Compass data converter
AssigneeSperry Corporation
InventorCharles R. Wesner
Life of this patent
Estimating the term…
Abstract
The peaks of synchro or step data representative of compass heading are detected and the resulting logic levels are latched into a register by an enable pulse generated in response to the data itself. Three outputs from the register are fed directly to the computer input port and provide 1/6.degree. resolution and 1.degree. range. Two of the register outputs are decoded and used to operate an up/down counter. The output of the counter is applied to the computer input port and provide 1.degree. resolution and 16.degree. range.
Claims5
A compass data converter for use in synchro and step data compass systems having three channels, comprising means to receive modulated pulse trains representative of the instantaneous compass heading reference means for providing enabling pulses synchronized with said modulated pulse trains, register means, gating means responsive to said enabling pulses for switching said register means in accordance with the instantaneous data in each of said three channels, timing means for providing an alarm signal when the time interval between successive enabling pulses exceeds a predetermined value, input/output means, means to apply the output of said register means to said input/output means, counter means, coupled to said register means and said input/output means, to count the number of degrees of net change in compass headings between successive readings, means to apply the output of said counter means to said input/output means, said input/output means being programmed to read information into and out of an external computer.
Dependencies are inferred from the claim text.