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1. 发明授权

US06298083B1 Power savings technique for a positioning system receiver 有权
标题翻译：定位系统接收机的节能技术
公开(公告)号：US06298083B1
公开(公告)日：2001-10-02
申请号：US09307255
申请日：1999-05-04
申请人： David C. Westcott , Andrew B. Carlson , Paul Turney , Jeffrey Crerie
发明人： David C. Westcott , Andrew B. Carlson , Paul Turney , Jeffrey Crerie
IPC分类号： H04L2730
CPC分类号： G01S19/30 , G01S19/34 , H04B1/708
摘要： A Global Positioning System (GPS) receiver includes multiple correlation segments that can operate in parallel. Each correlation segment has a separate set of accumulators associated with it, embodied in random access memory (RAM). In each of the correlation segments, correlation data associated with an input code and a reference code are generated. The multiple correlation segments are cross-coupled, so that correlation data generated in each correlation segment are added to correlation data generated in each other correlation segment. The combined correlation data in each correlation segment are stored in the accumulators of each corresponding correlation segment, such that the accumulators of only one correlation segment are accessed at a time, reducing power consumption resulting from accessing RAM.
摘要翻译：全球定位系统（GPS）接收机包括可并行操作的多个相关段。每个相关段具有与之相关的一组单独的累加器，体现在随机存取存储器（RAM）中。在每个相关段中，生成与输入代码和参考代码相关联的相关数据。多个相关段被交叉耦合，使得在每个相关段中产生的相关数据被添加到彼此相关段中生成的相关数据。每个相关段中的组合相关数据被存储在每个对应的相关段的累加器中，使得一次只访问一个相关段的累加器，从而减少访问RAM造成的功耗。

2. 发明授权

US07596465B2 System and method for built-in testing of a GPS receiver 有权
标题翻译：内置GPS接收机测试的系统和方法
公开(公告)号：US07596465B2
公开(公告)日：2009-09-29
申请号：US10672354
申请日：2003-09-25
申请人： Randall Dale Ristau , Paul Turney
发明人： Randall Dale Ristau , Paul Turney
IPC分类号： G06F19/00
CPC分类号： G01S19/23 , G01S19/32
摘要： Built-in test equipment (BITE) incorporated in a GPS receiver for providing a loop forward test. The loop forward test capability may be combined with a loop backward capability to provide a comprehensive built-in test (BIT) capability for the signal path in a GPS receiver. A code generator generates deterministic test code signals such as C/A code, P code and pseudo M code that are used to modulate one or more radio frequency (RF) carriers to produce RF test signals. The RF test signals are injected into the GPS receiver's RF input. The RF test signal signals are then down-converted and demodulated through an operational signal path of the GPS receiver. The processed test signals may then be compared to the initial test data. A loop backward BITE may also be used to sample the positioning data output by the receiver.
摘要翻译：内置测试设备（BITE）并入GPS接收机，用于提供环路前进测试。环路向前测试功能可以与循环反向功能相结合，为GPS接收机中的信号路径提供综合的内置测试（BIT）能力。代码生成器生成用于调制一个或多个射频（RF）载波以产生RF测试信号的确定性测试码信号，例如C / A码，P码和伪M码。 RF测试信号被注入GPS接收机的RF输入。 RF测试信号信号然后通过GPS接收机的操作信号路径进行下变频和解调。然后将经处理的测试信号与初始测试数据进行比较。回路BITE也可用于对接收机输出的定位数据进行采样。

3. 发明申请

US20060005087A1 SYSTEM AND METHOD FOR BUILT-IN TESTING OF A GPS RECEIVER 有权
标题翻译： GPS接收机内置测试系统及方法
公开(公告)号：US20060005087A1
公开(公告)日：2006-01-05
申请号：US10672354
申请日：2003-09-25
申请人： Randall Ristau , Paul Turney
发明人： Randall Ristau , Paul Turney
IPC分类号： G06F19/00
CPC分类号： G01S19/23 , G01S19/32
摘要： Built-in test equipment (BITE) incorporated in a GPS receiver for providing a loop forward test. The loop forward test capability may be combined with a loop backward capability to provide a comprehensive built-in test (BIT) capability for the signal path in a GPS receiver. A code generator generates deterministic test code signals such as C/A code, P code and pseudo M code that are used to modulate one or more radio frequency (RF) carriers to produce RF test signals. The RF test signals are injected into the GPS receiver's RF input. The RF test signal signals are then down-converted and demodulated through an operational signal path of the GPS receiver. The processed test signals may then be compared to the initial test data. A loop backward BITE may also be used to sample the positioning data output by the receiver.
摘要翻译：内置测试设备（BITE）并入GPS接收机，用于提供环路前进测试。环路向前测试功能可以与循环反向功能相结合，为GPS接收机中的信号路径提供综合的内置测试（BIT）能力。代码生成器生成用于调制一个或多个射频（RF）载波以产生RF测试信号的确定性测试码信号，例如C / A码，P码和伪M码。 RF测试信号被注入GPS接收机的RF输入。 RF测试信号信号然后通过GPS接收机的操作信号路径进行下变频和解调。然后将经处理的测试信号与初始测试数据进行比较。回路BITE也可用于对接收机输出的定位数据进行采样。

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