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11.发明申请公开(公告)号：US20150017939A1
公开(公告)日：2015-01-15
申请号：US14506001
申请日：2014-10-03
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Deric Wayne Waters , Sandeep Rao , Karthik Ramasubramanian
IPC: H04B17/00
Abstract: Embodiments of the invention provide a method for detecting false peaks in a Global Navigation Satellite System (GNSS) having a power control circuit, a measurement engine, and position engine. An estimated pseudorange is filtered over time. A false peak is declared if the filtered pseudorange error is greater than a threshold.
Abstract translation: 本发明的实施例提供了一种用于在具有功率控制电路，测量引擎和位置引擎的全球导航卫星系统（GNSS）中检测假峰值的方法。 估计伪距随时间过滤。 如果滤波的伪距误差大于阈值，则声明假峰。
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公开(公告)号：US08918549B2
公开(公告)日：2014-12-23
申请号：US13969170
申请日：2013-08-16
Applicant: Texas Instruments Incorporated
Inventor： Deric Wayne Waters
CPC classification number: G06F13/385 , G06F1/22 , G06F1/266 , G06F13/4282 , Y02D10/14 , Y02D10/151
Abstract: A system and method for detecting a USB cable-type. A USB PD device configured at a near end of a USB cable is configured to (i) receive and process a signal from a device at a far end of the USB cable to determine a power rating of the USB cable and (ii) adjustably establish power delivered by the first device to the USB cable as a function of the determined USB cable power rating.
Abstract translation: 一种用于检测USB电缆类型的系统和方法。 配置在USB电缆近端的USB PD设备配置为（i）从USB电缆远端的设备接收和处理信号，以确定USB电缆的额定功率，以及（ii）可调整地建立 根据确定的USB电缆额定功率，由第一个设备传送到USB电缆的功率。
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公开(公告)号：US12003237B2
公开(公告)日：2024-06-04
申请号：US17587713
申请日：2022-01-28
Applicant: Texas Instruments Incorporated
Inventor： Deric Wayne Waters
IPC: H02J7/00 , H03K19/003
CPC classification number: H03K19/00346
Abstract: An example apparatus includes: a switch having a first current terminal, a second current terminal and a control terminal, the first current terminal adapted to be coupled to a first capacitor, the second current terminal adapted to be coupled to a second capacitor; a comparator having a comparator input and a comparator output, the comparator input coupled to a configuration terminal; a deglitch circuit having a deglitch input and a deglitch output, the deglitch input coupled to the comparator output, the deglitch circuit having a deglitch duration between a first duration and a second duration; and a universal serial bus (USB) controller having a controller output and a controller input, the controller output coupled to the control terminal, the controller input coupled to the deglitch output.
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公开(公告)号：US11770118B2
公开(公告)日：2023-09-26
申请号：US17093677
申请日：2020-11-10
Applicant: Texas Instruments Incorporated
Inventor： Deric Wayne Waters , Roy Alan Hastings
IPC: G06F1/3296 , H03H7/06 , G06F1/28 , G06F1/3206 , H02J7/00 , H03K5/24
CPC classification number: H03K5/24 , G06F1/28 , G06F1/3206 , G06F1/3296 , H03H7/06 , H02J7/00 , H02J7/00034
Abstract: In one embodiment, a system includes a power delivery (“PD”) controller in a USB Type-C system that includes a configuration channel (“CC”), PD preamble detector, and a power-usage circuit. The PD controller includes a CC input that receives a PD message. The PD preamble detector is configured to detect a PD message preamble based in part upon a power of a filtered PD message and communicates a wake-up signal to the power-usage circuit in response to detecting a PD message preamble. The power-usage circuit is configured to exit a low-power mode in response to receiving the wake-up signal.
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公开(公告)号：US20230244624A1
公开(公告)日：2023-08-03
申请号：US17587695
申请日：2022-01-28
Applicant: Texas Instruments Incorporated
Inventor： Deric Wayne Waters , Xiaoxi Bruce Zhang
CPC classification number: G06F13/4068 , G06F13/4282 , G06F2213/0016
Abstract: An example system includes: a device coupled to a data line, the device configured to: send a first command on the data line, the first command including a first address; after sending the first command, read a first value on the data line, the first value including data from a first target device and a second target device; responsive to reading the first value, send a second command including the first address and data representing the first value on the data line; send a third command on the data line, the third command including the first address; after sending the third command, read a second value on the data line, the second value including data from the first target device and the second target device; responsive to reading the second value, send a fourth command on the data line, the fourth command including the first address.
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Patent Agency Ranking
公开(公告)号：US11239694B2
公开(公告)日：2022-02-01
申请号：US16669114
申请日：2019-10-30
Applicant: Texas Instruments Incorporated
Inventor： Deric Wayne Waters , Robert Mason Hanrahan
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.
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公开(公告)号：US10240931B2
公开(公告)日：2019-03-26
申请号：US15593476
申请日：2017-05-12
Applicant: Texas Instruments Incorporated
Inventor： Sandeep Rao , Deric Wayne Waters
Abstract: A disclosed method includes computing, for each of a plurality of values of at least one type of error parameter, a distance traveled for each of a plurality of directions of travel. The method includes selecting, from the plurality of values of the at least one type of error parameter, a value that provides a greatest distance traveled for any of the plurality of directions of travel relative to the unselected ones of the plurality of values. The method further includes applying the selected value of the at least one type of error parameter to gyroscopic sensor data, and then determining navigation information based on the gyroscopic sensor data with the selected value of the at least one type of error parameter applied.
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18.发明授权公开(公告)号：US09955300B2
公开(公告)日：2018-04-24
申请号：US13901777
申请日：2013-05-24
Applicant: TEXAS INSTRUMENTS INCORPORATED
Abstract: A method for incorporating invisible APs for RSSI based indoor positioning is presented. An empirical estimate of the probability of invisible APs versus distance is computed. An estimated position of the receiver can be computed using any statistical estimator based on the probability. In one embodiment, an estimate of the probability is computed by combining the probability over a set of visible APs and the probability over a set of invisible APs with the probability of individual contribution. In one embodiment a dynamic procedure is used to update the invisible probability that is computed using an AP dictionary built on the fly as new APs are detected. Incorporating invisible APs for estimating user position from the RSSI measurements for indoor positioning provides a better positioning accuracy as compared to typical estimators which rely only on the visible APs.
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公开(公告)号：US09891326B2
公开(公告)日：2018-02-13
申请号：US14667348
申请日：2015-03-24
Applicant: Texas Instruments Incorporated
Inventor： Deric Wayne Waters , Jayawardan Janardhanan
CPC classification number: G01S19/48 , G01S5/0252 , G01S5/0263 , G01S5/14 , G01S19/03 , G01S19/46
Abstract: A positioning server has a positioning database. The positioning database is configured to store information relating wireless local area network (WLAN) access point (AP) signal measurements to points of a geographic positioning grid. motion information provided by dead-reckoning systems of a plurality of wireless devices and reference location information provided by at least one of a satellite positioning system and a wireless local area network (WLAN) positioning system of each wireless device is also stored. WLAN access point (AP) signal measurements acquired by each wireless device in correspondence with the motion information is stored as are non-causally determine positions of the wireless devices based on the motion information and reference locations. Positioning server is also configured to generate a geographic positioning grid that relates the AP signal measurements to points of the positioning grid based on the determined positions.
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公开(公告)号：US09874641B2
公开(公告)日：2018-01-23
申请号：US14667280
申请日：2015-03-24
Applicant: Texas Instruments Incorporated
Inventor： Deric Wayne Waters , Jayawardan Janardhanan
CPC classification number: G01S19/48 , G01S5/0252 , G01S5/0263 , G01S5/14 , G01S19/03 , G01S19/46
Abstract: A system for crowd-sourced fingerprinting has a positioning database and a mobile wireless device. The positioning database is configured to store information relating wireless local area network access point (AP) signal measurements to points of a geographic positioning grid. The mobile wireless device has a satellite positioning system, a transceiver, a motion measurement system, and position estimation logic. The position estimation logic is configured to determine a reference location as the device passes between areas of satellite positioning signal reception and satellite positioning signal non-reception. The device further configured to record measurements of movements provided by the motion measurement system and measurements of signals provided by the transceiver within areas of non-reception and to provide results to the positioning database.
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