Computer graphics processing and selective visual display system – Display peripheral interface input device – Cursor mark position control device
Reexamination Certificate
2006-12-26
2006-12-26
Hjerpe, Richard (Department: 2629)
Computer graphics processing and selective visual display system
Display peripheral interface input device
Cursor mark position control device
Reexamination Certificate
active
07154477
ABSTRACT:
A low power tracking device and a method of use thereof is described. The method includes receiving first tracking information from a first tracking device and periodically determining accuracy of the first tracking information. A second tracking device is activated and used to acquire second tracking information when said determining indicates that the accuracy of the first tracking information is inadequate. The first tracking device is substantially lower power device that the second tracking device.
REFERENCES:
patent: 5805144 (1998-09-01), Scholder et al.
patent: 6351257 (2002-02-01), Liu
Hotelling Steve
Huppi Brian
Krah Christoph
Strickon Joshua
Apple Computer Inc.
Beyer Weaver & Thomas LLP
Hjerpe Richard
Pervan Michael
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