Space-efficient ergonomic telephony keypad
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United States of America Patent
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-
Apr 15, 2008
Grant Date -
Oct 27, 2005
app pub date -
Jun 29, 2005
filing date -
Jan 2, 2004
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A space-efficient ergonomic telephony keypad is described which comprises three separate groups of four buttons collectively capable of performing twelve distinct electronic switch operations. Each button is formed for tactile operation. Each group has the four buttons positioned about equally around an imaginary central axis. And, each group of four buttons is positionally rotated about 45 degrees relative to the positioning of an adjacent group of four buttons.
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Family
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Cited Art Landscape
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