公开(公告)号：US08306157B2

公开(公告)日：2012-11-06

申请号：US12831201

申请日：2010-07-06

Applicant: Kishore Seendripu ,  Raymond Montemayor ,  Sheng Ye ,  Glenn Chang ,  Curtis Ling

Inventor： Kishore Seendripu ,  Raymond Montemayor ,  Sheng Ye ,  Glenn Chang ,  Curtis Ling

IPC: H03D3/22

CPC classification number: H04L5/06 ,  H03D3/008 ,  H03D3/009 ,  H03D7/166 ,  H04B1/30

Abstract: A receiver can be configured to include an RF front end that is configured to downconvert a received signal to a baseband signal or a low Intermediate Frequency (IF) signal. The receiver can downconvert the desired signal from an RF frequency in the presence of numerous interference sources to a baseband or low IF signal for filtering and channel selection. The filtered baseband or low IF signal can be converted to a digital representation. The digital representation of the signal can be upconverted in the digital domain to a programmable IF frequency. The digital IF signal can be converted to an analog IF signal that can be processed by legacy hardware.

Abstract translation: 接收机可以被配置为包括被配置为将接收到的信号下变频为基带信号或低中频（IF）信号的RF前端。 接收机可以在存在多个干扰源的情况下将来自RF频率的期望信号下变频到用于滤波和信道选择的基带或低IF信号。 滤波后的基带或低IF信号可以转换为数字表示。 信号的数字表示可以在数字域中上转换成可编程的中频。 数字IF信号可以转换为可由传统硬件处理的模拟IF信号。

公开(公告)号：US20110309976A1

公开(公告)日：2011-12-22

申请号：US12965805

申请日：2010-12-10

Applicant: Maxime Leclercq ,  Ioannis Spyropoulos ,  Anand K. Anandakumar ,  Curtis Ling

Inventor： Maxime Leclercq ,  Ioannis Spyropoulos ,  Anand K. Anandakumar ,  Curtis Ling

IPC: G01S19/42 ,  G01S19/34

CPC classification number: G01S19/34

Abstract: A GNSS system operates intermittently and has adaptive activity and sleep time in order to reduce power consumption. The GNSS system provides an enhanced estimate of its position in the absence of GNSS signals of sufficient strength. The user's activity and behavior is modeled and used to improve performance, response time, and power consumption of the GNSS system. The user model is based, in part, on the received GNSS signals, a history of the user's positions, velocity, time, and inputs from other sensors disposed in the GNSS system, as well as data related to the network. During each activity time, the GNSS receiver performs either tracking, or acquisition followed by tracking. The GNSS receiver supports both normal acquisition as well as low-power acquisition.

Abstract translation: GNSS系统间歇运行，具有自适应活动和休眠时间，以降低功耗。 在没有足够强度的GNSS信号的情况下，GNSS系统提供对其位置的增强估计。 用户的活动和行为被建模并用于提高GNSS系统的性能，响应时间和功耗。 用户模型部分地基于所接收的GNSS信号，用户位置的历史，速度，时间以及设置在GNSS系统中的其他传感器的输入以及与网络有关的数据。 在每个活动时间内，GNSS接收机执行跟踪或采集跟踪跟踪。 GNSS接收机支持正常采集以及低功耗采集。

公开(公告)号：US20110291882A1

公开(公告)日：2011-12-01

申请号：US12954603

申请日：2010-11-24

Applicant: Brendan Walsh ,  Sridhar Ramesh ,  Curtis Ling

Inventor： Brendan Walsh ,  Sridhar Ramesh ,  Curtis Ling

IPC: G01S19/46 ,  G01S5/02

CPC classification number: G01S19/48 ,  G01S19/46 ,  H04W64/00 ,  H04W84/12 ,  H04W84/18

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20110285912A1

公开(公告)日：2011-11-24

申请号：US12952138

申请日：2010-11-22

Applicant: Chengzhi Zhou ,  Curtis Ling

Inventor： Chengzhi Zhou ,  Curtis Ling

IPC: H04N9/67

CPC classification number: H04N5/50 ,  H04N5/44 ,  H04N5/60 ,  H04N21/4383

Abstract: A filter for processing a digital TV composite signal having a video component and an audio component includes a digital video filter and a digital audio filter. The digital video filter includes a lowpass finite impulse response (FIR) filter, an up-mixer, an asymmetric filter for compensating a Nyquist slope of the video component, and a down-mixer connected in this order. The digital audio filter includes an audio down-mixer, a decimated FIR filter, an enhancing FIR filter, an interpolated FIR filter, and an audio up-mixer. These components are connected in series. Optionally, the decimating FIR filter is decimated by an integer decimation factor M, and the interpolated FIR filter is interpolated by an integer factor N. The integer M and N may have the same value.

Abstract translation: 用于处理具有视频分量和音频分量的数字TV复合信号的滤波器包括数字视频滤波器和数字音频滤波器。 数字视频滤波器包括低通有限脉冲响应（FIR）滤波器，上混频器，用于补偿视频分量的奈奎斯特斜率的非对称滤波器以及按顺序连接的下混频器。 数字音频滤波器包括音频下混频器，抽取FIR滤波器，增强型FIR滤波器，内插FIR滤波器和音频上变频器。 这些组件串联连接。 可选地，抽取FIR滤波器被抽取整数抽取因子M，并且内插FIR滤波器被内插整数因子N.整数M和N可以具有相同的值。

公开(公告)号：US20110170587A1

公开(公告)日：2011-07-14

申请号：US12905434

申请日：2010-10-15

Applicant: Hyungjin Kim ,  Sridhar Ramesh ,  Curtis Ling

Inventor： Hyungjin Kim ,  Sridhar Ramesh ,  Curtis Ling

IPC: H04L27/01

CPC classification number: H04L25/0204 ,  H04L25/022 ,  H04L25/0232 ,  H04L25/03828

Abstract: 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.

Abstract translation: 为了在估计通信信道的同时补偿滚降，使用通过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，将与第一和第二比例数相反的数字应用于沿估计信道的边缘定位的导频和非导频音，以补偿估计信道中的滚降。

公开(公告)号：US20110081877A1

公开(公告)日：2011-04-07

申请号：US12831152

申请日：2010-07-06

Applicant: Kishore Seendripu ,  Raymond Montemayor ,  Curtis Ling ,  Glenn Chang ,  Sheng Ye

Inventor： Kishore Seendripu ,  Raymond Montemayor ,  Curtis Ling ,  Glenn Chang ,  Sheng Ye

IPC: H04B1/26 ,  H04B1/18

CPC classification number: H04L27/3863 ,  H03D3/009 ,  H04B1/1036 ,  H04B1/30

Abstract: A dual conversion receiver architecture that converts a radio frequency signal to produce a programmable intermediate frequency whose channel bandwidth and frequency can be changed using variable low-pass filtering to accommodate multiple standards for television and other wireless standards. The dual conversion receiver uses a two stage frequency translation and continual DC offset removal. The dual conversion receiver can be completely implemented on an integrated circuit with no external adjustments.

Abstract translation: 一种双转换接收器架构，其转换射频信号以产生可编程中频，其可以使用可变低通滤波来改变其通道带宽和频率，以适应电视和其他无线标准的多种标准。 双转换接收机使用两级频率转换和连续DC偏移去除。 双转换接收器可以在没有外部调整的集成电路上完全实现。

公开(公告)号：US20100003943A1

公开(公告)日：2010-01-07

申请号：US12432666

申请日：2009-04-29

Applicant: Kishore Seendripu ,  Raymond Montemayor ,  Sheng Ye ,  Glenn Chang ,  Curtis Ling

Inventor： Kishore Seendripu ,  Raymond Montemayor ,  Sheng Ye ,  Glenn Chang ,  Curtis Ling

IPC: H04B1/26

CPC classification number: H04B1/26 ,  H03D3/007 ,  H03D3/008 ,  H03D3/009 ,  H03D7/14 ,  H03D7/1441 ,  H03D7/1458 ,  H03D7/1475 ,  H03D7/165 ,  H03D7/166 ,  H03D2200/0086 ,  H03H11/22 ,  H04B1/10 ,  H04B1/109 ,  H04B1/12 ,  H04B1/30 ,  H04B15/00 ,  H04J1/18 ,  H04L27/34

Abstract: Receiver architectures and methods of processing harmonic rich input signals employing harmonic suppression mixers are disclosed herein. The disclosed receivers, mixers, and methods enable a receiver to achieve the advantages of switching mixers while greatly reducing the mixer response to the undesired harmonics. A harmonic mixer can include a plurality of mixers coupled to an input signal. A plurality of phases of a local oscillator signal can be generated from a single local oscillator output. Each of the phases can be used to drive an input of one of the mixers. The mixer outputs can be combined to generate a frequency converted output that has harmonic rejection.

Abstract translation: 本文公开了采用谐波抑制混频器处理谐波丰富输入信号的接收机架构和方法。 所公开的接收机，混频器和方法使得接收机能够实现切换混频器的优点，同时大大降低了混频器对不需要的谐波的响应。 谐波混频器可以包括耦合到输入信号的多个混频器。 可以从单个本地振荡器输出产生本地振荡器信号的多个相位。 每个相都可用于驱动混合器之一的输入。 混频器输出可以组合以产生具有谐波抑制的频率转换输出。

公开(公告)号：US07532870B2

公开(公告)日：2009-05-12

申请号：US11106061

申请日：2005-04-13

Applicant: Curtis Ling

Inventor： Curtis Ling

IPC: H04B1/10

CPC classification number: H04L27/3863 ,  H03D3/009 ,  H04B1/1036 ,  H04B1/30

Abstract: A DC offset removal method and apparatus for use with a receiver, such as a direct conversion receiver. The DC offset error can be upconverted to an intermediate frequency where it appears as a DC offset spurious signal. The DC offset spurious signal can be amplified and downconverted back to a DC signal. The DC signal can be used to determine an offset correction value that can be coupled to a signal path to substantially remove the DC offset error. An embodiment is disclosed that allows a single module to be used to remove the static and dynamic DC offset error components. Another embodiment includes separate portions for the removal of static and dynamic offset errors.

Abstract translation: 一种用于与诸如直接转换接收器的接收器一起使用的DC偏移去除方法和装置。 DC偏移误差可以上变频到中间频率，其中它显示为直流偏移寄生信号。 DC偏置寄生信号可以放大并下变频回DC信号。 DC信号可以用于确定可以耦合到信号路径以实质上去除DC偏移误差的偏移校正值。 公开了允许单个模块用于去除静态和动态DC偏移误差分量的实施例。 另一个实施例包括用于去除静态和动态偏移误差的分离部分。

公开(公告)号：US20080109376A1

公开(公告)日：2008-05-08

申请号：US11928203

申请日：2007-10-30

Applicant: Brendan Walsh ,  Curtis Ling

Inventor： Brendan Walsh ,  Curtis Ling

IPC: G06Q30/00

CPC classification number: H04N21/25435 ,  G06Q30/02 ,  G06Q30/0201 ,  G06Q30/0241 ,  G06Q30/0264 ,  G06Q30/0273 ,  G06Q50/188 ,  H04N21/812

Abstract: A method for targeted advertisement includes storing a profile tag associated with each user in a device maintained by that user. Each profile tag includes the demographic information of its associated user. A multitude of target tags are also transmitted to the users. Each target tag is associated with an advertiser and includes the demographic information of the users. The advertisements and their corresponding target tags are transmitted and cached in the devices maintained by the users. The number of matches between the target tags and the user profiles are supplied to their respective advertisers. The advertisers use the matching number to modify the prices they are willing to offer for the commercial break. The target tags include information that is used to select one of the cached advertisement for playing during the commercial break.

Abstract translation: 一种用于目标广告的方法包括将与每个用户相关联的简档标签存储在由该用户维护的设备中。 每个配置文件标签包括其关联用户的人口统计信息。 许多目标标签也传送给用户。 每个目标标签与广告客户相关联，并包括用户的人口统计信息。 广告及其相应的目标标签被传送和缓存在由用户维护的设备中。 目标标签和用户资料之间的匹配数量被提供给其各自的广告商。 广告客户使用匹配号码修改他们愿意为商业休息提供的价格。 目标标签包括用于选择在商业中断期间播放的缓存广告之一的信息。

公开(公告)号：US20070126508A1

公开(公告)日：2007-06-07

申请号：US11464162

申请日：2006-08-11

Applicant: Raymond Montemayor ,  Curtis Ling

Inventor： Raymond Montemayor ,  Curtis Ling

IPC: H03G3/00

CPC classification number: H03G3/3052

Abstract: Linear wide dynamic range variable gain amplifiers can be configured using a variable gain amplifier having an abbreviated gain control range in combination with a discrete attenuator controlled to select an attenuation from a predetermined set of attenuation values. The variable gain amplifier is configured to provide substantially linear gain control over the abbreviated gain control range, where the abbreviated gain control range is less than a total desired gain control range. The difference between adjacent attenuation values in the set of attenuation values is configured to be approximately less than or equal to the abbreviated gain control range.

Abstract translation: 线性宽动态范围可变增益放大器可以使用具有缩写增益控制范围的可变增益放大器与被控制为从预定衰减值集合中选择衰减的离散衰减器组合来配置。 可变增益放大器被配置为在缩写增益控制范围上提供基本线性增益控制，其中缩写增益控制范围小于总期望增益控制范围。 该组衰减值中的相邻衰减值之间的差被配置为近似小于或等于缩写增益控制范围。