公开(公告)号：US3599096A

公开(公告)日：1971-08-10

申请号：US3599096D

申请日：1969-01-17

Applicant: BENDIX CORP

Inventor： STEMPLES JON C ,  EVERETT SAMUEL R

IPC: G01R1/28 ,  G01R17/00

CPC classification number: G01R1/28

Abstract: Each comparator of a plurality of comparators receives as one input one of a plurality of voltages sampled from intermediate points in a resistor string which is fed by a constant current source. Each comparator also receives as a second input as unknown voltage. The sampled voltages define voltage windows with an output signal being generated when the unknown voltage falls within one or the other of the windows. A window level voltage is impressed at an intermediate point in the resistor''s string. Variation of the window level voltage causes the voltage windows to be translated along a voltage magnitude scale.

公开(公告)号：US3636336A

公开(公告)日：1972-01-18

申请号：US3636336D

申请日：1969-09-16

Applicant: BENDIX CORP

Inventor： EVERETT SAMUEL R ,  SHEAR WAYNE G ,  ARDILA JORGE E

IPC: G06F17/10 ,  G01S11/08 ,  G06F1/02 ,  G06F7/68

CPC classification number: G01S11/08 ,  G06F1/02 ,  G06F7/68

Abstract: Each pulse in a pulse train resets a counter to a predetermined initial state. A frequency generator generates a plurality of timing signals each of which comprises a different predetermined frequency. A gating means controlled by the state of the counter selects one of the timing signals to count down the counter. The state of the counter at the time of counter reset is thus related to the pulse repetition frequency of the pulses. Scaling of the system parameters permits the system to generate a sequence of straight line segments which approximate a desired function. In particular, proper scaling of the system parameters permits the system to operate as a digital altitude rate generator if the pulses represent fixed values of altitude change.

公开(公告)号：US3581309A

公开(公告)日：1971-05-25

申请号：US3581309D

申请日：1968-09-16

Applicant: BENDIX CORP

Inventor： SHEAR WAYNE G ,  OLMSTEAD MERLIN E ,  EVERETT SAMUEL R

IPC: G01S11/08 ,  G04G7/02 ,  G01S9/56

CPC classification number: G01S11/08 ,  G04G7/02

Abstract: A means of synchronizing clocks without addressing within a cooperative collision avoidance system which utilizes the time slot of the aircraft requesting synchronization. During its time slot, an aircraft transmitting a collision avoidance message automatically requests clock synchronization. All other aircraft within the collision avoidance network which receive the synchronization request will respond in a random manner with a probability inversely proportional to the number of potential responding aircraft within the collision avoidance network. To accomplish this each cooperating aircraft is equipped to monitor the number of occupied time slots so as to determine the number of potential responding aircraft, determines the probability of its response with respect thereto and determines in accordance with the probability thus derived whether it should respond to this particular synchronization request.