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1. 发明申请

WO2009137619A2 FREQUENCY SPUR DETECTION AND SUPPRESSION 审中-公开
标题翻译：频率检测和抑制
公开(公告)号：WO2009137619A2
公开(公告)日：2009-11-12
申请号：PCT/US2009043037
申请日：2009-05-06
申请人： QUALCOMM INC , FILIPOVIC DANIEL FRED , O'SHEA HELENA DEIRDRE , KOMNINAKIS CHRISTOS , GENG JIFENG
发明人： FILIPOVIC DANIEL FRED , O'SHEA HELENA DEIRDRE , KOMNINAKIS CHRISTOS , GENG JIFENG
IPC分类号： H04B1/10
CPC分类号： H04B1/1036 , H04B1/7107
摘要： Techniques for identifying and suppressing frequency spurs in a signal are disclosed. In an embodiment, an incoming signal is rotated by a frequency related to a spur frequency, and an estimate of the content of the rotated signal is derived. The estimate may be subtracted from the rotated incoming signal, and the result de-rotated by the spur frequency. In an embodiment, the incoming signal may be rotated such that the spur is centered at DC. In an alternative embodiment, the estimate may be de-rotated before being subtracted from the original incoming signal. Techniques for addressing multiple spurs using serial and parallel architectures are disclosed. Further disclosed are techniques for searching for the presence of spurs in an incoming signal, and tracking spur frequencies over time.
摘要翻译：公开了用于识别和抑制信号中的频率杂散的技术。在一个实施例中，输入信号被旋转与杂散频率相关的频率，并且导出旋转信号的内容的估计。可以从旋转的输入信号中减去估计值，并将结果由杂散频率去旋转。在一个实施例中，输入信号可以被旋转，使得杂散以DC为中心。在一个替代实施例中，估计可以在从原始输入信号中减去之前被去旋转。公开了使用串行和并行架构来解决多个杂散的技术。还公开了用于搜索输入信号中杂散的存在以及跟踪随时间推移的杂散频率的技术。

2. 发明申请

WO2004082231A3 GMSK MODULATION TECHNIQUES 审中-公开
标题翻译： GMSK调制技术
公开(公告)号：WO2004082231A3
公开(公告)日：2004-10-28
申请号：PCT/US2004006758
申请日：2004-03-05
申请人： QUALCOMM INC , O'SHEA HELENA DEIRDRE
发明人： O'SHEA HELENA DEIRDRE
IPC分类号： H04L25/03 , H04L27/20
CPC分类号： H04L27/2017 , H04L25/03834
摘要： This disclosure is directed to digitally implemented GMSK modulation techniques. The digital GMSK modulation techniques make use of a lookup table (LUT) and mapping logic to digitally generate GMSK waveforms. The mapping logic can significantly reduce the size of the LUT, and thereby reduce memory requirements needed for effective digitally implemented GMSK modulation. A disclosed method comprises : selecting a first GMSK waveform from a LUT based on a first subset of an input bit stream; inverting the first GMSK waveform to generate a second GMSK waveform; and selecting one of the first and second GMSK waveforms based on a second subset of the input bit stream.
摘要翻译：本公开涉及数字实现的GMSK调制技术。数字GMSK调制技术利用查找表（LUT）和映射逻辑来数字地生成GMSK波形。映射逻辑可以显着减小LUT的大小，从而减少有效的数字执行的GMSK调制所需的存储器要求。所公开的方法包括：基于输入比特流的第一子集从LUT中选择第一GMSK波形; 反转第一GMSK波形以产生第二GMSK波形; 以及基于所述输入比特流的第二子集选择所述第一和第二GMSK波形中的一个。

3. 发明申请

WO2009076563A3 METHOD AND APPARATUS FOR COMPENSATING DC OFFSETS IN COMMUNICATION SYSTEMS 审中-公开
标题翻译：用于补偿通信系统中直流偏置的方法和装置
公开(公告)号：WO2009076563A3
公开(公告)日：2009-07-30
申请号：PCT/US2008086489
申请日：2008-12-11
申请人： QUALCOMM INC , O'SHEA HELENA DEIRDRE
发明人： O'SHEA HELENA DEIRDRE
IPC分类号： H04L25/06
CPC分类号： H04L25/063
摘要： A communications system receiver incorporates a time-averaged DC component subtracter to subtract a time-averaged DC offset component from a received, processed signal. The time-averaged DC offset is selectably calculated from a moving average or a running average. The selection of the time-averaged DC offset can be done depending on whether the receiver operates in a frequency hop mode or not.
摘要翻译：通信系统接收机包括时间平均DC分量减法器，以从接收到的处理信号中减去时间平均DC偏移分量。可以根据移动平均值或跑步平均值来选择地计算时间平均直流偏移。时间平均DC偏移的选择可以根据接收机是否以跳频模式操作来完成。

4. 发明申请

WO2017070371A3 RADIO FREQUENCY FRONT END DEVICES WITH MASKED WRITE 审中-公开
标题翻译：带掩盖式写入的无线电频率前端装置
公开(公告)号：WO2017070371A3
公开(公告)日：2017-06-08
申请号：PCT/US2016057951
申请日：2016-10-20
申请人： QUALCOMM INC
发明人： MISHRA LALAN JEE , WIETFELDT RICHARD , O'SHEA HELENA DEIRDRE , CHEN ZHENQI , ROETHIG WOLFGANG
IPC分类号： G06F13/16
CPC分类号： G06F13/28 , G06F13/102 , G06F13/16
摘要： Methods and apparatuses are described that facilitate the communication of data between a transmitter and a receiver across a serial bus interface. In one configuration, a transmitter generates a datagram based on a 16-bit address and a mask-and-data pair burst length, the 16-bit address including a most significant byte (MSB) and a least significant byte (LSB), compares the MSB to a receiver base address maintained in a shadow register, compares the mask-and-data pair burst length to a receiver masked-write burst length maintained in the shadow register, and sends the datagram to the receiver via the bus interface when: the MSB is equal to the receiver base address maintained in the shadow register, and the mask-and-data pair burst length is equal to the receiver masked-write burst length maintained in the shadow register.
摘要翻译：描述了便于通过串行总线接口在发射机和接收机之间进行数据通信的方法和装置。在一种配置中，发送器基于16位地址和掩码与数据对突发长度生成数据报，该16位地址包括最高有效字节（MSB）和最低有效字节（LSB），比较 MSB与影子寄存器中保存的接收机基地址进行比较，将掩码与数据对突发长度与保存在影子寄存器中的接收机屏蔽写入突发长度进行比较，并在以下情况下通过总线接口将数据报发送给接收机： MSB等于在影子寄存器中维持的接收器基地址，并且掩码和数据对突发长度等于在影子寄存器中维持的接收器掩码写突发长度。

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