Registers – Coded record sensors – Particular sensor structure
Reexamination Certificate
2004-12-22
2008-09-30
Le, Thien M (Department: 2887)
Registers
Coded record sensors
Particular sensor structure
C235S435000, C235S440000
Reexamination Certificate
active
07428990
ABSTRACT:
Detecting information relating to a medium in an interactive media device. The device includes a surface able to receive the medium and a sensor network embedded within the surface. The sensor network includes a configuration able to detect medium information. The device has a processor able to issue signals to the sensor network and to receive signals indicating capacitance change caused by proximity of a region of the medium to the sensor network. Thus, the processor is able to detect medium information based on the capacitance change.
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Flowers Mark
Milford Peter
Wilson David
Le Thien M
LeapFrog Enterprises, Inc.
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