公开(公告)号：US3899661A

公开(公告)日：1975-08-12

申请号：US39185473

申请日：1973-08-27

Applicant: KING RADIO CORP

Inventor： LEHFELDT JAMES J

IPC: G01C9/00 ,  G05D1/06 ,  G01C21/00 ,  B64C13/18

CPC classification number: G01C9/005 ,  G05D1/0607

Abstract: A method and apparatus for controlling aircraft maneuvers enabling an aircraft to automatically achieve a preselected altitude from one previously selected. The system includes suitable circuitry and method steps for determining the rate of altitude change and summing means for comparing the rate of change with the difference between the known altitude and the preselected altitude. Detector means are provided to detect zero crossings from the output of the summing means. When zero crossings are detected, a logic signal is developed which is utilized to initiate an altitude capture signal to an associated autopilot or flight director. The altitude capture signal includes a fly through bias command to ensure that the flight director or autopilot maneuvers the aircraft through the preselected altitude. This signal is an input to a low pass filter which smoothes the capture signal and reduces the effect of premature or later capture maneuver initiations.

Abstract translation: 一种用于控制飞行器机动的方法和装置，其使飞机能够自动地从先前选择的一个高度获得预选高度。 该系统包括用于确定高度变化率的适当电路和方法步骤以及用于将变化率与已知高度与预选高度之间的差进行比较的求和装置。 提供检测器装置以检测来自求和装置的输出的过零点。 当检测到过零点时，开发出一种逻辑信号，用于向相关的自动驾驶仪或飞行导向器发起高度捕获信号。 高度捕获信号包括飞越偏倚命令，以确保飞行总监或自动驾驶员通过预选高度来操纵飞行器。 该信号是对低通滤波器的输入，其平滑捕获信号并减少过早或稍后的捕获机动启动的影响。

公开(公告)号：US3891832A

公开(公告)日：1975-06-24

申请号：US34423473

申请日：1973-03-23

Applicant: KING RADIO CORP

Inventor： RODGERS DANIEL L ,  CATER THOMAS F

IPC: G01C23/00 ,  G01S1/02 ,  G01S19/15 ,  G06G7/78 ,  G06G7/70

CPC classification number: G06G7/78 ,  G01C23/005 ,  G01S1/02

Abstract: The improvement includes a unique indicator and associated circuitry for glide slope and localizer data. The device has a closed loop circuit with an optical position transducer therein. The circuit loop operates in conjunction with the received raw data from the glide slope and localizer transmitters to accurately locate a pointer (or indicator) controlled by a unique rotary solenoid actuator.

Abstract translation: 改进包括用于滑坡和定位器数据的独特指示器和相关电路。 该装置具有其中具有光学位置传感器的闭环电路。 电路回路与接收到的来自滑坡和定位器发射器的原始数据一起运行，以精确定位由独特旋转螺线管执行器控制的指针（或指示器）。

公开(公告)号：US3814911A

公开(公告)日：1974-06-04

申请号：US31810572

申请日：1972-12-26

Applicant: KING RADIO CORP

Inventor： LEHFELDT J

IPC: G05D1/04 ,  G06G7/70 ,  G06G7/78

CPC classification number: G05D1/044 ,  G06G7/70

Abstract: A method and apparatus for computing a maneuver initiating logic signal including suitable circuitry and steps to produce a crosstrack rate signal is modified by a course datum variable and a conversion factor which will include a constant maximum bank angle. Further, this electrical signal is modified by the actual variable velocity of the aircraft and a comparing means is provided to compare a final velocity modified signal with a signal corresponding to crosstrack distance. When zero crossings are detected, the resultant logic signal indicates that the maneuver bank turn should be initiated for proper intercept and a capture of a radio course.

Abstract translation: 用于计算包括合适的电路和产生交叉速率信号的步骤的机动启动逻辑信号的方法和装置由路线数据变量和将包括恒定的最大分支角的转换因子修改。 此外，该电信号由飞行器的实际可变速度修改，并且提供比较装置以将最终速度修正信号与对应于交叉距离的信号进行比较。 当检测到过零点时，所得到的逻辑信号指示应该启动机动转弯以适当地拦截并捕获无线电路线。

公开(公告)号：US3778602A

公开(公告)日：1973-12-11

申请号：US3778602D

申请日：1970-10-30

Applicant: KING RADIO CORP

Inventor： SCHMITT J

IPC: G01S1/02 ,  G01S19/05 ,  G01S19/11 ,  G01S19/21 ,  G01S19/29 ,  G01S19/46 ,  G06G7/78

CPC classification number: G01S1/02

Abstract: A solid state filter for area navigation computers and similar avionics equipment which rejects errors commonly resulting from VOR course scalloping and multipath effect on signal propagation between the ground station and an airborne receiving unit. The subject filter operates to sense the rate at which the ground station signal phase is changing and adds a compensating signal thereto in the receiving unit. As a result, the ground station signal can be filtered with a long time constant to reject course scalloping and other errors while, at the same time, compensating for the resulting aircraft position lag. The amount of course scalloping rejection can be increased until limited by the desire to maneuver the aircraft.

Abstract translation: 用于区域导航计算机和类似航空电子设备的固态滤波器，其拒绝通常由地面站和机载接收单元之间的信号传播引起的VOR过程扇贝和多路径影响的错误。 目标滤波器用于检测地面站信号相位变化的速率，并在接收单元中向其补充补偿信号。 结果，地面站信号可以用较长的时间常数进行滤波，以抵消当前扇贝和其他错误，同时补偿飞机的位置滞后。 当然，扇贝的排除量可以增加，直到受飞机操纵的限制。

公开(公告)号：US3696422A

公开(公告)日：1972-10-03

申请号：US3696422D

申请日：1970-02-27

Applicant: KING RADIO CORP

Inventor： BURRELL GARY L

IPC: H03L7/185 ,  H04B1/50 ,  H04B7/00

CPC classification number: H04B1/50 ,  H03L7/185

Abstract: The subject NAV/COM unit incorporates a multi-channel navigation receiver with a multi-channel communications transceiver and associated audio system. The NAV/COM unit utilizes analog, digital and heterodyne techniques in a unique combination to accomplish frequency synthesis in simplex transceivers. A stabilized master oscillator (SMO) provides frequency generation. A feedback loop is used to slave a voltage controlled oscillator (VCO) frequency to an exact multiple of a crystal controlled reference oscillator frequency. The VCO output frequency is divided by two, mixed with a signal from a high frequency crystal oscillator, divided by n, and compared in frequency and phase with a low frequency crystal oscillator signal. The filtered error signal provides bias to the VCO in such a manner that when the VCO frequency is low, the error signal is a high voltage, and when the VCO frequency is above the desired frequency, the error signal is a low voltage. This error signal drives the VCO towards the selected frequency. When the VCO gets within a certain range of the desired frequency, the loop captures the VCO and pulls it into phase lock. In this condition, the loop establishes an error signal that is essentially a square wave with a frequency equal to that of the reference oscillator. A low pass filter recovers the DC component of the square wave and biases the VCO to maintain the selected frequency output. The square wave duty factor and thus the filtered DC/VCO bias voltage, varies accordingly with selected VCO frequency. The communications section utilizes a two crystal heterodyne oscillator in its associated SMO for two band frequency synthesis.

Abstract translation: 主题NAV / COM单元包含具有多通道通信收发器和相关音频系统的多通道导航接收器。 NAV / COM单元采用独特组合的模拟，数字和外差技术来实现单工收发器中的频率合成。 稳压主振荡器（SMO）提供频率发生。 反馈回路用于将压控振荡器（VCO）的频率从晶体控制参考振荡器频率的精确倍数。 将VCO输出频率除以2，与来自高频晶体振荡器的信号相乘除以n，并在频率和相位与低频晶体振荡器信号进行比较。 滤波后的误差信号以VCO的频率为低的方式向VCO提供偏置，误差信号为高电压，当VCO频率高于所需频率时，误差信号为低电压。 该误差信号将VCO驱动到所选频率。 当VCO达到所需频率的一定范围内时，环路捕获VCO并将其拉入锁相。 在这种情况下，环路建立一个基本上是频率等于参考振荡器频率的方波的误差信号。 低通滤波器恢复方波的直流分量，并偏压VCO以保持选定的频率输出。 方波占空比因此滤波的DC / VCO偏置电压随所选的VCO频率而相应变化。

公开(公告)号：US3621224A

公开(公告)日：1971-11-16

申请号：US3621224D

申请日：1969-09-30

Applicant: KING RADIO CORP

Inventor： FRIDAY ROBERT E

IPC: G06G7/18 ,  G11C27/02

CPC classification number: G11C27/026 ,  G06G7/18

Abstract: An electronic device for tracking and/or storing an electrical voltage level that utilizes an analog integrator, with an associated switch for performing track and initial storage. A hybrid feedback system prevents drift in the integrator output by utilizing the time required for a periodic fixed-rate pump signal to rise to the level of the integrator output signal, This time is used to determine the number of cycles from a fixed-frequency oscillator that occur in that time period. Deviations in the number of cycles (or portions of a cycle) occurring in the time interval are used to generate an error signal which is fed back to the integrator to correct for integrator voltage drift thereby causing the output of same to seek a quantum but stable value.

公开(公告)号：US3512154A

公开(公告)日：1970-05-12

申请号：US3512154D

申请日：1968-08-05

Applicant: KING RADIO CORP

Inventor： FARRAR JAMES G

IPC: G01S13/78 ,  G01S9/56

CPC classification number: G01S13/784

公开(公告)号：US3500413A

公开(公告)日：1970-03-10

申请号：US3500413D

申请日：1967-08-30

Applicant: KING RADIO CORP

Inventor： DOHOGNE JAMES R ,  KELLY DOYLE J SR

IPC: G01S1/02 ,  G01S19/42 ,  G01S1/08

CPC classification number: G01S1/02

公开(公告)号：US3213346A

公开(公告)日：1965-10-19

申请号：US23984762

申请日：1962-11-23

Applicant: KING RADIO CORP

Inventor： KING JR EDWARD J

IPC: H02M3/338

CPC classification number: H02M3/3388

公开(公告)号：US3877024A

公开(公告)日：1975-04-08

申请号：US39198273

申请日：1973-08-27

Applicant: KING RADIO CORP

Inventor： FRIDAY ROBERT E

IPC: G08C19/48 ,  H03K13/02

CPC classification number: G08C19/48

Abstract: An electronic substitute for the feedback synchro in a synchro control system is described. The three-wire output from a conventional synchro device is delivered to electronic circuitry which generates a rectangular output waveform, the phase of which varies linearly with respect to the vector angle of the synchro rotor shaft. This variable phase, when synchronized, provides a linear output to a feedback control system when deviations from a reference synchro angle setting occur.