Computer graphics processing and selective visual display system – Display peripheral interface input device – Stylus
Reexamination Certificate
2006-06-27
2006-06-27
Wu, Xiao (Department: 2674)
Computer graphics processing and selective visual display system
Display peripheral interface input device
Stylus
C345S173000, C178S019010
Reexamination Certificate
active
07068262
ABSTRACT:
A stylus for an electrographic position location apparatus is disclosed. In one embodiment, the stylus includes a writing element that is retractable. The stylus may have a proximal end and a distal end. A conductive annular structure may be at the proximal end of the stylus.
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British Micro, “Operating Guide to Grafpad”, 1982, 28 pp.
Kuei Yao Willey Julie Wu
Lynch Larry
Milford Peter Nevil
Perkins Michael
Voskuil Kim
LeapFrog Enterprises, Inc.
Townsend and Townsend / and Crew LLP
Wu Xiao
LandOfFree
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