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1. 发明授权

US07705639B1 Method and apparatus for high performance automatic frequency control in a wireless receiver 有权
标题翻译：无线接收机中高性能自动频率控制的方法和装置
公开(公告)号：US07705639B1
公开(公告)日：2010-04-27
申请号：US12338760
申请日：2008-12-18
申请人： Ali Dolatshahi Pirooz
发明人： Ali Dolatshahi Pirooz
IPC分类号： H03B19/00
CPC分类号： H04L27/0014 , H04L2027/0032
摘要： An apparatus and a method are disclosed wherein a clock generator component converts a received clock signal into a plurality of internal clock signals which are skewed in time, a phase difference component computes phase differences at subsequent clock phases of a received phase signal, an intermediate averaging component receives each phase difference signals and outputs their average, a threshold detection component detects steady phase changes and activates a preamble detect signal which is used to clock an output filter that smoothes the output from the intermediate averaging component. The output is a frequency correction signal that is used by a wireless receiver to correct its reception process. The disclosed invention merges the frequency correction process more quickly and accurately, is less likely to trigger on noise and has a lower packet error rate than conventional systems.
摘要翻译：公开了一种装置和方法，其中时钟发生器部件将接收到的时钟信号转换成在时间上偏斜的多个内部时钟信号，相位差分量计算接收相位信号的后续时钟相位的相位差，中间平均分量接收每个相位差信号并输出它们的平均值，阈值检测分量检测稳定相位变化并激活前导码检测信号，该信号用于对从中间平均分量输出进行平滑的输出滤波器进行时钟。输出是由无线接收机用于校正其接收过程的频率校正信号。所公开的发明更频繁和准确地合并频率校正处理，不太可能触发噪声并且具有比常规系统更低的分组错误率。

2. 发明授权

US07272376B1 Look-up table implementation of WCDMA frame synchronization and cell group ID detection 有权
标题翻译：查询表实现WCDMA帧同步和小区组ID检测
公开(公告)号：US07272376B1
公开(公告)日：2007-09-18
申请号：US10437866
申请日：2003-05-13
申请人： Robert Harold Sparr , Ali Dolatshahi Pirooz
发明人： Robert Harold Sparr , Ali Dolatshahi Pirooz
IPC分类号： H04B7/216 , H04B1/00 , H04J3/06
CPC分类号： H04B1/7083 , H04W36/0083 , H04W56/00
摘要： The present invention is directed towards a look-up table implementation of a WCDMA frame synchronization and a cell group ID detection (both of which are comprised within a “secondary search” process). The secondary search process receives a signal (which is formatted as slots within a frame) and determines (“decides”) information encoded in the received signal according to the slots of the received signal. The determined information is used to produce a sequence of values. A sequence of values (which have been determined from successive slots) is used to produce an index into a table that stores secondary search results. The secondary search codes are arranged such that a minimum sequence of values can be used to determine frame synchronization and group identification. The table is configured to return information that is sufficient for determining frame synchronization and the group ID of the received signal.
摘要翻译：本发明涉及WCDMA帧同步和小区组ID检测（两者都包括在“辅助搜索”过程中）的查找表实现。辅助搜索处理接收信号（其被格式化为帧内的时隙），并根据接收信号的时隙确定（“决定”）接收信号中编码的信息。所确定的信息用于产生一系列值。使用一系列值（已经从连续的时隙确定）来产生索引到存储辅助搜索结果的表中。次级搜索代码被布置成使得可以使用最小值序列来确定帧同步和组标识。该表被配置为返回足以确定帧同步和接收信号的组ID的信息。

3. 发明授权

US08462903B2 In-band interference rejection of signals in alternate and adjacent channels 有权
标题翻译：交替和相邻信道中信号的带内干扰抑制
公开(公告)号：US08462903B2
公开(公告)日：2013-06-11
申请号：US12642013
申请日：2009-12-18
申请人： Ali Dolatshahi Pirooz , Hendricus De Ruijter
发明人： Ali Dolatshahi Pirooz , Hendricus De Ruijter
IPC分类号： H04B1/10
CPC分类号： H04B1/1036
摘要： A method includes filtering a received signal to generate a band-pass filtered signal using a band-pass filter having a pass-band including frequencies located within a central lobe of a power spectrum associated with a target channel of a plurality of channels supported by a communications system. The pass-band is approximately centered at a frequency of a null of a power spectrum associated with at least one other channel of the plurality of channels supported by the communications system. The method includes processing the received signal based on the band-pass filtered signal. The at least one other channel may include at least one of an alternate channel and an adjacent channel of the plurality of channels.
摘要翻译：一种方法包括对接收的信号进行滤波以使用带通滤波器生成带通滤波的信号，该带通滤波器具有包括位于与由多个信道支持的多个信道的目标信道相关联的功率谱的中心波瓣内的频率的通带通讯系统通带大致集中在与由通信系统支持的多个信道中的至少一个其他信道相关联的功率谱的零点的频率上。该方法包括基于带通滤波信号处理接收信号。所述至少一个其它信道可以包括多个信道中的替代信道和相邻信道中的至少一个信道。

4. 发明申请

US20110150155A1 IN-BAND INTERFERENCE REJECTION OF SIGNALS IN ALTERNATE AND ADJACENT CHANNELS 有权
标题翻译：信号在同一通道和相邻通道中的带内干扰抑制
公开(公告)号：US20110150155A1
公开(公告)日：2011-06-23
申请号：US12642013
申请日：2009-12-18
申请人： Ali Dolatshahi Pirooz , Hendricus De Ruijter
发明人： Ali Dolatshahi Pirooz , Hendricus De Ruijter
IPC分类号： H04B1/10
CPC分类号： H04B1/1036
摘要： A method includes filtering a received signal to generate a band-pass filtered signal using a band-pass filter having a pass-band including frequencies located within a central lobe of a power spectrum associated with a target channel of a plurality of channels supported by a communications system. The pass-band is approximately centered at a frequency of a null of a power spectrum associated with at least one other channel of the plurality of channels supported by the communications system. The method includes processing the received signal based on the band-pass filtered signal. The at least one other channel may include at least one of an alternate channel and an adjacent channel of the plurality of channels.
摘要翻译：一种方法包括对接收的信号进行滤波以使用带通滤波器生成带通滤波的信号，该带通滤波器具有包括位于与由多个信道支持的多个信道的目标信道相关联的功率谱的中心波瓣内的频率的通带通讯系统通带大致集中在与由通信系统支持的多个信道中的至少一个其他信道相关联的功率谱的零点的频率上。该方法包括基于带通滤波信号处理接收信号。所述至少一个其它信道可以包括多个信道中的替代信道和相邻信道中的至少一个信道。

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