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41. 发明授权

US5982324A Combining GPS with TOA/TDOA of cellular signals to locate terminal 失效
标题翻译：将GPS与蜂窝信号的TOA / TDOA相结合，定位终端
公开(公告)号：US5982324A
公开(公告)日：1999-11-09
申请号：US078558
申请日：1998-05-14
申请人： J. Michael Watters , Leo Strawczynski , David G. Steer
发明人： J. Michael Watters , Leo Strawczynski , David G. Steer
IPC分类号： G01S1/00 , G01S5/00 , G01S5/14 , G01S19/06 , G01S19/25 , G01S5/02 , H04B7/185
CPC分类号： G01S19/41 , G01S19/11 , G01S19/34 , G01S19/46 , G01S5/009 , G01S2205/008 , H03J2200/11
摘要： Aspects of global positioning system (GPS) technology and cellular technology are combined in order to provide an effective and efficient position location system. In a first aspect of the invention, a cellular network is utilized to collect differential GPS error correction data, which is forwarded to a mobile terminal over the cellular network. The mobile terminal receives this data, along with GPS pseudoranges using a GPS receiver, and calculates its position using this information. According to a second aspect, when the requisite number of GPS satellites are not in view of the mobile terminal, then a GPS pseudosatellite signal, broadcast from a base station of the cellular network, is received by the mobile terminal and processed as a substitute for the missing GPS satellite signal. A third aspect involves calculating position using GPS when the requisite number of GPS satellites are in view of a GPS receiver, but when the requisite number of GPS satellites are not in view of the GPS receiver, then position is calculated using the cellular network infrastructure. When the requisite number of GPS satellites come back into view of the GPS receiver, then position is again calculated using GPS. A fourth aspect involves using cellular signals already being transmitted from base stations to terminals in a cellular network to calculate a round trip delay, from which a distance calculation between the base station and the terminal can be made. This distance calculation substitutes for a missing GPS satellite signal.
摘要翻译：结合全球定位系统（GPS）技术和蜂窝技术的方面，以提供有效和高效的位置定位系统。在本发明的第一方面，蜂窝网络用于收集通过蜂窝网络转发到移动终端的差分GPS误差校正数据。移动终端使用GPS接收机连同GPS伪距接收该数据，并使用该信息来计算其位置。根据第二方面，当GPS卫星的必需数量不在移动终端时，则由蜂窝网络的基站广播的GPS伪卫星信号被移动终端接收并被处理为缺少GPS卫星信号。第三方面涉及当GPS卫星的所需数量是GPS接收机时，使用GPS计算位置，但是当GPS卫星的必要数量不在GPS接收机时，则使用蜂窝网络基础设施来计算位置。当必要数量的GPS卫星重新看到GPS接收机时，再次使用GPS计算位置。第四方面涉及使用已经从基站向蜂窝网络中的终端发送的蜂窝信号来计算往返延迟，从而可以进行基站与终端之间的距离计算。该距离计算代替丢失的GPS卫星信号。

42. 发明授权

US08565704B2 Method and apparatus for compensating an oscillator in a location-enabled wireless device 有权
公开(公告)号：US08565704B2
公开(公告)日：2013-10-22
申请号：US11771831
申请日：2007-06-29
申请人： Charles Abraham
发明人： Charles Abraham
IPC分类号： H04B7/00
CPC分类号： H03B5/04 , G01S19/235 , H03J1/0008 , H03J3/04 , H03J2200/11 , H03L1/025 , H03L1/026 , H04B1/3805
摘要： A method and apparatus for compensating an oscillator in a location-enabled wireless device is described. In an example, a mobile device includes a wireless receiver for receiving wireless signals and a GPS receiver for receiving GPS signals. The mobile device also includes an oscillator having an associated temperature model. A frequency error is derived from a wireless signal. The temperature model is adjusted in response to the frequency error and a temperature proximate the oscillator. Frequency error of the oscillator is compensated using the adjusted temperature model. In another example, a frequency error is derived using a second oscillator within the wireless receiver.

43. 发明授权

US08009089B2 Multiple clock signal generation from a common oscillator 有权
标题翻译：来自公共振荡器的多个时钟信号产生
公开(公告)号：US08009089B2
公开(公告)日：2011-08-30
申请号：US13042850
申请日：2011-03-08
申请人： Mamdouh Yanni
发明人： Mamdouh Yanni
IPC分类号： G01S19/23
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。在相同设备的蜂窝引擎中由电压控制温度补偿晶体振荡器（VCTCXO）产生的时钟信号被用于对被编程为产生适合用于接收来自导航卫星的信号的经调整的时钟信号的数控振荡器（NCO）进行时钟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。

44. 发明授权

US07903025B2 Multiple clock signal generation from a common oscillator 有权
公开(公告)号：US07903025B2
公开(公告)日：2011-03-08
申请号：US12046701
申请日：2008-03-12
申请人： Mamdouh Yanni
发明人： Mamdouh Yanni
IPC分类号： G01S19/23 , G01S19/36
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.

45. 发明申请

US20110053645A1 Method and Apparatus for Adjusting Reference Oscillator Frequency in a Mobile Wireless Device 有权
标题翻译：用于调整移动无线设备中参考振荡器频率的方法和装置
公开(公告)号：US20110053645A1
公开(公告)日：2011-03-03
申请号：US12942502
申请日：2010-11-09
申请人： Charles Abraham
发明人： Charles Abraham
IPC分类号： H04M1/00
CPC分类号： H04B1/403 , G01S19/235 , H03J7/04 , H03J2200/11 , H04B1/3805
摘要： A method and apparatus for using a conventional oscillator in a cellular telephone transceiver as a source of a reference signal for a GPS receiver. In one embodiment, the method comprises using a voltage-controlled oscillator (“VCXO”) within a cellular telephone transceiver to generate a reference frequency signal for the GPS receiver. Circuitry within the telephone transceiver generates a frequency error signal. Both of these signals are coupled to GPS circuitry and used to control a carrier numerically controlled oscillator (“NCO”) and a code NCO. The NCOs produce a tuning signal and a timing signal, respectively. The GPS circuitry uses the NCO generated signals to process GPS signals.
摘要翻译：一种在蜂窝电话收发机中使用常规振荡器作为GPS接收机的参考信号源的方法和装置。在一个实施例中，该方法包括在蜂窝电话收发器内使用压控振荡器（“VCXO”）来产生用于GPS接收器的参考频率信号。电话收发器内的电路产生频率误差信号。这两个信号耦合到GPS电路并用于控制载波数控振荡器（“NCO”）和代码NCO。 NCO分别产生调谐信号和定时信号。 GPS电路使用NCO生成的信号来处理GPS信号。

46. 发明申请

US20090258657A1 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：US20090258657A1
公开(公告)日：2009-10-15
申请号：US12484357
申请日：2009-06-15
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： H04W24/00
CPC分类号： H03J1/005 , H03J2200/11 , H03L7/193 , H04B2001/70706
摘要： A portable phone device comprises a telephone unit for base band processing of a receiving signal and audio conversion processing, as well as a global positioning system (GPS) receiving unit for receiving signals from at least one GPS satellite, each signal including a spread code. A crystal oscillator generates a first oscillation signal having a predetermined frequency, and a temperature controlled oscillator generates a second oscillation signal having a predetermined frequency different from that of the first oscillation signal. A synchronization capture portion performs synchronization capture of the spread code, and a synchronization hold portion performs synchronization holding and demodulation of the signals received from the at least one GPS satellite. A central processing unit calculates position and speed of the portable phone device.
摘要翻译：便携式电话装置包括用于接收信号和音频转换处理的基带处理的电话单元，以及用于从至少一个GPS卫星接收信号的全球定位系统（GPS）接收单元，每个信号包括扩展码。晶体振荡器产生具有预定频率的第一振荡信号，温度控制振荡器产生具有与第一振荡信号不同的预定频率的第二振荡信号。同步捕获部分执行扩展码的同步捕获，并且同步保持部分对从至少一个GPS卫星接收的信号执行同步保持和解调。中央处理单元计算便携式电话设备的位置和速度。

47. 发明授权

US07548130B2 Characteristic automatic compensating apparatus, characteristic automatic compensating method, characteristic automatic compensating program of oscillator and positioning signal receiver 有权
标题翻译：特征自动补偿装置，特征自动补偿方法，振荡器和定位信号接收机的特征自动补偿程序
公开(公告)号：US07548130B2
公开(公告)日：2009-06-16
申请号：US10547058
申请日：2004-02-19
申请人： Michio Kobayashi
发明人： Michio Kobayashi
IPC分类号： H03L1/02
CPC分类号： H03L1/026 , G01S19/235 , H03J2200/11
摘要： A characteristic automatic compensating apparatus of an oscillator includes oscillating means, temperature detecting means, characteristic determining means for measuring a drift value of an oscillating frequency while changing the temperature and for determining a coefficient of an approximated equation representing temperature and the drift value, storing means for storing the coefficient, drift value predicting means, and characteristic updating means for updating the coefficient by the measured drift value of the oscillating frequency and the temperature, wherein the characteristic determining means represents the approximated equation representing the characteristic of the temperature detected by the temperature detecting means and the drift value of the oscillating frequency of the oscillating means by a polynomial.
摘要翻译：振荡器的特征自动补偿装置包括振荡装置，温度检测装置，用于在改变温度时测量振荡频率的漂移值并确定表示温度和漂移值的近似式的系数的特性确定装置，存储装置用于存储系数，漂移值预测装置和特征更新装置，用于通过测量的振荡频率的漂移值和温度来更新系数，其中特性确定装置表示表示由温度检测的温度的特性的近似方程检测装置和振荡装置的振荡频率的漂移值通过多项式。

48. 发明授权

US07301377B2 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：US07301377B2
公开(公告)日：2007-11-27
申请号：US10371887
申请日：2003-02-21
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： H03B19/00 , H03D3/02 , H03K9/00 , H04B7/14
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 ratio 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。

49. 发明申请

US20060094465A1 Method and apparatus for compensating an oscillator in a location-enabled wireless device 有权
公开(公告)号：US20060094465A1
公开(公告)日：2006-05-04
申请号：US11311088
申请日：2005-12-19
申请人： Charles Abraham
发明人： Charles Abraham
IPC分类号： H04M1/00
CPC分类号： H03B5/04 , G01S19/235 , H03J1/0008 , H03J3/04 , H03J2200/11 , H03L1/025 , H03L1/026 , H04B1/3805
摘要： A method and apparatus for compensating an oscillator in a location-enabled wireless device is described. In an example, a mobile device includes a wireless receiver for receiving wireless signals and a GPS receiver for receiving GPS signals. The mobile device also includes an oscillator having an associated temperature model. A frequency error is derived from a wireless signal. The temperature model is adjusted in response to the frequency error and a temperature proximate the oscillator. Frequency error of the oscillator is compensated using the adjusted temperature model. In another example, a frequency error is derived using a second oscillator within the wireless receiver.

50. 发明申请

US20040142701A1 Method and apparatus for adjusting reference oscillator frequency in a mobile wireless device 失效
标题翻译：用于在移动无线设备中调整参考振荡器频率的方法和装置
公开(公告)号：US20040142701A1
公开(公告)日：2004-07-22
申请号：US10345604
申请日：2003-01-16
申请人： Charles Abraham to Global Locate, Inc.
发明人： Charles Abraham
IPC分类号： H04B001/18 , H04B001/26
CPC分类号： H04B1/403 , G01S19/235 , H03J7/04 , H03J2200/11 , H04B1/3805
摘要： A method and apparatus for using a conventional oscillator in a cellular telephone transceiver as a source of a reference signal for a GPS receiver. In one embodiment, the method comprises using a voltage-controlled oscillator (nullVCXOnull) within a cellular telephone transceiver to generate a reference frequency signal for the GPS receiver. Circuitry within the telephone transceiver generates a frequency error signal. Both of these signals are coupled to GPS circuitry and used to control a carrier numerically controlled oscillator (nullNCOnull) and a code NCO. The NCOs produce a tuning signal and a timing signal, respectively. The GPS circuitry uses the NCO generated signals to process GPS signals.
摘要翻译：一种在蜂窝电话收发机中使用常规振荡器作为GPS接收机的参考信号源的方法和装置。在一个实施例中，该方法包括在蜂窝电话收发器内使用压控振荡器（“VCXO”）来产生用于GPS接收器的参考频率信号。电话收发器内的电路产生频率误差信号。这两个信号耦合到GPS电路并用于控制载波数控振荡器（“NCO”）和代码NCO。 NCO分别产生调谐信号和定时信号。 GPS电路使用NCO生成的信号来处理GPS信号。

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