Computer graphics processing and selective visual display system – Display peripheral interface input device – Cursor mark position control device
Reexamination Certificate
2008-01-08
2008-01-08
Hjerpe, Richard (Department: 2629)
Computer graphics processing and selective visual display system
Display peripheral interface input device
Cursor mark position control device
C345S163000, C345S165000
Reexamination Certificate
active
07317448
ABSTRACT:
A system, method, and method of manufacturing directed to an optical device with increased accuracy in tracking ability. The increased accuracy can be achieved by using a multiple sensor system. A second sensor is added to the optical device. The second sensor increases the probability of obtaining a high quality image. Thus, the tracking ability of the device can be performed with greater accuracy over a single sensor device. The second sensor can also perform additional functions.
REFERENCES:
patent: 4880968 (1989-11-01), Kwang-Chien
patent: 2002/0093487 (2002-07-01), Rosenberg
patent: 2004/0017354 (2004-01-01), Muranami
patent: 2004/0227726 (2004-11-01), Shahoian
Egloff Olivier
Eichenberger Pascal
Joss Bernhard
Piot Julien
Sasselli Nicolas
Hjerpe Richard
Logitech Europe S.A.
Said Mansour M.
The Law Office of Deepti Panchawagh-Jain
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