公开(公告)号：US20220150093A1

公开(公告)日：2022-05-12

申请号：US17096045

申请日：2020-11-12

Applicant: Texas Instruments Incorporated

Inventor： Anand Dabak ,  Mahmoud Abdelmoneim Abdelmoneim Elgenedy ,  Timothy Mark Schmidl ,  Swaminathan Sankaran

IPC: H04L25/03 ,  H04B3/32

Abstract: In described examples of a signal equalizer, a complex signal having a first signal component and a second signal component is received from a communication channel. Adaptive equalization of crosstalk between the first signal component and the second signal component is performed using a single complex tap of a feedforward equalizer. A feedforward filter with real only taps converts the channel into a minimum phase channel that has postcursor interference only so that a low complexity decision feedback filter with all complex taps can easily eliminate the postcursor interreference.

公开(公告)号：US20210037527A1

公开(公告)日：2021-02-04

申请号：US17075332

申请日：2020-10-20

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Timothy Mark Schmidl ,  Ariton Xhafa ,  Arvind Khandalu Raghu

IPC: H04W72/04 ,  H04W48/12 ,  H04L5/00 ,  H04W48/16 ,  H04W24/08

Abstract: A method of operating a network on a plurality of frequency hopping channels is disclosed. The method includes transmitting a beacon on a beacon channel different from the frequency hopping channels and receiving a request from a node to join the network in response to the beacon. The method further includes adding the node to the network in response to the step of receiving and communicating with the node on the plurality of frequency hopping channels after the step of adding.

公开(公告)号：US09231732B2

公开(公告)日：2016-01-05

申请号：US14047021

申请日：2013-10-07

Applicant: Texas Instruments, Incorporated

Inventor： Yumin Zhang ,  Wenxun Qiu ,  Timothy Mark Schmidl ,  Anuj Batra

IPC: H03M13/00 ,  H04L1/00 ,  G06F11/07 ,  G06F11/14

CPC classification number: H04L1/0041 ,  G06F11/0709 ,  G06F11/1004 ,  G06F11/1402 ,  H03M13/09 ,  H04L1/0045 ,  H04L1/0053 ,  H04L1/0061 ,  H04L1/0072 ,  H04L1/0075 ,  H04L1/0079 ,  H04L1/0083 ,  H04L69/22

Abstract: A networking device includes a packet header protect generator, a transmitter, a receiver, a decoder and router. The transmitter transmits a data packet to the receiver. The data packet includes a data packet header. The packet header protection generator is arranged to toggle selected bits of a protected portion of the data packet header and generate a data integrity signature. The receiver receives the data packet and generates a received data integrity signature. The decoder computes a locally computed data integrity signature in response to the protected portion of the received data packet header. The locally computed data integrity signature is compared with the received data integrity signature. The router selects a portion of a routing path in response to whether a data packet forwarding destination includes a decoder arranged to compute a locally computed data integrity signature.

Abstract translation: 网络设备包括分组报头保护发生器，发射机，接收机，解码器和路由器。 发射机向接收机发送数据包。 数据分组包括数据分组报头。 分组报头保护发生器被布置为切换数据分组报头的受保护部分的所选位，并生成数据完整性签名。 接收器接收数据包并产生接收到的数据完整性签名。 解码器响应于接收到的数据分组报头的受保护部分来计算本地计算的数据完整性签名。 将本地计算的数据完整性签名与接收到的数据完整性签名进行比较。 响应于数据分组转发目的地是否包括被布置为计算本地计算的数据完整性签名的解码器，路由器选择路由路径的一部分。

公开(公告)号：US20140016675A1

公开(公告)日：2014-01-16

申请号：US13930540

申请日：2013-06-28

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Timothy Mark Schmidl ,  Anand G. Dabak

IPC: H04B1/707

CPC classification number: H04B1/707 ,  H04B1/7085 ,  H04L5/0048 ,  H04L27/22

Abstract: A method of operating a transmitter (FIGS. 3A and 5A) is disclosed. The method includes receiving a sequence of data bits (DATA), wherein each data bit has a respective sequence number. A first data bit of the sequence is spread (508) with a first spreading code (504) determined by the sequence number (502) of the first data bit. A second data bit of the sequence is spread (508) with an inverse of the first spreading code (506) determined by the sequence number (502) of the second data bit. The first and second data bits are modulated (510) and transmitted (516) to a remote receiver.

Abstract translation: 公开了一种操作发射机的方法（图3A和5A）。 该方法包括接收数据位序列（DATA），其中每个数据位具有相应的序列号。 序列的第一数据位由第一数据位的序列号（502）确定的第一扩展码（504）进行扩展（508）。 该序列的第二数据位以由第二数据位的序列号（502）确定的第一扩展码（506）的倒数进行扩展（508）。 第一和第二数据位被调制（510）并传输（516）到远程接收器。

公开(公告)号：US11477788B2

公开(公告)日：2022-10-18

申请号：US17075332

申请日：2020-10-20

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Timothy Mark Schmidl ,  Ariton Xhafa ,  Arvind Khandalu Raghu

IPC: H04W72/04 ,  H04L5/00 ,  H04W84/18 ,  H04W48/12 ,  H04W48/16 ,  H04W24/08

Abstract: A method of operating a network on a plurality of frequency hopping channels is disclosed. The method includes transmitting a beacon on a beacon channel different from the frequency hopping channels and receiving a request from a node to join the network in response to the beacon. The method further includes adding the node to the network in response to the step of receiving and communicating with the node on the plurality of frequency hopping channels after the step of adding.

公开(公告)号：US10813094B2

公开(公告)日：2020-10-20

申请号：US16116259

申请日：2018-08-29

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Timothy Mark Schmidl ,  Ariton Xhafa ,  Arvind Khandalu Raghu

IPC: H04W72/04 ,  H04L5/00 ,  H04W48/12 ,  H04W48/16 ,  H04W24/08 ,  H04W84/18

Abstract: A method of operating a network on a plurality of frequency hopping channels is disclosed. The method includes transmitting a beacon on a beacon channel different from the frequency hopping channels and receiving a request from a node to join the network in response to the beacon. The method further includes adding the node to the network in response to the step of receiving and communicating with the node on the plurality of frequency hopping channels after the step of adding.

公开(公告)号：US09831909B2

公开(公告)日：2017-11-28

申请号：US15066549

申请日：2016-03-10

Applicant: Texas Instruments Incorporated

Inventor： Timothy Mark Schmidl ,  Anand G. Dabak

IPC: H04B1/00 ,  H04B1/707 ,  H04B1/7085 ,  H04L5/00 ,  H04L27/22

CPC classification number: H04B1/707 ,  H04B1/7085 ,  H04L5/0048 ,  H04L27/22

Abstract: A method of operating a transmitter (FIGS. 3A and 5A) is disclosed. The method includes receiving a sequence of data bits (DATA), wherein each data bit has a respective sequence number. A first data bit of the sequence is spread (508) with a first spreading code (504) determined by the sequence number (502) of the first data bit. A second data bit of the sequence is spread (508) with an inverse of the first spreading code (506) determined by the sequence number (502) of the second data bit. The first and second data bits are modulated (510) and transmitted (516) to a remote receiver.

公开(公告)号：US09319095B2

公开(公告)日：2016-04-19

申请号：US14719405

申请日：2015-05-22

Applicant: Texas Instruments Incorporated

Inventor： Timothy Mark Schmidl ,  Anand G. Dabak

IPC: H04B1/00 ,  H04B1/707 ,  H04B1/7085 ,  H04L5/00 ,  H04L27/22

CPC classification number: H04B1/707 ,  H04B1/7085 ,  H04L5/0048 ,  H04L27/22

Abstract: A method of operating a transmitter (FIGS. 3A and 5A) is disclosed. The method includes receiving a sequence of data bits (DATA), wherein each data bit has a respective sequence number. A first data bit of the sequence is spread (508) with a first spreading code (504) determined by the sequence number (502) of the first data bit. A second data bit of the sequence is spread (508) with an inverse of the first spreading code (506) determined by the sequence number (502) of the second data bit. The first and second data bits are modulated (510) and transmitted (516) to a remote receiver.

公开(公告)号：US09136813B2

公开(公告)日：2015-09-15

申请号：US14294879

申请日：2014-06-03

Applicant: Texas Instruments Incorporated

Inventor： Wenxun Qiu ,  Timothy Mark Schmidl ,  Minghua Fu ,  Anuj Batra

IPC: H04B14/06 ,  H03G3/30 ,  H04L27/144 ,  H03M3/04

CPC classification number: H04B1/123 ,  H03G3/3078 ,  H03G3/3089 ,  H03M3/042 ,  H04B7/0811 ,  H04B17/20 ,  H04L27/14

Abstract: A wireless network receiver includes a detection module that uses preamble data in a data frame for signal processing functions and the detection module is configured to adjust the number of preamble data bits that are used based on the power of a received signal.

Abstract translation: 无线网络接收机包括检测模块，该检测模块使用用于信号处理功能的数据帧中的前导码数据，并且检测模块被配置为基于接收信号的功率来调整所使用的前导码数据位的数量。

公开(公告)号：US09077442B2

公开(公告)日：2015-07-07

申请号：US13930540

申请日：2013-06-28

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Timothy Mark Schmidl ,  Anand G. Dabak

IPC: H04B1/00 ,  H04B1/707 ,  H04B1/7085 ,  H04L5/00

CPC classification number: H04B1/707 ,  H04B1/7085 ,  H04L5/0048 ,  H04L27/22

Abstract: A method of operating a transmitter (FIGS. 3A and 5A) is disclosed. The method includes receiving a sequence of data bits (DATA), wherein each data bit has a respective sequence number. A first data bit of the sequence is spread (508) with a first spreading code (504) determined by the sequence number (502) of the first data bit. A second data bit of the sequence is spread (508) with an inverse of the first spreading code (506) determined by the sequence number (502) of the second data bit. The first and second data bits are modulated (510) and transmitted (516) to a remote receiver.

Abstract translation: 公开了一种操作发射机的方法（图3A和5A）。 该方法包括接收数据位序列（DATA），其中每个数据位具有相应的序列号。 序列的第一数据位由第一数据位的序列号（502）确定的第一扩展码（504）进行扩展（508）。 该序列的第二数据位以由第二数据位的序列号（502）确定的第一扩展码（506）的倒数进行扩展（508）。 第一和第二数据位被调制（510）并传输（516）到远程接收器。