公开(公告)号：US06658045B1

公开(公告)日：2003-12-02

申请号：US09253094

申请日：1999-02-22

Applicant: Xin Jin

Inventor： Xin Jin

IPC: H04B169

CPC classification number: H04B7/01 ,  H04B1/7115 ,  H04B1/7117 ,  H04B1/712 ,  H04B2201/70707 ,  H04B2201/7071

Abstract: The invention is a CDMA system which achieves improved performance by virtue of being adaptive to the speed of each mobile unit in the system. A speed estimator for each mobile unit can be located in the mobile unit itself and/or in the base station. The speed estimate is used to modify a variety of parameters within processing fingers in the mobile unit and in the base station, including the accumulation period of certain accumulators and the time constant for loop filters. The speed estimate also influences assignment, by a control unit, of path delays to respective processing fingers for despreading. Furthermore, the speed estimate is used by the control unit to decide whether or not finger outputs are to be combined by a diversity combiner in the receiver. In addition, the speed estimate is used to optimize the closed-loop power control target and the energy of a transmitted pilot. The speed estimate is also used for allocation of pooled finger and searcher resources, as well as data transmission rate negotiation and interleaver/deinterleaver length configuration.

Abstract translation: 本发明是通过适应于系统中的每个移动单元的速度来实现改进的性能的CDMA系统。 每个移动单元的速度估计器可以位于移动单元本身和/或基站中。 速度估计用于修改移动单元和基站中的处理指状物内的各种参数，包括某些累加器的累积周期和环路滤波器的时间常数。 速度估计也影响由控制单元对各个处理手指进行解扩的路径延迟的分配。 此外，控制单元使用速度估计来确定手指输出是否由接收机中的分集组合器组合。 此外，速度估计用于优化闭环功率控制目标和发射导频的能量。 速度估计也用于合并手指和搜索资源的分配，以及数据传输速率协商和交织器/解交织器长度配置。

公开(公告)号：US06598189B1

公开(公告)日：2003-07-22

申请号：US09560648

申请日：2000-04-28

Applicant: Wen Zhao ,  Robert Charles Elliott ,  Xin Jin

Inventor： Wen Zhao ,  Robert Charles Elliott ,  Xin Jin

IPC: G06F1100

CPC classification number: H04L1/0061 ,  H04L25/0262

Abstract: A method of determining the actual transmission rate in a variable transmission rate communication system is provided, using error detection metrics. The received symbols are decoded assuming each possible rate, and then re-encoded to determine a symbol error rate for each possible rate. The possible transmission rates are then narrowed down using a simple measure of the likelihood of error, such as the CRC status determined for each rate. The symbol error rates are compared to either make a confident decision as to the actual transmission rate or to erase the frame. Rather than compare the values of the symbol error rates with predetermined thresholds, the method compares the differences between the symbol error rates for each possible rate with predetermined thresholds. This results in fewer erasures, even if the symbol error rates are low due to high signal to noise ratios.

Abstract translation: 提供了使用错误检测度量来确定可变传输速率通信系统中的实际传输速率的方法。 假设每个可能的速率对接收到的符号进行解码，然后重新编码以确定每个可能速率的符号错误率。 然后可能的传输速率通过使用错误可能性的简单测量来缩小，例如为每个速率确定的CRC状态。 将符号错误率进行比较，以确定实际传输速率或擦除帧。 不是将符号错误率的值与预定阈值进行比较，而是将每个可能速率的符号错误率与预定阈值之间的差异进行比较。 这导致更少的擦除，即使符号错误率由于高的信噪比而较低。

公开(公告)号：US06236864B1

公开(公告)日：2001-05-22

申请号：US09200759

申请日：1998-11-27

Applicant: Neil McGowan ,  Xin Jin

Inventor： Neil McGowan ,  Xin Jin

IPC: H04B102

CPC classification number: H04B1/707 ,  H04B2201/70706

Abstract: A peak power regulator is disclosed that functions within a Code Division Multiple Access (CDMA) transmitter to reduce peak power spikes within baseband signals while maintaining the average output power consistent with the average input power, controlling the out-of-band emissions, and maintaining the in-band signal quality within an acceptable degradation. In-phase and quadrature baseband signals are input to a delay block and an envelope magnitude predictor within the peak power regulator. The envelope magnitude predictor outputs an estimate for the magnitude of the envelope that will be generated when the inputted baseband signals are modulated. This estimate is input to a multiplier that generates a ratio by dividing the estimate by a maximum acceptable envelope magnitude. The ratio is subsequently input to a mapping table that outputs a scaling factor sufficient for reducing peak power spikes. The scaling factor is subsequently input to an optional mean power regulator that generates an instantaneous gain value sufficient to maintain the average output power level at the average input power level. This gain value is applied to two multipliers that are also input with delayed versions of the in-phase and quadrature baseband input signals. The outputs from these two multipliers, after being filtered within lowpass filters to remove out-of-band emissions caused by the scaling, are output from the peak power regulator. These peak power reduced outputs have any peak power spikes scale reduced while maintaining the average power constant.

Abstract translation: 公开了一种峰值功率调节器，其功能在码分多址（CDMA）发射机内，以降低基带信号内的峰值功率尖峰，同时保持与平均输入功率一致的平均输出功率，控制带外发射，并维持 带内信号质量可以降低。 同相和正交基带信号被输入到峰值功率调节器内的延迟块和包络幅度预测器。 包络幅度预测器输出当输入的基带信号被调制时将产生的包络幅度的估计。 该估计被输入到通过将估计除以最大可接受的包络幅度而产生比率的乘法器。 该比率随后被输入到映射表，其输出足以减少峰值功率尖峰的比例因子。 缩放因子随后被输入到可选的平均功率调节器，其产生足以将平均输出功率电平维持在平均输入功率电平的瞬时增益值。 该增益值被应用于同时和正交基带输入信号的延迟版本的两个乘法器。 从峰值功率调节器输出来自这两个乘法器的输出，在经过低通滤波器滤波以消除由缩放引起的带外发射之后。 这些峰值功率降低的输出在保持平均功率恒定的情况下具有任何峰值功率尖峰尺度减小。

公开(公告)号：US20220107404A1

公开(公告)日：2022-04-07

申请号：US17554060

申请日：2021-12-17

Applicant: Xin Jin

Inventor： Xin Jin

IPC: G01S13/82 ,  G01S13/931 ,  G01S17/931 ,  G01S13/86

Abstract: Radar and LiDAR sensors play important roles in autonomous vehicles and ADAS (advanced driving assistance systems) in automobiles, however, they can only detect objects in view (line-of-sight). For example, when three vehicles are driving on road in a same lane, and if the first vehicle suddenly brakes, the third vehicle cannot detect it by regular radar and/or LiDAR because the second vehicle in front blocks the view. This invention discloses system and method to enable radar and/or LiDAR to detect vehicles on road that are blocked in view by another vehicle by specially configured active beacon transmitters, and reduce risks of rear-end collisions.

公开(公告)号：US20220011431A1

公开(公告)日：2022-01-13

申请号：US16926400

申请日：2020-07-10

Applicant: Xin Jin

Inventor： Xin Jin

IPC: G01S17/89 ,  G01S7/4912

Abstract: Doppler LIDARs, such as those used in ADAS (advanced driver assistance system) and autonomous vehicles, may need to sense objects at many directions. Some of the Doppler LIDAR devices use mechanically moving parts to scan over a range of directions and the various directions are not sensed simultaneously but sensed in turns over time. Mechanically moving parts generally have higher costs, less reliability and shorter Mean Time To Failure (MTTF). The camera sensor for LIDAR with Doppler-sensing pixels disclosed herein uses a Doppler sensing-chip that enables Doppler LIDAR devices to sense many directions simultaneously without having to use mechanical scan and mechanically moving parts, at least reduce the use thereof. Lower costs and higher reliability as well as higher direction sensing accuracy are objectives of this invention.

公开(公告)号：US11000078B2

公开(公告)日：2021-05-11

申请号：US16184070

申请日：2018-11-08

Applicant: Xin Jin

Inventor： Xin Jin

IPC: A41D13/018 ,  A61B5/11 ,  A41D13/015 ,  G01P13/00 ,  A41D1/00 ,  G01P15/08

Abstract: For people with reduced physical ability such as elderly people, risks of bodily injuries are high. Once an injury occurs, a victim suffers, sometimes a victim even may not survive. To help such people, a device without adding much inconvenience in normal life is disclosed. The device is able to detect dangerous conditions and automatically deploy airbags when needed to prevent or mitigate potential bodily injuries.

公开(公告)号：US20170103659A1

公开(公告)日：2017-04-13

申请号：US14880221

申请日：2015-10-10

Applicant: Xin Jin

Inventor： Xin Jin

IPC: G08G5/00 ,  G05D1/00 ,  G05D1/10 ,  B64C39/02

CPC classification number: G08G5/006 ,  B64C39/024 ,  B64C2201/14 ,  G01S1/68 ,  G05D1/101 ,  G05D1/106 ,  G08G5/0026 ,  G08G5/0052 ,  G08G5/0069

Abstract: In certain areas, if a drone flies into them, may cause danger to people or facilities within the area. In such areas no-fly zones need to be implemented and enforced. A no-fly zone can be indicated or identified by specially transmitted radio signals in or around the no-fly zone. No-fly zones can also be defined using geo-fence data that is provided to a drone. Once a drone detects itself within a no-fly zone, will disable the control from its original operator or from its pre-programmed flying plan at least in part, and be made harmless.

公开(公告)号：US09335428B2

公开(公告)日：2016-05-10

申请号：US12138388

申请日：2008-06-12

Applicant: Xin Jin

Inventor： Xin Jin

IPC: G01V1/28 ,  G01V1/00 ,  G01V1/06 ,  G21J3/00

CPC classification number: G01V1/008 ,  G01V1/06 ,  G21J3/00

Abstract: Catastrophic earthquakes cause tremendous loss to people, especially when they occur unprepared. Imminent prediction of the earthquake with occurrence time, location and magnitude may give people time to prepare for it and minimize the loss. Unfortunately, imminent prediction of the earthquakes, especially those without foreshocks, is very difficult if not impossible. This invention discloses a method and system that work around the difficulty of the imminent prediction of the earthquake. Instead of trying to predict the occurrence, it triggers the earthquake artificially at a known time so that evacuation and other preparations can be accomplished prior to the triggering time of the earthquake to reduce the loss caused by the earthquake. The artificial triggering of the earthquakes may be implemented by at least one underground nuclear explosion.

Abstract translation: 灾难性地震造成人员巨大损失，特别是在没有准备的情况下。 发生时间，地点和幅度的地震预报可能给人们准备时间，并尽量减少损失。 不幸的是，即使不是不可能，对地震的预测，特别是没有前景的地震也是非常困难的。 本发明公开了一种解决地震即将到来的困难的方法和系统。 而不是试图预测发生的情况，它会在已知的时间人为地触发地震，以便在地震的触发时间之前完成撤离等准备工作，以减少地震造成的损失。 地震的人为触发可以通过至少一次地下核爆炸来实施。

公开(公告)号：US08806340B2

公开(公告)日：2014-08-12

申请号：US12874081

申请日：2010-09-01

Applicant: Andrew Cheng-min Lin ,  Eric Buehl ,  Tienan Ren ,  Xin Jin ,  Eric I. Feng

Inventor： Andrew Cheng-min Lin ,  Eric Buehl ,  Tienan Ren ,  Xin Jin ,  Eric I. Feng

IPC: G06F3/00 ,  G11B27/34 ,  H04N5/445

CPC classification number: G11B27/34 ,  G06F17/30849 ,  H04N5/44543 ,  H04N21/234363 ,  H04N21/234381 ,  H04N21/472 ,  H04N21/47217 ,  H04N21/812 ,  H04N21/8455 ,  H04N21/8549

Abstract: A method and apparatus for embedding a media program with a randomly user selected thumbnail is disclosed. The user can scan a media program to identify one of a plurality of media program frames, select the frame of interest, then designate it as the thumbnail to use in connection with the embedded media program.

Abstract translation: 公开了一种用于嵌入具有随机用户选择的缩略图的媒体节目的方法和装置。 用户可以扫描媒体节目以识别多个媒体节目帧中的一个，选择感兴趣的帧，然后将其指定为与嵌入式媒体节目结合使用的缩略图。

公开(公告)号：US08749437B2

公开(公告)日：2014-06-10

申请号：US13203881

申请日：2010-04-22

Applicant: Jian Bai ,  Yufei Tang ,  Xin Jin

Inventor： Jian Bai ,  Yufei Tang ,  Xin Jin

IPC: H01Q1/24

CPC classification number: H01Q1/48 ,  H01Q5/30

Abstract: A mobile communication terminal comprises a motherboard and an internal antenna that is arranged at one end of the motherboard, and an isolation structure similar a hairline crack is formed at the other end of the motherboard far from the internal antenna. The mobile communication terminal provided by the present invention extends the main ground length of an antenna by means of an isolation structure on a motherboard, thereby increasing the antenna bandwidth so as to meet radio-frequency performance requirements.

Abstract translation: 移动通信终端包括主板和布置在母板的一端的内部天线，并且远离内部天线的母板的另一端形成类似于发际裂纹的隔离结构。 本发明提供的移动通信终端通过主板上的隔离结构来延长天线的主地面长度，从而增加天线带宽以满足射频性能要求。