-
1.发明申请System for Field Testing Wireless Devices With Reduced Multipath Interference 有权具有减少多路径干扰的无线设备的现场测试系统公开(公告)号：US20120139571A1
公开(公告)日：2012-06-07
申请号：US12959350
申请日：2010-12-02
IPC分类号： G01R31/00
CPC分类号： G01R29/0821 , H04W24/08
摘要： A portable test chamber with an open top may serve as a field testing apparatus for wireless testing of electronic devices. A wireless device under test may be mounted within a cavity in the test chamber. The cavity may be surrounded by a dielectric lining of anechoic material. A layer of electromagnetic shielding such as metal foil may cover the outer surfaces of the dielectric lining. The chamber may have a box shape with a rectangular opening at its top. Satellite navigation system signals or other wireless signals may be received through the opening at the top of the test chamber during testing. The electromagnetic shielding may reduce the effects of multipath interference during field tests.
摘要翻译： 具有开口顶部的便携式测试室可用作电子设备的无线测试的现场测试装置。 被测试的无线设备可以安装在测试室中的空腔内。 空腔可以被消声材料的电介质衬里包围。 诸如金属箔的电磁屏蔽层可以覆盖电介质衬里的外表面。 该室可以具有在其顶部具有矩形开口的盒形。 卫星导航系统信号或其他无线信号可以在测试期间通过测试室顶部的开口接收。 电磁屏蔽可以减少现场测试时多径干扰的影响。
-
2.发明授权System for field testing wireless devices with reduced multipath interference 有权具有减少多路径干扰的无线设备的现场测试系统公开(公告)号：US09213053B2
公开(公告)日：2015-12-15
申请号：US12959350
申请日：2010-12-02
CPC分类号： G01R29/0821 , H04W24/08
摘要： A portable test chamber with an open top may serve as a field testing apparatus for wireless testing of electronic devices. A wireless device under test may be mounted within a cavity in the test chamber. The cavity may be surrounded by a dielectric lining of anechoic material. A layer of electromagnetic shielding such as metal foil may cover the outer surfaces of the dielectric lining. The chamber may have a box shape with a rectangular opening at its top. Satellite navigation system signals or other wireless signals may be received through the opening at the top of the test chamber during testing. The electromagnetic shielding may reduce the effects of multipath interference during field tests.
摘要翻译： 具有开口顶部的便携式测试室可用作电子设备的无线测试的现场测试装置。 被测试的无线设备可以安装在测试室中的空腔内。 空腔可以被消声材料的电介质衬里包围。 诸如金属箔的电磁屏蔽层可以覆盖电介质衬里的外表面。 该室可以具有在其顶部具有矩形开口的盒形。 卫星导航系统信号或其他无线信号可以在测试期间通过测试室顶部的开口接收。 电磁屏蔽可以减少现场测试时多径干扰的影响。
-
公开(公告)号：US08862060B2
公开(公告)日：2014-10-14
申请号：US13397440
申请日：2012-02-15
申请人： Robert W. Mayor , Joseph Hakim
发明人： Robert W. Mayor , Joseph Hakim
CPC分类号： H04B1/3805 , H04B1/525 , H04B15/04
摘要： An electronic device may include sensitive circuitry such as radio-frequency receiver circuitry. A noise source may produce radio-frequency interference that can disrupt operation of the sensitive circuitry. The noise source may include a first transmitter such as a cellular telephone transmitter and as second transmitter such as a wireless local area network transmitter. Interference may be produced by simultaneous operation of the first and second transmitters. The radio-frequency receiver circuitry may be satellite navigation system receiver circuitry that includes one or more satellite navigation receivers. The impact of interference may be reduced by blanking the satellite navigation system receiver, by imposing a duty cycle limitation on the second transmitter, by switching between alternative receivers in the satellite navigation system receiver circuitry, by using an interference-dependent cross-correlation protection scheme, or by using a combination of these schemes.
摘要翻译： 电子设备可以包括诸如射频接收器电路的敏感电路。 噪声源可能产生可能会中断敏感电路的工作的射频干扰。 噪声源可以包括诸如蜂窝电话发射机的第一发射机和诸如无线局域网发射机的第二发射机。 可以通过第一和第二发射机的同时操作来产生干扰。 射频接收机电路可以是包括一个或多个卫星导航接收机的卫星导航系统接收机电路。 通过在卫星导航系统接收机电路中的替代接收机之间切换，通过使用干扰相关互相关保护方案，通过对第二发射机施加占空比限制来消除卫星导航系统接收机，可以减少干扰的影响 ，或通过使用这些方案的组合。
-
公开(公告)号：US20130210364A1
公开(公告)日：2013-08-15
申请号：US13397440
申请日：2012-02-15
申请人： Robert W. Mayor , Joseph Hakim
发明人： Robert W. Mayor , Joseph Hakim
IPC分类号： H04B15/00
CPC分类号： H04B1/3805 , H04B1/525 , H04B15/04
摘要： An electronic device may include sensitive circuitry such as radio-frequency receiver circuitry. A noise source may produce radio-frequency interference that can disrupt operation of the sensitive circuitry. The noise source may include a first transmitter such as a cellular telephone transmitter and as second transmitter such as a wireless local area network transmitter. Interference may be produced by simultaneous operation of the first and second transmitters. The radio-frequency receiver circuitry may be satellite navigation system receiver circuitry that includes one or more satellite navigation receivers. The impact of interference may be reduced by blanking the satellite navigation system receiver, by imposing a duty cycle limitation on the second transmitter, by switching between alternative receivers in the satellite navigation system receiver circuitry, by using an interference-dependent cross-correlation protection scheme, or by using a combination of these schemes.
摘要翻译： 电子设备可以包括诸如射频接收器电路的敏感电路。 噪声源可能产生可能会中断敏感电路的工作的射频干扰。 噪声源可以包括诸如蜂窝电话发射机的第一发射机和诸如无线局域网发射机的第二发射机。 可以通过第一和第二发射机的同时操作来产生干扰。 射频接收机电路可以是包括一个或多个卫星导航接收机的卫星导航系统接收机电路。 通过在卫星导航系统接收机电路中的替代接收机之间切换，通过使用干扰相关互相关保护方案，通过对第二发射机施加占空比限制来消除卫星导航系统接收机，可以减少干扰的影响 ，或通过使用这些方案的组合。
-
公开(公告)号：US06992986B2
公开(公告)日：2006-01-31
申请号：US10719891
申请日：2003-11-21
申请人： Majidi-Ahy Reza , Joseph Hakim , Subir Varma
发明人： Majidi-Ahy Reza , Joseph Hakim , Subir Varma
IPC分类号： G01R31/08
CPC分类号： H04W72/005 , H04L1/0001 , H04L1/0002 , H04L1/0003 , H04L1/0007 , H04L1/0009 , H04L1/0015 , H04L1/1816 , H04L1/1825 , H04L1/1854 , H04L1/1867 , H04L1/1893 , H04L2001/0093 , H04W28/0252 , H04W28/18 , H04W52/04 , H04W72/0413 , H04W72/082 , H04W76/40 , H04W88/08
摘要： The invention provides a method and system for adaptive point to multipoint wireless communication. The wireless physical layer and the wireless media-access-control (MAC) layer collectively include a set of parameters, which are adaptively modified by a base station controller for communication with a plurality of customer premises equipment. The base station controller adjusts communication with each customer premises equipment individually and adaptively in response to changes in characteristics of communication, including physical characteristics, amount of communication traffic, and nature of application for the communication traffic.
-
公开(公告)号：US08665148B2
公开(公告)日：2014-03-04
申请号：US13098068
申请日：2011-04-29
申请人： Joseph Hakim , Matt A. Mow
发明人： Joseph Hakim , Matt A. Mow
摘要： An electronic device such as a cellular telephone may include transceiver circuitry for handling wireless communications. The transceiver circuitry may include a transceiver such as a cellular telephone transceiver or a wireless local area network receiver and may include a satellite positioning system receiver. Radio-frequency circuitry may be used to couple the transceiver circuitry to antenna structures. When operating the transceiver in different modes of operation, the radio-frequency circuitry may be adjusted to optimize performance. Adjustments to the radio-frequency circuitry may impose phase offsets on satellite positioning system signals that are received through the antenna structures and radio-frequency circuitry. These phase offsets which would otherwise cause degradation in the satellite positioning system receiver can be compensated by applying stored compensating phase offset values to the satellite positioning system receiver during operation.
摘要翻译： 诸如蜂窝电话的电子设备可以包括用于处理无线通信的收发机电路。 收发器电路可以包括诸如蜂窝电话收发机或无线局域网接收机的收发机，并且可以包括卫星定位系统接收机。 射频电路可用于将收发器电路耦合到天线结构。 当在不同操作模式下操作收发器时，可以调整射频电路以优化性能。 对无线电频率电路的调整可以对通过天线结构和射频电路接收的卫星定位系统信号施加相位偏移。 否则会导致卫星定位系统接收机的退化的这些相位偏移可以通过在操作期间将所存储的补偿相位偏移值应用于卫星定位系统接收机来进行补偿。
-
公开(公告)号：USRE44244E1
公开(公告)日：2013-05-28
申请号：US12816928
申请日：2010-06-16
CPC分类号： H04L1/0002 , H04B17/309 , H04B17/336 , H04L1/0003 , H04L1/0009 , H04L1/002 , H04L1/0034 , H04L1/16 , H04L1/1867 , Y02D50/10
摘要： A system that adapts wireless link parameters for a wireless communication link. A measure is determined of errors occurring in communication over a wireless link. In a case that the measure of errors corresponds to more errors than a first predetermined threshold, communication changes from a first set of wireless link parameters to a second set of wireless link parameters. The second set of wireless link parameters corresponds to higher error tolerance than the first set of wireless link parameters. In a case that the measure of errors corresponds to fewer errors than a second predetermined threshold, communication changes from the first set of wireless link parameters to a third set of wireless link parameters. The third set of wireless link parameters corresponds to lower error tolerance than the first set of wireless link parameters. Preferably, the measure of errors is determined by monitoring a number of NACK messages and a number of ACK messages that occur. It is determined that the measure of errors corresponds to more errors than the first predetermined threshold when more than a predetermined number of NACK messages occur in succession. It is determined that the measure of errors corresponds to fewer errors than the second predetermined threshold when more than a predetermined number of ACK messages occur in succession.
-
公开(公告)号：US08432817B2
公开(公告)日：2013-04-30
申请号：US11731732
申请日：2007-03-30
申请人： Reza Majidi-Ahy , Joseph Hakim , Subir Varma
发明人： Reza Majidi-Ahy , Joseph Hakim , Subir Varma
CPC分类号： H04W72/005 , H04L1/0001 , H04L1/0002 , H04L1/0003 , H04L1/0007 , H04L1/0009 , H04L1/0015 , H04L1/1816 , H04L1/1825 , H04L1/1854 , H04L1/1867 , H04L1/1893 , H04L2001/0093 , H04W28/0252 , H04W28/18 , H04W52/04 , H04W72/0413 , H04W72/082 , H04W76/40 , H04W88/08
摘要： The invention provides a method and system for adaptive point to multipoint wireless communication. The wireless physical layer and the wireless media-access-control (MAC) layer collectively include a set of parameters, which are adaptively modified by a base station controller for communication with a plurality of customer premises equipment. The base station controller adjusts communication with each customer premises equipment individually and adaptively in response to changes in characteristics of communication, including physical characteristics, amount of communication traffic, and nature of application for the communication traffic.
-
公开(公告)号：US20110273331A1
公开(公告)日：2011-11-10
申请号：US13098068
申请日：2011-04-29
申请人： Joseph Hakim , Matt A. Mow
发明人： Joseph Hakim , Matt A. Mow
IPC分类号： G01S19/25
摘要： An electronic device such as a cellular telephone may include transceiver circuitry for handling wireless communications. The transceiver circuitry may include a transceiver such as a cellular telephone transceiver or a wireless local area network receiver and may include a satellite positioning system receiver. Radio-frequency circuitry may be used to couple the transceiver circuitry to antenna structures. When operating the transceiver in different modes of operation, the radio-frequency circuitry may be adjusted to optimize performance. Adjustments to the radio-frequency circuitry may impose phase offsets on satellite positioning system signals that are received through the antenna structures and radio-frequency circuitry. These phase offsets which would otherwise cause degradation in the satellite positioning system receiver can be compensated by applying stored compensating phase offset values to the satellite positioning system receiver during operation.
摘要翻译： 诸如蜂窝电话的电子设备可以包括用于处理无线通信的收发机电路。 收发器电路可以包括诸如蜂窝电话收发机或无线局域网接收机的收发机，并且可以包括卫星定位系统接收机。 射频电路可用于将收发器电路耦合到天线结构。 当在不同操作模式下操作收发器时，可以调整射频电路以优化性能。 对无线电频率电路的调整可以对通过天线结构和射频电路接收的卫星定位系统信号施加相位偏移。 否则会导致卫星定位系统接收机的退化的这些相位偏移可以通过在操作期间将所存储的补偿相位偏移值应用于卫星定位系统接收机来进行补偿。
-
公开(公告)号：US07388919B2
公开(公告)日：2008-06-17
申请号：US11231537
申请日：2005-09-20
CPC分类号： H04L1/0002 , H04B17/309 , H04B17/336 , H04L1/0003 , H04L1/0009 , H04L1/002 , H04L1/0034 , H04L1/16 , H04L1/1867 , Y02D50/10
摘要： A system that adapts wireless link parameters for a wireless communication link. A measure is determined of errors occurring in communication over a wireless link. In a case that the measure of errors corresponds to more errors than a first predetermined threshold, communication changes from a first set of wireless link parameters to a second set of wireless link parameters. The second set of wireless link parameters corresponds to higher error tolerance than the first set of wireless link parameters. In a case that the measure of errors corresponds to fewer errors than a second predetermined threshold, communication changes from the first set of wireless link parameters to a third set of wireless link parameters. The third set of wireless link parameters corresponds to lower error tolerance than the first set of wireless link parameters. Preferably, the measure of errors is determined by monitoring a number of NACK messages and a number of ACK messages that occur. It is determined that the measure of errors corresponds to more errors than the first predetermined threshold when more than a predetermined number of NACK messages occur in succession. It is determined that the measure of errors corresponds to fewer errors than the second predetermined threshold when more than a predetermined number of ACK messages occur in succession.
摘要翻译： 适应无线通信链路的无线链路参数的系统。 确定通过无线链路进行的通信中发生的错误的度量。 在错误测量对应于比第一预定阈值更多的错误的情况下，通信从第一组无线链路参数改变为第二组无线链路参数。 第二组无线链路参数对应于比第一组无线链路参数更高的误差容限。 在错误测量对应于比第二预定阈值更少的错误的情况下，通信从第一组无线链路参数改变为第三组无线链路参数。 第三组无线链路参数对应于比第一组无线链路参数更低的误差容限。 优选地，通过监视多个NACK消息和发生的ACK消息的数量来确定错误的度量。 当连续发生多于一个预定数量的NACK消息时，确定错误度量对应于比第一预定阈值更多的错误。 当连续发生多于一个预定数量的ACK消息时，确定错误度量对应于比第二预定阈值更少的错误。
-
-
-
-
-
-
-
-
-
搜索结果
20 条记录 (耗时 0.022 秒)
