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1. 发明授权

US4785463A Digital global positioning system receiver 失效
标题翻译：数字全球定位系统接收机
公开(公告)号：US4785463A
公开(公告)日：1988-11-15
申请号：US771755
申请日：1985-09-03
申请人： Robert V. Janc , Steven C. Jasper
发明人： Robert V. Janc , Steven C. Jasper
IPC分类号： G01S1/00 , G01S5/14 , G01S11/10 , G01S19/11 , H04K1/00
CPC分类号： G01S19/29 , G01S11/10
摘要： A digital receiver for GPS C/A-code signals is described. The GPS receiver of the present invention provides reception and tracking a plurality of satellites simultaneously, using four separate receiver channels. The GPS receiver of the present invention includes an analog front-end for selecting and frequency translating the received GPS signal. The GPS receiver further includes a highspeed digital signal processor for recovering the despread data of the GPS signal. The baseband signal is further processed by a general purpose digital signal processor for signal search, tracking, and data recovery operations, and a microprocessor provides overall receiver control, and interface with the operator of the GPS receiver.
摘要翻译：描述了用于GPS C / A码信号的数字接收机。本发明的GPS接收机使用四个独立的接收机信道同时提供对多个卫星的接收和跟踪。本发明的GPS接收机包括用于选择和频率转换接收的GPS信号的模拟前端。 GPS接收机还包括用于恢复GPS信号的解扩数据的高速数字信号处理器。基带信号由用于信号搜索，跟踪和数据恢复操作的通用数字信号处理器进一步处理，并且微处理器提供总体接收器控制，并且与GPS接收器的操作者接口。

2. 发明授权

US4416017A Apparatus and method for attenuating interfering signals 失效
标题翻译：用于衰减干扰信号的装置和方法
公开(公告)号：US4416017A
公开(公告)日：1983-11-15
申请号：US222459
申请日：1981-01-05
申请人： Steven C. Jasper , Robert V. Janc , David S. Robins , Michael H. Retzer
发明人： Steven C. Jasper , Robert V. Janc , David S. Robins , Michael H. Retzer
IPC分类号： H04B1/10 , G01S1/24 , G01S5/10 , H04B1/12 , H04B15/00
CPC分类号： G01S1/245 , H04B1/123
摘要： A method and apparatus for attenuating an interfering signal corrupting a desired Loran C signal is provided. An interfering signal sample is determined which occurs at the peak of the autocorrelation function of the interfering signal such that the period of the interferer is known. The sample occurring at the peak of the autocorrelation function is added to or subtracted from the desired Loran C signal sample taken at a predetermined reference point during the pulses thereof such that the interfering signal is cancelled or substantially attenuated.
摘要翻译：提供了一种用于衰减干扰信号的方法和装置，其破坏了所需的罗兰C信号。确定发生在干扰信号的自相关函数的峰值处的干扰信号样本，使得干扰源的周期是已知的。在自相关函数的峰值处出现的样本被添加到或从其在脉冲期间在预定参考点处获取的期望的Loran C信号样本中减去，使得干扰信号被消除或基本上衰减。

3. 发明授权

US4392138A Apparatus and method for detecting and inhibiting signals interfering with a Loran C signal 失效
标题翻译：用于检测和抑制干扰罗兰C信号的信号的装置和方法
公开(公告)号：US4392138A
公开(公告)日：1983-07-05
申请号：US222421
申请日：1981-01-05
申请人： Steven C. Jasper , Robert V. Janc
发明人： Steven C. Jasper , Robert V. Janc
IPC分类号： G01S1/24 , H04B7/00
CPC分类号： G01S1/245
摘要： An interference rejection apparatus is provided which samples the Loran C signal at selected pulse tracking reference points. The Loran C samples are separated into even and odd groups by appropriate summing-weighting circuitry. The even pulse and odd pulse waveforms thus produced are analyzed to determine the presence of an interfering signal which corrupts either of the off or even pulse groups. Upon detection of interference with either the even or odd Loran C samples, strobe dropping is employed to reject the affected group of samples.
摘要翻译：提供了一种干扰抑制装置，其在选定的脉冲跟踪参考点处采集Loran C信号。 Loran C样本通过适当的求和加权电路分为偶数和奇数组。分析如此产生的均匀脉冲和奇数脉冲波形，以确定干扰信号的存在，这破坏了脉冲组中的任一个或甚至是脉冲组。当检测到偶数或奇数Loran C样本的干扰时，使用选通脉冲来拒绝受影响的样本组。

4. 发明授权

US4893316A Digital radio frequency receiver 失效
标题翻译：数字射频接收机
公开(公告)号：US4893316A
公开(公告)日：1990-01-09
申请号：US890804
申请日：1986-07-24
申请人： Robert V. Janc , Steven C. Jasper , Lester A. Longley , Katherine L. Zebrose , William J. Turney , Ross J. Lillie
发明人： Robert V. Janc , Steven C. Jasper , Lester A. Longley , Katherine L. Zebrose , William J. Turney , Ross J. Lillie
IPC分类号： H03B27/00 , H03B28/00 , H03C3/40 , H03D1/22 , H03D3/00 , H03D7/16
CPC分类号： H03D3/007 , H03C3/40 , H03D1/2245 , H03D7/166 , H03B27/00 , H03B28/00 , H03D2200/005 , H03D2200/0052 , H03D3/006
摘要： A digital radio receiver is described. The digital receiver of the present invention contemplates a digital radio receiver which operates on a received analog signal which has been converted to a digital form after preselection at the output of the antenna. The digital receiver of the present invention comprises a preselector, a high-speed analog-to-digital (A/D) converter, a digitally implemented intermediate-frequency (IF) selectivity section having an output signal at substantially baseband frequencies, and digital signal processor (DSP) circuit performing demodulation and audio filtering. The radio architecture of the present invention is programmably adaptable to virtually every known modulation scheme and is particularly suitable for implementation on integrated circuits.
摘要翻译：描述数字无线电接收机。本发明的数字接收机设想一种数字无线电接收机，其对接收到的模拟信号进行操作，该接收的模拟信号在天线的输出处被预选之后被转换成数字形式。本发明的数字接收机包括预选器，高速模数（A / D）转换器，具有基本基带频率的输出信号的数字实现的中频（IF）选择部分，以及数字信号处理器（DSP）电路执行解调和音频滤波。本发明的无线电架构可编程地适应于几乎每个已知的调制方案，并且特别适用于集成电路上的实现。

5. 发明授权

US4445223A Apparatus and method for determining the presence and frequency of a periodic signal 失效
标题翻译：用于确定周期信号的存在和频率的装置和方法
公开(公告)号：US4445223A
公开(公告)日：1984-04-24
申请号：US222422
申请日：1981-01-05
申请人： Steven C. Jasper , Robert V. Janc , David S. Robins , Michael H. Retzer
发明人： Steven C. Jasper , Robert V. Janc , David S. Robins , Michael H. Retzer
IPC分类号： H04B1/10 , C30B29/62 , G01R23/02 , G01S1/24 , G01S5/10 , H03K3/78
CPC分类号： G01S1/245 , G01R23/02
摘要： An apparatus and method for determining the period and frequency of a signal intefering with a desired Loran C signal are provided. A sample of the interfering signal is generated at a time corresponding to the peak of the autocorrelation function of the interfering signal with respect to the predetermined pulse tracking reference point of the Loran C signal. Indicia of the period and frequency of the interferer is obtained from the timing of the sample generated at the autocorrelation function peak.
摘要翻译：提供了一种用于确定与期望的罗兰C信号的信号的周期和频率的装置和方法。在与干涉信号的自相关函数的峰值相对于罗兰C信号的预定脉冲跟踪参考点的峰值的时间产生干扰信号的样本。从自相关函数峰值处生成的样本的定时获得干扰源的周期和频率的标记。

6. 发明授权

US5440590A Method and apparatus for producing a usable signal from received diverse modulated signals 失效
标题翻译：用于从接收到的不同调制信号产生可用信号的方法和装置
公开(公告)号：US5440590A
公开(公告)日：1995-08-08
申请号：US143589
申请日：1993-11-01
申请人： Mark A. Birchler , Steven C. Jasper , Karen A. Brailean , Timothy J. Wilson
发明人： Mark A. Birchler , Steven C. Jasper , Karen A. Brailean , Timothy J. Wilson
IPC分类号： H04B7/08 , H04B7/10 , H04L1/06 , H04L1/02
CPC分类号： H04B7/0808 , H04B7/10 , H04L1/06
摘要： A diversity receiver that receives diverse modulated signals may produce a usable signal from the received modulated signals in the following manner. Two modulated signals, each including a desired component and an undesired component, are received by the diversity receiver, wherein each desired component includes an originally transmitted signal and each undesired component includes noise and interference. The diversity receiver estimates each desired and undesired component and produces the usable signal based on the estimated desired components and the estimated undesired components.
摘要翻译：接收不同调制信号的分集接收机可以以下列方式从接收到的调制信号产生可用信号。每个包含期望分量和不期望分量的两个调制信号由分集接收机接收，其中每个期望分量包括最初传输的信号，并且每个非期望分量包括噪声和干扰。分集接收器估计每个期望的和不期望的分量，并且基于估计的期望分量和所估计的不期望的分量产生可用信号。

7. 发明授权

US5263196A Method and apparatus for compensation of imbalance in zero-if downconverters 失效
标题翻译：用于补偿零 - 如果下变频器的不平衡的方法和装置
公开(公告)号：US5263196A
公开(公告)日：1993-11-16
申请号：US615107
申请日：1990-11-19
申请人： Steven C. Jasper
发明人： Steven C. Jasper
IPC分类号： H03D1/22 , H03D3/00 , H04B1/30 , H04L5/06 , H04B1/26
CPC分类号： H03D1/2245 , H04B1/30 , H04L5/06 , H03D3/006 , H03D3/007
摘要： To compensate the audio distortion resulting from amplitude and phase imbalance in the quadrature oscillator (103) and mixers (105, 115) in zero-IF downconverters (203), a balancing action is required. An apparatus for distortion compensation compensates for the amplitude and phase imbalance to reduce audio distortion. This is accomplished by determining (309) two gain values, which are combined (217, 227, 229) with the in-phase and quadrature components of the zero-IF downconverter (203) to compensate for the imbalance.
摘要翻译：为了补偿由零 - IF下变频器（203）中的正交振荡器（103）和混频器（105,115）中的幅度和相位不平衡引起的音频失真，需要平衡动作。用于失真补偿的装置补偿幅度和相位不平衡以减少音频失真。这通过确定（309）两个增益值来实现，所述两个增益值与零中频下变频器（203）的同相和正交分量相组合（217,227,229）以补偿不平衡。

8. 发明授权

US07796633B2 Range equalization transceiver system and method of using same 有权
标题翻译：范围均衡收发系统及其使用方法
公开(公告)号：US07796633B2
公开(公告)日：2010-09-14
申请号：US11383077
申请日：2006-05-12
申请人： Mark A. Birchler , Jeffrey D. Bonta , Steven C. Jasper
发明人： Mark A. Birchler , Jeffrey D. Bonta , Steven C. Jasper
IPC分类号： H04J3/16
CPC分类号： H04W40/12 , H04L45/123 , H04L45/125 , H04L45/24 , H04L45/3065 , H04W40/246 , H04W52/0216 , H04W52/0219 , H04W84/12 , H04W88/06 , Y02D70/142 , Y02D70/22 , Y02D70/23 , Y02D70/34
摘要： A range equalization transceiver system (100) for increasing efficiency of a continuous duty communications link includes a first transceiver (105) for transmitting data traffic over a broadband traffic channel and a second transceiver (107) for determining routing information using a discovery channel based on link quality. A controller (103) is used for interpreting routing information from the second transceiver (107) where the controller (103) selects a transmitting scheme based on data traffic conditions on both the broadband traffic channel and link quality channel for sending data over a wireless network.
摘要翻译：用于提高连续工作通信链路效率的量程均衡收发机系统（100）包括用于通过宽带业务信道发送数据业务的第一收发机（105）和用于基于基于链接质量。控制器（103）用于解释来自第二收发器（107）的路由信息，其中控制器（103）基于宽带业务信道上的数据业务条件和通过无线网络发送数据的链路质量信道来选择发送方案。

9. 发明授权

US07489733B2 Channel estimation using a minimized channel prediction interval 有权
标题翻译：使用最小化信道预测间隔的信道估计
公开(公告)号：US07489733B2
公开(公告)日：2009-02-10
申请号：US11108291
申请日：2005-04-18
申请人： Colin D. Frank , Robert J. Corke , Steven C. Jasper , Isam R. Makhlouf
发明人： Colin D. Frank , Robert J. Corke , Steven C. Jasper , Isam R. Makhlouf
IPC分类号： H04K1/10 , H04L27/28
CPC分类号： H04L25/0236 , H04L27/2647
摘要： A receiver configured for: a) receiving (410) a first OFDM symbol and generating a plurality of demodulated symbols for the first OFDM symbol; b) generating (420) decoder output code symbols corresponding to a subset of the plurality of demodulated symbols; c) determining (430) that a set of the decoder output code symbols make up a set of reference symbols corresponding to at least a portion of the subset of the plurality of demodulated symbols; d) generating (440) the set of reference symbols; e) generating (450) a set of channel estimates based on the set of reference symbols and the at least a portion of the subset of the plurality of demodulated symbols, for use in decoding a current OFDM symbol; and f) repeating steps b-e until a channel estimate for each demodulated symbol corresponding to the first OFDM symbol has been generated.
摘要翻译：一种接收机，被配置用于：a）接收（410）第一OFDM符号并产生用于所述第一OFDM符号的多个解调符号; b）产生（420）对应于所述多个解调符号的子集的解码器输出码符号; c）确定（430）一组解码器输出码符号组成对应于多个解调符号的子集的至少一部分的一组参考符号; d）产生（440）所述参考符号集合; e）基于参考符号集合和所述多个解调符号的子集的至少一部分来生成（450）一组信道估计，用于解码当前OFDM符号; 以及f）重复步骤b-e，直到已经产生对应于第一OFDM符号的每个解调符号的信道估计为止。

10. 发明授权

US6167275A Method and apparatus for determining a location of a communication unit in a wireless communication system 失效
标题翻译：用于确定无线通信系统中的通信单元的位置的方法和装置
公开(公告)号：US6167275A
公开(公告)日：2000-12-26
申请号：US992062
申请日：1997-12-17
申请人： Nicholas C. Oros , Steven C. Jasper , Mark A. Birchler
发明人： Nicholas C. Oros , Steven C. Jasper , Mark A. Birchler
IPC分类号： H04W64/00 , H04Q7/20
CPC分类号： H04W64/00
摘要： A wireless communication system (100) that includes a plurality of base sites (101-103) employs a method and apparatus for determining a location of a communication unit (107) in the system. Upon transmission of an information signal (109) by the communication unit, each of the base sites receives the transmitted information signal. A serving base site (e.g., 103) determines a stream of information symbols from the information signal, derives timing information based on the information signal and the stream of information symbols, and conveys the stream of information symbols preferably to at least two non-serving base sites (101-102). The non-serving base sites determine respective timing information based on the information signal received from the communication unit and the stream of information symbols received from the serving base site. The location of the communication unit is then determined by either a base site or a stand-alone processing device (105) based on the serving base site's and non-serving base site's timing information.
摘要翻译：包括多个基站（101-103）的无线通信系统（100）采用用于确定系统中的通信单元（107）的位置的方法和装置。在由通信单元发送信息信号（109）时，每个基站接收发送的信息信号。服务基站（例如，103）从信息信号确定信息符号流，基于信息信号和信息符号流导出定时信息，并将信息符号流优选地传送至至少两个不服务基地（101-102）。非服务基站基于从通信单元接收的信息信号和从服务基站接收到的信息符号流来确定相应的定时信息。然后，由基站或独立处理设备（105）基于服务基站和非服务基站的定时信息来确定通信单元的位置。

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