Title:
DISPLAY SYSTEM CONTROL SYSTEM
Document Type and Number:
Japanese Patent JP2778860
Kind Code:
B2
Abstract:
PURPOSE: To prevent a display system from breaking down when the oscillation of a clock for dynamic driving stops in a display system control system which drives the display system dynamically.
CONSTITUTION: The clock signal of a clock generating circuit 4 incorporated in a display system controller 1 is led out of an output terminal 5 and inputted to a microprocessor unit 2 through an input terminal 6. The microprocessor unit 2 once detecting the clock signal stopping sends a control signal for turning OFF the output of the display system controller 1 to the display system 1 from the output terminal 7 of the microprocessor unit 2 to the input terminal 8 of the display system controller 1. Consequently, the output of the display system controller 1 is turned OFF. When the clock generating circuit 4 stops oscillation, the output of the display system controller 1 is turned OFF to prevent the display system 3 from breaking down.
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Inventors:
HAYASHI DAISAKU
Application Number:
JP20926691A
Publication Date:
July 23, 1998
Filing Date:
August 21, 1991
Export Citation:
Assignee:
MITSUBISHI DENKI KK
International Classes:
G06F1/04; G09G3/00; G09G3/12; G09G3/20; (IPC1-7): G09G3/00; G06F1/04; G09G3/12
Domestic Patent References:
| JP2130585A | ||||
| JP5638094A | ||||
| JP6478296A | ||||
| JP57148794A | ||||
| JP2144592A | ||||
| JP4823393A | ||||
| JP61104495U | ||||
| JP63128591U |
Attorney, Agent or Firm:
Shigeaki Yoshida (4 outside)
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