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1. 发明授权

US4429312A Independent landing monitoring system 失效
标题翻译：独立着陆监控系统
公开(公告)号：US4429312A
公开(公告)日：1984-01-31
申请号：US286312
申请日：1981-07-24
申请人： John P. Chisholm
发明人： John P. Chisholm
IPC分类号： G01S1/12 , G01S13/86 , G01S1/16
CPC分类号： G01S13/86 , G01S1/12
摘要： An independent landing monitoring system (ILM) for guiding airborne vehicles on final approach to a landing using a ground-based beacon which transmits a sequence of pulse signals including an omnidirectional signal coded to identify its location and used for initial approach, followed by time spaced directionally radiated right/left and up/down signals used for precision guidance along the final approach path. The time spacing of the various beacon signals and their order of succession in the sequence identify the signals, and the relative intensities of paired precision guidance signals as received by the aircraft is used to provide precision indications of the location of the aircraft on the path. The beacon can be either triggered by the weather radar in the aircraft which then receives the beacon signals on its beacon mode receiver, and/or it can be triggered randomly by a noise jittered oscillator in the beacon for use by approaching aircraft equipped only with a beacon receiver but no weather radar.
摘要翻译：一个独立的着陆监控系统（ILM），用于引导机载车辆使用基于地面的信标最终接近着陆点，该地面信标传送一系列脉冲信号，包括编码的全向信号，以识别其位置并用于初始逼近，其次是时间间隔定向辐射右/左和上/下信号，用于沿着最终进近路径的精确引导。各种信标信号的时间间隔及其顺序的顺序识别信号，并且使用由飞机接收的成对的精确引导信号的相对强度来提供飞行器在路径上的位置的精确指示。信标可以由飞机中的天气雷达触发，然后在其信标模式接收机上接收信标信号，和/或可以由信标中的噪声抖动振荡器随机触发，以便通过接近仅配备信标接收机，但没有天气雷达。

2. 发明授权

US4510499A TACAN data link system 失效
标题翻译： TACAN数据链接系统
公开(公告)号：US4510499A
公开(公告)日：1985-04-09
申请号：US261619
申请日：1981-05-07
申请人： John P. Chisholm , Donald G. Morgan
发明人： John P. Chisholm , Donald G. Morgan
IPC分类号： G01S1/46 , G01S13/86 , H04B7/00
CPC分类号： G01S13/86 , G01S1/46
摘要： The instant invention permits a communication function to be performed by utilizing the transmitter/receiver portion of existing navigational equipment such as, for example, DME equipment, TACAN/DME equipment, and VOR/DME equipment. Rather than utilizing the same channel as the navigation function, the communication function utilizes another of the equipment's channels specifically assigned for communication purposes. Specifically, when it is desired to communicate with a communication or master station, the airborne or remote navigational equipment is momentarily turned from the navigational frequency channel to the frequency channel specifically assigned for the communication function. While momentarily tuned to the communication channel, it sends data to, and receives data from, the communication station. Having completed the communication process, the airborne or remote unit tunes back to the navigational channel and resumes its navigational function. Tuning from the navigational channel and the time spent on the communication channel is sufficiently short so that the navigational function is not impaired.
摘要翻译：本发明允许通过利用现有导航设备的发射器/接收器部分来执行通信功能，例如DME设备，TACAN / DME设备和VOR / DME设备。通信功能不是利用与导航功能相同的通道，而是利用专门用于通信目的的另一设备通道。具体地说，当希望与通信或主站进行通信时，机载或远程导航设备被暂时从导航频道切换到专用于通信功能的频道。当通信通道瞬时调谐时，它向通信台发送数据并从通信台接收数据。完成通信过程后，机载或遥控单元调回航行通道并恢复其导航功能。从导航频道进行调谐，在通信频道上花费的时间足够短，导航功能不受损害。

3. 发明授权

US4680587A Instrument landing system 失效
标题翻译：仪器着陆系统
公开(公告)号：US4680587A
公开(公告)日：1987-07-14
申请号：US765490
申请日：1985-08-14
申请人： John P. Chisholm
发明人： John P. Chisholm
IPC分类号： G01S1/14 , G01S13/76 , G01S13/78 , G01S13/86
CPC分类号： G01S13/787
摘要： In a single-frequency precision guidance landing system, the use of a DME interrogator in the aircraft and a DME receiver at the ground installation, each tuned to the same DME channel frequency, to uniquely interrogate a selected ground station and hence identify it by virtue of its replies being synchronous in the aircraft with the interrogations, the interrogations and the replies also being used to obtain range to the ground installation. This technique uses airborne already-installed DME interrogators for selective interrogation of a desired landing installation, thereby to eliminate any need to add additional special purpose equipment to the aircraft to accomplish the desired uniqueness of interrogation and ground installation identification achieved by this invention.
摘要翻译：在单频精确引导着陆系统中，在飞机上使用DME询问器和在地面安装处使用DME接收器，每个DME接收器调谐到相同的DME通道频率，以独特地询问选定的地面站，并因此凭借其识别其答复在询问中在飞机中是同步的，询问和答复也用于获得到地面安装的范围。该技术使用机载已经安装的DME询问器来选择性地询问期望的着陆装置，从而消除任何需要向飞行器添加额外的专用设备以实现本发明实现的询问和地面安装识别所需的唯一性。

4. 发明授权

US5014067A Integrated landing system 失效
标题翻译：综合着陆系统
公开(公告)号：US5014067A
公开(公告)日：1991-05-07
申请号：US493044
申请日：1990-03-12
申请人： John P. Chisholm
发明人： John P. Chisholm
IPC分类号： G01S1/06 , G01S1/56
CPC分类号： G01S1/06 , G01S1/56
摘要： An integrated landing system interleaves signals encoded in a first format such as the microwave landing system that (MLS) format with signals encoded in a second format such as the precision tactical approach guidance (PTAG) format to permit approach guidance information to be transmitted to aircraft having either MLS receivers or PTAG receivers.
摘要翻译：集成的着陆系统以诸如精确战术方法指导（PTAG）格式的第二格式编码的信号以诸如微波着陆系统（MLS）格式的第一格式编码的信号交错，以允许将方向指导信息传送到飞机具有MLS接收器或PTAG接收器。

5. 发明授权

US4723126A Microwave landing system for use on a back course approach 失效
标题翻译：微波着陆系统，用于后方课程
公开(公告)号：US4723126A
公开(公告)日：1988-02-02
申请号：US916578
申请日：1986-10-08
申请人： John P. Chisholm
发明人： John P. Chisholm
IPC分类号： G01S1/16 , G01S1/10 , G01S1/56
CPC分类号： G01S1/56 , G01S1/10
摘要： The invention provides independent guidance and monitoring integrated into an MLS landing system and a scaled-down MLS take-off or missed approach guidance system useable at small airports. An added fixed beam precision guidance system is integrated into the MLS time sequence format. The fixed beam guidance system is based upon the concept of using paired fixed overlapping beams, sequentially radiated by different fixed antennas (80 and 81), oriented to left and right of a prescribed guidance path. The paired beams overlap at the prescribed guidance path in such a manner that an aircraft departing or making a missed approach on such path will intercept equal signal intensities to indicate an on-course condition. Conversely, when the aircraft is off-course to one side of the prescribed path, it will intercept a stronger signal intensity for the fixed guidance beam which is directed to that side of the prescribed path and a weaker signal intensity for the fixed beam which is directed to the other side of the prescribed path.
摘要翻译：本发明提供了独立的指导和监测，集成到MLS着陆系统中，以及在小型机场可用的缩小的MLS起飞或错过的导航系统指导系统。增加的固定光束精度指导系统被集成到MLS时序格式中。固定光束引导系统基于使用成对固定重叠光束的概念，该成对固定重叠光束被定向在规定引导路径的左侧和右侧的不同固定天线（80和81）顺序辐射。成对的光束在规定的引导路径处重叠，使得在这种路径上离开或进行错过的飞行器将拦截相等的信号强度以指示在线状态。相反，当飞机离规定路径的一侧偏离时，它将拦截针对指定路径那侧的固定引导梁的较强的信号强度，对于固定梁的信号强度较弱，指向规定路径的另一边。

6. 发明授权

US3950753A Stepped cardioid bearing system 失效
标题翻译：步进式轴承系统
公开(公告)号：US3950753A
公开(公告)日：1976-04-13
申请号：US424458
申请日：1973-12-13
申请人： John P. Chisholm
发明人： John P. Chisholm
IPC分类号： G01S1/48 , H01Q3/44 , G01S1/56
CPC分类号： H01Q3/446 , G01S1/48
摘要： An antenna system having a central radiator element and one or more surrounding rings of parasitic elements which can be tuned or actuated separately in each ring by electrical commutation to provide a stepped cardioid radiation or receiving pattern. When the radiator element and a ring of parasitics are used to transmit a cardioid, its stepped pattern contains a fundamental sinusoidal component which can be extracted by a filter at a receiver and used to provide a TACAN/VORTAC bearing determination by comparing its phase with a reference signal transmitted once per revolution of the pattern to mark a predetermined position in its rotation, as is common in TACAN systems. When the cardioid pattern comprises transmitted squitter pulses, care is taken to ensure actual transmissions marking each stepping of the antenna pattern in order to provide optimum bearing information.

7. 发明授权

US4990921A Multi-mode microwave landing system 失效
标题翻译：多模微波着陆系统
公开(公告)号：US4990921A
公开(公告)日：1991-02-05
申请号：US45911
申请日：1987-05-01
申请人： John P. Chisholm
发明人： John P. Chisholm
IPC分类号： G01S1/14 , G01S3/30 , G01S13/42 , G01S13/48 , G01S13/76 , G01S13/91
CPC分类号： G01S3/30 , G01S13/42 , G01S13/913
摘要： A guidance system for landing an aircraft is described which uses a source of signals identifiable with the aircraft and a ground station which is linked to the aircraft. Specifically, the ground station includes a receiver which is connected to one or more pairs of antennas having a fixed, overlapping, directional sensitive pattern symmetically located relative to the center of the landing path, a receiver and a processor for measuring the relative sensitivity of the signals received at the antennas and for using the relative signal intensity to determine the location of the aircraft relative to the center of the landing path.
摘要翻译：描述了用于着陆飞机的引导系统，其使用与飞行器可识别的信号源和与飞机相连的地面站。具体地说，地面站包括连接到一对或多对天线的接收机，该对天线具有相对于着陆路径的中心对称定位的固定的，重叠的，方向敏感的模式，接收机和处理器，用于测量在天线处接收的信号并且使用相对信号强度来确定飞行器相对于着陆路径中心的位置。

8. 再颁专利

USRE33401E Microwave landing system 失效
标题翻译：微波着陆系统
公开(公告)号：USRE33401E
公开(公告)日：1990-10-23
申请号：US286721
申请日：1988-12-19
申请人： John P. Chisholm
发明人： John P. Chisholm
IPC分类号： G01S1/10 , G01S1/56
CPC分类号： G01S1/56 , G01S1/10
摘要： The invention provides independent guidance and monitoring to be integrated into an MLS landing system and also provides a scaled-down MLS landing guidance system useable at small airports. In both cases an added fixed beam precision guidance system is integrated into the MLS time sequence format. The fixed beam guidance system is based upon the concept of using paired fixed overlapping beams, sequentially radiated by different fixed antennas. One pair is oriented to left and right of the centerline of the runway, and the other pair is oriented above and below the desired glideslope. The first set of paired beams overlap at the centerline of the runway in such a manner that an aircraft approaching exactly on centerline will intercept equal signal intensities to indicate an on-course approach. Conversely when the aircraft is off-course to one side of the centerline, it will intercept a stronger signal intensity for the fixed guidance beam which is directed to that side of the centerline and a weaker signal intensity for the fixed beam which is directed to the other side of the centerline. Similar operation is provided by the overlapped guidance beams operating in the elevation mode.

9. 发明授权

US4866450A Advanced instrument landing system 失效
标题翻译：高级仪器着陆系统
公开(公告)号：US4866450A
公开(公告)日：1989-09-12
申请号：US258060
申请日：1988-10-14
申请人： John P. Chisholm
发明人： John P. Chisholm
IPC分类号： G01S5/14 , G01S11/08 , G01S19/11
CPC分类号： G01S19/15 , G01S1/10 , G01S11/08
摘要： A system for landing an aircraft is described, using a ground installation and an airborne installation which are synchronized together using GPS system time. Specifically, the ground installation includes a ground transmitter which radiates the sequence of signals which provide precision guidance information to the aircraft, an aircraft installation which includes a radio receiver and a processor to receive and process the transmitted guidance signals and to provide indications to aid the pilot in landing the aircraft, a GPS receiver in the air and on the ground for producing signals representative of GPS system time, and a channel selector in the aircraft for actuating the processor to synchronize its operation with the ground installation transmitter. Range information is provided by measuring the time interval between the transmission of a reference at the ground and its receipt in the air.
摘要翻译：使用GPS系统时间同步在一起的地面安装和机载安装来描述用于着陆飞机的系统。具体地讲，地面设备包括一个地面发射机，它将向航空器提供精确指导信息的信号序列发射，包括一个无线电接收机和一个处理器的飞行器设备，用于接收和处理发射的引导信号并提供指示来帮助飞行员着陆飞机，在空中和地面上的GPS接收器用于产生代表GPS系统时间的信号，以及飞行器中的通道选择器，用于致动处理器以使其操作与地面安装发射器同步。范围信息是通过测量地面上的参考传输与其在空中的接收之间的时间间隔来提供的。

10. 发明授权

US4635064A Microwave landing system 失效
标题翻译：微波着陆系统
公开(公告)号：US4635064A
公开(公告)日：1987-01-06
申请号：US719849
申请日：1985-04-04
申请人： John P. Chisholm
发明人： John P. Chisholm
IPC分类号： G01S1/14 , G01S1/10 , G01S1/56 , G01S1/16
CPC分类号： G01S1/10 , G01S1/56
摘要： The invention provides independent guidance and monitoring to be integrated into an MLS landing system and also provides a scaled-down MLS landing guidance system useable at small airports. In both cases an added fixed beam precision guidance system is integrated into the MLS time sequence format. The fixed beam guidance system is based upon the concept of using paired fixed overlapping beams, sequentially radiated by different fixed antennas. One pair is oriented to left and right of the centerline of the runway, and the other pair is oriented above and below the desired glideslope. The first set of paired beams overlap at the centerline of the runway in such a manner that an aircraft approaching exactly on centerline will intercept equal signal intensities to indicate an on-course approach. Conversely when the aircraft is off-course to one side of the centerline, it will intercept a stronger signal intensity for the fixed guidance beam which is directed to that side of the centerline and a weaker signal intensity for the fixed beam which is directed to the other side of the centerline. Similar operation is provided by the overlapped guidance beams operating in the elevation mode.
摘要翻译：本发明提供独立的指导和监测，以集成到MLS着陆系统中，并提供可在小型机场使用的按比例缩小的MLS着陆引导系统。在这两种情况下，添加的固定光束精度指导系统集成到MLS时序格式中。固定光束引导系统基于使用由不同固定天线顺序辐射的成对固定重叠光束的概念。一对定位于跑道中心线的左侧和右侧，另一对位于所需滑翔伞的上方和下方。第一组配对梁在跑道的中心线处重叠，使得正好靠近中心线的飞行器将拦截相等的信号强度以指示在路线上的方法。相反，当飞机偏离中心线的一侧时，它将拦截针对中心线的那一侧的固定引导梁的更强的信号强度，并且针对固定梁的较弱的信号强度被引导到中心线的另一边。通过在仰角模式下操作的重叠引导梁提供类似的操作。

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