公开(公告)号：US09274201B2

公开(公告)日：2016-03-01

申请号：US14317730

申请日：2014-06-27

Applicant: Texas Instruments Incorporated

Inventor： Kaichien Tsai ,  Minghua Fu ,  Anand Dabak

IPC: G01R35/00 ,  G01R35/04

CPC classification number: G01R35/005 ,  G01R35/04

Abstract: A system is provided for calibrating a device. The system includes a reference component, a sampling component, a calibration component, a comparing component and a proportional integral component. The reference component provides a reference power signal based on a voltage instruction and a current instruction. The sampling component samples a voltage signal to obtain a sampled voltage value and samples a current signal to obtain a sampled current value. The calibration component generates a calibrated power signal based on the sampled voltage value and the sampled current. The comparing component generates an error signal based on the reference power signal and the calibrated power signal. The proportional integral component and the calibration component are a feedback system that is operable to calibrate the gain of the sampled voltage and the sample current based on the error signal.

Abstract translation: 提供用于校准装置的系统。 该系统包括参考组件，采样组件，校准组件，比较组件和比例积分组件。 参考组件基于电压指令和当前指令提供参考功率信号。 采样分量采样电压信号以获得采样电压值并对电流信号进行采样以获得采样电流值。 校准组件基于采样电压值和采样电流产生校准功率信号。 比较组件基于参考功率信号和校准的功率信号产生误差信号。 比例积分分量和校准分量是可用于基于误差信号校准采样电压和采样电流的增益的反馈系统。

公开(公告)号：US20160028438A1

公开(公告)日：2016-01-28

申请号：US14878178

申请日：2015-10-08

Applicant: Texas Instruments Incorporated

Inventor： Yanjun Sun ,  Gang Xu ,  Soon-Hyeok Choi ,  Bhadra Sandeep ,  Xiaolin Lu ,  Ariton E. Xhafa ,  Minghua Fu ,  Robert W. Liang ,  Susan Yim

IPC: H04B3/54

CPC classification number: H04B3/54 ,  H04B1/123 ,  H04B1/401 ,  H04B3/30 ,  H04B2203/5441 ,  H04B2203/5495

Abstract: A method for implementing a convergence layer. Data is received on a first communication medium by a first transceiver. Data is transmitted on the first communication medium by the first transceiver. A signal is received. Causing, through the convergence layer, by a control logic in response to the signal, the data received and transmitted on the first communication medium as part of a communication session to be received and transmitted instead by a second transceiver on a second communication medium, wherein the convergence layer is configured to conceal from a routing layer at least one of: information related to the first signal, and information related to the data being received and transmitted on the second communication medium.

Abstract translation: 一种实现会聚层的方法。 通过第一收发器在第一通信介质上接收数据。 数据由第一收发器在第一通信介质上传送。 接收到一个信号。 通过汇聚层通过响应于该信号的控制逻辑，将第一通信介质上接收和发送的数据作为要在第二通信介质上被第二收发器接收和发送的通信会话的一部分，其中 汇聚层被配置为从路由层隐藏以下至少一个：与第一信号相关的信息，以及与在第二通信介质上正在接收和发送的数据相关的信息。

公开(公告)号：US20150222327A1

公开(公告)日：2015-08-06

申请号：US14688526

申请日：2015-04-16

Applicant: Texas Instruments Incorporated

Inventor： Yanjun Sun ,  Minghua Fu ,  Xiaolin Lu

IPC: H04B3/56

CPC classification number: H04B3/56 ,  H04B3/54 ,  H04B3/542

Abstract: A power line communication network includes a plurality of PLC devices. The PLC devices communicate packets over conductors of an electrical power distribution system via a plurality of non-interfering channels. Different ones of the PLC devices are configured to communicate packets via different ones of the non-interfering channels.

Abstract translation: 电力线通信网络包括多个PLC设备。 PLC设备经由多个非干扰信道在配电系统的导体上传送分组。 不同的PLC设备被配置为经由不同的非干扰信道来传送分组。

公开(公告)号：US20230042164A1

公开(公告)日：2023-02-09

申请号：US17397636

申请日：2021-08-09

Applicant: Texas Instruments Incorporated

Inventor： Ariton E. Xhafa ,  Ramanuja Vedantham ,  Minghua Fu ,  Jesus Daniel Torres Bardales ,  Mario Mlynek

IPC: H02J7/00 ,  G01R31/382 ,  G01R31/396 ,  H02J50/12

Abstract: Methods, apparatus, systems and articles of manufacture are described for a wireless battery system. An example apparatus includes at least one memory, instructions, and processor circuitry to at least one of instantiate or execute the instructions to identify a first battery node to transmit an uplink command during a first superframe interval, transmit a downlink command to the first battery node and a second battery node, the first battery node to switch in the first superframe interval from a receive state to a transmit state in response to the downlink command, the first battery node to transmit the uplink command in the transmit state, and receive the uplink command from the first battery node in the first superframe interval.

公开(公告)号：US10545182B2

公开(公告)日：2020-01-28

申请号：US15072926

申请日：2016-03-17

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Minghua Fu ,  Kaichien Tsai ,  Prashanth Saidu

IPC: G01R21/133 ,  G01R35/00

Abstract: A system such as an electric meter includes a single-ended analog-to-digital converter which is susceptible to crosstalk. Methods and apparatus are disclosed to calibrate and cancel crosstalk effects. The system determines whether voltage-induced cross-talk is in-phase or out-of-phase with respect to voltage. The system determines a first calibration factor based on minimum and maximum measured current values and voltage. If the cross-talk is in-phase, the system sets a second calibration factor to 0. If the cross-talk is out-of-phase, the system computes the second calibration factor based on a measured current when a power factor angle is set to 90 degrees. Calibration factors may be stored in the multi-channel system. In use, the system measures current and voltage and computes the actual current, voltage and power based on the measured current and voltage by employing a crosstalk cancellation technique using the calibration factors.

公开(公告)号：US09596111B1

公开(公告)日：2017-03-14

申请号：US14849378

申请日：2015-09-09

Applicant: Texas Instruments Incorporated

Inventor： Wenxun Qiu ,  Minghua Fu

IPC: H04B1/38 ,  H04L5/16 ,  H04L27/14 ,  H04L27/16

CPC classification number: H04B1/40

Abstract: Methods and apparatus for multiple channel modem and preamble detection. In an example arrangement, a system includes a plurality of communication nodes coupled to one another via an over the air interface, at least one of the communication nodes including an antenna for transmitting and receiving signals on the over the air interface; a radio transceiver coupled to the antenna for receiving signals and having an output for transmitting signal samples; and a dual core processor coupled to the radio transceiver, the dual core processor comprising a first CPU and a second CPU, the first CPU configured to process signals for a first channel within the signal samples received from the radio transceiver, and the second CPU configured to process signals for a second channel within the signal samples received from the radio transceiver. Methods and additional apparatus are also disclosed.

Abstract translation: 多通道调制解调器和前导码检测的方法和装置。 在示例性布置中，系统包括经由空中接口彼此耦合的多个通信节点，所述通信节点中的至少一个包括用于在空中接口上发送和接收信号的天线; 耦合到所述天线的用于接收信号并且具有用于发送信号样本的输出的无线电收发器; 以及耦合到所述无线电收发器的双核处理器，所述双核处理器包括第一CPU和第二CPU，所述第一CPU被配置为处理从所述无线电收发器接收的信号样本内的第一信道的信号，并且所述第二CPU被配置 以处理从无线电收发机接收的信号样本内的第二信道的信号。 还公开了方法和附加装置。

公开(公告)号：US20170070376A1

公开(公告)日：2017-03-09

申请号：US14849378

申请日：2015-09-09

Applicant: Texas Instruments Incorporated

Inventor： Wenxun Qiu ,  Minghua Fu

IPC: H04L27/14 ,  H04L27/16

CPC classification number: H04B1/40

Abstract: Methods and apparatus for multiple channel modem and preamble detection. In an example arrangement, a system includes a plurality of communication nodes coupled to one another via an over the air interface, at least one of the communication nodes including an antenna for transmitting and receiving signals on the over the air interface; a radio transceiver coupled to the antenna for receiving signals and having an output for transmitting signal samples; and a dual core processor coupled to the radio transceiver, the dual core processor comprising a first CPU and a second CPU, the first CPU configured to process signals for a first channel within the signal samples received from the radio transceiver, and the second CPU configured to process signals for a second channel within the signal samples received from the radio transceiver. Methods and additional apparatus are also disclosed.

Abstract translation: 多通道调制解调器和前导码检测的方法和装置。 在示例性布置中，系统包括经由空中接口彼此耦合的多个通信节点，所述通信节点中的至少一个包括用于在空中接口上发送和接收信号的天线; 耦合到所述天线的用于接收信号并且具有用于发送信号样本的输出的无线电收发器; 以及耦合到所述无线电收发器的双核处理器，所述双核处理器包括第一CPU和第二CPU，所述第一CPU被配置为处理从所述无线电收发器接收的信号样本内的第一信道的信号，并且所述第二CPU被配置 以处理从无线电收发机接收的信号样本内的第二信道的信号。 还公开了方法和附加装置。

公开(公告)号：US20160139853A1

公开(公告)日：2016-05-19

申请号：US14702996

申请日：2015-05-04

Applicant: Texas Instruments Incorporated

Inventor： Wenxun Qiu ,  Minghua Fu

IPC: G06F3/06

CPC classification number: G06F13/28 ,  G06F9/44563 ,  G06F9/4812 ,  G06F9/50 ,  G06F13/102

Abstract: Dynamic sharing of RAM in a software-defined communication system includes storing program code in a flash memory, categorizing parts of the code into groups of transmit categories according to when a part of the code needs to be copied into a section of a RAM and then executed during a first state of a TX state machine and according to how another part of the code can be later fit into the same section and then executed during a second state. Similarly, parts of the code are categorized into groups of receive categories according to when a part of the code needs to be copied into a section of RAM and then executed during a first state of a RX state machine and according to how another part of the code can be later fit into that section and then executed during a second state of the RX state machine, to reduce the amount of RAM without sacrificing speed performance.

Abstract translation: 软件定义的通信系统中的RAM的动态共享包括将程序代码存储在闪速存储器中，根据何时将代码的一部分复制到RAM的一部分然后将代码的一部分分组到发送类别的组中 在TX状态机的第一状态期间执行，并且根据代码的另一部分是否可以稍后适合于同一部分，然后在第二状态期间执行。 类似地，代码的一部分根据何时将代码的一部分需要复制到RAM的一部分中，然后在RX状态机的第一状态期间执行，并且根据如何 代码可以稍后适合该部分，然后在RX状态机的第二状态期间执行，以减少RAM的数量而不牺牲速度性能。

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。

公开(公告)号：US20150349823A1

公开(公告)日：2015-12-03

申请号：US14821264

申请日：2015-08-07

Applicant: Texas Instruments Incorporated

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

IPC: H04B1/12 ,  H04B17/20

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，并且所述检测模块被配置为基于接收到的信号的功率来调整所使用的前导码数据位的数目。