Computer graphics processing and selective visual display system – Display peripheral interface input device – Light pen for fluid matrix display panel
Patent
1995-11-02
1997-08-05
Hjerpe, Richard
Computer graphics processing and selective visual display system
Display peripheral interface input device
Light pen for fluid matrix display panel
345140, 361731, 364268, 364481, 439912, G09G 500
Patent
active
056547390
ABSTRACT:
The controller executes a control calculation based on proportional and integration calculation parameters which are preset, and outputs a control output to a process, and comprises a display device for displaying panels having characters and figures thereon; a panel expanding key for instructing the display device to expand, or change, the panel to be displayed; a plurality of keys for setting control operations and various parameters; an operating panel generating unit for displaying as a bar graph; a process value and a control output value on an operating panel to be displayed on the display device; a trend graph panel generating unit for displaying the transition of the process value on a trend graph panel to be displayed on the display device; a tuning panel generating unit for displaying information to control the control parameter used in the control calculation on a tuning panel to be displayed on the display device; a display controlling unit for controlling the displays of the panels; and an operation key function changing unit for changing the functions of the plurality of keys.
REFERENCES:
patent: 4476531 (1984-10-01), Marino et al.
patent: 4578640 (1986-03-01), Crooke et al.
patent: 4745543 (1988-05-01), Michener et al.
patent: 4882584 (1989-11-01), Nakamura et al.
patent: 5233501 (1993-08-01), Allen et al.
patent: 5245324 (1993-09-01), Jonker et al.
Kamata Yoshiyuki
Nakagawa Masayuki
Sakai Yoshikatsu
Tsuda Katsuhisa
Yamaguchi Kenji
Hjerpe Richard
Kojima Moonray
Lao Lun-Yi
Yokogawa Electric Corporation
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