Cursor movement control key switch
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jun 5, 1990
Issued Date -
N/A
app pub date -
Feb 17, 1987
filing date -
Feb 3, 1982
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A cursor movement control key switch for controlling movement of a cursor on a display screen of a CRT or the like requires only one key. Operation of a single key allows both control of the direction of the cursor, and control of brightness of the display, volume level of sounds at a speaker, a display size of the cursor or the like. A CPU periodically detects the states of signals at terminals corresponding to contacts disposed in the key switch so as to produce signals to perform the above control operations. The key switchy provides improved operability.
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Family
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Cited Art Landscape
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