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11. 发明授权

US6122506A GSM cellular telephone and GPS receiver combination 失效
标题翻译： GSM蜂窝电话和GPS接收机组合
公开(公告)号：US6122506A
公开(公告)日：2000-09-19
申请号：US72295
申请日：1998-05-04
申请人： Chung Y. Lau , Reed A. Parker , Eric B. Rodal
发明人： Chung Y. Lau , Reed A. Parker , Eric B. Rodal
IPC分类号： G01S1/00 , G01S5/14 , G01S19/48 , H03D7/16 , H03L7/197 , H04B1/38 , H04B1/40 , H04Q7/20
CPC分类号： G01S19/36 , G01S19/235 , H03D7/165 , H04B1/005 , H04B1/0057 , H04B1/3805 , H04B1/406 , H03L7/1974
摘要： A GPS/GSM receiver combination for receiving GSM and GPS signals using an RF GPS integrated circuit for downconverting the GPS signal. The GPS integrated circuit includes a synthesizer for generating LO signals, first and second downconverters for using the LO signals for downconverting the GPS signal, and a sampler for providing in-phase and quadrature phase sampled output signals representative of the GPS signal. The synthesizer includes a multi-mode divider for providing substantially the same first LO frequency at about the midpoint of the L1 and L2 GPS frequencies when either of a standard GSM reference frequency or historically common GPS reference frequency is selected. A standby mode in the integrated circuit is controlled by a power logic circuit using a power supply input as a logic control signal. The GSM/GPS receiver combination includes a GSM reference oscillator and a microprocessor system including a GSM frequency correction code for correcting the GSM reference frequency based upon a frequency correction beacon (FCB) signal received in the GSM signal. The GSM-based correction is then used for correcting the GSM reference frequency in order to center a frequency search for acquiring the GPS signal.
摘要翻译： GPS / GSM接收机组合，用于使用RF GPS集成电路接收GSM和GPS信号，用于下变频GPS信号。 GPS集成电路包括用于产生LO信号的合成器，用于使用LO信号进行下变频的GPS信号的第一和第二下变频器，以及用于提供表示GPS信号的同相和正交相位采样的输出信号的采样器。合成器包括多模式分频器，用于当选择标准GSM参考频率或历史上常见的GPS参考频率之一时，在L1和L2 GPS频率的中点附近提供基本上相同的第一LO频率。集成电路中的待机模式由使用电源输入作为逻辑控制信号的电源逻辑电路来控制。 GSM / GPS接收机组合包括GSM参考振荡器和包括GSM频率校正码的微处理器系统，用于基于在GSM信号中接收到的频率校正信标（FCB）信号来校正GSM参考频率。然后，基于GSM的校正用于校正GSM参考频率，以便中心用于获取GPS信号的频率搜索。

12. 发明授权

US5883596A GPS timing receiver using oversampling 失效
标题翻译： GPS定时接收机采用过采样
公开(公告)号：US5883596A
公开(公告)日：1999-03-16
申请号：US970051
申请日：1997-11-13
申请人： Eric B. Rodal
发明人： Eric B. Rodal
IPC分类号： G01S1/00 , G01S19/03 , G04G7/02 , H04B7/185 , G01S5/02
CPC分类号： G01S19/235 , G04R40/02
摘要： A GPS timing receiver for providing a GPS-derived time signal. The GPS timing receiver includes a filter for filtering a GPS signal to a certain information bandwidth, a reference clock for generating a reference clock signal having a clock rate at least ten times the information bandwidth, a sampler using the reference clock signal for oversampling the filtered GPS signal, a correlation subsystem including a microprocessor for correlating the sampled GPS signal to the reference clock signal to measure a time difference between the GPS signal and the reference clock signal, and a time clock to issue a GPS-derived time signal based upon the reference clock signal and adjusted by the measured time difference in increments of the period of the reference clock signal. An optional frequency multiplier multiplies the reference clock rate enabling the time clock to adjust the GPS-derived time signal in increments of the period of the frequency multiplied reference clock signal.
摘要翻译：一种GPS定时接收器，用于提供GPS导出的时间信号。 GPS定时接收机包括用于将GPS信号过滤到特定信息带宽的滤波器，用于产生具有至少信息带宽十倍的时钟速率的参考时钟信号的参考时钟;使用参考时钟信号的采样器，用于过滤取样过滤的 GPS信号，包括微处理器的相关子系统，用于将采样的GPS信号与参考时钟信号相关，以测量GPS信号和参考时钟信号之间的时间差，以及基于GPS导出的时间信号发布GPS时间信号的时钟参考时钟信号，并以参考时钟信号周期的增量的测量时间差进行调整。可选的倍频器乘以参考时钟速率，使得时钟可以以倍频参考时钟信号的周期为增量来调整GPS导出的时间信号。

13. 发明授权

US5748144A GPS timing receiver using oversampling 失效
公开(公告)号：US5748144A
公开(公告)日：1998-05-05
申请号：US592051
申请日：1996-01-26
申请人： Eric B. Rodal
发明人： Eric B. Rodal
IPC分类号： G01S1/00 , G01S19/03 , G04G7/02 , H04B7/185 , G01S5/02
CPC分类号： G01S19/235 , G04R40/02
摘要： A GPS timing receiver for providing a GPS-derived time signal. The GPS timing receiver includes a filter for filtering a GPS signal to a certain information bandwidth, a reference clock for generating a reference clock signal having a clock rate at least ten times the information bandwidth, a sampler using the reference clock signal for oversampling the filtered GPS signal, a correlation subsystem including a microprocessor for correlating the sampled GPS signal to the reference clock signal to measure a time difference between the GPS signal and the reference clock signal, and a time clock to issue a GPS-derived time signal based upon the reference clock signal and adjusted by the measured time difference in increments of the period of the reference clock signal. An optional frequency multiplier multiplies the reference clock rate enabling the time clock to adjust the GPS-derived time signal in increments of the period of the frequency multiplied reference clock signal.

14. 发明授权

US5408193A Active circuit filter for reducing conducted radiation from a load back to its power supply 失效
标题翻译：有源电路滤波器，用于减少从负载返回到其电源的传导辐射
公开(公告)号：US5408193A
公开(公告)日：1995-04-18
申请号：US116896
申请日：1993-09-03
申请人： Eric B. Rodal
发明人： Eric B. Rodal
IPC分类号： G05F1/565 , H02M1/14 , H03K17/00 , H03B5/20
CPC分类号： H02M1/14 , G05F1/565
摘要： An embodiment of the present invention comprises a series pass transistor with its emitter arranged to receive a source of DC power, its collector arranged to supply a DC load, and its base connected to the junction of a capacitor to ground and an inductor to the collector. An output capacitor from the collector to ground is alternatively included. In a second embodiment of the present invention, an operational amplifier is inserted in the base circuit to increase the effective circuit gain.
摘要翻译：本发明的实施例包括串联晶体管，其发射极布置成接收直流电源，其集电极布置成提供直流负载，其基极连接到电容器与地的结和电感器到集电极。另外包括从集电极到地的输出电容器。在本发明的第二实施例中，运算放大器被插入到基极电路中以增加有效电路增益。

15. 发明授权

US5831577A GPS/radio antenna combination 失效
标题翻译： GPS /无线电天线组合
公开(公告)号：US5831577A
公开(公告)日：1998-11-03
申请号：US901253
申请日：1997-07-28
申请人： Mark E. Nichols , Eric B. Rodal
发明人： Mark E. Nichols , Eric B. Rodal
IPC分类号： G01S1/00 , G01S5/14 , G01S19/48 , H01Q1/38 , H01Q9/04 , H01Q9/30 , H01Q9/32 , H01Q21/28 , H01Q21/30 , H04B7/185 , G01S5/02
CPC分类号： H01Q1/38 , H01Q21/28 , H01Q21/30 , H01Q9/0407 , H01Q9/30 , H01Q9/32 , G01S19/36 , G01S19/41
摘要： A GPS/radio antenna for receiving a GPS satellite signal and a DGPS radio signal. The GPS/radio antenna includes a GPS antenna using a microstrip antenna element for receiving the GPS signal having GPS location determination information, a radio antenna for receiving a DGPS radio signal in the FM broadcast frequency range having DGPS corrections, an enclosure, and a cable. The GPS/radio antenna may be included in a GPS/DGPS receiver system also including a receiver unit with an FM DGPS receiver for demodulating the DGPS radio signal and providing DGPS corrections, and a differential-ready GPS receiver for providing a differentially-corrected GPS location.
摘要翻译：一种用于接收GPS卫星信号和DGPS无线电信号的GPS /无线电天线。 GPS /无线电天线包括使用微带天线元件的GPS天线，用于接收具有GPS位置确定信息的GPS信号，用于在具有DGPS校正的FM广播频率范围中接收DGPS无线电信号的无线电天线，外壳和电缆。 GPS /无线电天线可以包括在还包括具有用于解调DGPS无线电信号并提供DGPS校正的FM DGPS接收机的接收机单元的GPS / DGPS接收机系统中，以及用于提供差分校正的GPS 位置。

16. 发明授权

US5719587A Dual frequency vertical antenna 失效
标题翻译：双频垂直天线
公开(公告)号：US5719587A
公开(公告)日：1998-02-17
申请号：US710202
申请日：1996-09-13
申请人： Eric B. Rodal
发明人： Eric B. Rodal
IPC分类号： H01Q5/00 , H01Q5/357 , H01Q5/40 , H01Q9/40 , H01Q1/24
CPC分类号： H01Q9/40 , H01Q5/357 , H01Q5/40
摘要： A dual frequency vertical antenna for radiating a first and a second airwave signal in response to a first and a second conducted signal, the first airwave signal having a first frequency and the second airwave signal having a second frequency lower than one-half the first frequency. The antenna includes a horizontal base member and a vertical mast, including a coaxially disposed rod, projecting upward from the base member to a masthead. For feeding the conducted signals, a lower mast extension projecting downward from the base member and a tuning sleeve projecting either upward or downward from the base member are tuned to 1/4 wavelength at the first frequency and a single coaxial cable is connected between the base member and a feedpoint on the rod. The first airwave signal radiates from a dipole formed of an 1/4 wavelength upper rod extension extending upward from said masthead and a concentric 1/4 wavelength upper sleeve external to the mast projecting downward from said masthead. The mast is 1/4 wavelength at the second frequency for radiating the second airwave signal from a dipole formed of the mast and the base member.
摘要翻译：一种双频垂直天线，用于响应于第一和第二传导信号辐射第一和第二空气波信号，所述第一空气波信号具有第一频率，并且所述第二空气波信号具有低于第一频率的二分之一的第二频率。天线包括水平基座构件和垂直桅杆，包括同轴设置的杆，从基座构件向上突出到桅顶。为了馈送传导信号，从基座构件向下突出的下桅杆延伸部分和从底座部件向上或向下伸出的调谐套筒被调谐到+ E，第一频率的1/4 / EE +波长和单个同轴电缆连接在基座和杆上的馈电点之间。第一个空气波信号从由+ E，fra 1/4 + EE波长的上极杆延伸部分形成的偶极子辐射，从上述桅杆向上延伸，并且在桅杆外部同心的+ E，fra 1/4 + EE波长上套筒向下突出从桅顶桅杆是第二频率处的+ E，fra 1/4 + EE波长，用于从由桅杆和基座构件形成的偶极辐射第二空气波信号。

17. 发明授权

US5691726A GPS/radio antenna combination 失效
公开(公告)号：US5691726A
公开(公告)日：1997-11-25
申请号：US710670
申请日：1996-09-23
申请人： Mark E. Nichols , Eric B. Rodal
发明人： Mark E. Nichols , Eric B. Rodal
IPC分类号： G01S1/00 , G01S5/14 , G01S19/48 , H01Q1/38 , H01Q9/04 , H01Q9/30 , H01Q9/32 , H01Q21/28 , H01Q21/30 , H04B7/185 , G01S5/02
CPC分类号： H01Q1/38 , H01Q21/28 , H01Q21/30 , H01Q9/0407 , H01Q9/30 , H01Q9/32 , G01S19/36 , G01S19/41
摘要： A GPS/radio antenna for receiving a GPS satellite signal and a DGPS radio signal. The GPS/radio antenna includes a GPS antenna using a microstrip antenna element for receiving the GPS signal having GPS location determination information, a radio antenna for receiving a DGPS radio signal in the FM broadcast frequency range having DGPS corrections, an enclosure, and a cable. The GPS/radio antenna may be included in a GPS/DGPS receiver system also including a receiver unit with an FM DGPS receiver for demodulating the DGPS radio signal and providing DGPS corrections, and a differential-ready GPS receiver for providing a differentially-corrected GPS location.

18. 发明授权

US5564098A Ultra low-power integrated circuit for pseudo-baseband down-conversion of GPS RF signals 失效
标题翻译：用于GPS射频信号的伪基带下转换的超低功耗集成电路
公开(公告)号：US5564098A
公开(公告)日：1996-10-08
申请号：US305356
申请日：1994-09-13
申请人： Eric B. Rodal , Gary L. Wagner , Chung Y. Lau
发明人： Eric B. Rodal , Gary L. Wagner , Chung Y. Lau
IPC分类号： G01S1/00 , H03D7/16 , H04B1/26
CPC分类号： G01S19/37 , H03D7/16 , H04B1/26
摘要： A GPS receiver downconverter combines on a single integrated circuit, a first super-heterodyne mixer, a voltage controlled oscillator, a phase locked loop, a pair of quadrature mixers and a pair of quantizers with in-phase and quadrature-phase sampler outputs operable at twenty-five MHz and 2.5 MHz. Emitter-coupled logic and special low-voltage bipolar semiconductor technology are combined for 3.3 volt operation at under one hundred milliwatts.
摘要翻译： GPS接收机下变频器组合在单个集成电路，第一超外差混频器，压控振荡器，锁相环，一对正交混频器和一对具有同相和正交相位采样器输出的量化器，可在二十五MHz和2.5 MHz。发射极耦合逻辑和特殊低压双极半导体技术在一百毫瓦以下组合3.3伏工作。

19. 发明授权

US5521610A Curved dipole antenna with center-post amplifier 失效
标题翻译：带中心放大器的弯曲偶极天线
公开(公告)号：US5521610A
公开(公告)日：1996-05-28
申请号：US429657
申请日：1995-04-26
申请人： Eric B. Rodal
发明人： Eric B. Rodal
IPC分类号： H01Q1/22 , H01Q9/28 , H01Q21/26 , H01Q23/00
CPC分类号： H01Q21/26 , H01Q23/00 , H01Q9/285
摘要： An antenna system embodiment of the present invention comprises a curved dipole antenna stood off at its center by a printed circuit board assembly containing a pre-amplifier. The curved dipole antenna is implemented with a single-sided flexible circuit and is anchored at its four free ends to a sheet metal base for a groundplane. The printed circuit board assembly containing the predetermined amplifier is fixed perpendicular to the sheet metal base and has a tab that engages a slot in the center of the single-sided flexible circuit for electrical connection of a pair of orthogonal dipoles patterned on one side of the flexible circuit.
摘要翻译：本发明的天线系统实施例包括通过包含前置放大器的印刷电路板组件在其中心处突出的弯曲偶极天线。弯曲的偶极天线采用单面柔性电路实现，并且其四个自由端锚定到用于接地面的金属板底座。包含预定放大器的印刷电路板组件垂直于金属板底座固定，并且具有接合在单面柔性电路中心的狭槽的突片，用于电连接一对图案化在柔性电路。

20. 发明授权

US5467095A Low profile antenna 失效
标题翻译：低调天线
公开(公告)号：US5467095A
公开(公告)日：1995-11-14
申请号：US261742
申请日：1994-06-17
申请人： Eric B. Rodal , Reed A. Parker
发明人： Eric B. Rodal , Reed A. Parker
IPC分类号： H01Q9/04 , H01Q1/38
CPC分类号： H01Q9/0407
摘要： An antenna has a ground plane and a radiating element supported in electrically insulated, closely spaced-apart relation to the ground plane. Electrical energy is fed to the radiating element for radiation therefrom. The radiating element is constructed so as to lengthen at least one effective electrical dimension of the radiating element relative to a corresponding dimension of an orthogonal projection of the radiating element onto a plane parallel to the ground plane. In the preferred embodiment, the radiating element has a central plane portion substantially parallel to the ground plane, an outer flange portion extending towards the ground plane, and a square cutout centered with respect to the central plane portion.
摘要翻译：天线具有接地平面和辐射元件，该辐射元件与地平面以电绝缘的，紧密间隔的方式支撑。电能被馈送到辐射元件用于从其辐射。辐射元件被构造成将辐射元件的至少一个有效电尺寸相对于辐射元件的正交投影的相应尺寸延伸到平行于接地平面的平面上。在优选实施例中，辐射元件具有基本上平行于接地平面的中心平面部分，朝向接地平面延伸的外凸缘部分和相对于中心平面部分居中的方形切口。

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