Evaluating circuit for square wave signals

Details Evaluating circuit for square wave signals Evaluating circuit for square wave signals

1990-09-04

1992-04-14

Miller, Stanley D.

328109, 328133, 328135, H03K 700

Patent

active

051051591

ABSTRACT:
An evaluating circuit for evaluating square wave signals is provided. A plurality of square wave signals are transmitted to a memory which has a number of bistable toggle stages which correspond to the number of square wave signals. The toggle stages are driven by an auxiliary clock signal. An up-down counter is also driven by the auxiliary clock. The circuit further includes a comparator which compares the square wave signals and the state of the up-down counter and generates a control signal over at least one control line to the up-down counter in response to the comparison. The state of the up-down counter is changed in an up or down direction or not changed in response to the control signal.

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