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1. 发明授权

US08879439B2 Multiplexer 有权
标题翻译：复用器
公开(公告)号：US08879439B2
公开(公告)日：2014-11-04
申请号：US12886687
申请日：2010-09-21
申请人： Steven Jones
发明人： Steven Jones
IPC分类号： H04L5/00 , H04B1/38 , H04B1/16 , H04B1/00 , H04W88/06
CPC分类号： H04B1/3805 , H03J2200/11 , H04B1/0057 , H04B1/16 , H04W88/06
摘要： A multiplexer for a device capable of receiving signals in first and second frequency bands, the multiplexer comprising a first branch for connecting an antenna to a first sub-system configured to process received signals in the first frequency band, a second branch for connecting the antenna to a second sub-system configured to process received signals in the second frequency band, wherein the first branch comprises a filter for attenuating received signals in the second frequency band and the second branch couples the antenna directly to the second sub-system.
摘要翻译：一种用于能够在第一和第二频带中接收信号的设备的复用器，所述多路复用器包括用于将天线连接到被配置为处理第一频带中的接收信号的第一子系统的第一分支，用于连接天线的第二分支被配置为处理在所述第二频带中的接收信号的第二子系统，其中所述第一分支包括用于衰减所述第二频带中的接收信号的滤波器，并且所述第二分支将所述天线直接耦合到所述第二子系统。

2. 发明申请

US20090231188A1 MULTIPLE CLOCK SIGNAL GENERATION FROM A COMMON OSCILLATOR 有权
标题翻译：来自普通振荡器的多个时钟信号产生
公开(公告)号：US20090231188A1
公开(公告)日：2009-09-17
申请号：US12046701
申请日：2008-03-12
申请人： Mamdouh YANNI , Sean SIMMONS
发明人： Mamdouh YANNI , Sean SIMMONS
IPC分类号： H04B7/185
CPC分类号： H03J1/005 , H03J7/065 , H03J2200/11 , H03L7/23
摘要： A system and method of providing a clock signal to a navigation satellite receiver in a device is disclosed. A clock signal generated by a voltage controlled temperature compensated crystal oscillator (VCTCXO) in a cellular engine of the same device is appropriated to clock a numerically controlled oscillator (NCO) programmed to generate an adjusted clock signal suitable for use in receiving signals from navigation satellites and to heterodyne them down to baseband or an intermediate frequency for processing. Preferably, if the cellular engine has an automatic frequency control (AFC) module for adjusting the voltage control input to the VCTCXO to compensate for a change in the operating environment of the cellular engine, the AFC module modifies the control word in the NCO to counteract such adjustment so that the adjusted clock signal provided to the navigation satellite receiver is not unduly impacted. The use of the NCO ensures that the adjusted clock signal remains phase continuous throughout any such adjustments, so that positional lock of the navigation satellite receiver should not be lost. The sharing of the VCTCXO by the cellular engine and the navigation satellite receiver results in component cost and board space savings, economy in power consumption and reduced engineering effort in routing clock signals throughout the circuit board.
摘要翻译：公开了一种向设备中的导航卫星接收机提供时钟信号的系统和方法。由相同设备的蜂窝引擎中的电压控制温度补偿晶体振荡器（VCTCXO）产生的时钟信号适用于编程的数控振荡器（NCO），以产生适用于接收来自导航卫星的信号的调整时钟信号并将它们外差到基带或中频进行处理。优选地，如果蜂窝引擎具有用于调整对VCTCXO的电压控制输入的自动频率控制（AFC）模块以补偿蜂窝引擎的操作环境的变化，则AFC模块修改NCO中的控制字以抵消这样的调整使得提供给导航卫星接收机的经调整的时钟信号不会受到不适当的影响。使用NCO确保调整后的时钟信号在任何这样的调整中保持相位连续，使得导航卫星接收机的位置锁不应丢失。通过蜂窝引擎和导航卫星接收机共享VCTCXO可以节省部件成本和电路板空间，节省电力消耗，并减少整个电路板上的时钟信号布线工作。

3. 发明授权

US07561638B2 Demodulation apparatus and receiving apparatus 有权
标题翻译：解调装置和接收装置
公开(公告)号：US07561638B2
公开(公告)日：2009-07-14
申请号：US11724771
申请日：2007-03-16
申请人： Katsuyuki Tanaka , Masayuki Sawada , Hideki Takahashi , Koichiro Teranishi
发明人： Katsuyuki Tanaka , Masayuki Sawada , Hideki Takahashi , Koichiro Teranishi
IPC分类号： H04L27/14 , H03D1/00 , H03D3/00 , H04B1/16 , H04B1/69
CPC分类号： H03J1/005 , H03J2200/11 , H03L7/193 , H04B2001/70706
摘要： A demodulation apparatus that can support various oscillation frequencies. The portable phone device includes a frequency synthesizer for generating a local-oscillation signal having a local oscillation frequency for converting the frequency of an input receiving signal into an intermediate frequency based on an oscillation signal generated by an TCXO and a synchronization hold portion provided with an NCO for generating a signal having a predetermined frequency based on the oscillation signal generated by TCXO. The frequency synthesizer makes the local oscillation frequency variable by setting the dividing ratio variable in accordance with an arbitrary oscillation frequency so that the intermediate frequency remains within a predetermined range regardless of the oscillation frequency, and an NCO makes the frequency of the signal variable by setting the dividing ration variable in accordance with the oscillation frequency.
摘要翻译：一种可以支持各种振荡频率的解调装置。便携式电话装置包括：频率合成器，用于产生本地振荡信号，该本地振荡信号具有本地振荡频率，用于将输入接收信号的频率转换成中频，基于由TCXO产生的振荡信号和具有 NCO，用于根据由TCXO生成的振荡信号产生具有预定频率的信号。频率合成器通过根据任意的振荡频率设定分频比而使本地振荡频率变化，使得中频保持在预定范围内而与振荡频率无关，并且NCO通过设置使信号的频率可变分频比根据振荡频率变化。

4. 发明申请

US20070160169A1 Demodulation apparatus and receiving apparatus 有权
标题翻译：解调装置和接收装置
公开(公告)号：US20070160169A1
公开(公告)日：2007-07-12
申请号：US11724771
申请日：2007-03-16
申请人： Katsuyuki Tanaka , Masayuki Sawada , Hideki Takahashi , Koichiro Teranishi
发明人： Katsuyuki Tanaka , Masayuki Sawada , Hideki Takahashi , Koichiro Teranishi
IPC分类号： H04L27/00 , H04K1/10
CPC分类号： H03J1/005 , H03J2200/11 , H03L7/193 , H04B2001/70706
摘要： A demodulation apparatus that can support various oscillation frequencies. The portable phone device includes a frequency synthesizer for generating a local-oscillation signal having a local oscillation frequency for converting the frequency of an input receiving signal into an intermediate frequency based on an oscillation signal generated by an TCXO and a synchronization hold portion provided with an NCO for generating a signal having a predetermined frequency based on the oscillation signal generated by TCXO. The frequency synthesizer makes the local oscillation frequency variable by setting the dividing ratio variable in accordance with an arbitrary oscillation frequency so that the intermediate frequency remains within a predetermined range regardless of the oscillation frequency, and an NCO makes the frequency of the signal variable by setting the dividing ration variable in accordance with the oscillation frequency.
摘要翻译：一种可以支持各种振荡频率的解调装置。便携式电话装置包括：频率合成器，用于产生本地振荡信号，该本地振荡信号具有本地振荡频率，用于将输入接收信号的频率转换成中频，基于由TCXO产生的振荡信号和具有 NCO，用于根据由TCXO生成的振荡信号产生具有预定频率的信号。频率合成器通过根据任意的振荡频率设定分频比而使本地振荡频率变化，使得中频保持在预定范围内而与振荡频率无关，并且NCO通过设置使信号的频率可变分频比根据振荡频率变化。

5. 发明授权

US07072631B2 Mobile communication terminal and method of calibrating frequency in the same 失效
标题翻译：移动通信终端和校准频率的方法相同
公开(公告)号：US07072631B2
公开(公告)日：2006-07-04
申请号：US10425955
申请日：2003-04-30
申请人： Kenichi Kitatani
发明人： Kenichi Kitatani
IPC分类号： H04B1/18
CPC分类号： G01S19/235 , G01S19/256 , H03J1/0008 , H03J2200/11
摘要： A mobile communication terminal includes (a) a first unit for calibrating a frequency, (b) a global positioning system (GPS) module, and (c) a processor which electrically connects the first unit and the global positioning system module to each other. The first unit counts the number of an intermediate frequency (IF) signal generated by converting a frequency of a signal transmitted from a base station, the processor coverts a count of the intermediate signal obtained while the first unit is in lock-up condition, into a real count offset, and the global positioning system module counts the number of a signal transmitted from a circuit which generates an operational frequency of the mobile communication terminal, and calibrates the number of the signal with the real count offset.
摘要翻译：移动通信终端包括（a）用于校准频率的第一单元，（b）全球定位系统（GPS）模块，以及（c）将第一单元和全球定位系统模块彼此电连接的处理器。第一单元计算通过转换从基站发送的信号的频率而生成的中频（IF）信号的数量，处理器将第一单元处于锁定状态时获得的中间信号的计数覆盖为实际计数偏移量，并且全球定位系统模块对从产生移动通信终端的工作频率的电路发送的信号的数量进行计数，并且用实数偏移来校准信号的数量。

6. 发明申请

US20040214538A1 Automatic frequency control processing in multi-channel receivers 有权
标题翻译：多通道接收机中的自动频率控制处理
公开(公告)号：US20040214538A1
公开(公告)日：2004-10-28
申请号：US10421002
申请日：2003-04-22
申请人： MOTOROLA, INC.
发明人： Wayne Wiggins Ballantyne , Thomas Michael King
IPC分类号： H04B001/00 , H04B007/00
CPC分类号： H03J1/0083 , H03J1/0033 , H03J1/0041 , H03J3/185 , H03J2200/02 , H03J2200/11
摘要： A multiple channel receiver (200) includes a communications receiver synthesizer (204) and at least one numerically controlled oscillator (NCO) (406) that produce local oscillator signals that are derived from a common reference oscillator (202). A DSP (212) and CPU (214) perform automatic frequency control (AFC) by adjustment of the reference oscillator (202) based upon a signal received by a receive channel using the local oscillator signal produced by the communications receiver synthesizer (204). The CPU (214) also provides a synchronous indication of adjustments to the reference oscillator (202) to control circuitry for the at least one NCO (406) so that the configuration of the NCO (406) can be altered so as to maintain a substantially constant frequency output during the adjustment of the reference oscillator (202).
摘要翻译：多通道接收器（200）包括通信接收机合成器（204）和产生从公共参考振荡器（202）导出的本地振荡器信号的至少一个数控振荡器（NCO）（406）。 DSP（212）和CPU（214）通过使用由通信接收机合成器（204）产生的本地振荡器信号由接收信道接收的信号来调整参考振荡器（202）来执行自动频率控制（AFC）。 CPU（214）还向参考振荡器（202）提供对于至少一个NCO（406）的控制电路的调整的同步指示，使得可以改变NCO（406）的配置，以便保持基本上在调整参考振荡器（202）期间的恒定频率输出。

7. 发明授权

US06725159B2 GPS receiver and method for processing GPS signals 有权
标题翻译： GPS接收机和GPS信号处理方法
公开(公告)号：US06725159B2
公开(公告)日：2004-04-20
申请号：US10340015
申请日：2003-01-09
申请人： Norman F. Krasner
发明人： Norman F. Krasner
IPC分类号： G06F1700
CPC分类号： G01S19/235 , G01C21/206 , G01S5/0027 , G01S5/0036 , G01S5/0045 , G01S5/0054 , G01S5/009 , G01S19/06 , G01S19/07 , G01S19/09 , G01S19/11 , G01S19/25 , G01S19/252 , G01S19/254 , G01S19/256 , G01S19/258 , G01S19/29 , G01S19/30 , G01S19/34 , G01S19/37 , G01S19/41 , G01S19/42 , G01S2205/008 , G06F2221/2111 , H01Q1/273 , H01Q21/28 , H03D7/163 , H03J7/06 , H03J2200/11 , H04B1/3805
摘要： A global positioning system (GPS) receiver has first circuitry for receiving and processing pseudorandom sequences transmitted by a number of GPS satellites. The first circuitry is configured to perform conventional correlation operations on the received pseudorandom sequences to determine pseudoranges from the GPS receiver to the GPS satellites. The GPS receiver also includes second circuitry coupled to the first circuitry. The second circuitry is configured to receive and process the pseudorandom sequences during blockage conditions. The second circuitry processes the pseudorandom sequences by digitizing and storing a predetermined record length of the received sequences and then performing fast convolution operations on the stored data to determine the pseudoranges. The GPS receiver may have a common circuitry for receiving GPS signals from in view satellites and downconverting the RF frequency of the received GPS signals to an intermediate frequency (IF). The IF signals are split into two signal paths; a first of which provides the conventional con-elation processing to calculate the pseudoranges. During blockage conditions, the IF signal is passed to the second signal path wherein the IF signals are digitized and stored in memory and later processed using the fast convolution operations to provide the pseudoranges. Alternative arrangements for the two signal paths include separate downconverters or shared digitizers. One embodiment provides both signal paths on a single integrated circuit with shared circuitry executing computer readable instructions to perform GPS signal processing appropriate to the reception conditions.
摘要翻译：全球定位系统（GPS）接收机具有用于接收和处理由多个GPS卫星发送的伪随机序列的第一电路。第一电路被配置为对所接收的伪随机序列执行传统的相关操作，以确定从GPS接收器到GPS卫星的伪距离。 GPS接收机还包括耦合到第一电路的第二电路。第二电路被配置为在阻塞状态期间接收和处理伪随机序列。第二电路通过数字化并存储接收到的序列的预定记录长度然后对所存储的数据执行快速卷积运算来确定伪距来处理伪随机序列。 GPS接收机可以具有用于从视频卫星接收GPS信号并将接收的GPS信号的RF频率下变频到中频（IF）的公共电路。 IF信号分为两个信号路径; 第一个提供常规的连接处理来计算伪距离。在阻塞条件期间，IF信号被传递到第二信号路径，其中IF信号被数字化并存储在存储器中，并且随后使用快速卷积运算来处理以提供伪距。两个信号路径的替代布置包括单独的下变频器或共享数字化仪。一个实施例在单个集成电路上提供两个信号路径，共享电路执行计算机可读指令以执行适合于接收条件的GPS信号处理。

8. 发明授权

US06542821B2 GPS receiver and method for processing GPS signals 有权
公开(公告)号：US06542821B2
公开(公告)日：2003-04-01
申请号：US09882313
申请日：2001-06-14
申请人： Norman F. Krasner
发明人： Norman F. Krasner
IPC分类号： G06F16500
CPC分类号： G01S19/235 , G01C21/206 , G01S5/0027 , G01S5/0036 , G01S5/0045 , G01S5/0054 , G01S5/009 , G01S19/06 , G01S19/07 , G01S19/09 , G01S19/11 , G01S19/25 , G01S19/252 , G01S19/254 , G01S19/256 , G01S19/258 , G01S19/29 , G01S19/30 , G01S19/34 , G01S19/37 , G01S19/41 , G01S19/42 , G01S2205/008 , G06F2221/2111 , H01Q1/273 , H01Q21/28 , H03D7/163 , H03J7/06 , H03J2200/11 , H04B1/3805
摘要： A global positioning system (GPS) receiver has first circuitry for receiving and processing pseudorandom sequences transmitted by a number of GPS satellites. The first circuitry is configured to perform conventional correlation operations on the received pseudorandom sequences to determine pseudoranges from the GPS receiver to the GPS satellites. The GPS receiver also includes second circuitry coupled to the first circuitry. The second circuitry is configured to receive and process the pseudorandom sequences during blockage conditions. The second circuitry processes the pseudorandom sequences by digitizing and storing a predetermined record length of the received sequences and then performing fast convolution operations on the stored data to determine the pseudoranges. The GPS receiver may have a common circuitry for receiving GPS signals from in view satellites and downconverting the RF frequency of the received GPS signals to an intermediate frequency (IF). The IF signals are split into two signal paths; a first of which provides the conventional correlation processing to calculate the pseudoranges. During blockage conditions, the IF signal is passed to the second signal path wherein the IF signals are digitized and stored in memory and later processed using the fast convolution operations to provide the pseudoranges. Alternative arrangements for the two signal paths include separate downconverters or shared digitizers. One embodiment provides both signal paths on a single integrated circuit with shared circuitry executing computer readable instructions to perform GPS signal processing appropriate to the reception conditions.

9. 发明申请

US20010028321A1 GPS receiver utilizing a communication link 有权
公开(公告)号：US20010028321A1
公开(公告)日：2001-10-11
申请号：US09766184
申请日：2001-01-18
发明人： Norman F. Krasner
IPC分类号： G01S005/14
CPC分类号： G01S19/41 , G01S5/0036 , G01S5/0045 , G01S5/0054 , G01S5/009 , G01S19/06 , G01S19/07 , G01S19/09 , G01S19/11 , G01S19/235 , G01S19/252 , G01S19/254 , G01S19/256 , G01S19/258 , G01S2205/008 , G06F2221/2111 , H01Q1/273 , H01Q21/28 , H03D7/163 , H03J1/0008 , H03J7/04 , H03J7/047 , H03J7/06 , H03J2200/11 , H04B1/00 , H04B1/0007 , H04B1/28 , H04B1/3805
摘要： Methods and apparatuses for deriving an approximate Doppler for a satellite positioning system (SPS) receiver from an approximate location which is obtained from a cellular communication system information source. In one embodiment, an approximate location of the SPS receiver is derived from the information source and this approximation location is used to determine approximate Dopplers to a plurality of SPS satellites at a given time. The approximate Dopplers are then used to reduce processing time in either determining pseudoranges to the SPS satellites or acquiring signals from the SPS satellites. In another aspect of the invention, a reference signal is used to provide a local oscillator signal which is used to acquire SPS signals in an SPS receiver. This reference signal is extracted from a data signal modulated on a carrier frequency. The data signal on the carrier frequency is transmitted from, in one example, a wireless cell site which is communicating with the SPS receiver which has a cellular based communication receiver.

10. 发明授权

US6133871A GPS receiver having power management 失效
标题翻译： GPS接收机具有电源管理功能
公开(公告)号：US6133871A
公开(公告)日：2000-10-17
申请号：US613966
申请日：1996-03-08
申请人： Norman F. Krasner
发明人： Norman F. Krasner
IPC分类号： G01S1/00 , G01S1/02 , G01S5/00 , G01S19/05 , G01S19/08 , G01S19/09 , G01S19/13 , G01S19/23 , G01S19/24 , G01S19/25 , G01S19/28 , G01S19/29 , G01S19/30 , G01S19/34 , G01S19/46 , G06F1/00 , H01Q1/27 , H01Q21/28 , H03D7/16 , H03J7/04 , H03J7/06 , H04B1/00 , H04B1/28 , H04B1/38 , G01S5/02 , H04B1/16
CPC分类号： G01S5/0027 , G01S19/05 , G01S19/09 , G01S19/235 , G01S19/24 , G01S19/25 , G01S19/252 , G01S19/254 , G01S19/256 , G01S19/258 , G01S19/28 , G01S19/29 , G01S19/30 , G01S19/34 , G01S19/37 , G01S19/46 , G01S5/0036 , G01S5/0054 , H01Q1/273 , H01Q21/28 , H03J7/04 , H03J7/06 , H04B1/0007 , H04B1/28 , H04B1/3805 , G01S19/11 , G01S2205/008 , G01S5/0045 , G06F2221/2111 , H03D7/163 , H03J2200/11 , H04B1/00 , H04B2001/3894
摘要： A GPS receiver having a low power mode of operation in one embodiment includes an antenna which receives GPS signals at an RF frequency from in view satellites; a downconverter coupled to the antenna for reducing the RF frequency of the received GPS signals to an intermediate frequency (IF); a digitizer coupled to the downconverter and sampling the IF GPS signals at a predetermined rate to produce sampled IF GPS signals; a memory coupled to the digitizer storing the sampled IF GPS signals; and a digital signal processor (DSP) coupled to the memory and operating under stored instructions thereby performing operations on the sampled IF GPS signals to provide pseudorange information. In one example, after the sampled IF GPS signals have been stored in the memory, the GPS receiver front end is powered down and the DSP is powered up. The GPS receiver in one embodiment also includes other power management features.
摘要翻译：在一个实施例中具有低功率操作模式的GPS接收机包括从视野卫星以RF频率接收GPS信号的天线; 耦合到天线的下变频器，用于将接收到的GPS信号的RF频率降低到中频（IF）; 耦合到下变频器并以预定速率对IF GPS信号进行采样以产生采样的IF GPS信号的数字转换器; 耦合到数字转换器的存储器存储采样的IF GPS信号的存储器; 以及数字信号处理器（DSP），其耦合到存储器并且在存储的指令下操作，从而对采样的IF GPS信号执行操作以提供伪距信息。在一个示例中，在采样的IF GPS信号已经存储在存储器中之后，GPS接收器前端被断电并且DSP被加电。一个实施例中的GPS接收机还包括其他功率管理特征。

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