公开(公告)号：US20170257126A1

公开(公告)日：2017-09-07

申请号：US15061301

申请日：2016-03-04

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Tarkesh PANDE ,  Anuj BATRA ,  IL Han KIM

IPC: H04B1/10 ,  H04L5/00

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.

公开(公告)号：US20150098515A1

公开(公告)日：2015-04-09

申请号：US14510944

申请日：2014-10-09

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Anuj BATRA ,  II Han KIM ,  Mehul Madhav SOMAN ,  Minghua FU

IPC: H04B3/54

CPC classification number: H04B3/54 ,  H04B2203/5425

Abstract: A system includes an analog front end (AFE) unit to be coupled to a power line network, and a controller coupled to the AFE unit. More specifically, the AFE unit is to receive a packet signal from the power line network wherein, based on a first gain parameter, the AFE unit is to amplify the received packet signal. The controller is configured to calculate a root-mean-square (RMS) power of the amplified packet signal. Further, the AFE unit is to calculate a second gain parameter based on the calculated RMS power of the amplified packet signal and the first gain parameter, wherein the second gain parameter is to be used to amplify the received packet signal instead of the first gain parameter.

Abstract translation: 系统包括要耦合到电力线网络的模拟前端（AFE）单元和耦合到AFE单元的控制器。 更具体地说，AFE单元将从电力线网络接收分组信号，其中基于第一增益参数，AFE单元将放大接收的分组信号。 控制器被配置为计算放大的分组信号的均方根（RMS）功率。 此外，AFE单元是基于所计算的放大的分组信号的RMS功率和第一增益参数来计算第二增益参数，其中第二增益参数将用于放大接收的分组信号而不是第一增益参数 。

公开(公告)号：US20140307841A1

公开(公告)日：2014-10-16

申请号：US14145431

申请日：2013-12-31

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Reza HOSHYAR ,  Anuj BATRA ,  Timothy Mark SCHMIDL

IPC: H04L27/26 ,  H04B17/00

CPC classification number: H04L27/2647 ,  H04B17/336

Abstract: An orthogonal frequency-division multiplexed (OFDM)-based receiver for channel tracking with signal-to-noise ratio dependent parameters that includes a memory; and a signal processor, coupled to the memory. The signal processor to estimate a signal-to-noise ratio (SNR) for a received packet of OFDM symbols and determine an SNR region in which the SNR estimate falls, wherein the signal processor implements a different set of finite impulse response (FIR) filter coefficients for each SNR region.

Abstract translation: 一种用于信道跟踪的基于正交频分复用（OFDM）的接收机，其具有包括存储器的信噪比相关参数; 以及耦合到存储器的信号处理器。 信号处理器，用于估计接收到的OFDM符号分组的信噪比（SNR），并确定SNR估计下降的SNR区域，其中信号处理器实现不同的一组有限脉冲响应（FIR）滤波器 每个SNR区域的系数。

公开(公告)号：US20140307810A1

公开(公告)日：2014-10-16

申请号：US14048411

申请日：2013-10-08

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Anuj BATRA ,  Timothy Mark SCHMIDL ,  Il Han KIM

IPC: H04L27/26 ,  H04B3/54

CPC classification number: H04L27/2634 ,  H04B3/542 ,  H04B2203/5433 ,  H04L25/03834

Abstract: A smart utility network (SUN) device that includes an orthogonal frequency-division multiplexing (OFDM)-based transmitter. The OFDM-based transmitter including a signal processor to convert data from a frequency-domain to a time-domain using an inverse fast Fourier transform (IFFT) and configured to perform a time-domain windowing function based on a Hanning window on OFDM symbols.

Abstract translation: 一种智能公用事业网络（SUN）装置，其包括基于正交频分复用（OFDM）的发射机。 基于OFDM的发射机包括信号处理器，用于使用逆快速傅里叶变换（IFFT）将数据从频域转换到时域，并被配置为基于OFDM符号上的汉宁窗执行时域加窗函数。

公开(公告)号：US20150281778A1

公开(公告)日：2015-10-01

申请号：US14254535

申请日：2014-04-16

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Ariton E. XHAFA ,  Anuj BATRA

IPC: H04N21/458 ,  H04N21/2187 ,  H04N21/4147 ,  H04N21/472 ,  H04N21/44 ,  H04N21/439

CPC classification number: H04N21/4583 ,  H04N21/2187 ,  H04N21/4147 ,  H04N21/4334 ,  H04N21/4394 ,  H04N21/44008 ,  H04N21/47217

Abstract: A system (and method) automatically extends a scheduled recording of a live event past its scheduled end time. The system include includes a content interface to receive program content. The system also includes a user interface to permit a user to schedule a user-selected program content for recording. The user-selected program content has a scheduled start time and a scheduled end time. A program content analyzer may detect a pattern in the user-selected program content. A recording unit may record the user-selected program content and automatically extend the recording past the scheduled end time based on whether the pattern is detected.

Abstract translation: 系统（和方法）自动将活动事件的预定录像延长到其预定的结束时间。 该系统包括用于接收节目内容的内容接口。 系统还包括允许用户安排用户选择的节目内容进行记录的用户界面。 用户选择的节目内容具有预定的开始时间和预定的结束时间。 程序内容分析器可以检测用户选择的节目内容中的模式。 记录单元可以记录用户选择的节目内容，并且基于是否检测到图案自动地将记录延长到预定的结束时间。

公开(公告)号：US20140323070A1

公开(公告)日：2014-10-30

申请号：US14262097

申请日：2014-04-25

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Ariton E. XHAFA ,  Anuj BATRA ,  Jacek STARCHURSKI

IPC: H04B1/10

CPC classification number: H04B1/1027 ,  H04B2001/1072

Abstract: A method comprises determining, by a radio, whether a current preferred radio station currently tuned to by a radio is experiencing a faded signal. Based on determining that the current preferred radio station is experiencing a faded signal, the method further includes automatically selecting, by the radio, a replacement preferred radio station. A radio with such capabilities is also disclosed.

Abstract translation: 一种方法包括通过无线电确定当前由无线电调谐的当前优选无线电台是否正在经历褪色信号。 基于确定当前优选的无线电台正在经历褪色信号，该方法还包括由无线电自动选择替换优选的无线电台。 还公开了具有这种能力的无线电。

公开(公告)号：US20140307813A1

公开(公告)日：2014-10-16

申请号：US14145471

申请日：2013-12-31

Applicant: TEXAS INSTRUMENTS INCORPORATED

Inventor： Reza HOSHYAR ,  Anuj BATRA ,  Timothy Mark SCHMIDL

IPC: H04L25/02 ,  H04L27/26

CPC classification number: H04L25/0202 ,  H04L5/0048 ,  H04L25/0204 ,  H04L25/022 ,  H04L25/023 ,  H04L27/26 ,  H04L27/2601

Abstract: A device for updating complex channel gain estimates for orthogonal frequency division multiplexed (OFDM) symbols that includes a receiver to receive a plurality of OFDM symbols, wherein each OFDM symbol includes a plurality of pilot tones at a subset of odd positions and a finite impulse response (FIR) filter. The FIR filter configured to filter a plurality of initial channel estimates of odd tones of an OFDM symbol using a first set of coefficients to generate an updated estimate of the channel estimates of the plurality of odd tones for that OFDM symbol, and filter the plurality of the initial channel estimates of the odd tones of the OFDM symbol using a second set of coefficients to generate estimates for a plurality of initial channel estimates of even tones for that OFDM symbol.

Abstract translation: 一种用于更新用于正交频分复用（OFDM）符号的复信道增益估计的装置，其包括用于接收多个OFDM符号的接收机，其中每个OFDM符号包括在奇数位置的子集处的多个导频音调和有限脉冲响应 （FIR）滤波器。 FIR滤波器被配置为使用第一组系数来过滤OFDM符号的奇数音调的多个初始信道估计，以生成用于该OFDM符号的多个奇音调的信道估计的更新估计，并且对多个 使用第二组系数的OFDM符号的奇数音调的初始信道估计来生成用于该OFDM符号的偶数个音调的多个初始信道估计的估计。