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    32.
    发明专利
    未知

    公开(公告)号：ES2122970T3

    公开(公告)日：1999-01-01

    申请号：ES91901367

    申请日：1990-11-30

    Applicant: QUALCOMM INC

    Inventor： AMES WILLIAM G ,  JACOBS IRWIN M ,  WEAVER LINDSAY A JR ,  GILHOUSEN KLEIN S

    IPC: G01S5/12 ,  G01S5/14 ,  G01S13/87 ,  G01S19/00 ,  G01S19/01 ,  G01S19/38 ,  G01S19/48 ,  H04B7/185 ,  G01S5/00 ,  G01S1/02

    Abstract: A method and system for determining the position of an object using a fixed station and a plurality of earth orbit satellites whose positions are known. Separate periodic signals are transmitted from the fixed station via first and second satellites to the object whose postion is to be determined. The phase offset in periodic characteristics of the periodic signals as received from the first and second satellites is measured at the object. The phase offset corresponds to a relative time difference in propagation of the signals traveling two different paths to the object. The object transmits via the first satellite a return signal indicative of the measured relative time difference. This return signal is activated some time in the future according to the object local time, which is slaved to receipt of the periodic signal sent through the first satellite. This future time is the start of the particular time period as decided by the fixed station's schedule. At the fixed station, an instantaneous round trip delay, determined by the time offset of the current transmission clock time relative to the receive clock time of reception of the return signal, along with the measured relative time difference sent back on the return signal, is used to calculate the distances between the first and second satellites to the object. From these distances the position of the object is calculated.

    33.
    发明专利
    未知

    公开(公告)号：FI922629A

    公开(公告)日：1992-06-05

    申请号：FI922629

    申请日：1992-06-05

    Applicant: QUALCOMM INC

    Inventor： AMES WILLIAM G ,  JACOBS IRWIN M ,  WEAVER JR LINDSAY A ,  GILHOUSEN KLEIN S

    IPC: G01S5/12 ,  G01S5/14 ,  G01S13/87 ,  G01S19/00 ,  G01S19/01 ,  G01S19/38 ,  G01S19/48 ,  H04B7/185 ,  G01S

    Abstract: A method and system for determining the position of an object using a fixed station and a plurality of earth orbit satellites whose positions are known. Separate periodic signals are transmitted from the fixed station via first and second satellites to the object whose postion is to be determined. The phase offset in periodic characteristics of the periodic signals as received from the first and second satellites is measured at the object. The phase offset corresponds to a relative time difference in propagation of the signals traveling two different paths to the object. The object transmits via the first satellite a return signal indicative of the measured relative time difference. This return signal is activated some time in the future according to the object local time, which is slaved to receipt of the periodic signal sent through the first satellite. This future time is the start of the particular time period as decided by the fixed station's schedule. At the fixed station, an instantaneous round trip delay, determined by the time offset of the current transmission clock time relative to the receive clock time of reception of the return signal, along with the measured relative time difference sent back on the return signal, is used to calculate the distances between the first and second satellites to the object. From these distances the position of the object is calculated.

    34.
    发明专利
    未知

    公开(公告)号：NO922212D0

    公开(公告)日：1992-06-04

    申请号：NO922212

    申请日：1992-06-04

    Applicant: QUALCOMM INC

    Inventor： AMES WILLIAM G ,  JACOBS IRWIN M ,  WEAVER LINDSAY A ,  GILHOUSEN KLEIN S

    IPC: G01S5/12 ,  G01S5/14 ,  G01S13/87 ,  G01S19/00 ,  G01S19/01 ,  G01S19/38 ,  G01S19/48 ,  H04B7/185 ,  H04B

    Abstract: A method and system for determining the position of an object using a fixed station and a plurality of earth orbit satellites whose positions are known. Separate periodic signals are transmitted from the fixed station via first and second satellites to the object whose postion is to be determined. The phase offset in periodic characteristics of the periodic signals as received from the first and second satellites is measured at the object. The phase offset corresponds to a relative time difference in propagation of the signals traveling two different paths to the object. The object transmits via the first satellite a return signal indicative of the measured relative time difference. This return signal is activated some time in the future according to the object local time, which is slaved to receipt of the periodic signal sent through the first satellite. This future time is the start of the particular time period as decided by the fixed station's schedule. At the fixed station, an instantaneous round trip delay, determined by the time offset of the current transmission clock time relative to the receive clock time of reception of the return signal, along with the measured relative time difference sent back on the return signal, is used to calculate the distances between the first and second satellites to the object. From these distances the position of the object is calculated.

    LOW COST CABLELESS GROUND STATION ANTENNA FOR MEDIUM EARTH ORBIT SATELLITE COMMUNICATION SYSTEMS
    36.
    发明申请
    LOW COST CABLELESS GROUND STATION ANTENNA FOR MEDIUM EARTH ORBIT SATELLITE COMMUNICATION SYSTEMS 审中-公开
    低成本电缆无线地面天线中心地球卫星通信系统

    公开(公告)号：WO2015084464A3

    公开(公告)日：2015-08-06

    申请号：PCT/US2014056672

    申请日：2014-09-19

    Applicant: QUALCOMM INC

    Inventor： OZAKI ERNEST TADASHI ,  AMES WILLIAM G ,  JALALI AHMAD

    IPC: H01Q3/12 ,  G01S19/24 ,  H01Q3/18 ,  H01Q19/17 ,  H01Q25/00

    CPC classification number: G01S19/24 ,  H01Q3/12 ,  H01Q3/18 ,  H01Q19/17 ,  H01Q25/007

    Abstract: A ground station antenna including a torus shaped reflector having multiple feed points along a focal arc in front of the reflector. The ground station antenna includes transceiver feeds having their electrical phase centers located on the focal arc and supported by a rotating feed platform. The transceiver feeds are configured to simultaneously track rising and falling satellites when the platform rotates. The ground station antenna further includes a wireless power receiver coupled to the transceiver feeds to power the transceiver feeds. The ground station antenna further includes a wireless signal interface coupled to the transceiver feeds to communicate signals with a base unit to perform subsequent processing.

    Abstract translation: 地面站天线包括环形反射器，其具有沿反射器前方的焦点弧的多个馈电点。 地面站天线包括收发器馈电，其馈电位置位于焦点弧上并由旋转进给平台支撑。 收发器馈送被配置为当平台旋转时同时跟踪上升和下降的卫星。 地面站天线还包括耦合到收发器馈送以为收发器馈电供电的无线电力接收器。 地面站天线还包括耦合到收发器馈送的无线信号接口，以与基本单元通信信号以执行后续处理。

    METHOD AND APPARATUS FOR CROSS POLARIZED ISOLATION IN A COMMUNICATION SYSTEM
    37.
    发明申请
    METHOD AND APPARATUS FOR CROSS POLARIZED ISOLATION IN A COMMUNICATION SYSTEM 审中-公开
    通信系统中交叉极化隔离的方法和装置

    公开(公告)号：WO0028679A8

    公开(公告)日：2000-08-17

    申请号：PCT/US9926392

    申请日：1999-11-09

    Applicant: QUALCOMM INC

    Inventor： ANTONIO FRANKLIN P ,  SCHIFF LEONARD N ,  AMES WILLIAM G

    IPC: H04J11/00 ,  H04B7/06 ,  H04B7/10 ,  H04B7/185 ,  H04J3/00

    CPC classification number: H04B7/18534 ,  H04B7/10

    Abstract: The information signals are transferred to end users, customers, or service subscribers (116, 118) using at least two signal sources, generally satellites (104, 106), and polarized radiation. Two polarization modes are employed, with the preferred modes being left-hand and right-hand circularly polarized radiation, although other polarization modes may be employed. The total number of channels can be divided among the polarization modes and transferred to end users either through the use of polarization switching in the receivers (522) to selectively switch between the satellites, or by switching elements in the satellites (sources) to switch between polarization modes used for transmission.

    Abstract translation: 使用至少两个信号源（通常是卫星（104,106））和偏振辐射，将信息信号传送到终端用户，客户或服务订户（116,118）。 采用两种偏振模式，其中优选的模式是左旋和右旋圆偏振辐射，尽管可以采用其它偏振模式。 信道的总数可以在偏振模式之间分配并且通过使用接收器（522）中的偏振切换来转移到最终用户，以选择性地在卫星之间切换，或者通过在卫星（源）之间切换元件以在 用于传输的偏振模式。

    OVERLAYING AN AIR TO GROUND COMMUNICATION SYSTEM ON SPECTRUM ASSIGNED TO SATELLITE SYSTEMS
    39.
    发明申请
    OVERLAYING AN AIR TO GROUND COMMUNICATION SYSTEM ON SPECTRUM ASSIGNED TO SATELLITE SYSTEMS 审中-公开
    在分配给卫星系统的频谱上覆盖地面通信系统的空气

    公开(公告)号：WO2013025932A3

    公开(公告)日：2013-05-16

    申请号：PCT/US2012051201

    申请日：2012-08-16

    Applicant: QUALCOMM INC ,  JALALI AHMAD ,  SCHIFF LEONARD N ,  AMES WILLIAM G

    Inventor： JALALI AHMAD ,  SCHIFF LEONARD N ,  AMES WILLIAM G

    IPC: H04B7/185

    CPC classification number: H04B7/18508 ,  H04B7/18502 ,  H04W16/14 ,  H04W36/20 ,  H04W36/30

    Abstract: An air to ground communication system provides internet access to aircraft from ground based stations. The air to ground system shares spectrum with uplink portions of a satellite communication spectrum. Interference mitigation techniques are employed to avoid interference between the ground based communications and satellite communications. Fade mitigation techniques are employed to provide communication to aircraft at low angles of elevation in the presence of rain.

    Abstract translation: 空对地通信系统提供从地面站到飞机的互联网接入。 空对地系统与卫星通信频谱的上行链路部分共享频谱。 采用干扰抑制技术来避免地面通信和卫星通信之间的干扰。 采用衰减消减技术来在雨天存在的情况下以低仰角提供与飞机的通信。

    MIXED REUSE OF FEEDER LINK AND USER LINK BANDWIDTH
    40.
    发明申请
    MIXED REUSE OF FEEDER LINK AND USER LINK BANDWIDTH 审中-公开
    供应链链接和用户链接带的混合重用

    公开(公告)号：WO2005029729A2

    公开(公告)日：2005-03-31

    申请号：PCT/US2004030963

    申请日：2004-09-21

    Applicant: QUALCOMM INC ,  AMES WILLIAM G ,  SCHIFF LEONARD N

    Inventor： AMES WILLIAM G ,  SCHIFF LEONARD N

    IPC: H04B7/185 ,  H04Q7/20

    CPC classification number: H04B7/18515

    Abstract: An apparatus and method for a wireless communication system in which a forward/uplink portion and a return/uplink portion are assigned within an available frequency bandwidth is disclosed. More particularly, a service area is divided into multiple regions. The assignment of the forward/uplink portion of the return/uplink portion is shuffled in the multiple regions. The apparatus and method may be implemented in a multi-beam wireless communication system.

    Abstract translation: 公开了一种无线通信系统的装置和方法，其中在可用频带内分配了前向/上行链路部分和返回/上行链路部分。 更具体地，服务区域被分成多个区域。 返回/上行链路部分的前向/上行链路部分的分配在多个区域中进行混洗。 该装置和方法可以在多波束无线通信系统中实现。

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