Computer graphics processing and selective visual display system – Display peripheral interface input device – Cursor mark position control device
Reexamination Certificate
2007-03-27
2007-03-27
Tung, Kee M. (Department: 2628)
Computer graphics processing and selective visual display system
Display peripheral interface input device
Cursor mark position control device
C345S157000, C345S158000, C345S159000, C345S160000, C345S161000, C345S162000, C345S163000, C345S164000, C345S165000
Reexamination Certificate
active
10948534
ABSTRACT:
According to one aspect of the invention, a movable cursor control device is provided for controlling a cursor on a display screen of a digital processing system. One exemplary cursor control device comprises a housing, an electromagnetic emitting device coupled to the housing, and an electromagnetic detector coupled to the housing. The electromagnetic detector detects reflections of signals emitted from the electromagnetic emitting device and determines when the housing has been lifted from a surface. In another aspect of the invention, an exemplary method is provided for controlling a cursor on a display screen of a digital processing system. The exemplary method includes holding the cursor relative to an object on the display screen using a cursor control device activated by a user, detecting that the user no longer activates the cursor control device, and detecting that the user has lifted the cursor control device from a surface when the cursor control device is no longer activated by the user. Further, the method allows for continuing to hold the cursor relative to the object after detecting that the user no longer activates the cursor control device.
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Andre Bartley K.
Cappels, Sr. Richard D.
Doar Jeffrey B.
Farag Abraham S.
Lyon Benjamin B.
Apple Inc.
Blakely , Sokoloff, Taylor & Zafman LLP
Tran Tam
Tung Kee M.
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