Title:
X-Y COORDINATES INPUT DEIVCE
Document Type and Number:
Japanese Patent JPH0519962
Kind Code:
A
Abstract:
PURPOSE: To warn the cleaning time of a foreign matter stuck on a spherical body.
CONSTITUTION: The cumulative moving distance of a ball 8 is obtained by calculating the movement of the ball 8 by calculating count values from an X-axis encoder 21 and a Y-axis encoder 23, and summing these successively. When this cumulative moving distance exceeds a prescribed value, an LED 18 is lighted so as to warn that it is the time of needing to clean.
Inventors:
INAMURA JUNICHI
Application Number:
JP19740291A
Publication Date:
January 29, 1993
Filing Date:
July 12, 1991
Export Citation:
Assignee:
ALPS ELECTRIC CO LTD
International Classes:
G06F3/0354; (IPC1-7): G06F3/033
Attorney, Agent or Firm:
Kenjiro Take (2 outside)
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