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41. 发明授权

US07432774B2 Microstrip line dielectric overlay 有权
标题翻译：微带线介质覆盖层
公开(公告)号：US07432774B2
公开(公告)日：2008-10-07
申请号：US10789931
申请日：2004-02-27
申请人： Roy Greeff
发明人： Roy Greeff
IPC分类号： H01P3/08
CPC分类号： H01P3/081 , H05K1/024 , H05K3/28 , H05K2201/09236 , Y10T29/49016 , Y10T29/49155
摘要： A printed circuit board has a dielectric constant different from the dielectric constant of free space, with at least two microstrip lines routed adjacent to one another on a surface of the printed circuit board. A dielectric coating is applied to at least one of the at least two microstrip lines such that the dielectric constant of the dielectric coating differs from the dielectric constant of free space. In a further embodiment, the dielectric coating comprises a material having a dielectric constant approximately equal to the dielectric constant of the printed circuit board.
摘要翻译：印刷电路板具有与自由空间的介电常数不同的介电常数，至少两条微带线在印刷电路板的表面上彼此相邻布置。将介电涂层施加到至少两条微带线中的至少一条，使得介电涂层的介电常数与自由空间的介电常数不同。在另一实施例中，电介质涂层包括介电常数近似等于印刷电路板的介电常数的材料。

42. 发明申请

US20080180253A1 RFID Communication System and Method of Operation 审中-公开
标题翻译： RFID通信系统和操作方法
公开(公告)号：US20080180253A1
公开(公告)日：2008-07-31
申请号：US11781884
申请日：2007-07-23
申请人： David K. Ovard , Roy Greeff
发明人： David K. Ovard , Roy Greeff
IPC分类号： G06K7/00 , G08B13/14 , H04B7/22
CPC分类号： G06K7/10366 , G06K7/0008 , G06K19/0723 , H01Q1/2208 , H04B1/707 , H04B7/22 , H04J13/0022
摘要： A radio frequency identification (RFID) system enabling backscatter communication between a reader and a tag. A baseband data signal is encoded, and it may be selectively inverted and used to modulate a carrier using amplitude modulation, phase modulation, or both amplitude and phase modulation. A reply received from the tag in response to a command from the reader may include an identification code associated with an object to which the tag is affixed.
摘要翻译：一种射频识别（RFID）系统，可实现读写器与标签之间的反向散射通信。对基带数据信号进行编码，并且可以选择性地反转并用于使用幅度调制，相位调制或幅度和相位调制来调制载波。响应于来自读取器的命令从标签接收到的答复可以包括与标签所贴附的对象相关联的识别码。

43. 发明申请

US20070288669A1 CAPACITIVE MULTIDROP BUS COMPENSATION 失效
标题翻译：电力多媒体总线补偿
公开(公告)号：US20070288669A1
公开(公告)日：2007-12-13
申请号：US11841248
申请日：2007-08-20
申请人： Roy Greeff , Terry Lee
发明人： Roy Greeff , Terry Lee
IPC分类号： G06F13/40
CPC分类号： G06F13/4086
摘要： The signal integrity of a high speed heavily loaded multidrop memory bus is often degraded due the numerous impedance mismatches. The impedance mismatches causes the bus to exhibit a nonlinear frequency response, which diminishes signal integrity and limits the bandwidth of the bus. A compensating element, such as a capacitor which ties the bus to a reference plane (e.g., a ground potential), or an inductor wired in series with the bus, is located approximately midway between the memory controller and the memory slots. The use of the compensating element equalizes signal amplitudes and minimizes phase errors of signals in an interested frequency range and diminishes the amplitudes of high frequency signals which exhibit high degrees of phase error. The resulting bus structure has increased desirable harmonic content with low phase error, thereby permitting the bus to exhibit better rise time performance and permitting a higher data transfer rate.
摘要翻译：高速重负载多点存储器总线的信号完整性常常由于许多阻抗失配而降级。阻抗不匹配导致总线呈现非线性频率响应，这降低了信号完整性并限制了总线的带宽。诸如将总线连接到参考平面（例如，接地电位）的电容器或与总线串联的电感器的补偿元件位于存储器控制器和存储器插槽之间的大约中间位置。补偿元件的使用均衡信号幅度并使感兴趣的频率范围内的信号的相位误差最小化，并且减小出现高度相位误差的高频信号的振幅。所得到的总线结构增加了具有低相位误差的期望谐波含量，从而允许总线呈现更好的上升时间性能并允许更高的数据传输速率。

44. 发明授权

US06603391B1 Phase shifters, interrogators, methods of shifting a phase angle of a signal, and methods of operating an interrogator 失效
标题翻译：移相器，询问器，移位信号的相位角的方法以及操作询问器的方法
公开(公告)号：US06603391B1
公开(公告)日：2003-08-05
申请号：US09265082
申请日：1999-03-09
申请人： Roy Greeff , David K. Ovard
发明人： Roy Greeff , David K. Ovard
IPC分类号： H04Q100
CPC分类号： H04B1/525 , G01S13/751 , G06K7/0008 , G07C9/00309 , G07C2009/00373 , G07C2009/00793 , H04B5/0056
摘要： The present invention includes phase shifters, interrogators, methods of shifting a phase angle of a signal, and methods of operating an interrogator. One aspect of the present invention provides a phase shifter including a first power divider configured to receive a signal and provide plural quadrature components of the signal; plural mixers coupled with the first power divider and configured to scale the quadrature components using a phase shift angle; and a second power divider coupled with the mixers and configured to combine the scaled quadrature components to shift the phase angle of the input signal by the phase shift angle.
摘要翻译：本发明包括移相器，询问器，移位信号的相位角的方法以及操作询问器的方法。本发明的一个方面提供了一种移相器，包括：第一功率分配器，被配置为接收信号并提供信号的多个正交分量; 多个混频器，与第一功率分配器耦合并被配置为使用相移角缩放正交分量; 以及与所述混频器耦合并被配置为组合所述经比例缩放的正交分量以将所述输入信号的相位角移位所述相移角的第二功率分配器。

45. 发明授权

US06356764B1 Wireless communication systems, interrogators and methods of communicating within a wireless communication system 有权
标题翻译：无线通信系统，询问器和无线通信系统内的通信方法
公开(公告)号：US06356764B1
公开(公告)日：2002-03-12
申请号：US09265074
申请日：1999-03-09
申请人： David K. Ovard , Roy Greeff
发明人： David K. Ovard , Roy Greeff
IPC分类号： H04Q720
CPC分类号： G06K7/01 , G06K7/0008 , G06K7/10356 , G06K17/0022 , H04W8/005 , H04W84/18
摘要： The present invention relates to wireless communication systems, interrogators and methods of communicating within a wireless communication system. One aspect of the present invention provides a wireless communication system including at least one remote communication device configured to communicate a return link wireless signal; an interrogator including: a communication station configured to receive the return link wireless signal and to generate a return link communication signal corresponding to the return link wireless signal; communication circuitry coupled with the communication station and configured to communicate the return link communication signal; and a housing remotely located with respect to the communication station and including circuitry configured to receive the return link communication signal from the communication circuitry and to process the return link communication signal.
摘要翻译：本发明涉及无线通信系统，询问器和在无线通信系统内进行通信的方法。本发明的一个方面提供了一种无线通信系统，包括至少一个被配置为传送返回链路无线信号的远程通信设备; 询问器，包括：通信站，被配置为接收所述返回链路无线信号并产生与所述返回链路无线信号相对应的返回链路通信信号; 通信电路与所述通信站耦合并且被配置为传送所述返回链路通信信号; 以及相对于所述通信站远程定位的外壳，并且包括被配置为从所述通信电路接收所述返回链路通信信号并且处理所述返回链路通信信号的电路的电路。

46. 发明授权

US06255993B1 Right and left hand circularly polarized RFID backscatter antenna 有权
标题翻译：左右圆偏振RFID反向散射天线
公开(公告)号：US06255993B1
公开(公告)日：2001-07-03
申请号：US09349615
申请日：1999-07-08
申请人： Roy Greeff , David K. Ovard , Dirgha Khatri
发明人： Roy Greeff , David K. Ovard , Dirgha Khatri
IPC分类号： H01Q302
CPC分类号： H01Q1/38
摘要： An antenna, system and method for transmitting and receiving RF signals over a first frequency band using a single antenna or two closely spaced antennas. In one embodiment, the antenna is configured to receive first signals in the first frequency band having a first rotational polarization and to transmit second signals in the first frequency band and having a second rotational polarization. The second signals may be transmitted in response to the first signals. The first signals may be preferentially routed to a receiver using signal conditioning circuitry that also routes the second signals from a transmitter to the antenna but not to the receiver.
摘要翻译：一种用于使用单个天线或两个紧密间隔的天线在第一频带上发送和接收RF信号的天线，系统和方法。在一个实施例中，天线被配置为接收具有第一旋转极化的第一频带中的第一信号并且在第一频带中传输第二信号并且具有第二旋转极化。可以响应于第一信号来发送第二信号。使用也将第二信号从发射机路由到天线而不是接收机的信号调节电路，可以将第一信号优先路由到接收机。

47. 发明授权

US09214713B2 Method of fabricating a microstrip line dielectric overlay 有权
标题翻译：制造微带线电介质覆盖层的方法
公开(公告)号：US09214713B2
公开(公告)日：2015-12-15
申请号：US12242252
申请日：2008-09-30
申请人： Roy Greeff
发明人： Roy Greeff
IPC分类号： H01P11/00 , H01Q13/00 , H01P3/08 , H05K1/02 , H05K3/28
CPC分类号： H01P3/081 , H05K1/024 , H05K3/28 , H05K2201/09236 , Y10T29/49016 , Y10T29/49155
摘要： A printed circuit board has a dielectric constant different from the dielectric constant of free space, with at least two microstrip lines routed adjacent to one another on a surface of the printed circuit board. A dielectric coating is applied to at least one of the at least two microstrip lines such that the dielectric constant of the dielectric coating differs from the dielectric constant of free space. In a further embodiment, the dielectric coating comprises a material having a dielectric constant approximately equal to the dielectric constant of the printed circuit board.
摘要翻译：印刷电路板具有与自由空间的介电常数不同的介电常数，至少两条微带线在印刷电路板的表面上彼此相邻布置。将介电涂层施加到至少两条微带线中的至少一条，使得介电涂层的介电常数与自由空间的介电常数不同。在另一实施例中，电介质涂层包括介电常数近似等于印刷电路板的介电常数的材料。

48. 发明申请

US20130069767A1 METHODS AND APPARATUS FOR RFID TAG COMMUNICATIONS 有权
标题翻译： RFID标签通信的方法和设备
公开(公告)号：US20130069767A1
公开(公告)日：2013-03-21
申请号：US13620243
申请日：2012-09-14
申请人： David K. Ovard , Roy Greeff
发明人： David K. Ovard , Roy Greeff
IPC分类号： G06K19/07
CPC分类号： G06K7/10366 , G06K7/0008 , G06K19/0723 , H01Q1/2208 , H04B1/707 , H04B7/22 , H04J13/0022
摘要： The present invention provides backscatter interrogators, communication systems and backscatter communication methods. According to one aspect of the present invention, a backscatter interrogator includes a data path configured to communicate a data signal; a signal generator configured to generate a carrier signal; and a modulator coupled with the data path and the signal generator, the modulator being configured to spread the data signal to define a spread data signal and amplitude modulate the carrier signal using the spread data signal, the modulator being further configured to phase modulate the carrier signal.
摘要翻译：本发明提供反向散射询问器，通信系统和后向散射通信方法。根据本发明的一个方面，反向散射询问器包括被配置为传送数据信号的数据路径; 信号发生器，被配置为产生载波信号; 以及与所述数据路径和所述信号发生器耦合的调制器，所述调制器被配置为扩展所述数据信号以限定扩展数据信号并且使用所述扩展数据信号对所述载波信号进行幅度调制，所述调制器还被配置为对所述载波进行相位调制信号。

49. 发明授权

US08045356B2 Memory modules having daisy chain wiring configurations and filters 有权
标题翻译：具有菊花链接线配置和滤波器的内存模块
公开(公告)号：US08045356B2
公开(公告)日：2011-10-25
申请号：US12395340
申请日：2009-02-27
申请人： Roy Greeff
发明人： Roy Greeff
IPC分类号： G11C5/06
CPC分类号： G06F13/4086
摘要： Examples described include memory units coupled to a controller using a daisy chain wiring configuration. A filter located between a first memory unit and the controller attenuates a particular frequency, which may improve ringback in a signal received at the memory units. In some examples, a quarter-wavelength stub is used to implement the filter. In some examples, signal components at 800 MHz may be attenuated by a stub, which may improve ringback.
摘要翻译：所描述的示例包括使用菊花链布线配置耦合到控制器的存储器单元。位于第一存储器单元和控制器之间的滤波器衰减特定频率，这可以改善在存储器单元处接收到的信号中的回铃。在一些示例中，使用四分之一波长短截线来实现滤波器。在一些示例中，800MHz处的信号分量可能被短截线衰减，这可能改善回铃。

50. 发明授权

US07982586B2 Wireless communication systems, interrogators and methods of communicating within a wireless communication system 失效
公开(公告)号：US07982586B2
公开(公告)日：2011-07-19
申请号：US11495845
申请日：2006-07-27
申请人： David K. Ovard , Roy Greeff
发明人： David K. Ovard , Roy Greeff
IPC分类号： H04Q5/22 , G05B19/00 , G06F7/00 , G08B5/00
CPC分类号： G06K7/0008
摘要： A wireless communication system includes an interrogator including a housing including circuitry configured to generate a forward link communication signal; communication circuitry configured to communicate the forward link communication signal; and a communication station remotely located with respect to the housing and configured to receive the forward link communication signal from the communication circuitry and to radiate a forward link wireless signal corresponding to the forward link communication signal; and at least one remote communication device configured to receive the forward link wireless signal. A method of communicating within a wireless communication system includes providing an interrogator and at least one remote communication device; generating a forward link communication signal using circuitry within a housing of the interrogator; communicating the forward link communication signal from the housing using communication circuitry; receiving the forward link communication signal from the communication circuitry within a communication station of the interrogator remotely located from the housing; radiating a forward link wireless signal corresponding to the forward link communication signal using the communication station; and receiving the forward link wireless signal within the at least one remote communication device.

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