专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

41. 发明授权

US09360560B2 Performing GPS operations in receiver sensor engine and position engine 有权
标题翻译：在接收机传感器引擎和位置引擎中执行GPS操作
公开(公告)号：US09360560B2
公开(公告)日：2016-06-07
申请号：US14686310
申请日：2015-04-14
申请人： Texas Instruments Incorporated
发明人： Goutam Dutta , Tarkesh Pande , Sandeep Rao , Deric W. Waters
IPC分类号： G01S19/47 , G01C21/16 , G01S19/20 , G01S19/49 , G01S19/52
CPC分类号： G01S19/47 , G01C21/165 , G01S19/20 , G01S19/49 , G01S19/52
摘要： Embodiments of the disclosure provide a cross coupled position engine architecture for sensor integration in a Global Navigation Satellite System. In one embodiment, a data processing engine for processing inertial sensor data within a positioning system receiver is disclosed. The data processing engine includes a first input for receiving the sensor data, and a second input for receiving a positioning data. The data processing system also includes a memory and a processor. The processor of the data processing system is coupled to the memory and to the first and second input. The processor of the data processing system is configured to calculate a net acceleration profile data from the inertial sensor data and from the positioning data. The net acceleration profile data calculated by the processor of the data processing system is used for the Global Positioning System (GPS) receiver to subsequently calculate a position and a velocity data.
摘要翻译：本公开的实施例提供了用于全球导航卫星系统中的传感器集成的交叉耦合位置引擎结构。在一个实施例中，公开了一种用于在定位系统接收器内处理惯性传感器数据的数据处理引擎。数据处理引擎包括用于接收传感器数据的第一输入端和用于接收定位数据的第二输入端。数据处理系统还包括存储器和处理器。数据处理系统的处理器耦合到存储器和第一和第二输入端。数据处理系统的处理器被配置为从惯性传感器数据和定位数据计算净加速度曲线数据。由数据处理系统的处理器计算的净加速度曲线数据用于全球定位系统（GPS）接收机，以随后计算位置和速度数据。

42. 发明申请

US20160146933A1 Controlling Radar Transmission to Enable Interference Mitigation 有权
标题翻译：控制雷达传输以实现干扰减轻
公开(公告)号：US20160146933A1
公开(公告)日：2016-05-26
申请号：US14552505
申请日：2014-11-25
申请人： Texas Instruments Incorporated
发明人： Sandeep Rao , Karthik Subburaj
IPC分类号： G01S13/28 , G01S7/02 , G01S7/28
CPC分类号： G01S7/023 , G01S7/28 , G01S7/354 , G01S13/34 , G01S13/343 , G01S13/38 , G01S13/583 , G01S13/931
摘要： Radar detection of an object is achieved by identifying a first range associated with a possible object based on a first return from a first radar transmission having a first chirp rate, and identifying a second range associated with the possible object based on a second return from a second radar transmission having a second chirp rate that differs from the first chirp rate. The first and second ranges are evaluated together to determine whether the possible object is a true object.
摘要翻译：通过基于来自具有第一啁啾率的第一雷达传输的第一返回来识别与可能对象相关联的第一范围，并且基于来自第一啁啾率的第二返回来识别与可能对象相关联的第二范围来实现对象的雷达检测第二雷达传输具有与第一啁啾率不同的第二啁啾率。一起评估第一和第二范围以确定可能的对象是否是真实对象。

43. 发明申请

US20160116570A1 METHOD TO "ZOOM INTO" SPECIFIC OBJECTS OF INTEREST IN A RADAR 有权
标题翻译：将“缩小为”雷达利益特定目标的方法“
公开(公告)号：US20160116570A1
公开(公告)日：2016-04-28
申请号：US14521325
申请日：2014-10-22
申请人： Texas Instruments Incorporated
发明人： Karthik Ramasubramanian , Sandeep Rao
IPC分类号： G01S7/02 , G01S13/08
CPC分类号： G01S7/02 , G01S7/03 , G01S7/354 , G01S13/08 , G01S13/343 , G01S13/931 , G01S2007/356
摘要： The disclosure provides a radar apparatus fur estimating a distance of the one or more obstacles in a range of interest. The radar apparatus includes a local oscillator that generates a first ramp segment having a first start frequency. A frequency shifter receives the first ramp segment and generates a transmit signal and a mixer signal. The transmit signal is scattered by a one or more obstacles in the range of interest to generate the scattered signal. A mixer mixes the scattered signal and the mixer signal to generate a non-zero IF signal which is filtered to generate a filtered non-zero IF signal. An ADC (analog to digital converter) samples the filtered non-zero IF signal to generate a valid data. A DSP (digital signal processor) processes the valid data for estimating the distance of the one or more obstacles.
摘要翻译：本公开提供了一种雷达装置，用于估计感兴趣的范围内的一个或多个障碍物的距离。雷达装置包括本地振荡器，其产生具有第一起始频率的第一斜坡段。频移器接收第一斜坡段并产生发射信号和混频器信号。发射信号被感兴趣范围内的一个或多个障碍物散射以产生散射信号。混频器将散射信号和混频器信号混合以产生非零IF信号，其被滤波以产生经滤波的非零IF信号。 ADC（模数转换器）对滤波后的非零IF信号进行采样以生成有效数据。 DSP（数字信号处理器）处理有效数据以估计一个或多个障碍物的距离。

44. 发明授权

US09057615B2 Systems and methods for navigating using corrected yaw bias values 有权
标题翻译：使用校正的偏航偏差值进行导航的系统和方法
公开(公告)号：US09057615B2
公开(公告)日：2015-06-16
申请号：US13661318
申请日：2012-10-26
申请人： TEXAS INSTRUMENTS INCORPORATED
发明人： Sandeep Rao , Deric Wayne Waters
IPC分类号： G01C21/10 , G01C21/16
CPC分类号： G01C21/18 , G01C17/38 , G01C19/42 , G01C21/005 , G01C21/06 , G01C21/16 , G01C21/26
摘要： A method for navigating using a speed sensor and a yaw rate sensor includes computing, for each of a plurality of error parameter values, a distance traveled for each of a plurality of directions of travel. The method also includes selecting the error parameter value that maximizes the distance traveled in one or more of the directions of travel, applying the selected error parameter value to data from the yaw rate sensor, and navigating using dead reckoning based on data from the speed sensor and data from the yaw rate sensor with the applied error parameter value.
摘要翻译：使用速度传感器和偏航率传感器进行导航的方法包括针对多个误差参数值中的每个错误参数值计算多个行进方向中的每一个行进的距离。该方法还包括选择误差参数值，该误差参数值使在行进方向中的一个或多个方向上移动的距离最大化，将所选择的误差参数值应用于来自偏航率传感器的数据，以及使用基于来自速度传感器的数据的航位推算和来自偏航率传感器的数据与应用的误差参数值。

45. 发明授权

US08935597B2 Receivers, circuits, and methods to improve GNSS time-to-fix and other performances 有权
标题翻译：接收器，电路和方法，以改善GNSS定时和其他性能
公开(公告)号：US08935597B2
公开(公告)日：2015-01-13
申请号：US13860907
申请日：2013-04-11
申请人： Texas Instruments Incorporated
发明人： Sandeep Rao , Jawaharlal Tangudu , Karthik Ramasubramanian
IPC分类号： H03M13/00 , G06F11/10 , G01S19/27
CPC分类号： G06F11/10 , G01S19/27
摘要： An electronic circuit (2250) for a satellite receiver (100, 2200). The electronic circuit (2250) includes a correlator circuit (2310) operable to supply a data signal including ephemeris data and a subsequent satellite time datum, and a data processor (2370, 2380) operable to infer satellite time TS from as few as one of the ephemeris data prior to the satellite time datum. Other circuits, devices, receivers, systems, processes of operation and processes of manufacture are also disclosed.
摘要翻译：一种用于卫星接收机（100,2200）的电子电路（2250）。电子电路（2250）包括可操作以提供包括星历数据和随后的卫星时间数据的数据信号的相关器电路（2310），以及数据处理器（2370,2808），其可操作以从至少一个在卫星时间基准之前的星历数据。还公开了其它电路，设备，接收器，系统，操作过程和制造过程。

46. 发明申请

US20230094118A1 RADAR SYSTEM IMPLEMENTING SEGMENTED CHIRPS AND PHASE COMPENSATION FOR OBJECT MOVEMENT 有权
公开(公告)号：US20230094118A1
公开(公告)日：2023-03-30
申请号：US17486435
申请日：2021-09-27
申请人： TEXAS INSTRUMENTS INCORPORATED
发明人： Karthik Subburaj , Sandeep Rao
IPC分类号： G01S7/35 , G01S13/931 , G01S13/58
摘要： An apparatus comprises processor cores and computer-readable mediums storing machine instructions for the processor cores. When executing the machine instructions, the processor cores obtain received signals for transmitted chirps from a radar sensor circuit. Each transmitted chirp comprises an A chirp segment, a time gap, and a B chirp segment, respectively. The processor cores sample the received signals to obtain sampled data matrices M1(A) for the A chirp segments and M1(B) for the B chirp segments. The processor cores perform a first Fourier transform (FT) on each column of M1(A) and M1(B) to obtain velocity matrices M2(A) and M2(B), respectively. The processor cores apply a phase compensation factor to M2(B) to obtain a phase corrected velocity matrix M2(B′), and concatenate M2(A) and M2(B′) to obtain an aggregate velocity matrix M2(A&B′). The processor cores perform a second FT on each row of M2(A&B′) to obtain a range and velocity matrix M3(A&B′).

47. 发明授权

US11579282B2 Maximum measurable velocity in frequency modulated continuous wave (FMCW) radar 有权
公开(公告)号：US11579282B2
公开(公告)日：2023-02-14
申请号：US17843069
申请日：2022-06-17
申请人： Texas Instruments Incorporated
发明人： Sandeep Rao , Karthik Subburaj , Sriram Murali , Karthik Ramasubramanian
IPC分类号： G01S13/28 , G06F17/14 , G01S7/41 , G01S13/536 , G01S13/34 , G01S7/35 , G01S13/931 , G06F17/13 , H04N5/232
摘要： A radar system is provided that includes a radar transceiver integrated circuit (IC) configurable to transmit a first frame of chirps, and another radar transceiver IC configurable to transmit a second frame of chirps at a time delay ΔT, wherein ΔT=Tc/K, K≥2 and Tc is an elapsed time from a start of one chirp in the first frame and the second frame and a start of a next chirp in the first frame and the second frame, wherein the radar system is configured to determine a velocity of an object in a field of view of the radar system based on first digital intermediate frequency signals generated responsive to receiving reflected chirps of the first frame and second digital IF signals generated responsive to receiving reflected chirps of the time delayed second frame, wherein the maximum measurable velocity is increased by a factor of K.

48. 发明申请

US20220326368A1 Maximum Measurable Velocity in Frequency Modulated Continuous Wave (FMCW) Radar 有权
公开(公告)号：US20220326368A1
公开(公告)日：2022-10-13
申请号：US17843069
申请日：2022-06-17
申请人： Texas Instruments Incorporated
发明人： Sandeep Rao , Karthik Subburaj , Sriram Murali , Karthik Ramasubramanian
IPC分类号： G01S13/28 , G06F17/14 , G01S7/41 , G01S13/536 , G01S13/931 , G01S13/34 , G01S7/35
摘要： A radar system is provided that includes a radar transceiver integrated circuit (IC) configurable to transmit a first frame of chirps, and another radar transceiver IC configurable to transmit a second frame of chirps at a time delay ΔT, wherein ΔT=Tc/K, K≥2 and Tc is an elapsed time from a start of one chirp in the first frame and the second frame and a start of a next chirp in the first frame and the second frame, wherein the radar system is configured to determine a velocity of an object in a field of view of the radar system based on first digital intermediate frequency signals generated responsive to receiving reflected chirps of the first frame and second digital IF signals generated responsive to receiving reflected chirps of the time delayed second frame, wherein the maximum measurable velocity is increased by a factor of K.

49. 发明申请

US20220196824A1 ON-FIELD PHASE CALIBRATION 有权
公开(公告)号：US20220196824A1
公开(公告)日：2022-06-23
申请号：US17132857
申请日：2020-12-23
申请人： TEXAS INSTRUMENTS INCORPORATED
发明人： Sandeep Rao , Karthik Subburaj
IPC分类号： G01S13/58 , G01S7/40
摘要： A radar system is provided and includes a radar transceiver integrated circuit (IC) and a processor coupled to the radar transceiver IC. The radar transceiver IC includes a chirp generator configured to generate a plurality of chirp signals and a phase shifter configured to induce a signal phase shift. The radar transceiver IC is configured to transmit a frame of chirps based on the plurality of chirp signals and generate a plurality of digital signals, each digital signal corresponding to a respective reflection received based on the plurality of chirp signals. The processor is configured to control the phase shifter to induce the signal phase shift in a first subset of chirp signals of the plurality of chirp signals and determine a phase shift induced in the first subset of chirp signals by the phase shifter based on the digital signal.

50. 发明授权

US11209522B2 Method and apparatus for FMCW radar processing 有权
公开(公告)号：US11209522B2
公开(公告)日：2021-12-28
申请号：US16107000
申请日：2018-08-21
申请人： TEXAS INSTRUMENTS INCORPORATED
发明人： Sandeep Rao , Karthik Ramasubramanian
IPC分类号： G01S7/35 , G01S13/42 , G01S13/89 , G01S13/931 , G01S13/58
摘要： The disclosure provides a radar apparatus. The radar apparatus includes a transmitter that transmits a first chirp. The first chirp is scattered by one or more obstacles to generate a first plurality of scattered signals. A plurality of receivers receives the first plurality of scattered signals. Each receiver of the plurality of receivers generates a digital signal in response to a scattered signal of the first plurality of scattered signals. A processor is coupled to the plurality of receivers and receives the digital signals from the plurality of receivers. The processor performs range FFT (fast fourier transform) and angle FFT on the digital signals received from the plurality of receivers to generate a first matrix of complex samples.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式