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1. 发明申请

US20100309900A1 SEARCHER FOR MULTIPLE ORTHOGONAL CHANNELS WITH KNOWN DATA- WCDMA STEP2 SEARCH 有权
标题翻译：具有已知数据的多个正交通道的搜索器 - WCDMA STEP2搜索
公开(公告)号：US20100309900A1
公开(公告)日：2010-12-09
申请号：US12860534
申请日：2010-08-20
申请人： Yan Li , Parvathanathan Subrahmanya , Naveed Zaman
发明人： Yan Li , Parvathanathan Subrahmanya , Naveed Zaman
IPC分类号： H04B7/216
CPC分类号： H04B1/7083 , H04B1/70735 , H04B1/709
摘要： A circuit and algorithm are disclosed for a step2 search of a three step search of synchronization channels in a W-CDMA system. A mobile terminal of the CDMA system includes an RF downconverter for receiving I and Q signals. A searcher, responsive to the I and Q signals, includes a first correlator for correlating the I and Q signals with a primary synchronization code on a primary synchronization channel, and a second correlator for correlating I and Q signals with a secondary synchronization code on a secondary synchronization channel. The correlated I and Q signals are added for each of the secondary synchronization codes. An energy calculator and a maximum energy detector use the correlated I and Q signals of both the primary and secondary synchronization channels to detect the most likely scrambling code group of secondary synchronization codes.
摘要翻译：公开了一种针对W-CDMA系统中的同步信道的三步搜索的步骤2搜索的电路和算法。 CDMA系统的移动终端包括用于接收I和Q信号的RF下变频器。响应于I和Q信号的搜索器包括用于将I信号与Q信号与主同步信道上的主同步码进行相关的第一相关器，以及用于使I和Q信号与第一同步码相关的第二相关器，辅同步通道。为每个辅助同步码添加相关的I和Q信号。能量计算器和最大能量检测器使用主和次同步信道的相关I和Q信号来检测次同步码的最可能的扰码组。

2. 发明申请

US20090041162A1 SEARCHER FOR MULTIPLE ORTHOGONAL CHANNELS WITH KNOWN DATA WCDMA STEP2 SEARCH 有权
标题翻译：具有已知数据的多个正交通道的搜索器WCDMA STEP2搜索
公开(公告)号：US20090041162A1
公开(公告)日：2009-02-12
申请号：US11836941
申请日：2007-08-10
申请人： Yan Li , Parvathanathan Subrahmanya , Naveed Zaman
发明人： Yan Li , Parvathanathan Subrahmanya , Naveed Zaman
IPC分类号： H04L27/06
CPC分类号： H04B1/7083 , H04B1/70735 , H04B1/709
摘要： A circuit and algorithm are disclosed for a step2 search of a three step search of synchronization channels in a W-CDMA system. A mobile terminal of the CDMA system includes an RF downconverter for receiving I and Q signals. A searcher, responsive to the I and Q signals, includes a first correlator for correlating the I and Q signals with a primary synchronization code on a primary synchronization channel, and a second correlator for correlating I and Q signals with a secondary synchronization code on a secondary synchronization channel. The correlated I and Q signals are added for each of the secondary synchronization codes. An energy calculator and a maximum energy detector use the correlated I and Q signals of both the primary and secondary synchronization channels to detect the most likely scrambling code group of secondary synchronization codes.
摘要翻译：公开了一种针对W-CDMA系统中的同步信道的三步搜索的步骤2搜索的电路和算法。 CDMA系统的移动终端包括用于接收I和Q信号的RF下变频器。响应于I和Q信号的搜索器包括用于将I信号与Q信号与主同步信道上的主同步码进行相关的第一相关器，以及用于使I和Q信号与第一同步码相关的第二相关器，辅同步通道。为每个辅助同步码添加相关的I和Q信号。能量计算器和最大能量检测器使用主和次同步信道的相关I和Q信号来检测次同步码的最可能的扰码组。

3. 发明授权

US07970043B2 Searcher for multiple orthogonal channels with known data—WCDMA step2 search 有权
标题翻译：用于具有已知数据的多个正交信道的搜索器WCDMA step2搜索
公开(公告)号：US07970043B2
公开(公告)日：2011-06-28
申请号：US12860534
申请日：2010-08-20
申请人： Yan Li , Parvathanathan Subrahmanya , Naveed Zaman
发明人： Yan Li , Parvathanathan Subrahmanya , Naveed Zaman
IPC分类号： H04B1/707
CPC分类号： H04B1/7083 , H04B1/70735 , H04B1/709
摘要： A circuit and algorithm are disclosed for a step2 search of a three step search of synchronization channels in a W-CDMA system. A mobile terminal of the CDMA system includes an RF downconverter for receiving I and Q signals. A searcher, responsive to the I and Q signals, includes a first correlator for correlating the I and Q signals with a primary synchronization code on a primary synchronization channel, and a second correlator for correlating I and Q signals with a secondary synchronization code on a secondary synchronization channel. The correlated I and Q signals are added for each of the secondary synchronization codes. An energy calculator and a maximum energy detector use the correlated I and Q signals of both the primary and secondary synchronization channels to detect the most likely scrambling code group of secondary synchronization codes.
摘要翻译：公开了一种针对W-CDMA系统中的同步信道的三步搜索的步骤2搜索的电路和算法。 CDMA系统的移动终端包括用于接收I和Q信号的RF下变频器。响应于I和Q信号的搜索器包括用于将I信号与Q信号与主同步信道上的主同步码进行相关的第一相关器，以及用于使I和Q信号与第一同步码相关的第二相关器，辅同步通道。为每个辅助同步码添加相关的I和Q信号。能量计算器和最大能量检测器使用主和次同步信道的相关I和Q信号来检测次同步码的最可能的扰码组。

4. 发明授权

US07933316B2 Searcher for multiple orthogonal channels with known data WCDMA step2 search 有权
标题翻译：用于具有已知数据WCDMA step2搜索的多个正交信道的搜索器
公开(公告)号：US07933316B2
公开(公告)日：2011-04-26
申请号：US11836941
申请日：2007-08-10
申请人： Yan Li , Parvathanathan Subrahmanya , Naveed Zaman
发明人： Yan Li , Parvathanathan Subrahmanya , Naveed Zaman
IPC分类号： H04B1/707
CPC分类号： H04B1/7083 , H04B1/70735 , H04B1/709
摘要： A circuit and algorithm are disclosed for a step2 search of a three step search of synchronization channels in a W-CDMA system. A mobile terminal of the CDMA system includes an RF downconverter for receiving I and Q signals. A searcher, responsive to the I and Q signals, includes a first correlator for correlating the I and Q signals with a primary synchronization code on a primary synchronization channel, and a second correlator for correlating I and Q signals with a secondary synchronization code on a secondary synchronization channel. The correlated I and Q signals are added for each of the secondary synchronization codes. An energy calculator and a maximum energy detector use the correlated I and Q signals of both the primary and secondary synchronization channels to detect the most likely scrambling code group of secondary synchronization codes.
摘要翻译：公开了一种针对W-CDMA系统中的同步信道的三步搜索的步骤2搜索的电路和算法。 CDMA系统的移动终端包括用于接收I和Q信号的RF下变频器。响应于I和Q信号的搜索器包括用于将I信号与Q信号与主同步信道上的主同步码进行相关的第一相关器，以及用于使I和Q信号与第一同步码相关的第二相关器，辅同步通道。为每个辅助同步码添加相关的I和Q信号。能量计算器和最大能量检测器使用主和次同步信道的相关I和Q信号来检测次同步码的最可能的扰码组。

5. 发明授权

US07035755B2 Circuit testing with ring-connected test instrument modules 失效
公开(公告)号：US07035755B2
公开(公告)日：2006-04-25
申请号：US10222191
申请日：2002-08-16
申请人： Michael F. Jones , Robert Whyte , Jamie S. Cullen , Naveed Zaman , Yann Gazounaud , Burnell G. West , William Fritzsche
发明人： Michael F. Jones , Robert Whyte , Jamie S. Cullen , Naveed Zaman , Yann Gazounaud , Burnell G. West , William Fritzsche
IPC分类号： G06F11/273
CPC分类号： G01R31/31907 , G01R31/31922
摘要： Method and apparatus for circuit testing with ring-connected test instrument modules. A system for controlling one or more test instruments to test one or more integrated circuits includes a master clock and a controller. The test instruments are connected to form a communication ring. The master clock is connected to each test instrument and provides a clock signal to the one or more test instruments. The controller is connected to the communication ring and is configured to align counters of test instruments to derive a common clock time value from the clock signal. The controller is further configured to generate and send data words into the communication ring to carry the data words to each test instrument. The data words includes at least one data word specifying a test event to be performed, a common clock time value, and at least one of the test instruments.

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