JPH0425323U - - Google Patents

Description

[Brief explanation of the drawing]

Figure 1 is a block diagram showing an embodiment of this invention.
FIG. 2 is a block diagram showing a specific example of the rising waveform generator 24, FIG. 3 is a time chart showing an example of the operation of FIG. 1, and FIG. 4 is a diagram showing the operation of the digital filter.

Claims (1)

[Claims for Utility Model Registration] A rising edge detector that detects the rising edge of an input digital signal, a falling detector that detects the falling edge of the input digital signal, and a rising edge detection output of the rising edge detector. a rising waveform generator whose reading is started and a rising waveform is stored; a falling waveform generator whose reading is started at the falling detection output of the falling detector and whose falling waveform is stored; a DA converter that converts the waveform read from the rising waveform generator and the waveform read from the falling waveform generator into analog signals, the rising waveform generator and the falling waveform generator; is, when one of them is being read,
A simple digital filter characterized in that when the reading of the other waveform is started, the reading of the one is stopped, and when the stored waveform is read to the end, the last output state is maintained. .