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公开(公告)号：US20180234526A1
公开(公告)日：2018-08-16
申请号：US15894250
申请日：2018-02-12
Applicant: Texas Instruments Incorporated
Inventor： Gang Xu , Ramanuja Vedantham , Kumaran Vijayasankar , Anand G Dabak , Tarkesh Pande , Il Han Kim , Xiaolin Lu
CPC classification number: H04L69/22 , H04B3/54 , H04B3/542 , H04B2203/5408
Abstract: In a disclosed embodiment, a method for communication in a network includes receiving, at a first device registered to the network, a physical layer (PHY) frame that includes a PHY header and a MAC header. The PHY frame may further include a MAC payload. The PHY header includes a destination address field. The method further includes comparing a network address of the first device to the destination address field to determine whether the destination address field stores a value having the same number of bits as the network address. When the comparison indicates that the value stored by the destination address field does not have the same number of bits as the network address, the method skips decoding the MAC header and the MAC payload.
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公开(公告)号：US09954514B2
公开(公告)日：2018-04-24
申请号：US14624218
申请日：2015-02-17
Applicant: Texas Instruments Incorporated
Inventor： Tarkesh Pande , Srinivas Lingam
IPC: H03H17/06
CPC classification number: H03H17/0671
Abstract: A cascaded integrator-comb filter (CIC) that includes a differentiator, a rate changer, an integrator, and a multiplier. The differentiator is configured to differentiate an input signal to produce a differentiated input signal. The rate changer is coupled to the differentiator and is configured to interpolate the differentiated input signal based on an interpolation rate to produce an upsample signal. The integrator is coupled to the rate changer and is configured to integrate the upsample signal to produce an output signal. The multiplier is coupled to the differentiator, rate changer, and integrator and is configured to increase the output signal amplitude based on the interpolation rate.
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公开(公告)号：US09903717B2
公开(公告)日：2018-02-27
申请号：US15472602
申请日：2017-03-29
Applicant: Texas Instruments Incorporated
Inventor： Deric Wayne Waters , Tarkesh Pande
CPC classification number: G01C17/38 , G01C5/06 , G01C17/02 , G01P15/00 , G06F17/30879 , G06K7/10792 , G06K7/1417 , G06K19/06037
Abstract: In a disclosed embodiment, a system includes a digital imaging device, an electronic compass (e-compass), and a processor coupled to the digital imaging device and the e-compass. The processor is operable to execute instructions that cause the image device to scan a visual code, read a yaw angle from the visual code, cause the e-compass to obtain magnetic field measurements, estimate a yaw angle based on the magnetic field measurements, compare the yaw angle read from the visual code and the estimated yaw angle to determine a quality factor; and determine whether the e-compass is calibrated based at least partially upon the quality factor.
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公开(公告)号：US09780819B2
公开(公告)日：2017-10-03
申请号：US15061301
申请日：2016-03-04
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Tarkesh Pande , Anuj Batra , Il Han Kim
CPC classification number: H04J11/0066 , H04L25/03821 , H04L27/2647
Abstract: An orthogonal frequency division multiplexing (OFDM) receiver includes detection logic, offset generation logic, tone erasure logic, and correction generation logic. The detection logic is configured to detect a signal containing a block of samples that includes a narrowband interferer from a communication channel. The offset generation logic is configured to align a frequency of the narrowband interferer to a center of a subcarrier frequency of the communication channel to produce an offset signal thereby introducing inter-carrier interference (ICI). The tone erasure logic is configured to remove the subcarrier frequency from the offset signal to produce an interferer erased offset signal. The correction generation logic is configured to remove the ICI to produce an interferer erased signal.
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公开(公告)号：US09729289B2
公开(公告)日：2017-08-08
申请号：US14449981
申请日：2014-08-01
Applicant: Texas Instruments Incorporated
Inventor： Jing Lin , Tarkesh Pande , Il Han Kim , Anuj Batra
CPC classification number: H04L5/0048 , H04B3/54 , H04B2203/5408 , H04L27/20 , H04L27/36 , H04W28/04 , H04W72/1263
Abstract: A method of encoding a first bit and a second bit for transmission on a transmission band is provided. The method includes: mapping, via a mapping component, the first bit and the second bit into a first symbol; mapping, via the mapping component, the first bit and the second bit into a second symbol; dividing, via a dividing component, the transmission band into subcarriers; allocating, via an allocating component, the first symbol to a first subcarrier of the subcarriers; allocating, via the allocating component, the second symbol to a second subcarrier of the subcarriers; and differentially encoding, via a differential encoder, the first symbol and the second symbol.
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Patent Agency Ranking
公开(公告)号：US09618341B2
公开(公告)日：2017-04-11
申请号：US15054281
申请日：2016-02-26
Applicant: Texas Instruments Incorporated
Inventor： Deric Wayne Waters , Tarkesh Pande
CPC classification number: G01C17/38 , G01C5/06 , G01C17/02 , G01P15/00 , G06F17/30879 , G06K7/10792 , G06K7/1417 , G06K19/06037
Abstract: Visual codes are scanned to assist navigation. The visual code may be a Quick Response (QR) code that contains information useful to calibrating a variety of navigation-based sensors such as gyroscopes, e-compasses, and barometric pressure sensors. In an embodiment, an imaging device, an gyroscope, and a processor are elements of a system. The processor is coupled to the imaging device and the gyroscope. The processor causes the imaging device to scan a visual code. Based on scanning the visual code, the processor causes the gyroscope to be calibrated.
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公开(公告)号：US09557172B2
公开(公告)日：2017-01-31
申请号：US15054252
申请日：2016-02-26
Applicant: Texas Instruments Incorporated
Inventor： Deric Wayne Waters , Tarkesh Pande
CPC classification number: G01C17/38 , G01C5/06 , G01C17/02 , G01P15/00 , G06F17/30879 , G06K7/10792 , G06K7/1417 , G06K19/06037
Abstract: Visual codes are scanned to assist navigation. The visual code may be a Quick Response (QR) code that contains information useful to calibrating a variety of navigation-based sensors such as gyroscopes, e-compasses, and barometric pressure sensors. In an embodiment, an imaging device, an e-compass, an accelerometer, and a processor are elements of a system. The processor is coupled to the imaging device, the e-compass, and the accelerometer. The processor causes the imaging device to scan a visual code, read a yaw angle from the visual code, and computes an estimate of a yaw angle based on magnetic field measurements taken by the e-compass. The processor generates scale factors and biases determined from measurements generated by the e-compass. Based on scanning the visual code, the processor computes a quality factor based on the yaw angle read from the visual code and the estimate of the yaw angle.
Abstract translation: 扫描视觉代码以辅助导航。 视觉代码可以是快速响应（QR）代码，其包含用于校准各种基于导航的传感器（例如陀螺仪，电子罗盘和大气压力传感器）的信息。 在一个实施例中，成像设备，电子罗盘，加速度计和处理器是系统的元件。 处理器耦合到成像设备，电子罗盘和加速度计。 处理器使成像设备扫描视觉代码，从视觉代码读取偏航角度，并且基于由电子罗盘采集的磁场测量来计算偏航角的估计。 处理器产生由电子罗盘产生的测量确定的比例因子和偏差。 基于扫描视觉代码，处理器基于从视觉代码读取的偏航角和偏航角的估计来计算质量因子。
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38.发明申请System and Method for Preamble Detection in MIMO Narrowband Power Line Communications 审中-公开MIMO窄带电力线通信中的前导码检测系统与方法公开(公告)号：US20160323132A1
公开(公告)日：2016-11-03
申请号：US15206489
申请日：2016-07-11
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Mostafa Sayed Ibrahim , Il Han Kim , Tarkesh Pande , Anuj Batra
CPC classification number: H04L27/2656 , H04B3/54 , H04B3/542 , H04B3/546 , H04B7/0413 , H04L1/188 , H04L5/0023 , H04L7/042 , H04L27/26 , H04L27/2602 , H04L27/2613 , H04L27/2655 , H04L27/2663 , H04W74/0816
Abstract: A PLC network system and method operative with OFDM for generating MIMO frames with suitable preamble portions configured to provide backward compatibility with legacy PLC devices and facilitate different receiver tasks such as frame detection and symbol timing, channel estimation and automatic gain control (AGC), including robust preamble detection in the presence of impulsive noise and frequency-selective channels of the PLC network. A PLC device may include a delayed correlation detector and a cross-correlation detector operating in concert to facilitate preamble detection in one implementation.
Abstract translation: 一种PLC网络系统和方法，用于生成具有合适的前导码部分的MIMO帧的OFDM帧，其被配置为提供与传统PLC设备的向后兼容性，并且促进诸如帧检测和符号定时，信道估计和自动增益控制（AGC）的不同接收机任务，包括 在存在脉冲噪声和PLC网络的频率选择性通道的情况下进行鲁棒前同步码检测。 PLC设备可以包括延迟相关检测器和互相关检测器，其一起操作以便于在一个实现中进行前导码检测。
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公开(公告)号：US09467394B2
公开(公告)日：2016-10-11
申请号：US14450046
申请日：2014-08-01
Applicant: Texas Instruments Incorporated
Inventor： Jing Lin , Tarkesh Pande , Il Han Kim , Anuj Batra
IPC: H04W4/00 , H04J3/22 , H04L1/04 , H04L12/911 , H04L27/34 , H04B3/54 , H04L1/00 , H04L27/26 , H04L5/00 , H04L27/36
CPC classification number: H04L47/826 , H04B3/542 , H04B2203/5408 , H04B2203/5425 , H04K1/04 , H04K1/06 , H04L1/0071 , H04L5/0007 , H04L27/2627 , H04L27/3472 , H04L27/366
Abstract: A method of encoding a set of L bits for transmission on a transmission band through a transmission medium is provided, wherein L is a positive integer that is greater than 1. The method includes: mapping, via a mapping component, the L bits into M symbols; dividing, via a first dividing component, the transmission band into sub-bands; allocating, via an allocating component, the M symbols to individual sub-bands, respectively, for transmission at a first time; and allocating, via the allocating component, the M symbols to different individual sub-bands, respectively, for transmission at a second time.
Abstract translation: 提供一种通过传输介质对传输带上的一组L比特进行编码的方法，其中L是大于1的正整数。该方法包括：经由映射分量将L比特映射成M 符号; 经由第一分割部件将传输频带划分成子带; 分别经由分配组件将M个符号分配给各个子带，以便在第一时间进行传输; 并且经由分配组件分别将M个符号分配给不同的各个子带，以便在第二时间进行传输。
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公开(公告)号：US09425955B2
公开(公告)日：2016-08-23
申请号：US14826342
申请日：2015-08-14
Applicant: Texas Instruments Incorporated
Inventor： Kumaran Vijayasankar , Ramanuja Vedantham , Tarkesh Pande
CPC classification number: H04L63/123 , G06F15/177 , H04B3/54 , H04B3/542 , H04B2203/5408 , H04L9/0819 , H04L9/30 , H04L9/3242 , H04L63/0428 , H04L63/061 , H04L63/0876 , H04L2209/24
Abstract: Embodiments of the invention provide systems and methods for a cipher then segment approach in a Power Line Communication (PLC). A node or device generates frames to be transmitted to a destination node in the PLC network. A processor in the node is configured to generate a data payload comprising data to be sent to the destination node. The processor divides the data payload into two or more payload segments and encrypts the payload segments. The processor creates a frame for each of the encrypted payload segments, wherein each frame comprises a message integrity code. The processor creates a segment identifier for each frame using the message integrity code and an authentication key that is shared with the destination PLC node. The segment identifier is added to each frame.
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