公开(公告)号：US5627546A

公开(公告)日：1997-05-06

申请号：US523348

申请日：1995-09-05

Applicant: Robert P. Crow

Inventor： Robert P. Crow

IPC: G01S13/76 ,  G01S13/86 ,  G01S13/91 ,  G01S13/93 ,  G01S13/94 ,  G08G5/00 ,  H04B7/185

CPC classification number: G08G5/0013 ,  G01S13/765 ,  G08G5/0043 ,  G08G5/0082 ,  H04B7/18508 ,  H04B7/1851 ,  H04K3/255 ,  H04K3/90 ,  G01S13/86 ,  G01S13/91 ,  G01S13/9303 ,  G01S13/94

Abstract: The present invention provides a combined ground and satellite system for global aircraft surveillance, navigation, landing guidance and collision avoidance which comprises a satellite subsystem consisting of both a satellite constellation and associated ground stations, and a ground subsystem consisting of a network of ground stations, together with an airborne subsystem comprised of a transponder unit located in each of the aircraft using the system. A high speed two-way data link is provided between each of the subsystems using spread spectrum technology to permit overlaying and operation of the system in an existing band of narrow channels with minimum mutual interference. The system of the invention is reliable because of the redundant subsystems, and is not subject to failure. Also, the system provides for computations to be made on the ground, rather than in the aircraft, thereby reducing the size and complexity of the airborne equipment. The system also achieves a high degree of precision, as compared with the prior art systems. The system also provides air/ground data communication.

Abstract translation: 本发明提供了一种用于全球飞机监视，导航，着陆引导和避碰的组合地面和卫星系统，其包括由卫星星座和相关地面站组成的卫星子系统，以及由地面站网络组成的地面子系统， 以及由位于使用该系统的每个飞机中的应答器单元组成的机载子系统。 使用扩频技术在每个子系统之间提供高速双向数据链路，以允许以最小的相互干扰在现有的窄信道带中重叠和操作系统。 由于冗余子系统，本发明的系统是可靠的，不会发生故障。 此外，该系统提供了在地面而不是飞机上进行的计算，从而减小了机载设备的尺寸和复杂性。 与现有技术的系统相比，该系统还具有高精度。 该系统还提供空中/地面数据通信。

公开(公告)号：US4454510A

公开(公告)日：1984-06-12

申请号：US246174

申请日：1981-03-23

Applicant: Robert P. Crow

Inventor： Robert P. Crow

IPC: G01S13/79 ,  G09B9/00 ,  G01S13/00

CPC classification number: G01S13/79 ,  G09B9/006

Abstract: An aircraft surveillance, navigation, landing, guidance and collision avoidance system is provided which takes the form of a two-way data communication link between each of a plurality of controlled aircraft and a ground station, and appropriate measuring equipment at the ground station which provides three-dimensional position data on the ground for air traffic control purposes; and which also provides three-dimensional position data in the aircraft for navigation, landing guidance and collision avoidance purposes, as well as a two-way air/ground data link for miscellaneous data and control purposes. The system of the invention comprises the combination of a ground transmitter/receiver station and airborne transponders mounted in the aircraft. The ground transmitter broadcasts discrete aircraft addressed interrogation pulses which are coded to contain position and/or other data. The transponders in all aircraft receive and decode the interrogation pulses, and the discretely addressed aircraft transmits appropriately timed reply pulses to the ground receiver which contain altitude and other data. Other aircraft utilize the received position information for collision avoidance purposes. The ground receiver measures the incident angles of the reply signal pulses and their precise time delays with respect to the interrogation pulses, so as to provide aircraft position and other data to the ground station, and to provide additional data for transmission to the aircraft on the following interrogation pulses.

Abstract translation: 提供了一种飞行器监视，导航，着陆，引导和碰撞避免系统，其采用多个受控飞行器和地面站中的每一个之间的双向数据通信链路的形式，以及在地面站处提供适当的测量设备， 用于空中交通管制目的的地面立体位置数据; 并且还在飞行器中提供用于导航，着陆引导和避碰目的的三维位置数据，以及用于杂项数据和控制目的的双向空/地数据链路。 本发明的系统包括地面发射机/接收机站和安装在飞行器中的机载应答器的组合。 地面发射机广播被编码为包含位置和/或其他数据的离散飞机寻址的询问脉冲。 所有飞机中的应答器接收和解码询问脉冲，并且离散寻址的飞机将适当的定时应答脉冲发送到包含高度和其他数据的地面接收机。 其他飞机利用接收到的位置信息进行避碰目的。 接地接收机测量应答信号脉冲的入射角度及其相对于询问脉冲的精确时间延迟，以便向地面站提供飞机位置和其他数据，并提供附加数据以便在飞机上传输 跟随询问脉冲。

公开(公告)号：US5657393A

公开(公告)日：1997-08-12

申请号：US99437

申请日：1993-07-30

Applicant: Robert P. Crow

Inventor： Robert P. Crow

IPC: H04R3/00

CPC classification number: H04R3/005 ,  H04R1/406 ,  H04R2201/403 ,  H04R2201/405

Abstract: A sound enhancement system including a beamed linear array microphone system for the acoustic pickup of voice and music from substantial distances with a relatively narrow sound pickup beam and with the avoidance of acoustic feedback. The acceptance beam angle is relatively constant over the desired sound octaves. Response outside of the acceptance beam is relatively low. The system includes a microprocessor-controlled circuit for processing the signals from a multiplicity of microphone elements in the linear array for application to a loudspeaker.

Abstract translation: 一种声音增强系统，包括用于用相对较窄的声音拾取光束从相当远的距离的声学拾音器和用于避免声反馈的声束拾取的束状线性阵列麦克风系统。 接收光束角在所需的声音八度音程上相对恒定。 响应外的接收光束相对较低。 该系统包括微处理器控制的电路，用于处理来自线性阵列中的多个麦克风元件的信号以用于扬声器。

公开(公告)号：US4603973A

公开(公告)日：1986-08-05

申请号：US574063

申请日：1984-01-26

Applicant: Robert P. Crow

Inventor： Robert P. Crow

IPC: G01S17/10 ,  G02F1/13 ,  G01C3/08 ,  H04N7/00

CPC classification number: G01S17/107 ,  G02F1/1313

Abstract: A system for viewing a lighted scene through a diffusive medium, such as rain, fog, snow, blowing dust, or sand, by overcoming the effects of light backscatter. The system uses a flash lamp which operates in response to short electric pulses at a high repetition rate to give the appearance of continuous illumination. The scene is viewed through a panel which operates as a high-speed optical shutter. The panel serves to block the reflected light (backscatter) from the nearby particles of the diffusive medium and passes the reflected light from the distant objects which make up the scene.

Abstract translation: 通过克服光反向散射的影响，通过漫射介质（如雨，雾，雪，吹灰尘或沙子）观察点燃场景的系统。 该系统使用闪光灯，其以高重复率响应于短电脉冲而工作，以产生连续照明的外观。 通过作为高速光学快门操作的面板来观看场景。 该面板用于阻挡来自漫射介质的附近颗粒的反射光（反向散射），并将构成场景的远处物体的反射光通过。