Oscilloscope

Details Oscilloscope Oscilloscope

1984-04-23

1987-11-17

Brigance, Gerald L.

Communications: electrical

Land vehicle alarms or indicators

Internal alarm or indicator responsive to a condition of the...

340784, G09G 300

Patent

active

047076917

ABSTRACT:
This invention relates to an oscilloscope in which waveforms can be indicated on a matrix type plane display such as a liquid-crystal display or plasma display as well as on a CRT (cathode-ray tube). The oscilloscope of the invention comprises a memory in which waveform data can be written or from which it can be read, a writing control circuit to control writing the waveform data on the memory, a reading control circuit to control reading the waveform data from the memory and a display to indicate the read waveform data. The writing and reading control circuits have a predetermined writing prohibition period during which writing is prohibited after writing all the data of one waveform. The writing period during which data of one waveform is written has a minimum uniform length, and a period during which the data can be availably read from the memory becomes longer as the writing frequency becomes longer.

REFERENCES:
patent: 4225940 (1980-09-01), Moriyasu et al.
patent: 4250503 (1981-02-01), Shanks
patent: 4346378 (1982-08-01), Shanks
patent: 4465999 (1984-08-01), Tsuzuki et al.
patent: 4468661 (1984-08-01), Van Doorn et al.
patent: 4510444 (1985-04-01), Haussel et al.

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