公开(公告)号：WO2021217110A1

公开(公告)日：2021-10-28

申请号：PCT/US2021/029045

申请日：2021-04-26

Applicant: TEXAS INSTRUMENTS INCORPORATED ,  TEXAS INSTRUMENTS JAPAN LIMITED

Inventor： ALPERT, Yaron ,  BEN-SHACHAR, Matan ,  SHANI, Oren Aharon

IPC: H04W52/02 ,  H04W12/71

Abstract: Adevice (e.g., an IoT device) includes a first radio (126), and a memory device (227) accessible to the first radio (126). The memory device is configured to store a fingerprinting feature (229) for a specific transmitter device. A second radio (122) and a processor (210) are also included. The processor (210) is coupled to the first and second radios (126, 122). The first radio (126) is configured to extract a fingerprinting feature of a first received wireless signal, determine that the extracted feature matches the fingerprinting feature stored in the storage device, and responsive to the determination that the extracted feature matches the feature stored in the storage device (227), cause the second radio (122) to transition from a lower power state to a higher power state of operation and continue to receive the incoming signal.

公开(公告)号：WO2022086890A1

公开(公告)日：2022-04-28

申请号：PCT/US2021/055501

申请日：2021-10-19

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： ALPERT, Yaron ,  BEN-SHACHAR, Matan ,  DABAK, Anand Ganesh

IPC: H04L1/00 ,  H04B7/02

Abstract: A user client device with a single receive (RX) chain, a first antenna and a second antenna, and a processor that causes the user client device to couple the single RX chain to the first antenna to receive a first data packet on a first channel (406) and determine a first channel state information (CSI) tile of the first channel based on one or more fields in the first data packet (406), decouple the first antenna from the single RX chain and couple the second antenna to the single RX chain to continue receiving the first data packet on a second channel (408), determine a second CSI tile of the second channel based on one or more of a portion of the first plurality of fields (408), aggregate the first CSI tile with the second CSI tile (410), and generate a CSI matrix based on aggregating the first CSI tile with the second CSI tile (410).

公开(公告)号：WO2014039980A1

公开(公告)日：2014-03-13

申请号：PCT/US2013/058781

申请日：2013-09-09

Applicant: TEXAS INSTRUMENTS INCORPORATED ,  TEXAS INSTRUMENTS JAPAN LIMITED

Inventor： DARWHEKAR, Yogesh ,  SINGH, Vikas ,  ISSAC, Ronen ,  BEN-SHACHAR, Matan

IPC: H04B5/02

CPC classification number: H04B5/0025 ,  G06K19/0701 ,  G06K19/0715 ,  G06K19/0723

Abstract: Several circuits and methods for field-based communication are provided. In an embodiment, a field-based communication circuit (200) includes a receiver circuit (202), a detection circuit (204) and a control circuit (206). The receiver circuit is configured to receive a field input signal from a field source (208). The detection circuit includes a voltage detection circuit (210) and a current detection circuit (212) configured to detect a voltage signal and a current signal respectively associated with the field input signal. The control circuit is configured to trigger a selection of one of the voltage detection circuit and the current detection circuit based on a detection of a signal magnitude of one of the voltage signal and the current signal relative to at least a first predetermined threshold level, wherein the selection of one of the voltage detection circuit and the current detection circuit facilitates a demodulation at a demodulation circuit (222) of one of the voltage signal and the current signal.

Abstract translation: 提供了几种用于现场通信的电路和方法。 在一个实施例中，基于场的通信电路（200）包括接收机电路（202），检测电路（204）和控制电路（206）。 接收器电路被配置为从场源（208）接收场输入信号。 检测电路包括电压检测电路（210）和电流检测电路（212），其被配置为检测分别与场输入信号相关联的电压信号和电流信号。 控制电路被配置为基于相对于至少第一预定阈值电平检测电压信号和电流信号之一的信号幅度来触发电压检测电路和电流检测电路之一的选择，其中， 电压检测电路和电流检测电路之一的选择便于在电压信号和电流信号之一的解调电路（222）进行解调。