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1. 发明申请

WO2008103996A1 CHANNEL CHANGE LATENCY REDUCTION 审中-公开
标题翻译：频道更改减少
公开(公告)号：WO2008103996A1
公开(公告)日：2008-08-28
申请号：PCT/US2008/054915
申请日：2008-02-25
申请人： MAXLINEAR, INC. , RAMESH, Sridhar , LING, Curtis , AKELLA, Ramakrishna , LEE, Brenndon
发明人： RAMESH, Sridhar , LING, Curtis , AKELLA, Ramakrishna , LEE, Brenndon
IPC分类号： H04N7/173
CPC分类号： H04H60/43 , H04H20/26 , H04H20/40 , H04H60/11 , H04N21/41407 , H04N21/4384
摘要： A wireless communication system is enhanced to allow for low-latency channel surfing and to enable a user to quickly see the content carried over a selected channel while searching channels for desired content. The techniques for reducing the channel change latency may be implemented in a transmitter, receiver, or in a combination of transmitter and receiver. The wireless communication system is optionally a DVB-H communication system. The transmitter may generate and transmit one or more auxiliary channels, where each auxiliary channel contains reduced resolution content corresponding to one or more channels. The receiver may process the one or more auxiliary channels to present the reduced resolution content while processing the full resolution channel for display. The receiver caches portions of content from one or more non-selected channels and presents the cached content when the channel is selected while concurrently searching and processing the full resolution channel content.
摘要翻译：增强无线通信系统以允许低等待时间的信道冲浪，并且使得用户能够在搜索频道寻找所需内容的同时快速查看通过所选频道携带的内容。用于减少信道改变等待时间的技术可以在发射机，接收机或发射机和接收机的组合中实现。无线通信系统可选地是DVB-H通信系统。发射机可以生成和发送一个或多个辅助信道，其中每个辅助信道包含对应于一个或多个信道的降低的分辨率内容。接收机可以处理一个或多个辅助信道以呈现降低的分辨率内容，同时处理用于显示的全分辨率信道。接收器从一个或多个非选择的信道缓存部分内容，并且在同时搜索和处理全分辨率信道内容的同时选择信道时呈现缓存的内容。

2. 发明申请

WO2011066473A1 CO-OPERATIVE GEOLOCATION 审中-公开
标题翻译：合作组合
公开(公告)号：WO2011066473A1
公开(公告)日：2011-06-03
申请号：PCT/US2010/058120
申请日：2010-11-24
申请人： MAXLINEAR, INC. , WALSH, Brendan , RAMESH, Sridhar , LING, Curtis
发明人： WALSH, Brendan , RAMESH, Sridhar , LING, Curtis
IPC分类号： H04W24/00
CPC分类号： G01S19/48 , G01S19/46 , H04W64/00 , H04W84/12 , H04W84/18
摘要： A method and apparatus for extending the coverage of geolocation to indoor locations through cooperative geolocation. The method includes establishing an ad-hoc wireless network comprising a plurality of devices including a first device. The method includes receiving, at the first device, position information from the plurality of devices and determining a physical location of the first device based on the received position information. In an embodiment, the position information is transmitted in response to a request by the first device. In an embodiment, the position information may include a time of arrival of the request received by each of the plurality of devices; and the time of arrival may be associated with a GNSS time. In an embodiment, the ad-hoc wireless network may be a Wi-Fi network, which is associated with one of the IEEE 802.11 standards.
摘要翻译：一种通过合作地理位置将地理位置的覆盖范围扩展到室内位置的方法和装置。该方法包括建立包括包括第一设备的多个设备的自组织无线网络。所述方法包括在所述第一设备处接收来自所述多个设备的位置信息，以及基于所接收的位置信息来确定所述第一设备的物理位置。在一个实施例中，响应于第一设备的请求发送位置信息。在一个实施例中，位置信息可以包括由多个设备中的每一个接收到的请求的到达时间; 并且到达时间可能与GNSS时间相关联。在一个实施例中，自组织无线网络可以是与IEEE 802.11标准之一相关联的Wi-Fi网络。

3. 发明申请

WO2011003104A1 METHODS AND SYSTEMS FOR LOCATION ESTIMATION 审中-公开
标题翻译：位置估计的方法和系统
公开(公告)号：WO2011003104A1
公开(公告)日：2011-01-06
申请号：PCT/US2010/040985
申请日：2010-07-02
申请人： MAXLINEAR, INC. , RAMESH, Sridhar , LING, Curtis
发明人： RAMESH, Sridhar , LING, Curtis
IPC分类号： G01S5/06
CPC分类号： G01S5/10 , G01S5/12 , G01S11/06
摘要： A receiver system and method for determining the location of a device in a wireless network having a plurality of transmitters is provided. The method includes receiving a signal at the device, transforming the received signal into a time-domain signal having a characteristic, and computing a range of the device from each of the plurality of transmitters based on the characteristic. Additionally, the method includes determining the location of the device based on the computed ranges. In certain embodiments, the characteristic may be a time of arrival, time difference of arrival, or a signal strength, and the wireless network is a DTV broadcasting network.
摘要翻译：提供了一种用于确定具有多个发射机的无线网络中的设备的位置的接收机系统和方法。该方法包括在设备处接收信号，将接收到的信号变换为具有特征的时域信号，并且基于该特性从多个发射机中的每一个计算设备的范围。另外，该方法包括基于所计算的范围来确定设备的位置。在某些实施例中，特征可以是到达时间，到达时间差或信号强度，并且无线网络是DTV广播网络。

4. 发明申请

WO2011053608A1 EDGE EQUALIZER 审中-公开
标题翻译：边缘均衡器
公开(公告)号：WO2011053608A1
公开(公告)日：2011-05-05
申请号：PCT/US2010/054168
申请日：2010-10-26
申请人： MAXLINEAR, INC. , KIM, Hyungjin , RAMESH, Sridhar , LING, Curtis
发明人： KIM, Hyungjin , RAMESH, Sridhar , LING, Curtis
IPC分类号： H04K1/10
CPC分类号： H04L25/0204 , H04L25/022 , H04L25/0232 , H04L25/03828
摘要： To compensate for roll-off while estimating a communication channel, an estimate of the channel is provided using a signal transmitted via the communication channel. The pilot tones positioned along the edges of the estimated channel are divided by the corresponding pilot tones of the received signal to generate a first number of ratios. An algorithm is thereafter applied to the first number of ratios to generate a second number of ratios associated with the non-pilot tones positioned along the edges of the estimated channel. Next, numbers that are inverse of the first and second number of ratios are applied to the pilot and non-pilot tones positioned along the edges of the estimated channel to compensate for the roll-offs in the estimated channel.
摘要翻译：为了在估计通信信道的同时补偿滚降，使用经由通信信道发送的信号来提供信道的估计。沿着估计信道的边缘定位的导频音被除以接收信号的对应导频音，以产生第一数量的比率。然后将算法应用于第一数量的比率以产生与沿着估计的信道的边缘定位的非导频音调相关联的第二数量的比率。接下来，与第一和第二比例数相反的数字被应用于沿估计信道的边缘定位的导频和非导频，以补偿估计信道中的滚降。

5. 发明申请

WO2010123573A1 CHANNEL-SENSITIVE POWER CONTROL 审中-公开
标题翻译：通道敏感功率控制
公开(公告)号：WO2010123573A1
公开(公告)日：2010-10-28
申请号：PCT/US2010/001208
申请日：2010-04-23
申请人： MAXLINEAR, INC. , QIU, James , RAMESH, Sridhar , YE, Sheng , LING, Curtis
发明人： QIU, James , RAMESH, Sridhar , YE, Sheng , LING, Curtis
IPC分类号： H04B7/204
CPC分类号： H04W52/0245 , H03G3/20 , H04B1/109 , H04B17/00 , H04L1/20 , H04L27/06 , H04W88/02 , Y02D70/00 , Y02D70/40
摘要： A communication receiver which applies signal processing for quantitatively estimating receive signal factors such as communication channel quality, signal characteristics, and overall system received bit error rate (BER)or packet error rate (PER) and which applies a general algorithm for mapping these estimated factors to control receiver performance and minimize power consumption.
摘要翻译：一种通信接收机，其应用信号处理，用于定量估计诸如通信信道质量，信号特征和总体系统接收误比特率（BER）或分组差错率（PER）的接收信号因子，并且其应用用于映射这些估计因子的通用算法以控制接收机性能并降低功耗。

6. 发明申请

WO2013131082A1 CONFIGURABLE, HIGHLY-INTEGRATED SATELLITE RECEIVER 审中-公开
标题翻译：可配置，高度集成的卫星接收器
公开(公告)号：WO2013131082A1
公开(公告)日：2013-09-06
申请号：PCT/US2013/028860
申请日：2013-03-04
申请人： MAXLINEAR, INC. , REDDY, Madhukar , CHANG, Glenn , GALLAGHER, Timothy , SWAROOP, Shantha Murthy Prem , LING, Curtis , PULLELA, Raja
发明人： REDDY, Madhukar , CHANG, Glenn , GALLAGHER, Timothy , SWAROOP, Shantha Murthy Prem , LING, Curtis , PULLELA, Raja
IPC分类号： H04B1/16
CPC分类号： H04H40/90 , H04N21/6143
摘要： A direct broadcast satellite (DBS) reception assembly may comprise an integrated circuit that is configurable between or among a plurality of configurations based on content requested by client devices served by the DBS reception assembly. In a first configuration, multiple satellite frequency bands may be digitized by the integrated circuit as a single wideband signal. In a second configuration, the satellite frequency bands may be digitized by the integrated circuit as a plurality of separate narrowband signals. The integrated circuit may comprise a plurality of receive paths, each of the receive chains comprising a respective one of a plurality of low noise amplifiers and a plurality of analog-to-digital converters.
摘要翻译：直接广播卫星（DBS）接收组件可以包括可以基于由DBS接收组件服务的客户端设备请求的内容在多个配置之间或之间配置的集成电路。在第一配置中，多个卫星频带可以被集成电路数字化为单个宽带信号。在第二配置中，卫星频带可以由集成电路数字化为多个单独的窄带信号。集成电路可以包括多个接收路径，每个接收链包括多个低噪声放大器和多个模数转换器中的相应一个。

7. 发明申请

WO2011100475A1 TCXO REPLACEMENT FOR GPS 审中-公开
标题翻译： TCXO替换GPS
公开(公告)号：WO2011100475A1
公开(公告)日：2011-08-18
申请号：PCT/US2011/024406
申请日：2011-02-10
申请人： MAXLINEAR, INC. , ANANDAKUMAR, Anand, K. , HYUNGJIN, Kim , LING, Curtis
发明人： ANANDAKUMAR, Anand, K. , HYUNGJIN, Kim , LING, Curtis
IPC分类号： G01S5/14
CPC分类号： H03L1/026 , G01S19/235 , H03L1/022 , H03L7/1976
摘要： To determine the level of frequency drift of a crystal oscillator as a result of a change in the its temperature, the temperature of the crystal oscillator is sensed and used together with previously stored data that includes a multitude of drift values of the frequency of the crystal oscillator each associated with a temperature of the crystal oscillator. Optionally, upon initialization of a GPS receiver in which the crystal oscillator is disposed, an initial temperature of the crystal oscillator is measured and a PLL is set to an initial frequency in association with the initial temperature. When acquisition fails in a region, the ppm region is changed. The temperature of the crystal oscillator is periodically measured and compared with the initial temperature, and the acquisition process is reset if there is a significant change in temperature. The GPS processor enters the tracking phase when acquisition is successful.
摘要翻译：为了确定晶体振荡器的温度变化导致的晶体振荡器的频率漂移，晶体振荡器的温度与先前存储的包含晶体频率漂移值的数据一起被检测并使用每个振荡器都与晶体振荡器的温度相关联。可选地，在其中设置晶体振荡器的GPS接收机初始化时，测量晶体振荡器的初始温度，并将PLL设置为与初始温度相关联的初始频率。当区域中的采集失败时，ppm区域发生变化。周期性地测量晶体振荡器的温度并将其与初始温度进行比较，如果温度有明显变化，则采集过程将被重置。采集成功后，GPS处理器进入跟踪阶段。

8. 发明申请

WO2011082182A1 GNSS RECEPTION USING DISTRIBUTED TIME SYNCHRONIZATION 审中-公开
标题翻译：使用分布式时间同步的GNSS接收
公开(公告)号：WO2011082182A1
公开(公告)日：2011-07-07
申请号：PCT/US2010/062258
申请日：2010-12-28
申请人： MAXLINEAR, INC. , LING, Curtis
发明人： LING, Curtis
IPC分类号： G01S3/02
CPC分类号： H04L7/0079 , G01S19/05 , G01S19/235 , G01S19/246 , H04B1/707
摘要： A GNSS receiver communicates with any connectivity device, such as a WiFi device that is, in turn, in communication with a wired network having access to the DTI timing. Such connectivity devices may set their timing and frame synchronization to the DTI and thus serve as Geopositiong beacons, thereby enabling the GNSS receiver to accurately determine its position. The GNSS receiver may also use the DTI timing supplied by such a network to perform relatively long integration time so as to achieve substantially improved sensitivity that is necessary for indoor Geopositioning applications. Furthermore, the GNSS data, such as satellite orbital information, may also be propagated by such devices at high speed. By providing this data to the GNSS receivers via such connectivity devices in a rapid fashion, the GNSS receivers are enabled to receive the transmitted data associated with the satellite without waiting for the GNSS transmission from the satellites.
摘要翻译： GNSS接收器与任何连接设备进行通信，诸如与具有访问DTI定时的有线网络通信的WiFi设备。这样的连接设备可以将它们的定时和帧同步设置为DTI，从而用作Geopositiong信标，从而使GNSS接收机能够准确地确定其位置。 GNSS接收机还可以使用由这种网络提供的DTI定时来执行相对较长的积分时间，以便实现对于室内地理定位应用所需的显着提高的灵敏度。此外，诸如卫星轨道信息的GNSS数据也可以由这些设备以高速传播。通过以快速方式通过这种连接装置向GNSS接收机提供该数据，GNSS接收机能够接收与卫星相关联的发射数据，而不用等待来自卫星的GNSS传输。

9. 发明申请

WO2009045966A1 I/Q CALIBRATION TECHNIQUES 审中-公开
标题翻译： I / Q校准技术
公开(公告)号：WO2009045966A1
公开(公告)日：2009-04-09
申请号：PCT/US2008/078174
申请日：2008-09-29
申请人： MAXLINEAR, INC. , LING, Curtis , YU, Shuang
发明人： LING, Curtis , YU, Shuang
IPC分类号： H04B1/26
CPC分类号： H04L27/0014 , H04B1/30
摘要： A receiver includes a static I/Q calibration block and a correlation/integration block. The static I/Q calibration block is configured to substantially eliminate mismatches between in-phase and quadrature components of a portion of the spectrum having associated I/Q mismatches that are relatively frequency-independent. The correlation/integration block is configured to substantially eliminate mismatches between the in-phase and quadrature components of portions of the spectrum having associated I/Q mismatches that are relatively frequency-dependent in accordance with a pair of signals generated by the static I/C calibration block.
摘要翻译：接收机包括静态I / Q校准块和相关/积分块。静态I / Q校准块被配置为基本上消除具有相对频率无关的相关联的I / Q失配的频谱的一部分的同相和正交分量之间的失配。相关/积分块被配置为基本上消除具有相关的I / Q失配的频谱部分的相位和正交分量之间的不匹配，这些失配与根据由静态I / C产生的一对信号相对地依赖于频率校准块。

10. 发明申请

WO2009035790A1 TUNER FOR CABLE, SATELLITE AND BROADCAST APPLICATIONS 审中-公开
标题翻译：电缆，卫星和广播应用的调谐器
公开(公告)号：WO2009035790A1
公开(公告)日：2009-03-19
申请号：PCT/US2008/072013
申请日：2008-08-01
申请人： MAXLINEAR, INC. , LING, Curtis , TIERNEY, Patrick , AKELLA, Ramakrishna
发明人： LING, Curtis , TIERNEY, Patrick , AKELLA, Ramakrishna
IPC分类号： H04B1/18
CPC分类号： H04N5/50 , H04N5/4401 , H04N5/4446 , H04N5/455 , H04N21/4263 , H04N21/43632 , H04N21/4382 , H04N21/443
摘要： A tuner includes, in part, one or mixers, one or more filters, one or more variable gain stages, one or more analog to digital converters, and a baseband processor. Each filter is responsive to an associated mixer's output signal. Each variable gain stage is responsive to an associated filter's output. Each analog-to-digital converter is adapted to convert the output signal of an associated variable gain stage to a digital signal. The baseband processor is responsive to the digital signal supplied by the analog-to-digital converter(s). The baseband processor is further configured to supply a signal to be demodulated by a processing unit external to the integrated circuit. The baseband processor performs no or a fraction of the required demodulation functions. The processing unit may be a central processing unit or a graphical processing unit.
摘要翻译：调谐器部分地包括一个或者混频器，一个或多个滤波器，一个或多个可变增益级，一个或多个模数转换器和基带处理器。每个滤波器响应于相关混频器的输出信号。每个可变增益级都响应相关过滤器的输出。每个模拟 - 数字转换器适于将相关联的可变增益级的输出信号转换为数字信号。基带处理器响应于由模数转换器提供的数字信号。基带处理器还被配置为提供要由集成电路外部的处理单元解调的信号。基带处理器执行所需解调功能的任何部分或一部分。处理单元可以是中央处理单元或图形处理单元。

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