VARIABLE TIME-INTERVAL GENERATOR

Patent · Sat Oct 31 04:00:00 EST 1959

OSTI ID:4226393

Gross, J E

This patent relates to a pulse generator and more particularly to a time interval generator wherein the time interval between pulses is precisely determined. The variable time generator comprises two oscillators with one having a variable frequency output and the other a fixed frequency output. A frequency divider is connected to the variable oscillator for dividing its frequency by a selected factor and a counter is used for counting the periods of the fixed oscillator occurring during a cycle of the divided frequency of the variable oscillator. This defines the period of the variable oscillator in terms of that of the fixed oscillator. A circuit is provided for selecting as a time interval a predetermined number of periods of the variable oscillator. The output of the generator consists of a first pulse produced by a trigger circuit at the start of the time interval and a second pulse marking the end of the time interval produced by the same trigger circuit.

• Research Organization: Originating Research Org. not identified
• NSA Number: NSA-13-022514
• Assignee: U.S. Atomic Energy Commission
• Patent Number(s): US 2886775
• OSTI ID: 4226393
• Country of Publication: United States
• Language: English

Related Subjects

CIRCUITS
ELECTRICITY
FREQUENCY
GENERATORS
METALLURGY AND CERAMICS
OSCILLATIONS
PULSES
TRIGGERS
VARIATIONS