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1. 发明申请

US20080039042A1 TECHNIQUES FOR CONTROLLING OPERATION OF CONTROL LOOPS IN A RECEIVER 有权
标题翻译：用于控制接收器中控制杆操作的技术
公开(公告)号：US20080039042A1
公开(公告)日：2008-02-14
申请号：US11560802
申请日：2006-11-16
申请人： Steven Ciccarelli , Brian Banister , Brian George , Soon-Seng Lau , Prasad Gudem , Arun Raghupathy
发明人： Steven Ciccarelli , Brian Banister , Brian George , Soon-Seng Lau , Prasad Gudem , Arun Raghupathy
IPC分类号： H04B7/00
CPC分类号： H04B1/109
摘要： Techniques for controlling operation of control loops in a receiver are described. The operation of at least one control loop is modified in conjunction with a change in operating state, which may correspond to a change in linearity state, gain state, operating frequency, antenna configuration, etc. A change in linearity state may occur when jammers are detected and may cause bias current of analog circuit blocks to be adjusted. The at least one control loop to be modified may include a DC loop, an AGC loop, etc. The operation of a control loop may be modified by disabling the control loop or changing its time constant prior to changing operating state, waiting a predetermined amount of time to allow the receiver to settle, and enabling the control loop or restoring its time constant after waiting the predetermined amount of time.
摘要翻译：描述了用于控制接收机中的控制环路的操作的技术。结合操作状态的改变来修改至少一个控制回路的操作，其可以对应于线性状态，增益状态，操作频率，天线配置等的改变。线性状态的变化可能发生在干扰器并且可能导致模拟电路块的偏置电流被调整。要修改的至少一个控制环路可以包括DC环路，AGC环路等。可以通过在改变操作状态之前禁用控制环路或改变其时间常数来修改控制环路的操作，等待预定量的时间以允许接收机安定，并且在等待预定时间量之后启用控制环路或恢复其时间常数。

2. 发明申请

US20060109939A1 Noise reduction filtering in a wireless communication system 有权
标题翻译：无线通信系统中的降噪滤波
公开(公告)号：US20060109939A1
公开(公告)日：2006-05-25
申请号：US10994012
申请日：2004-11-19
申请人： Steven Ciccarelli , Arun Raghupathy , Brian Banister
发明人： Steven Ciccarelli , Arun Raghupathy , Brian Banister
IPC分类号： H04B1/10
CPC分类号： H03H17/0009 , H03G3/3052 , H04B1/1036 , H04B1/707
摘要： A technique for noise reduction in a wireless communication system uses controllable bandwidth filters (120) to filter a received signal. In a typical implementation, the filters (120) are used at baseband frequencies. A measurement (RSSI) is indicative of the strength of the received signal. A control circuit (144) generates a control signal (146) to control the bandwidth of the filters (120). If the received signal strength is above a first threshold, a wider bandwidth may be used for the filters (120). If the received signal is below a second threshold, the control circuit (144) generates the control signal (146) to set the filters (120) to a more narrow bandwidth. The system (100) may also be used with digital filters (150, 152) following digitization by analog to digital converters (ADCs) (130, 132). The system (100) is particularly well-suited for operation with noise-shaped ADCs (130, 132), such as Delta-Sigma converters.
摘要翻译：用于无线通信系统中降噪的技术使用可控带宽滤波器（120）来对接收到的信号进行滤波。在典型的实现中，滤波器（120）用于基带频率。测量（RSSI）表示接收信号的强度。控制电路（144）产生控制信号（146）以控制滤波器（120）的带宽。如果接收信号强度高于第一阈值，则可以对滤波器（120）使用更宽的带宽。如果接收信号低于第二阈值，则控制电路（144）产生控制信号（146）以将滤波器（120）设置为更窄的带宽。在数模转换器（ADC）（130,132）之后，系统（100）也可以与数字滤波器（150,152）一起使用。系统（100）特别适用于具有噪声形状的ADC（130,132）（诸如Δ-Σ转换器）的操作。

3. 发明申请

US20060109064A1 Tunable surface acoustic wave resonators 有权
公开(公告)号：US20060109064A1
公开(公告)日：2006-05-25
申请号：US11227632
申请日：2005-09-14
申请人： Stanley Toncich , Aracely Williams , Raymond Wallace , Soon-Seng Lau , Steven Ciccarelli
发明人： Stanley Toncich , Aracely Williams , Raymond Wallace , Soon-Seng Lau , Steven Ciccarelli
IPC分类号： H03H9/72 , H03H9/64
CPC分类号： H03H9/76 , H03H7/12 , H03H9/25 , H03H9/6409 , H03H9/725
摘要： A tunable SAW resonator circuit is disclosed. The tunable SAW resonator circuit includes a SAW resonator having a Q, a resistor coupled to the SAW resonator to reduce the Q, and a tuning component coupled to the SAW resonator to tune the SAW resonator. A method to tune the SAW resonator is also disclosed. The SAW resonator may be tuned by applying a control signal to the tuning component.

4. 发明授权

US08243864B2 Noise reduction filtering in a wireless communication system 有权
标题翻译：无线通信系统中的降噪滤波
公开(公告)号：US08243864B2
公开(公告)日：2012-08-14
申请号：US10994012
申请日：2004-11-19
申请人： Steven Ciccarelli , Arun Raghupathy , Brian C. Banister
发明人： Steven Ciccarelli , Arun Raghupathy , Brian C. Banister
IPC分类号： H04B1/10
CPC分类号： H03H17/0009 , H03G3/3052 , H04B1/1036 , H04B1/707
摘要： A technique for noise reduction in a wireless communication system uses controllable bandwidth filters (120) to filter a received signal. In a typical implementation, the filters (120) are used at baseband frequencies. A measurement (RSSI) is indicative of the strength of the received signal. A control circuit (144) generates a control signal (146) to control the bandwidth of the filters (120). If the received signal strength is above a first threshold, a wider bandwidth may be used for the filters (120). If the received signal is below a second threshold, the control circuit (144) generates the control signal (146) to set the filters (120) to a more narrow bandwidth. The system (100) may also be used with digital filters (150, 152) following digitization by analog to digital converters (ADCs) (130, 132). The system (100) is particularly well-suited for operation with noise-shaped ADCs (130, 132), such as Delta-Sigma converters.
摘要翻译：用于无线通信系统中降噪的技术使用可控带宽滤波器（120）来对接收到的信号进行滤波。在典型的实现中，滤波器（120）用于基带频率。测量（RSSI）表示接收信号的强度。控制电路（144）产生控制信号（146）以控制滤波器（120）的带宽。如果接收信号强度高于第一阈值，则可以对滤波器（120）使用更宽的带宽。如果接收信号低于第二阈值，则控制电路（144）产生控制信号（146）以将滤波器（120）设置为更窄的带宽。在数模转换器（ADC）（130,132）之后，系统（100）也可以与数字滤波器（150,152）一起使用。系统（100）特别适用于具有噪声形状的ADC（130,132）（诸如Δ-Σ转换器）的操作。

5. 发明申请

US20050134336A1 Adjustable-bias VCO 审中-公开
标题翻译：可调偏压VCO
公开(公告)号：US20050134336A1
公开(公告)日：2005-06-23
申请号：US10995985
申请日：2004-11-19
申请人： Jeremy Goldblatt , Hee Ahn , Steven Ciccarelli
发明人： Jeremy Goldblatt , Hee Ahn , Steven Ciccarelli
IPC分类号： H04B1/10 , H04B1/707 , H03L7/06
CPC分类号： H03L7/18 , H03B5/1218 , H03B5/1231 , H03B5/1243 , H03L5/00 , H03L7/099 , H03L2207/06 , H04B1/109 , H04B1/71
摘要： A dynamically programmable RF receiver includes an adjustable bias voltage-controlled oscillator (ABVCO) that operates in both low-interference and high-interference modes. The ABVCO uses a drive current to generate an output signal whose frequency varies based on a control voltage. When a jammer detector detects an interference signal, a state machine adjusts the ABVCO from the low-interference mode to the high-interference mode. Reciprocal mixing between the interference signal and phase noise in the output signal is reduced in the high-interference mode by increasing the drive current to reduce the phase noise. The ABVCO switches to the high-interference mode when a bias control circuit sends a bias control signal to the ABVCO, causing the ABVCO to generate the output signal using a greater amount of drive current. A programmable register contains a control value that determines the magnitude of the bias control signal and ultimately the magnitude of the drive current.
摘要翻译：动态可编程RF接收器包括一个可调低压干扰和高干扰模式的可调偏置压控振荡器（ABVCO）。 ABVCO使用驱动电流来产生其频率根据控制电压而变化的输出信号。当干扰检测器检测到干扰信号时，状态机将ABVCO从低干扰模式调整为高干扰模式。通过增加驱动电流以降低相位噪声，可以在高干扰模式下降低输出信号中的干扰信号与相位噪声之间的相互混合。当偏置控制电路向ABVCO发送偏置控制信号时，ABVCO切换到高干扰模式，导致ABVCO使用更大的驱动电流产生输出信号。可编程寄存器包含一个控制值，用于确定偏置控制信号的幅度，最终确定驱动电流的大小。

6. 发明申请

US20060189346A1 Apparatus and method for improving paging performance while simultaneously operating in different types of communication networks 有权
标题翻译：用于在不同类型的通信网络中同时操作时改善寻呼性能的装置和方法
公开(公告)号：US20060189346A1
公开(公告)日：2006-08-24
申请号：US11357667
申请日：2006-02-17
申请人： Simon Turner , Abhay Joshi , Arthur Neufeld , Serguei Glazko , Steven Ciccarelli , Gregory Lie
发明人： Simon Turner , Abhay Joshi , Arthur Neufeld , Serguei Glazko , Steven Ciccarelli , Gregory Lie
IPC分类号： H04M1/00
CPC分类号： H04W68/02 , H04W68/00 , H04W88/06
摘要： A system and method of improving wireless communications between a wireless communication device and both a first network supporting voice and data services and a second network supporting packet data services. The method comprises providing the WCD with a primary transceiver and a secondary receiver for conducting wireless communications in both a simultaneous-mode and a hybrid-mode; performing simultaneous-mode-to-hybrid-mode and hybrid-mode-to-simultaneous-mode transitions based on a performance metric; and evaluating the performance metric to determine whether to perform the mode transitions. In the simultaneous-mode, the primary transceiver conducts wireless communications in the second network and the secondary receiver conducts wireless communications in the first network. In the hybrid-mode, the primary transceiver use is time multiplexed during all of the first and second networks communications combinations. When the metric measures below a threshold, the WCD reverts from one mode to another mode at paging slot wake-ups.
摘要翻译：一种改善无线通信设备与支持语音和数据服务的第一网络与支持分组数据服务的第二网络的无线通信的系统和方法。该方法包括向WCD提供主收发器和用于在同时模式和混合模式中进行无线通信的辅助接收机; 基于性能度量执行同步模式到混合模式和混合模式到同步模式转换; 并评估性能度量以确定是否执行模式转换。在同步模式中，主收发器在第二网络中进行无线通信，次接收机在第一网络中进行无线通信。在混合模式中，主收发器使用在所有第一和第二网络通信组合期间被时分复用。当度量低于阈值时，WCD在寻呼时隙唤醒时从一种模式恢复到另一种模式。

7. 发明申请

US20060209801A1 Apparatus and method for allowing page monitoring of a communication system during traffic/broadcast channel operation without reducing traffic performance 有权
标题翻译：用于在业务/广播信道操作期间允许通信系统的页面监视而不降低业务性能的装置和方法
公开(公告)号：US20060209801A1
公开(公告)日：2006-09-21
申请号：US11357265
申请日：2006-02-17
申请人： Abhay Joshi , Arthur Neufeld , Steven Ciccarelli , Simon Turner , Gregory Lie , Serguei Glazko
发明人： Abhay Joshi , Arthur Neufeld , Steven Ciccarelli , Simon Turner , Gregory Lie , Serguei Glazko
IPC分类号： H04L12/66
CPC分类号： H04W88/06 , H04W52/0216 , H04W52/0258 , H04W56/00 , H04W68/00 , Y02D70/164
摘要： A system and method of conducting wireless communications between a wireless communication device (WCD) and both a first network (e.g., IS-2000) supporting voice and data services and a second network (e.g., IS-856) supporting packet data services. The method comprises providing the WCD with a primary transceiver and a secondary receiver for conducting wireless communications in a spatial diversity for the second network traffic or broadcast; disabling the secondary receiver and spatial diversity before a paging slot or 1x system acquisition and synchronization attempts; tuning the secondary receiver to a first network carrier frequency to perform first network activities; and retuning the secondary receiver to a second network carrier frequency for spatial diversity after performing the first network activities. The first network activities may include pilot set maintenance, overhead message maintenance, page match detection, or 1x system acquisition and synchronization attempts.
摘要翻译：在无线通信设备（WCD）和支持语音和数据业务的第一网络（例如IS-2000）和支持分组数据业务的第二网络（例如，IS-856）之间进行无线通信的系统和方法。该方法包括向WCD提供主收发器和用于对第二网络业务或广播进行空间分集的无线通信的辅助接收机; 在寻呼时隙或1x系统采集和同步尝试之前禁用辅助接收机和空间分集; 将次级接收机调谐到第一网络载波频率以执行第一网络活动; 以及在执行所述第一网络活动之后将所述辅助接收机重新调谐到第二网络载波频率用于空间分集。第一个网络活动可能包括导频集维护，开销消息维护，页面匹配检测或1x系统采集和同步尝试。

8. 发明申请

US20060281486A1 Method and apparatus for receiving data and paging from multiple wireless communication systems 有权
标题翻译：用于从多个无线通信系统接收数据和寻呼的方法和装置
公开(公告)号：US20060281486A1
公开(公告)日：2006-12-14
申请号：US11432832
申请日：2006-05-11
申请人： Francis Ngai , Alex Tu , Serguei Glazko , Steven Ciccarelli
发明人： Francis Ngai , Alex Tu , Serguei Glazko , Steven Ciccarelli
IPC分类号： H04M1/00
CPC分类号： H04W88/06 , H04W52/0245 , H04W68/00 , H04W68/025 , Y02D70/1222 , Y02D70/1242
摘要： Techniques for operating two receivers to receive data and paging from two systems are described. A primary receiver is associated with better performance than a secondary receiver under poor RF conditions. The two receivers may be operated in either a hybrid mode in which the primary receiver is used to receive paging or a simultaneous mode in which the second receiver is used to receive paging. One of the modes may be selected for use based on RF conditions, received power, demodulation metrics, and/or other criteria. In one design, a mode is selected based on the received power and one or more thresholds. In another design, the hybrid mode is selected for poor RF conditions and, for good RF conditions, the hybrid or simultaneous mode is selected based on received power.
摘要翻译：描述了用于操作两个接收机以从两个系统接收数据和寻呼的技术。在较差的RF条件下，主接收机具有比次级接收机更好的性能。两个接收机可以以主接收机用于接收寻呼的混合模式或其中第二接收机用于接收寻呼的同时模式来操作。可以基于RF条件，接收功率，解调度量和/或其他标准来选择一种模式来使用。在一种设计中，基于接收功率和一个或多个阈值来选择模式。在另一种设计中，为差的RF条件选择混合模式，并且对于良好的RF条件，基于接收功率选择混合或同时模式。

9. 发明申请

US20060009177A1 Low-power wireless diversity receiver with multiple receive paths 有权
标题翻译：具有多个接收路径的低功率无线分集接收机
公开(公告)号：US20060009177A1
公开(公告)日：2006-01-12
申请号：US10993011
申请日：2004-11-18
申请人： Charles Persico , Kevin Gard , Gurkanwal Sahota , Shinichi Miyazaki , Steven Ciccarelli
发明人： Charles Persico , Kevin Gard , Gurkanwal Sahota , Shinichi Miyazaki , Steven Ciccarelli
IPC分类号： H04B7/08 , H03D5/00
CPC分类号： H04K3/224 , H04B1/109 , H04B7/082
摘要： A low-power diversity receiver includes at least two receive paths, each of which is designated as a primary or secondary receive path. A primary receive path is compliant with system requirements (e.g., IS-98D requirements). A secondary receive path is not fully compliant with the system requirements and is designed for lower power, less area, and lower cost than the primary receive path. For a multi-antenna receiver, the two receive paths may be used to simultaneously process two received signals from two antennas. For a single-antenna receiver, either the primary or secondary receive path is selected, e.g., depending on whether or not large amplitude “jammers” are detected, to process a single input signal from one antenna. The receiver may include additional receive paths for additional frequency bands and/or GPS.
摘要翻译：低功率分集接收器包括至少两个接收路径，每个接收路径被指定为主要或次要接收路径。主要接收路径符合系统要求（例如，IS-98D要求）。次要接收路径不完全符合系统要求，并且设计为比主接收路径更低的功率，更少的面积和更低的成本。对于多天线接收机，两个接收路径可以用于同时处理来自两个天线的两个接收信号。对于单天线接收机，例如，取决于是否检测到大的振幅“干扰”，选择主要或次要接收路径来处理来自一个天线的单个输入信号。接收机可以包括用于附加频带和/或GPS的附加接收路径。

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