访问控制

    公开(公告)号：US20150106519A1

    公开(公告)日：2015-04-16

    申请号：US14516168

    申请日：2014-10-16

    Applicant: Texas Instruments Incorporated

    Inventor： Xiaolin Lu ,  Robert Liang ,  Mehul Soman ,  Kumaran Vijayasankar ,  Ramanuja Vedantham

    IPC: H04L29/12 ,  H04L29/08

    CPC classification number: H04L67/28 ,  H04W4/20 ,  H04W80/02

    Abstract: A communication system and method includes receiving payload data of first and second media access control (MAC) frames. A MAC-level protocol is identified in response to the indication of the selected network for each of the first and second MAC frames. The payload data of the first and second MAC frames is transmitted and/or received across respective networks transmitted using, for example, power line communications signals over a common communications medium. The common communications medium is operable for carrying signals of a plurality of networks.

    Abstract translation: 通信系统和方法包括：接收第一和第二媒体访问控制（MAC）帧的有效载荷数据。 响应于所选择的网络对于第一和第二MAC帧中的每一个的指示来识别MAC级协议。 在通过公共通信介质使用例如电力线通信信号发送的各个网络上发送和/或接收第一和第二MAC帧的净荷数据。 公共通信介质可操作用于承载多个网络的信号。

    Enhanced network security using packet fragments
    14.
    发明授权
    Enhanced network security using packet fragments 有权

    公开(公告)号：US11240216B2

    公开(公告)日：2022-02-01

    申请号：US16722371

    申请日：2019-12-20

    Applicant: TEXAS INSTRUMENTS INCORPORATED

    Inventor： Kumaran Vijayasankar ,  Mehul Soman ,  Arvind Kandhalu Raghu ,  Il Han Kim

    IPC: H04L29/06 ,  H04L29/08 ,  H04W12/04 ,  H04W12/06 ,  H04W4/70 ,  H04W12/033

    Abstract: A network system comprising a first network element and a second network element. The first network element is programmed to provide the step of first, communicating to the second network element a plurality of configuration parameter sets. Each configuration parameter set corresponds to a respective frame fragment and comprises a parameter value that differs in value from the parameter value in another configuration parameter set in the plurality of configuration parameter sets. The first network element also is programmed to provide the step of second, communicating a frame, to the second network element, in a plurality of frame fragments, wherein each frame fragment in the plurality of frame fragments is communicated according to a respective parameter value in the plurality of configuration parameter sets.

    SELECTIVE MULTIPLE-MEDIA ACCESS CONTROL
    15.
    发明申请
    SELECTIVE MULTIPLE-MEDIA ACCESS CONTROL 有权

    公开(公告)号：US20210274593A1

    公开(公告)日：2021-09-02

    申请号：US17322987

    申请日：2021-05-18

    Applicant: TEXAS INSTRUMENTS INCORPORATED

    Inventor： Xiaolin Lu ,  Robert Liang ,  Mehul Soman ,  Kumaran Vijayasankar ,  Ramanuja Vedantham

    IPC: H04W80/02

    Abstract: Disclosed embodiments include a network device having a split network stack that includes a physical (PHY) layer associated with first and second media access control (MAC) protocol sublayers, a processing device, and memory storing instructions that, when executed by the processing device, cause the processing device to select a route through the split network stack that includes one of the first and second MAC protocol sublayers but not the other one of the first and second MAC protocol sublayers.

    Enhanced network security using packet fragments
    17.
    发明授权
    Enhanced network security using packet fragments 有权

    公开(公告)号：US10608998B2

    公开(公告)日：2020-03-31

    申请号：US15143460

    申请日：2016-04-29

    Applicant: Texas Instruments Incorporated

    Inventor： Kumaran Vijayasankar ,  Mehul Soman ,  Arvind Kandhalu Raghu ,  Il Han Kim

    IPC: H04L29/06 ,  H04L29/08

    Abstract: A network system comprising a first network element and a second network element. The first network element is programmed to provide the step of first, communicating to the second network element a plurality of configuration parameter sets. Each configuration parameter set corresponds to a respective frame fragment and comprises a parameter value that differs in value from the parameter value in another configuration parameter set in the plurality of configuration parameter sets. The first network element also is programmed to provide the step of second, communicating a frame, to the second network element, in a plurality of frame fragments, wherein each frame fragment in the plurality of frame fragments is communicated according to a respective parameter value in the plurality of configuration parameter sets.

    Power line communication operating frequency band selection apparatus, systems and methods
    19.
    发明授权
    Power line communication operating frequency band selection apparatus, systems and methods 有权

    公开(公告)号：US09692554B2

    公开(公告)日：2017-06-27

    申请号：US14885715

    申请日：2015-10-16

    Applicant: TEXAS INSTRUMENTS INCORPORATED

    Inventor： Mehul Soman ,  Tarkesh Pande ,  Il Han Kim ,  Anuj Batra ,  Minghua Fu

    IPC: H04L1/00 ,  H04B3/54 ,  H04L27/00 ,  H04L27/26

    CPC classification number: H04L1/0045 ,  H04B3/54 ,  H04L1/004 ,  H04L27/0002 ,  H04L27/2602

    Abstract: A band of interest is divided into band segments. A scan frame is sent by a transmitter at a transmitting PLC node across each band segment. A receiver at a receiving node scans the band segments, listening for the scan frame. Upon detecting a scan frame, the receiving node measures the signal quality of each OFDM subcarrier modulated with symbols from the scan frame. The subcarrier signal quality values are stored in a table. Upon completion of the scan process, the table contains a signal quality value for each subcarrier within the band of interest. The table is then analyzed to find an operating band consisting of subcarriers with a highest average signal quality or a band that results in greater than a pre-determined minimum signal quality. The invented methods and embodiments may operate periodically to readjust the operating band configuration in the presence of electromagnetic interference including time-variant interference.

Patent Agency Ranking