公开(公告)号：US20130309961A1

公开(公告)日：2013-11-21

申请号：US12657188

申请日：2010-01-14

申请人： Wah Lim ,  Jeremiah Salvatore

发明人： Wah Lim ,  Jeremiah Salvatore

IPC分类号： H04B7/185

CPC分类号： H04B7/1851 ,  H04B7/18517 ,  H04B7/195

摘要： An inexpensive method and system for maintaining communication between fixed receivers on the earth surface having fixed antennas and inclined orbit geostationary satellites. In preferred embodiments the fixed antennas of each receiver are provided with more than one feed horn (such as three or more feed horns) each positioned to form a beam with its antenna in a slightly different direction from beams of the other feed horns in the north-south direction. An algorithm is developed based on the known daily swings of the inclined orbit geostationary satellite which determines which of the feed horns provides a beam providing the maximum signal from the satellite.

摘要翻译： 一种用于维持具有固定天线和倾斜轨道对地静止卫星的地球表面固定接收机之间的通信的廉价方法和系统。 在优选实施例中，每个接收器的固定天线设置有多于一个馈电喇叭（例如三个或更多个馈电喇叭），每个馈电喇叭定位成与其天线形成一个梁，其方向与北部另一馈电喇叭的波束方向略有不同 - 方向。 基于倾斜轨道对地静止卫星的已知日常波动开发算法，其确定哪个馈送喇叭提供从卫星提供最大信号的波束。

公开(公告)号：US20130217394A1

公开(公告)日：2013-08-22

申请号：US13852735

申请日：2013-03-28

申请人： Nam-Gun KIM ,  Young-Lak KIM ,  Hyun-Wook KIM ,  Chang-Moon HAN

发明人： Nam-Gun KIM ,  Young-Lak KIM ,  Hyun-Wook KIM ,  Chang-Moon HAN

IPC分类号： H04W36/18

CPC分类号： H04W36/18 ,  H04B7/195 ,  H04W36/14 ,  H04W36/30 ,  H04W36/36 ,  H04W88/06

摘要： Disclosed is a multi-mode multi-band mobile communication terminal and a mode switching method thereof wherein a mode switching can be performed between an asynchronous network and a synchronous network by minimizing interruption in communication. According to the switching method of a multi-mode multi-band mobile communication terminal, the power of a signal received from an asynchronous network or a synchronous network is measured and the measured power of the received signal drives a modem portion, thereby switching the mode of the mobile communication terminal.

摘要翻译： 公开了一种多模式多频带移动通信终端及其模式切换方法，其中可以通过最小化通信中断来在异步网络和同步网络之间执行模式切换。 根据多模式多频带移动通信终端的切换方法，测量从异步网络或同步网络接收的信号的功率，并且测量的接收信号的功率驱动调制解调器部分，从而切换模式 的移动通信终端。

公开(公告)号：US20100108818A1

公开(公告)日：2010-05-06

申请号：US12606145

申请日：2009-10-26

申请人： Neil E. GOODZEIT

发明人： Neil E. GOODZEIT

IPC分类号： B64G1/10

CPC分类号： B64G1/1085 ,  B64G1/1007 ,  B64G1/242 ,  H04B7/195

摘要： A constellation, including a plurality of spacecraft, including a first, second and third spacecraft, each of the plurality of spacecraft including a broadcast capability, and each of the plurality of spacecraft in its own approximately 24-hour orbit. Each of the orbits has a substantially teardrop-shaped or oval-shaped ground track, is optimized based upon elevation angle or probability of signal availability, and has an apogee longitude of approximately 90° west to approximately 100° west. Each of the orbits has a semi-major axis of approximately 42,164 kilometers, an argument of perigee of approximately 270°, an inclination of approximately 40° to approximately 60°, and an eccentricity of approximately 0.16 to approximately 0.4. The orbits of each of the plurality of spacecraft are selected to bring each of the spacecraft to apogee at time increments of approximately eight hours.

摘要翻译： 包括多个航天器的星座，包括第一，第二和第三航天器，所述多个航天器中的每一个包括广播能力，并且所述多个航天器中的每一个在其自己的大约24小时的轨道中。 每个轨道具有基本上泪珠形或椭圆形的地面轨道，其基于仰角或信号可用性的概率进行优化，并且具有西约西约90°至约100°的远地点经度。 每个轨道具有大约42,164公里的半长轴，近地点的约270°的倾角，大约40°至大约60°的倾斜，以及大约0.16到大约0.4的偏心。 选择多个航天器中的每一个的轨道，以使每个航天器以大约八小时的时间增量进入远地点。

公开(公告)号：US20070280160A1

公开(公告)日：2007-12-06

申请号：US10591822

申请日：2005-03-04

申请人： Nam-Gun Kim ,  Young-Lak Kim ,  Hyun-Wook Kim ,  Chan-Moon Han

发明人： Nam-Gun Kim ,  Young-Lak Kim ,  Hyun-Wook Kim ,  Chan-Moon Han

IPC分类号： H04Q7/00

CPC分类号： H04W36/18 ,  H04B7/195 ,  H04W36/14 ,  H04W36/30 ,  H04W36/36 ,  H04W88/06

摘要： Disclosed is a multi-mode multi-band mobile communication terminal and a mode switching method thereof wherein a mode switching can be performed between an asynchronous network and a synchronous network by minimizing interruption in communication. According to the switching method of a multi-mode multi-band mobile communication terminal, the power of a signal received from an asynchronous network or a synchronous network is measured and the measured power of the received signal drives a modem portion, thereby switching the mode of the mobile communication terminal.

摘要翻译： 公开了一种多模式多频带移动通信终端及其模式切换方法，其中可以通过最小化通信中断来在异步网络和同步网络之间执行模式切换。 根据多模式多频带移动通信终端的切换方法，测量从异步网络或同步网络接收的信号的功率，并且测量的接收信号的功率驱动调制解调器部分，从而切换模式 的移动通信终端。

公开(公告)号：US20060145017A1

公开(公告)日：2006-07-06

申请号：US11030282

申请日：2005-01-07

申请人： Neil Goodzeit

发明人： Neil Goodzeit

IPC分类号： B64G1/10

CPC分类号： B64G1/1085 ,  B64G1/1007 ,  B64G1/242 ,  H04B7/195

摘要： A constellation, including a plurality of spacecraft, including a first, second and third spacecraft, each of the plurality of spacecraft including a broadcast capability, and each of the plurality of spacecraft in its own approximately 24-hour orbit. Each of the orbits has a substantially teardrop-shaped or oval-shaped ground track, is optimized based upon elevation angle or probability of signal availability, and has an apogee longitude of approximately 90° west to approximately 100° west. Each of the orbits has a semi-major axis of approximately 42,164 kilometers, an argument of perigee of approximately 270°, an inclination of approximately 40° to approximately 60°, and an eccentricity of approximately 0.16 to approximately 0.4. The orbits of each of the plurality of spacecraft are selected to bring each of the spacecraft to apogee at time increments of approximately eight hours.

摘要翻译： 包括多个航天器的星座，包括第一，第二和第三航天器，所述多个航天器中的每一个包括广播能力，并且所述多个航天器中的每一个在其自己的大约24小时的轨道中。 每个轨道具有基本上泪珠形或椭圆形的地面轨道，其基于仰角或信号可用性的概率进行优化，并且具有西约西约90°至约100°的远地点经度。 每个轨道具有大约42,164公里的半长轴，近地点的约270°的倾角，大约40°至大约60°的倾斜，以及大约0.16到大约0.4的偏心。 选择多个航天器中的每一个的轨道，以使每个航天器以大约八小时的时间增量进入远地点。

公开(公告)号：US06866231B2

公开(公告)日：2005-03-15

申请号：US10153272

申请日：2002-05-21

申请人： Robert P. Higgins

发明人： Robert P. Higgins

IPC分类号： B64G1/10 ,  B64G1/24 ,  H04B7/185 ,  H04B7/195 ,  B64G1/22 ,  H04B15/00

CPC分类号： H04B7/195 ,  B64G1/1007 ,  B64G1/1085 ,  B64G1/242 ,  H04B7/18513

摘要： Boeing achieves satellite diversity by having a large discrimination angle for a MEO constellation of communications satellites to limit interference in the Ku-band with GSO communications systems. Each satellite entering an exclusion zone over a GSO ground station terminates all transmissions to provide EPFD within acceptable limits. The Boeing MEO constellation preferably comprises 20 satellites, 5 in each orbit. The four orbits are inclined at about 57° with respect to the equator. Services include an Integrated Digital Service (IDS) and Backhaul Data Service (BDS) to accommodate the needs of different users.

摘要翻译： 波音公司通过对通信卫星的MEO星座具有较大的辨别角来实现卫星分集，以限制使用GSO通信系统的Ku波段的干扰。 通过GSO地面站进入禁区的每颗卫星终止所有传输，以将EPFD提供在可接受的限度内。 波音MEO星座优选地包括20个卫星，每个轨道中有5颗卫星。 四个轨道相对于赤道倾斜约57°。 服务包括综合数字服务（IDS）和回程数据服务（BDS），以适应不同用户的需求。

公开(公告)号：US06795687B1

公开(公告)日：2004-09-21

申请号：US09235942

申请日：1999-01-22

申请人： David Castiel ,  John Draim ,  Kenneth F. Manning

发明人： David Castiel ,  John Draim ,  Kenneth F. Manning

IPC分类号： H04B7185

CPC分类号： B64G1/1007 ,  B64G1/1085 ,  B64G1/242 ,  H04B7/195

摘要： An array of satellites which is virtually geosynchronous. Each satellite is in an elliptical orbit. The apogee portion of each elliptical orbit is over one of the regions of interest. Each satellite is virtually geosynchronous during its apogee portion, over the region of interest. When it leaves the apogee portion, the satellite goes to another of the regions of interest, and acts virtually geosynchronous over that region.

摘要翻译： 几乎几乎是同步的卫星阵列。 每颗卫星处于椭圆轨道。 每个椭圆轨道的远地点部分超过感兴趣区域之一。 每个卫星在其远地点部分，在感兴趣的区域几乎是地球同步的。 当它离开远地点部分时，卫星转到另一个感兴趣的区域，并在该区域上几乎是地球同步的。

公开(公告)号：US06714521B2

公开(公告)日：2004-03-30

申请号：US09750047

申请日：2000-12-29

申请人： John E. Draim

发明人： John E. Draim

IPC分类号： H04B7185

CPC分类号： B64G1/1085 ,  B64G1/1007 ,  B64G1/242 ,  H04B7/195

摘要： Provided is a system and method for implementing a constellation of satellites in inclined elliptical orbits that provides simplified satellite tracking for ground stations on the earth. The satellite orbits form a pair of repeating ground tracks around the earth. In each ground track the satellites operate only in active arcs well above or below the equator, emulating many of the characteristics of geostationary satellites. The parameters of the satellite orbits are adjusted so that the end points of the active arcs in the two ground tracks coincide; the turn-off point of an active arc in one ground track being the same as the turn-on point of an active arc in the other. For a ground station served by the satellites in these arcs, the active satellites appear to be moving slowly in one direction around a closed, teardrop-shaped path in the sky, at a generally high elevation angle.

摘要翻译： 提供了一种用于实现倾斜椭圆轨道中的卫星星座的系统和方法，其为地球上的地面站提供简化的卫星跟踪。 卫星轨道在地球周围形成一对重复的地面轨道。 在每个地面轨道中，卫星只能在远低于或低于赤道的有效弧段内运行，模拟了地球静止卫星的许多特征。 调整卫星轨道的参数，使得两个地面轨道中的有效弧的终点重合; 一个地面轨道中的有效弧的关闭点与另一个地面轨道中的有效弧的开启点相同。 对于由这些电弧中的卫星服务的地面站，主动卫星似乎在一个方向上沿着一个方向缓慢移动，围绕天空中的一个封闭的泪珠状路径，大致高的仰角。

公开(公告)号：US20040056148A1

公开(公告)日：2004-03-25

申请号：US10657452

申请日：2003-09-05

申请人： Hughes Electronics Corporation

发明人： Frank Taormina ,  Donald C. D. Chang ,  Kar W. Yung ,  David C. Cheng ,  William W. Mayfield ,  John Novak III ,  Arthur W. Wang

IPC分类号： B64C027/22 ,  B64C039/00

CPC分类号： H04B7/195

摘要： A satellite communication system has a first deployment of a plurality of satellites deployed in a medium earth orbit and two later deployments of a plurality of satellites deployed in the medium earth orbit. The first deployment is, spaced so that the second deployment may be easily deployed and interleaved into the first deployment. A ground terminal is used for communicating with the satellites in the first and second deployments.

摘要翻译： 卫星通信系统首先部署在中等地球轨道上部署的多个卫星，以及部署在中等地球轨道上的多个卫星的两个后续部署。 第一次部署间隔开，以便第二次部署可以轻松地部署和交错到第一个部署中。 接地终端用于与第一和第二部署中的卫星进行通信。

公开(公告)号：US06678519B2

公开(公告)日：2004-01-13

申请号：US09892132

申请日：2001-06-25

申请人： David Castiel ,  John Draim ,  Kenneth F. Manning

发明人： David Castiel ,  John Draim ,  Kenneth F. Manning

IPC分类号： H04Q720

CPC分类号： B64G1/242 ,  B64G1/1007 ,  B64G1/1085 ,  B64G1/428 ,  H04B7/18576 ,  H04B7/195

摘要： An elliptical satellite communication system including a constellation of satellites which orbit the earth at a height less than that necessary for geosynchronous orbits but which simulate the characteristics of geosynchronous orbits. The satellites' velocity near the apogee portion of their orbit approximates the rotational velocity of the earth, and during that period appear to hover over the earth. The ground stations on the earth always communicate with a satellite at or near its apogee, and hence that satellite appears to the ground station to hover over the earth. During the times when the satellite is outside the apogee portion, its communication is shut off to prevent any possibility of interfering with geosynchronous satellites and its power supply is used to charge a battery on the satellite. Thus, the power supply of the system can be reduced by an amount equivalent to the percentage of time the satellite is not used.

摘要翻译： 一种椭圆形卫星通信系统，包括卫星星座，该卫星的星座在地球同步轨道所必需的高度上运行，但模拟地球同步轨道的特征。 卫星在其轨道远地点附近的速度接近于地球的旋转速度，在此期间似乎悬停在地球上。 地球上的地面站始终与其远地点或其附近的卫星通信，因此该卫星在地面站出现以悬停在地球上。 在卫星在远地点之外的时候，其通信被关闭，以防止干扰地球同步卫星的任何可能性，并且其电源用于对卫星上的电池充电。 因此，系统的电源可以减少相当于不使用卫星的时间百分比的量。