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1. 发明授权

US06977621B2 Vehicle mounted satellite antenna system with inverted L-shaped waveguide 失效
标题翻译：车载卫星天线系统具有倒置的L形波导
公开(公告)号：US06977621B2
公开(公告)日：2005-12-20
申请号：US10752796
申请日：2004-01-07
申请人： Kenneth C. Kelly , Wenzhang Wang , James June-Ming Wang
发明人： Kenneth C. Kelly , Wenzhang Wang , James June-Ming Wang
IPC分类号： H01Q1/32 , H01Q13/10
CPC分类号： H01Q3/26 , H01Q1/3275 , H01Q13/0275 , H01Q13/22 , H01Q21/005
摘要： The present invention relates to a vehicle mountable satellite antenna as defined in the claims which is operable while the vehicle is in motion. The satellite antenna of the present invention can be installed on top of (or embedded into) the roof of a vehicle. The antenna is capable of providing high gain and a narrow antenna beam for aiming at a satellite direction and enabling broadband communication to vehicle. The present invention provides a vehicle mounted satellite antenna which has low axial ratio, high efficiency and has low grating lobes gain. The vehicle mounted satellite antenna of the present invention provides two simultaneous polarization states. In one embodiment, an inverted L-shaped waveguide has a first wall extending vertically downward from a top surface. The top surface can include a ridge portion. The top surface includes a plurality of radiating elements for forming a radiating surface.
摘要翻译：本发明涉及一种如权利要求书所限定的可车载卫星天线，其可在车辆运动时操作。本发明的卫星天线可以安装在车辆顶部（或嵌入）车顶。天线能够提供高增益和窄天线波束，用于瞄准卫星方向并实现与车辆的宽带通信。本发明提供一种具有低轴比，高效率并且具有低的光栅增益的车载卫星天线。本发明的车载卫星天线提供两个同时的偏振状态。在一个实施例中，倒置的L形波导具有从顶表面垂直向下延伸的第一壁。顶表面可以包括脊部。顶表面包括用于形成辐射表面的多个辐射元件。

2. 发明授权

US07391381B2 Vehicle mounted satellite antenna system with in-motion tracking using beam forming 有权
标题翻译：车载卫星天线系统，具有使用波束形成的运动跟踪
公开(公告)号：US07391381B2
公开(公告)日：2008-06-24
申请号：US10752794
申请日：2004-01-07
申请人： James June-Ming Wang , Chau Chin Yang , Franklin Xiaotian Liu , Youren Chen , Wenzhang Wang
发明人： James June-Ming Wang , Chau Chin Yang , Franklin Xiaotian Liu , Youren Chen , Wenzhang Wang
IPC分类号： H01Q1/32 , H01Q13/10
CPC分类号： G01S3/40 , G01S3/14 , G01S3/42 , H01Q1/3275 , H01Q3/04 , H01Q21/005
摘要： The present invention relates to a vehicle mountable satellite antenna as defined in the claims which is operable while the vehicle is in motion. The satellite antenna of the present invention can be installed on top of (or embedded into) the roof of a vehicle. The antenna is capable of providing high gain and a narrow antenna beam for aiming at a satellite direction and enabling broadband communication to vehicle. The present invention provides a vehicle mounted satellite antenna which has low axial ratio, high efficiency and has low grating lobes gain. The vehicle mounted satellite antenna of the present invention provides two simultaneous polarization states. In one embodiment, a hybrid mechanic and electronic steering approach provides a more reasonable cost and performance trade-off. The antenna aiming in the elevation direction is achieved via control of an electronic beamforming network. The antenna is mounted on a rotatable platform under mechanical steering and motion control for aiming the antenna in the azimuth direction. Such approach significantly reduces the complexity and increases the reliability of the mechanical design. The antenna height is compatible to the two-dimensional electronic steering phased-array antenna. Additionally, the number of the electronic processing elements required is considerably reduced from that of the conventional two-dimensional electronic steering phased-array antenna, thereby allowing for low cost and large volume commercial production. The present invention provides electronically generated left, right, up, and down beams for focusing the antenna beam toward the satellite while the vehicle is moving. All of the beams are simultaneously available for use in the motion beam tracking. This provides much faster response and less signal degradation.
摘要翻译：本发明涉及一种如权利要求书所限定的可车载卫星天线，其可在车辆运动时操作。本发明的卫星天线可以安装在车辆顶部（或嵌入）车顶。天线能够提供高增益和窄天线波束，用于瞄准卫星方向并实现与车辆的宽带通信。本发明提供一种具有低轴比，高效率并且具有低的光栅增益的车载卫星天线。本发明的车载卫星天线提供两个同时的偏振状态。在一个实施例中，混合机械和电子转向方法提供了更合理的成本和性能权衡。通过电子波束成形网络的控制来实现朝向高度方向的天线。天线安装在机械转向和运动控制下的可旋转平台上，用于将天线瞄准方位角方向。这种方法显着降低了机械设计的复杂性并增加了其可靠性。天线高度与二维电子转向相控阵天线兼容。此外，所需的电子处理元件的数量比传统的二维电子转向相控阵天线的数量大大减少，从而允许低成本和大量的商业生产。本发明提供电子产生的左，右，上，下光束，用于在车辆移动时将天线光束朝向卫星聚焦。所有光束同时可用于运动光束跟踪。这提供了更快的响应和更少的信号衰减。

3. 发明申请

US20170070893A1 DIRECTION FINDING POSITIONING IN WIRELESS LOCAL AREA NETWORKS 审中-公开
标题翻译：在无线局域网中寻找定位的方向
公开(公告)号：US20170070893A1
公开(公告)日：2017-03-09
申请号：US15121044
申请日：2015-02-24
申请人： James June-Ming Wang , Jianhan Liu , Thomas Edward Pare, JR. , Tianyu Wu , Gabor Bajko , Yung-Ping Hsu , MEDIATEK INC.
发明人： James June-Ming Wang , Jianhan Liu , Thomas Edward Pare Jr. , Tianyu Wu , Gabor Bajko , Yung-Ping Hsu
IPC分类号： H04W16/22 , H04L29/06 , H04B7/06 , H04L5/00
CPC分类号： H04W16/225 , G01S3/14 , G01S3/74 , G01S5/0252 , G01S5/06 , G01S5/12 , G01S13/825 , H04B7/0617 , H04B17/318 , H04L5/0048 , H04L5/005 , H04L69/22 , H04W4/02 , H04W4/023 , H04W4/043 , H04W24/10 , H04W64/00 , H04W84/12
摘要： A method of direction finding (DF) positioning in a wireless location area network (WLAN) is proposed. A multiple antenna IEEE 802.11 transmitting device can transmit signal preamble containing multiple Long Training Field (LTF) symbols in a radio frame from multiple antennas simultaneously, which allows a receiving device to resolve multiple DF sounding signals transmitted from the multiple antennas. As a result, angle of departure (AoD) of the transmitting device can be estimated by using the multiple resolved DF sounding signals from each antenna for DF positioning purpose.
摘要翻译：提出了一种在无线定位区域网络（WLAN）中的方向搜索（DF）定位的方法。多天线IEEE 802.11发射设备可以同时在多个天线的无线帧中发送包含多个长训练场（LTF）符号的信号前导码，这允许接收设备解析从多个天线发送的多个DF探测信号。结果，可以通过使用来自每个天线的多个分辨的DF探测信号来估计发射装置的出发角（AoD），用于DF定位目的。

4. 发明授权

US08902921B2 Methods for inter-user interference indication feedback and usage in MU-MIMO wireless systems 有权
标题翻译： MU-MIMO无线系统中用户间干扰指示反馈和使用的方法
公开(公告)号：US08902921B2
公开(公告)日：2014-12-02
申请号：US13587902
申请日：2012-08-16
申请人： Jianhan Liu , James June-Ming Wang , YungPing Hsu
发明人： Jianhan Liu , James June-Ming Wang , YungPing Hsu
IPC分类号： H04B7/212 , H04B7/04 , H04L25/02
CPC分类号： H04B7/0452 , H04L25/0204 , H04L25/0224
摘要： The present invention proposes methods for facilitating and improving the performance of MU-MIMO transmission in wireless communication systems. Each user within a MU group inserts an inter-user interference indication field in its acknowledgement packet. The inter-user interference indication field includes signal-to-interference-noise-ratio (SINR) and interference source information. The MU-MIMO transmitter extracts inter-user interference indication feedback and improves subsequent MU-MIMO transmission. Feedback of the inter-user interference information such as SINR and interference source allows efficient link adaptation, smarter user selection, channel re-sounding selection, and fine-tuning of precoding matrix.
摘要翻译：本发明提出了促进和改进无线通信系统中MU-MIMO传输性能的方法。 MU组内的每个用户在其确认分组中插入用户间干扰指示字段。用户间干扰指示字段包括信号与干扰噪声比（SINR）和干扰源信息。 MU-MIMO发射机提取用户间干扰指示反馈并改进随后的MU-MIMO传输。诸如SINR和干扰源之类的用户间干扰信息的反馈允许有效的链路自适应，更智能的用户选择，信道重新选择以及预编码矩阵的微调。

5. 发明申请

US20130294491A1 Antenna diversity control for beamforming in an antenna array 有权
标题翻译：天线阵列中波束成形的天线分集控制
公开(公告)号：US20130294491A1
公开(公告)日：2013-11-07
申请号：US13867645
申请日：2013-04-22
申请人： James June-Ming Wang , Menno Marringa
发明人： James June-Ming Wang , Menno Marringa
IPC分类号： H04B7/08
CPC分类号： H04B7/0897 , H04B1/7075 , H04B7/0617 , H04B7/086 , Y02D70/1242 , Y02D70/1262 , Y02D70/40 , Y02D70/444
摘要： Techniques for controlling diversity beamforming antenna array is disclosed. One aspect of the techniques is to utilize low-power and low area circuits to achieve combining gains, mitigate the effects of multipath fading, provide spatial suppression and diversity gains to a single input receiver. The device is radiofrequency transparent yet provides antenna gain by selective three G and four G code acquisition and tracking of a desired downlink channel.
摘要翻译：公开了用于控制分集波束成形天线阵列的技术。该技术的一个方面是利用低功率和低面积电路来实现组合增益，减轻多径衰落的影响，向单个输入接收机提供空间抑制和分集增益。该设备是射频透明的，并通过选择性的三G和四G码获取和跟踪期望的下行链路信道来提供天线增益。

6. 发明申请

US20130010632A1 Simultaneous Feedback Signaling for Dynamic Bandwidth Selection 有权
标题翻译：用于动态带宽选择的同步反馈信号
公开(公告)号：US20130010632A1
公开(公告)日：2013-01-10
申请号：US13635341
申请日：2011-10-20
申请人： James June-Ming Wang , Vishakan Ponnampalam , Jianhan Liu , Chao-Chun Wang , Huanchun Ye
发明人： James June-Ming Wang , Vishakan Ponnampalam , Jianhan Liu , Chao-Chun Wang , Huanchun Ye
IPC分类号： H04W24/10
CPC分类号： H04B17/309 , H04B17/24
摘要： A method of simultaneously providing channel quality feedback information in all valid sub-channels is provided to facilitate and improve the performance of dynamic transmission bandwidth adjustment and fast link adaptation. A receiving device receives a sounding signal over a wide channel in a wireless system. The sounding signal is transmitted from a transmitting device over multiple sub-channels of the wide channel. The receiving device estimates channel quality information based on the sounding signal for each sub-channel. The channel quality information includes estimated average SNR and recommended MCS and other channel quality metrics. The receiving device transmits a feedback message to the transmitting device. The feedback message contains the estimated channel quality information for all valid sub-channels within the transmission bandwidth. The transmitting device performs dynamic transmission bandwidth selection and fast link adaptation based on the channel quality information for all valid sub-channels.
摘要翻译：提供了一种在所有有效子信道中同时提供信道质量反馈信息的方法，以促进和改进动态传输带宽调整和快速链路自适应的性能。接收设备在无线系统中通过宽频道接收探测信号。探测信号通过宽信道的多个子信道从发送设备发送。接收装置基于每个子信道的探测信号来估计信道质量信息。信道质量信息包括估计的平均SNR和推荐的MCS等信道质量度量。接收装置向发送装置发送反馈消息。反馈消息包含传输带宽内所有有效子信道的估计信道质量信息。发送设备根据所有有效子信道的信道质量信息，执行动态传输带宽选择和快速链路自适应。

7. 发明授权

US07123876B2 Easy set-up, vehicle mounted, in-motion tracking, satellite antenna 失效
公开(公告)号：US07123876B2
公开(公告)日：2006-10-17
申请号：US10016233
申请日：2001-11-01
申请人： James June-Ming Wang , ChauChin Yang , Wen Yen Lin
发明人： James June-Ming Wang , ChauChin Yang , Wen Yen Lin
IPC分类号： H04B7/14
CPC分类号： H01Q19/175 , H01Q1/3275 , H01Q3/08 , H01Q13/10
摘要： A low profile, vehicle mounted, in-motion tracking, satellite antenna includes a pair of antenna assemblies mounted in parallel on a rotatable platform. Each antenna assembly includes two subreflectors with a plastic matching element. The outputs of the two antenna assemblies are coupled with a single phase shifter. The combined outputs are retransmitted to a receiver inside the vehicle. The satellite antenna also includes a receiver for receiving channel selection data and/or for providing two-way communication with equipment inside the vehicle. The antennae, transmitter and receiver are self-powered by a storage device which is charged by a wind driven generator. A retractable radome lowers to a lower profile when the antenna is not in use.

8. 发明授权

US10206122B2 Direction finding positioning in wireless local area networks 有权
公开(公告)号：US10206122B2
公开(公告)日：2019-02-12
申请号：US15121044
申请日：2015-02-24
申请人： MEDIATEK INC. , James June-Ming Wang , Jianhan Liu , Thomas Edward Pare, Jr. , Tianyu Wu , Gabor Bajko , Yung-Ping Hsu
发明人： James June-Ming Wang , Jianhan Liu , Thomas Edward Pare, Jr. , Tianyu Wu , Gabor Bajko , Yung-Ping Hsu
IPC分类号： H04W16/22 , G01S3/74 , G01S3/14 , G01S5/12 , G01S1/08 , H04L5/00 , H04L29/06 , H04B7/06 , H04B17/318 , G01S5/06 , H04W4/02 , G01S5/02 , H04W24/10 , H04W64/00 , H04W4/04 , H04W84/12
摘要： A method of direction finding (DF) positioning in a wireless location area network (WLAN) is proposed. A multiple antenna IEEE 802.11 transmitting device can transmit signal preamble containing multiple Long Training Field (LTF) symbols in a radio frame from multiple antennas simultaneously, which allows a receiving device to resolve multiple DF sounding signals transmitted from the multiple antennas. As a result, angle of departure (AoD) of the transmitting device can be estimated by using the multiple resolved DF sounding signals from each antenna for DF positioning purpose.

9. 发明申请

US20130201861A1 Methods for Determining a Loading of a Wireless Communications System and Communication Apparatuses Utilizing the Same 有权
标题翻译：用于确定无线通信系统的负载的方法和使用该无线通信系统的通信设备
公开(公告)号：US20130201861A1
公开(公告)日：2013-08-08
申请号：US13877970
申请日：2011-12-28
申请人： Chao-Chun Wang , Chih-Shi Yee , James June-Ming Wang
发明人： Chao-Chun Wang , Chih-Shi Yee , James June-Ming Wang
IPC分类号： H04W24/08
CPC分类号： H04W24/08 , H04W28/08 , H04W28/20
摘要： A method for determining a loading of a wideband communications channel in a wireless communications system includes: setting up a loading table for the wideband communications channel comprising a plurality of narrow band communications channels; obtaining channel characteristics of the plurality of narrow band communications channels; deciding on a number of data streams and a practical bandwidth of the wideband communications channel for a data transmission transaction and selecting one or more peer communications devices for receiving the data streams; completing the data transmission transaction with the one or more peer communications devices; updating the loading table with the information about the practical bandwidth of the wideband communications channel, the number of data streams and duration of the data transmission transaction; and computing the loading by using the information in the loading table in accordance with a pre-determined formula.
摘要翻译：一种用于确定无线通信系统中的宽带通信信道的负载的方法包括：为包括多个窄带通信信道的宽带通信信道建立加载表; 获得所述多个窄带通信信道的信道特性; 确定用于数据传输事务的多个数据流和宽带通信信道的实际带宽，并选择用于接收数据流的一个或多个对等通信设备; 完成与一个或多个对等通信设备的数据传输事务; 使用关于宽带通信信道的实际带宽的信息，数据流的数量和数据传输事务的持续时间来更新加载表; 以及根据预定公式通过使用装载表中的信息来计算加载。

10. 发明授权

US07702000B1 Method and system for weight generation in an adaptive array with spread spectrum 有权
标题翻译：具有扩展频谱的自适应阵列中权重产生的方法和系统
公开(公告)号：US07702000B1
公开(公告)日：2010-04-20
申请号：US11352187
申请日：2006-02-10
申请人： James June-Ming Wang , Jack Winters
发明人： James June-Ming Wang , Jack Winters
IPC分类号： H04B1/00
CPC分类号： H04B7/0848 , H04B1/707
摘要： The present invention comprises a method and system for weight generation in an adaptive array with spread spectrum signals. Signals received by each antenna are amplified, weighted and summed. Complex weighting is achieved by splitting the signal into inphase and quadrature components, and adjusting the gain of each of these components before combining these weighted components. The output signal after combining of the weighted signals from each antenna is downconverted to baseband, creating inphase and quadrature baseband components. The baseband components are multiplied by the spread spectrum sequence to despread the output signal and reduce the bandwidth of the desired spread spectrum signal to the original desired signal bandwidth. The signals received by each antenna are also downconverted to baseband inphase and quadrature components. Each of these components is multiplied by the spread spectrum sequence to despread the output signal and reduce the bandwidth of the desired spread spectrum signal to the original desired signal bandwidth. The despread/filtered individual antenna signals are multiplied by the despread/filtered output signal to generate antenna weights.
摘要翻译：本发明包括一种具有扩频信号的自适应阵列中权重产生的方法和系统。由每个天线接收的信号被放大，加权和求和。通过将信号分成同相和正交分量来实现复加权，并且在组合这些加权分量之前调整这些分量中的每一个的增益。将来自每个天线的加权信号组合后的输出信号下变频到基带，产生同相和正交基带分量。将基带分量乘以扩频序列以对输出信号进行解扩，并将期望的扩频信号的带宽减小到原始期望的信号带宽。由每个天线接收的信号也被下变频到基带同相和正交分量。将这些分量中的每一个乘以扩展频谱序列以对输出信号进行解扩，并将期望的扩展频谱信号的带宽减小到原始期望的信号带宽。解扩/滤波的单独天线信号乘以解扩/滤波输出信号以产生天线权重。

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