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1. 发明授权

US09037625B2 Multi-standard multi-rate filter 有权
标题翻译：多标准多速率滤波器
公开(公告)号：US09037625B2
公开(公告)日：2015-05-19
申请号：US13441501
申请日：2012-04-06
申请人： Mark Alan Sturza , Donald Leimer
发明人： Mark Alan Sturza , Donald Leimer
IPC分类号： H03H17/02 , H03H17/06
CPC分类号： H03H17/0279 , H03H17/0277 , H03H17/0664
摘要： A method is provided for decimating a digital signal by a factor of M and matching it to a desired channel bandwidth. The method applies the digital signal input samples to a (M−1) stage tapped delay line, downsamples the input samples and the output samples of each tapped delay line stage by a factor of M, and applies each of the M downsampled sample value streams to M allpass IIR filters, respectively. The M allpass IIR filtered sample streams are then summed and scaled by a factor of 1/M. The result can then be filtered by a digital channel filter.
摘要翻译：提供了一种用于将数字信号抽取为因子M并将其与所需信道带宽匹配的方法。该方法将数字信号输入采样应用于（M-1）级抽头延迟线，将每个抽头延迟线级的输入采样和输出采样下降一个因子M，并将每个M下采样的采样值流到M allpass IIR滤波器。然后将M allpass IIR滤波后的样本流相加并按比例乘以1 / M。然后可以通过数字通道滤波器对结果进行滤波。

2. 发明授权

US08176107B2 Multi-standard multi-rate filter 有权
标题翻译：多标准多速率滤波器
公开(公告)号：US08176107B2
公开(公告)日：2012-05-08
申请号：US11611542
申请日：2006-12-15
申请人： Mark Alan Sturza , Donald Leimer
发明人： Mark Alan Sturza , Donald Leimer
IPC分类号： G06F17/17
CPC分类号： H03H17/0279 , H03H17/0277 , H03H17/0664
摘要： A method is provided for decimating a digital signal by a factor of M and matching it to a desired channel bandwidth. The method applies the digital signal input samples to a (M-1) stage tapped delay line, downsamples the input samples and the output samples of each tapped delay line stage by a factor of M, and applies each of the M downsampled sample value streams to M allpass IIR filters, respectively. The M allpass IIR filtered sample streams are then summed and scaled by a factor of 1/M. The result can then be filtered by a digital channel filter.
摘要翻译：提供了一种用于将数字信号抽取为因子M并将其与所需信道带宽匹配的方法。该方法将数字信号输入采样应用于（M-1）级抽头延迟线，将每个抽头延迟线级的输入采样和输出采样下降一个因子M，并将每个M下采样的采样值流到M allpass IIR滤波器。然后将M allpass IIR滤波后的样本流相加并按比例乘以1 / M。然后可以通过数字通道滤波器对结果进行滤波。

3. 发明申请

US20070206687A1 MEMORY EFFICIENT OFDM CHANNEL ESTIMATION AND FREQUENCY DOMAIN DIVERSITY PROCESSING 有权
标题翻译：存储有效的OFDM信道估计和频域分集处理
公开(公告)号：US20070206687A1
公开(公告)日：2007-09-06
申请号：US11614590
申请日：2006-12-21
申请人： Sharath Ananth , Sanjai Kohli , Mark Sturza , Donald Leimer
发明人： Sharath Ananth , Sanjai Kohli , Mark Sturza , Donald Leimer
IPC分类号： H04K1/10 , H04L1/02
CPC分类号： H04L27/2647 , H04L25/0232
摘要： A frequency domain diversity DVB receiver device includes multiple antenna ports for receiving radio signals, and radio signal processing circuits connected to the antenna ports that convert the received radio signals into digital samples. The digital samples from the different antenna ports time-share a front-end processor which processes the digital samples to provide time-domain symbols. The time-domain symbols are stored in time-domain symbol buffers according to which of the antenna ports the time-domain symbols are received. A fast fourier transform circuit then retrieves the time-domain symbols and converts them frequency-domain symbols, which are then stored one or more frequency-domain symbol buffers according to the antenna ports the corresponding radio signals are received. A diversity processor which combines the frequency-domain symbols from the frequency-domain symbol buffers.
摘要翻译：频域分集DVB接收机设备包括用于接收无线电信号的多个天线端口，以及连接到将接收到的无线电信号转换成数字样本的天线端口的无线电信号处理电路。来自不同天线端口的数字样本时间共享前端处理器，处理数字样本以提供时域符号。根据哪个天线端口接收时域符号，将时域符号存储在时域符号缓冲器中。快速傅立叶变换电路然后检索时域符号并对其进行频域符号转换，然后根据接收到相应无线电信号的天线端口存储一个或多个频域符号缓冲器。一种分集处理器，其组合来自频域符号缓冲器的频域符号。

4. 发明申请

US20120254272A1 MULTI-STANDARD MULTI-RATE FILTER 有权
标题翻译：多标准多速率滤波器
公开(公告)号：US20120254272A1
公开(公告)日：2012-10-04
申请号：US13441501
申请日：2012-04-06
申请人： Mark Alan Sturza , Donald Leimer
发明人： Mark Alan Sturza , Donald Leimer
IPC分类号： G06F17/17
CPC分类号： H03H17/0279 , H03H17/0277 , H03H17/0664
摘要： A method is provided for decimating a digital signal by a factor of M and matching it to a desired channel bandwidth. The method applies the digital signal input samples to a (M−1) stage tapped delay line, downsamples the input samples and the output samples of each tapped delay line stage by a factor of M, and applies each of the M downsampled sample value streams to M allpass IIR filters, respectively. The M allpass IIR filtered sample streams are then summed and scaled by a factor of 1/M. The result can then be filtered by a digital channel filter.
摘要翻译：提供了一种用于将数字信号抽取为因子M并将其与所需信道带宽匹配的方法。该方法将数字信号输入采样应用于（M-1）级抽头延迟线，将每个抽头延迟线级的输入采样和输出采样下降一个因子M，并将每个M下采样的采样值流到M allpass IIR滤波器。然后将M allpass IIR滤波后的样本流相加并按比例乘以1 / M。然后可以通过数字通道滤波器对结果进行滤波。

5. 发明授权

US07466778B2 Memory efficient OFDM channel estimation and frequency domain diversity processing 有权
标题翻译：存储器有效的OFDM信道估计和频域分集处理
公开(公告)号：US07466778B2
公开(公告)日：2008-12-16
申请号：US11614590
申请日：2006-12-21
申请人： Sharath Ananth , Sanjai Kohli , Mark Alan Sturza , Donald Leimer
发明人： Sharath Ananth , Sanjai Kohli , Mark Alan Sturza , Donald Leimer
IPC分类号： H04L1/02 , H04B7/08
CPC分类号： H04L27/2647 , H04L25/0232
摘要： A frequency domain diversity DVB receiver device includes multiple antenna ports for receiving radio signals, and radio signal processing circuits connected to the antenna ports that convert the received radio signals into digital samples. The digital samples from the different antenna ports time-share a front-end processor which processes the digital samples to provide time-domain symbols. The time-domain symbols are stored in time-domain symbol buffers according to which of the antenna ports the time-domain symbols are received. A fast fourier transform circuit then retrieves the time-domain symbols and converts them frequency-domain symbols, which are then stored one or more frequency-domain symbol buffers according to the antenna ports the corresponding radio signals are received. A diversity processor which combines the frequency-domain symbols from the frequency-domain symbol buffers.
摘要翻译：频域分集DVB接收机设备包括用于接收无线电信号的多个天线端口，以及连接到将接收的无线电信号转换成数字样本的天线端口的无线电信号处理电路。来自不同天线端口的数字样本时间共享前端处理器，处理数字样本以提供时域符号。根据哪个天线端口接收时域符号，将时域符号存储在时域符号缓冲器中。快速傅立叶变换电路然后检索时域符号并对其进行频域符号转换，然后根据接收到相应无线电信号的天线端口，存储一个或多个频域符号缓冲器。一种分集处理器，其组合来自频域符号缓冲器的频域符号。

6. 发明申请

US20070156800A1 MULTI-STANDARD MULTI-RATE FILTER 有权
标题翻译：多标准多速率滤波器
公开(公告)号：US20070156800A1
公开(公告)日：2007-07-05
申请号：US11611542
申请日：2006-12-15
申请人： Mark Sturza , Donald Leimer
发明人： Mark Sturza , Donald Leimer
IPC分类号： G06F17/10
CPC分类号： H03H17/0279 , H03H17/0277 , H03H17/0664
摘要： A method is provided for decimating a digital signal by a factor of M and matching it to a desired channel bandwidth. The method applies the digital signal input samples to a (M−1) stage tapped delay line, downsamples the input samples and the output samples of each tapped delay line stage by a factor of M, and applies each of the M downsampled sample value streams to M allpass IRR filters, respectively. The M allpass IRR filtered sample streams are then summed and scaled by a factor of 1/M. The result can then be filtered by a digital channel filter.
摘要翻译：提供了一种用于将数字信号抽取为因子M并将其与所需信道带宽匹配的方法。该方法将数字信号输入采样应用于（M-1）级抽头延迟线，将每个抽头延迟线级的输入采样和输出采样下降一个因子M，并将每个M下采样的采样值流到M allpass IRR滤波器。然后将M allpass IRR滤波的样本流相加并按比例乘以1 / M。然后可以通过数字通道滤波器对结果进行滤波。

7. 发明授权

US07889780B2 Method of estimating doppler spread and signal-to-noise ratio of a received signal 有权
标题翻译：估计接收信号的多普勒扩展和信噪比的方法
公开(公告)号：US07889780B2
公开(公告)日：2011-02-15
申请号：US11619178
申请日：2007-01-02
申请人： Donald Leimer
发明人： Donald Leimer
IPC分类号： H04B1/00
CPC分类号： H04B1/1027 , H04L27/261
摘要： A method for estimating a Doppler spread and a signal-to-noise ratio of a received signal includes: (a) calculating one or more functions of a carrier component of the received signal at a first time point relative to a pilot signal embedded in the received signal; (b) Calculating the one or more functions of the carrier component of the received signal at a second time point relative to the pilot signal; (c) repeating steps (a) and (b) over multiple time periods, each time period being substantially longer than the second time, and accumulating the one or more functions for the first time points and the second time points; and (d) Deriving the Doppler spread and the signal-to-noise ration based on the accumulated one or more functions calculated at the first and second time points. In one embodiment, the first time point is substantially closer to the pilot signal than the second time point. The first time point is one symbol interval from the pilot signal.
摘要翻译：用于估计接收信号的多普勒扩展和信噪比的方法包括：（a）在第一时间点相对于嵌入在所述接收信号中的导频信号来计算接收信号的载波分量的一个或多个函数接收信号; （b）相对于导频信号在第二时间点计算接收信号的载波分量的一个或多个功能; （c）在多个时间段内重复步骤（a）和（b），每个时间段基本上长于第二时间，并累积第一时间点和第二时间点的一个或多个功能; 以及（d）基于在第一和第二时间点计算出的积累的一个或多个函数来导出多普勒扩展和信噪比。在一个实施例中，第一时间点基本上比第二时间点更接近导频信号。第一时间点是与导频信号的一个符号间隔。

8. 发明申请

US20070183485A1 METHOD OF ESTIMATING DOPPLER SPREAD AND SIGNAL-TO-NOISE RATIO OF A RECEIVED SIGNAL 有权
标题翻译：估计接收信号的多普勒频谱和信号噪声比的方法
公开(公告)号：US20070183485A1
公开(公告)日：2007-08-09
申请号：US11619178
申请日：2007-01-02
申请人： Donald Leimer
发明人： Donald Leimer
IPC分类号： H04B1/00
CPC分类号： H04B1/1027 , H04L27/261
摘要： A method for estimating a Doppler spread and a signal-to-noise ratio of a received signal includes: (a) calculating one or more functions of a carrier component of the received signal at a first time point relative to a pilot signal embedded in the received signal; (b) Calculating the one or more functions of the carrier component of the received signal at a second time point relative to the pilot signal; (c) repeating steps (a) and (b) over multiple time periods, each time period being substantially longer than the second time, and accumulating the one or more functions for the first time points and the second time points; and (d) Deriving the Doppler spread and the signal-to-noise ration based on the accumulated one or more functions calculated at the first and second time points. In one embodiment, the first time point is substantially closer to the pilot signal than the second time point. The first time point is one symbol interval from the pilot signal.
摘要翻译：用于估计接收信号的多普勒扩展和信噪比的方法包括：（a）在第一时间点相对于嵌入在所述接收信号中的导频信号来计算接收信号的载波分量的一个或多个函数接收信号; （b）相对于导频信号在第二时间点计算接收信号的载波分量的一个或多个功能; （c）在多个时间段内重复步骤（a）和（b），每个时间段基本上长于第二时间，并累积第一时间点和第二时间点的一个或多个功能; 以及（d）基于在第一和第二时间点计算出的积累的一个或多个函数来导出多普勒扩展和信噪比。在一个实施例中，第一时间点基本上比第二时间点更接近导频信号。第一时间点是与导频信号的一个符号间隔。

9. 发明授权

US6081228A Receiver phase-noise mitigation 有权
标题翻译：接收器相位噪声减轻
公开(公告)号：US6081228A
公开(公告)日：2000-06-27
申请号：US153680
申请日：1998-09-15
申请人： Donald Leimer
发明人： Donald Leimer
IPC分类号： G01S1/00 , G01S19/11 , H04B1/7085 , H04B7/185 , G01S5/02
CPC分类号： H04B1/7085 , G01S19/21 , G01S19/29 , H04B2201/70715
摘要： A Global Positioning System receiver incorporating a method of reducing the effect of common mode oscillator phase noise. Oscillator phase noise in the receiver is a basic limitation on narrowing the carrier tracking loop bandwidth and, therefore, on the achievable carrier-track C/No for a GPS receiver tracking a single satellite signal. However, when receiving several satellite signals, the receiver phase noise is common to all tracking loops and, in principle, can be removed by a common-mode rejection scheme. The phase noise contributed by the satellites is negligible in comparison with the phase noise contributed by the receiver's oscillator; hence, the common-mode rejection is improved by tracking multiple satellite signals.
摘要翻译：一种全球定位系统接收机，包括降低共模振荡器相位噪声影响的方法。接收机中的振荡器相位噪声是缩小载波跟踪环路带宽的基本限制，因此是跟踪单个卫星信号的GPS接收机可实现的载波轨道C / No的基本限制。然而，当接收到几个卫星信号时，接收机相位噪声对于所有跟踪环路是公共的，并且原则上可以通过共模抑制方案去除。与由接收机的振荡器提供的相位噪声相比，由卫星贡献的相位噪声可以忽略不计; 因此，通过跟踪多个卫星信号来改善共模抑制。

10. 发明申请

US20110205115A1 Always on GPS Device 审中-公开
标题翻译：始终在GPS设备上
公开(公告)号：US20110205115A1
公开(公告)日：2011-08-25
申请号：US12347857
申请日：2008-12-31
申请人： Steven A. Gronemeyer , Mark A. Sturza , Donald Leimer , Sanjai Kohli
发明人： Steven A. Gronemeyer , Mark A. Sturza , Donald Leimer , Sanjai Kohli
IPC分类号： G01S19/34
CPC分类号： G01S19/34 , G01S19/235
摘要： A wireless device including a transceiver that utilizes a power supply is described. The wireless device includes a Global Positioning System (“GPS”) section having a plurality of GPS subsystems and a power controller in signal communication with the power supply and GPS section, wherein the power controller is configured to selectively power each GPS subsystem from the plurality of GPS subsystems.
摘要翻译：描述了包括使用电源的收发器的无线设备。无线设备包括具有多个GPS子系统的全球定位系统（“GPS”）部分和与电源和GPS部分进行信号通信的功率控制器，其中功率控制器被配置为从多个的GPS子系统。

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