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1. 发明申请

WO2013016395A2 DETECTION AND MITIGATION OF INTERFERENCE IN A RECEIVER 审中-公开
标题翻译：接收器中干扰的检测和缓解
公开(公告)号：WO2013016395A2
公开(公告)日：2013-01-31
申请号：PCT/US2012048083
申请日：2012-07-25
申请人： SPREADTRUM COMM USA INC , HAUB DAVID , XU ZHIGANG , MALONE JARRETT
发明人： HAUB DAVID , XU ZHIGANG , MALONE JARRETT
IPC分类号： H04B1/10
CPC分类号： H04B1/1027 , H03G3/3078 , H04B1/123 , H04B17/29 , H04B17/327 , H04L25/03057 , H04L43/16
摘要： A novel receiver architecture optimizes receiver performance in the presence of interference. In various embodiments, power estimation circuits are used with variable selectivity to determine the exact nature of the interference and to optimize the performance correspondingly. The variable selectivity is achieved using stages of filtering with progressively narrower bandwidths. Also, the actual method of optimizing the receiver performance is novel compared to the prior art in that the gain settings and the baseband filter order (stages to be used) will be optimized based on the nature of the interference as determined by the power detector measurements. For a device such as a cellular phone that operates in a dynamic and changing environment where interference is variable, embodiments advantageously provide the capability to modify the receiver's operational state depending on the interference.
摘要翻译：一种新颖的接收机架构在存在干扰的情况下优化了接收机性能。在各种实施例中，使用具有可变选择性的功率估计电路来确定干扰的确切性质并相应地优化性能。可变选择性通过逐步变窄的带宽进行滤波的阶段来实现。此外，与现有技术相比，优化接收机性能的实际方法是新颖的，因为增益设置和基带滤波器顺序（待使用的级）将基于由功率检测器测量确定的干扰的性质来优化。对于在干扰可变的动态和变化环境中操作的诸如蜂窝电话的设备，实施例有利地提供根据干扰来修改接收机的操作状态的能力。

2. 发明申请

WO2004070985A2 REDUCED CROSSMODULATION OPERATION OF A MULTIMODE COMMUNICATION DEVICE 审中-公开
标题翻译：多模通信设备的减少交叉运算
公开(公告)号：WO2004070985A2
公开(公告)日：2004-08-19
申请号：PCT/US2004001287
申请日：2004-01-20
申请人： MOTOROLA INC , HAUB DAVID , KURBY CHRISTOPHER , MACH RICHARD , VANNATTA LOUIS
发明人： HAUB DAVID , KURBY CHRISTOPHER , MACH RICHARD , VANNATTA LOUIS
IPC分类号： H04B1/10 , H04L
CPC分类号： H04B1/1027 , H04B1/109
摘要： A method to reduce crossmodulation in a multimode radio communication device with a transmitter, a receiver, and a second receiver (400) that operates in a receiver channel bandwidth (402) includes a step of measuring a first signal strength in the receiver channel bandwidth (404), a second signal strength outside of the receiver channel bandwidth (406), and a power level of the transmitter. A next step (408) includes determining a signal-to-crossmodulation interference ratio (SCMIR). A next step (410) includes calculating a SCMIR threshold. A next step (412) includes comparing the ratio to the threshold. A next step (416,420) includes increasing the linearity of the receiver if the ratio is less than the threshold.
摘要翻译：一种减少在具有在接收机信道带宽（402）中操作的发射机，接收机和第二接收机（400）的多模式无线电通信设备中的交叉调制的方法包括测量接收机信道带宽中的第一信号强度 404），在接收机信道带宽（406）之外的第二信号强度，以及发射机的功率电平。下一步骤（408）包括确定信号到交叉调制干扰比（SCMIR）。下一步骤（410）包括计算SCMIR阈值。下一步骤（412）包括将该比率与阈值进行比较。下一步骤（416,420）包括如果比率小于阈值则增加接收机的线性度。

3. 发明申请

WO2005036759A3 A MULTIMODE RECEIVER AND METHOD FOR CONTROLLING SIGNAL INTERFERENCE 审中-公开
标题翻译：一种用于控制信号干扰的多模接收器和方法
公开(公告)号：WO2005036759A3
公开(公告)日：2006-10-05
申请号：PCT/US2004032279
申请日：2004-10-01
申请人： ARE MOTOROLA INC A CORP OF THE , MACH RICHARD E , HAUB DAVID , KURBY CHRISTOPHER N , VANNATTA LOUIS J
发明人： MACH RICHARD E , HAUB DAVID , KURBY CHRISTOPHER N , VANNATTA LOUIS J
IPC分类号： H04B1/10 , H04B1/40
CPC分类号： H04B1/406 , H04B1/1027
摘要： A multimode wireless receiver circuit (10) includes multi-receiver control and interference detection logic (50) and least two separate receivers: a first receiver (20) associated with a first radio access technology and a second receiver (30) associated with a second radio access technology. The multi-receiver control and interference detection logic (50) simultaneously controls the second receiver (30) to detect an interference blocker signal (100), while the first receiver (20) receives at least a portion of the wireless signal (80) and the interference product signal (90). In response to the second receiver (30) detecting the interference blocker signal (100), the multi-receiver control and interference detection logic (50) adjusts at least one operating condition of the first receiver (20) such that the interference product signal (90) received by the first receiver (20) is reduced.
摘要翻译：多模式无线接收器电路（10）包括多接收器控制和干扰检测逻辑（50）以及至少两个单独的接收器：与第一无线电接入技术相关联的第一接收机（20）和与第二无线接入技术相关联的第二接收机（30）无线接入技术。多接收器控制和干扰检测逻辑（50）同时控制第二接收器（30）以检测干扰阻断信号（100），而第一接收器（20）接收无线信号（80）的至少一部分，以及干扰产物信号（90）。响应于第二接收机（30）检测干扰阻断信号（100），多接收机控制和干扰检测逻辑（50）调整第一接收机（20）的至少一个操作状态，使得干扰产物信号（ 90）由第一接收器（20）接收。

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