Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Cathode ray
Patent
1994-06-28
1997-09-16
Karlsen, Ernest F.
Electricity: measuring and testing
Measuring, testing, or sensing electricity, per se
Cathode ray
364487, G01R 1300, G01R 1900
Patent
active
056684690
ABSTRACT:
In a digital oscilloscope, a sharp and fine line can be displayed at high horizontal resolution. The digital oscilloscope includes a memory for storing waveform data to be displayed; a display data output unit including sync signal generating unit for generating a sync signal and an output unit for reading the waveform data from the memory in synchronism with the sync signal to output said read waveform data; and an audio/visual color dot matrix plane display device including a display unit having dots arranged in a matrix form for color representation. The scan clock signal generator generating the scan clock signal in synchronism with the sync signal produced from sync signal generating unit, and the dot scan control unit sequentially supplying the display data outputted from the output unit in synchronism with the scanning clock signal to the dots of the display unit, whereby the content of the waveform data is displayed on the display unit.
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T. Okada, "Color TFT LCD Forms Core of B5, Notebook Color Digital Oscilloscope", Journal Electron. Eng., vol. 66, No. 326, Feb. 1994, pp. 34-37.
Elektronik, vol. 35, No. 8, Apr. 1986, DE pp. 126-130 Messplatz fur die Westentasche abstract; figures 1-3 p. 128, right column, paragraph 3.
Electronic Engineering, vol. 66, No. 806, Feb. 1994, London GB pp. 57-61, Colour displays for digital storage oscilloscopes p. 57, left column, line 1 - column 3, line 1; figure 2.
Journal Electr. Eng., vol. 31, No. 326, Feb. 1994, JP pp. 34 - 37 T. Okada Color TFT LCD Forms Core of B5, Notebook Color Digital OScilloscope abstract; figure 1.
Iwabuchi Mitsunobu
Kawamura Shigenori
Natori Kazuya
Hitachi Denshi Kabushiki Kaisha
Karlsen Ernest F.
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