公开(公告)号：US08645062B2

公开(公告)日：2014-02-04

申请号：US13745186

申请日：2013-01-18

Applicant: Texas Instruments Incorporated

Inventor： June Chul Roh ,  Deric Wayne Waters ,  Srinath Hosur ,  Goutam Dutta

IPC: G01C21/16

CPC classification number: G01S19/47 ,  G01C21/165 ,  G01C21/28 ,  G01C22/006 ,  G06F17/16

Abstract: Embodiments of the invention provide a step detection. An accelerometer measurement in the form of a multi-dimensional acceleration vector is obtained. The magnitude of the accelerometer measurement is filtered using a low pass filter. A threshold for a down-crossing is provided as is a threshold for an up-crossing. A step detection is triggered if the magnitude of the accelerometer measurement is greater than or equal to the threshold for an up-crossing.

Abstract translation: 本发明的实施例提供了步骤检测。 获得多维加速度矢量形式的加速度计测量。 使用低通滤波器对加速度计测量的幅度进行滤波。 提供了一个下划线的阈值，就像上一交叉口的阈值一样。 如果加速度计测量的幅度大于或等于上行阈值，则触发步进检测。

公开(公告)号：US20130093496A1

公开(公告)日：2013-04-18

申请号：US13680549

申请日：2012-11-19

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Deric Wayne Waters ,  Karthik Ramasubramanian ,  Arun Raghupathy

IPC: H04B1/16

CPC classification number: H04B1/1615 ,  G01S19/34

Abstract: An electronic circuit includes a receiver circuit (BSP) operable to perform coherent summations having a coherent summations time interval, and a power control circuit (2130) coupled to said receiver circuit (BSP) and operable to impress a power controlling duty cycle (TON, TOFF) on the receiver circuit (BSP) inside the coherent summations time interval. Other circuits, devices, systems, methods of operation and processes of manufacture are also disclosed.

公开(公告)号：US20250021508A1

公开(公告)日：2025-01-16

申请号：US18896431

申请日：2024-09-25

Applicant: Texas Instruments Incorporated

Inventor： Deric Wayne Waters ,  Xiaoxi Bruce Zhang

IPC: G06F13/40 ,  G06F13/42

Abstract: A system includes a device including a first register configured to store a first address, a second register configured to store a first device identifier, a third register configured to store a value, the value adapted to be a logical AND of the first device identifier and a second device identifier and a circuit coupled to the first register, the second register, and the third register. The circuit is configured to determine the second device identifier based on the first device identifier of the second register and the value of the third register, responsive to determining the second device identifier, the first circuit compares the first device identifier to the second device identifier, after comparing the first device identifier to the second device identifier, the first circuit determines a second address and after determining the second address, the first circuit sets the first register to store the second address.

公开(公告)号：US11515797B2

公开(公告)日：2022-11-29

申请号：US17214181

申请日：2021-03-26

Applicant: Texas Instruments Incorporated

Inventor： Deric Wayne Waters

IPC: H02M3/335 ,  G06F1/26 ,  H02J13/00 ,  H02J7/00 ,  H02M1/00

Abstract: A universal serial bus (USB) source device adapted to be coupled to a USB sink device via a USB cable, the USB source device including: a voltage bus (VBUS) terminal adapted to be coupled to a VBUS conductor of the USB cable; a configuration channel (CC) terminal adapted to be coupled to a CC conductor of the USB cable; a VOUT node coupled to the VBUS terminal and adapted to be coupled to a voltage supply; a controller circuit coupled to the VBUS terminal, the CC terminal and the VOUT node; a load circuit coupled to a discharge signal connection of the controller and to the VOUT node; and a resistor divider coupled to the VOUT node and the controller and adapted to be coupled to the voltage supply.

公开(公告)号：US20220035436A1

公开(公告)日：2022-02-03

申请号：US17505522

申请日：2021-10-19

Applicant: Texas Instruments Incorporated

Inventor： Deric Wayne Waters ,  Gregory Wallis Collins

IPC: G06F1/3287 ,  G06F13/42 ,  G06F13/40 ,  G06F13/38 ,  G06F1/26

Abstract: Described examples include USB port controllers with a control circuit configured to switch from a normal first power mode to a second power mode for reduced power consumption in response a command from a port manager circuit, and to switch from the second power mode to the first power mode in response to detected activity on a communications connection, or a detected connection of a USB device to a USB port connector. After switching back to the first power mode in response to detected communications activity, the control circuit automatically switches operation of the USB port controller back to the second power mode unless a communications transaction addressed to the USB port controller is received within a non-zero certain time after switching from the second power mode to the first power mode.

公开(公告)号：US11181966B2

公开(公告)日：2021-11-23

申请号：US15346865

申请日：2016-11-09

Applicant: Texas Instruments Incorporated

Inventor： Deric Wayne Waters ,  Gregory Wallis Collins

IPC: G06F1/3287 ,  G06F13/42 ,  G06F13/40 ,  G06F13/38 ,  G06F1/26

Abstract: Described examples include USB port controllers with a control circuit configured to switch from a normal first power mode to a second power mode for reduced power consumption in response a command from a port manager circuit, and to switch from the second power mode to the first power mode in response to detected activity on a communications connection, or a detected connection of a USB device to a USB port connector. After switching back to the first power mode in response to detected communications activity, the control circuit automatically switches operation of the USB port controller back to the second power mode unless a communications transaction addressed to the USB port controller is received within a non-zero certain time after switching from the second power mode to the first power mode.

公开(公告)号：US20210218338A1

公开(公告)日：2021-07-15

申请号：US17214181

申请日：2021-03-26

Applicant: Texas Instruments Incorporated

Inventor： Deric Wayne Waters

IPC: H02M3/335 ,  G06F1/26

Abstract: A universal serial bus (USB) source device adapted to be coupled to a USB sink device via a USB cable, the USB source device including: a voltage bus (VBUS) terminal adapted to be coupled to a VBUS conductor of the USB cable; a configuration channel (CC) terminal adapted to be coupled to a CC conductor of the USB cable; a VOUT node coupled to the VBUS terminal and adapted to be coupled to a voltage supply; a controller circuit coupled to the VBUS terminal, the CC terminal and the VOUT node; a load circuit coupled to a discharge signal connection of the controller and to the VOUT node; and a resistor divider coupled to the VOUT node and the controller and adapted to be coupled to the voltage supply.

公开(公告)号：US20200067346A1

公开(公告)日：2020-02-27

申请号：US16669114

申请日：2019-10-30

Applicant: Texas Instruments Incorporated

Inventor： Deric Wayne Waters ,  Robert Mason Hanrahan

IPC: H02J13/00 ,  G05B15/02 ,  H02J1/00

Abstract: A power provider circuit includes a plurality of power delivery controllers, a single stage power supply, and control circuitry. Each of the plurality of power delivery controllers is configured to provide power to a detachable device. The single stage power supply is configured to generate the power for provision to the detachable devices, and to provide the power at a plurality of selectable voltages. The control circuitry configured to select a given voltage of the plurality of selectable voltages to be made available via all of the power delivery controllers based on power utilization capabilities and other optional status indications reported by the detachable devices.

公开(公告)号：US10476394B2

公开(公告)日：2019-11-12

申请号：US15392047

申请日：2016-12-28

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Deric Wayne Waters

IPC: H02M3/335 ,  H02J13/00 ,  G06F1/26 ,  H02M1/00 ,  H02J7/00

Abstract: A system may include a power supply configurable to generate any of a plurality of output voltages on a power supply output node. The system also may include a voltage auto-detection power distribution (PD) controller coupled to the power supply. The voltage auto-detection PD controller is configured to monitor an input signal for detection of presence of a device coupled to the system via a cable and assert combinations of a plurality of control signals. For each combination of control signals, the voltage auto-detection PD controller measures a value of an output voltage from the power supply, stores the measured value, and generates a plurality of packets for transmission to the device. Each packet contains a parameter indicative of a measured output voltage.

公开(公告)号：US10423205B2

公开(公告)日：2019-09-24

申请号：US15205806

申请日：2016-07-08

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Deric Wayne Waters

IPC: G06F1/00 ,  G06F1/26 ,  G06F13/42

Abstract: A circuit includes a controller to communicate with a sink device and communicate a plurality of power sources that are available to the sink device. A plurality of switch devices switch power from one of the plurality of power sources to the sink device in response to a control signal from the controller. A policy engine in the controller defines policies for the operation of the controller during different communications phases between the controller and the sink device.