Sector scan computer

Details Sector scan computer Sector scan computer

1972-06-02

1987-03-17

Tubbesing, T. H.

Electrical pulse counters, pulse dividers, or shift registers: c

Applications

Measuring or testing

328111, 3281291, 342 13, G01D 2102, H03K 522, G01S 744

Patent

active

046513329

ABSTRACT:
A sector-scan period computer comprising a pulse-width discriminator and a ulse-interval filter to allow only pulses falling into a predetermined width range and with a given time interval between them to pass. These pulses are fed to an integrator which provides an integrated signal for each group (burst) of pulses, the bursts being periodic. The integrated signals are divided by two and a pulse is produced for each signal that remains. Extraneous non-periodic signals are filtered out by a period filter and the time between successive pulses is counted by a BCD counter. The counter output is stored in a memory and displayed by a decimal number display.

REFERENCES:
patent: 3155912 (1964-11-01), Applebaum et al.
patent: 3391403 (1968-07-01), Phillips
patent: 3514707 (1970-05-01), Campanard et al.
patent: 3603886 (1971-09-01), Norrs

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