Waveform observation apparatus

Details Waveform observation apparatus Waveform observation apparatus

1984-01-23

1986-10-07

Karlsen, Ernest F.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Cathode ray

324111, 324157, G01R 1300, G01R 100

Patent

active

046161759

ABSTRACT:
This invention relates to a waveform observation apparatus such as an oscilloscope, and more particularly to a waveform observation apparatus suitable for a liquid crystal oscilloscope having a liquid crystal display of low power consumption.
The waveform observation apparatus comprises at least a waveform memory in which a waveform data is to be written, an input circuit to control the waveform memory to write the waveform data therein and a power supply circuit to drive the waveform memory and the input circuit. The power supply circuit includes means to only intermittently apply the power supply voltage for at least part of the input circuit for a time necessary for writing a waveform. This causes the power consumption to be lowered.

REFERENCES:
patent: 3599222 (1971-08-01), Franklin et al.
patent: 4120009 (1978-10-01), Iwasawa

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