Coded data generation or conversion – Bodily actuated code generator – Including keyboard or keypad
Reexamination Certificate
2006-02-28
2006-02-28
Wong, Albert K. (Department: 2635)
Coded data generation or conversion
Bodily actuated code generator
Including keyboard or keypad
C341S020000, C341S173000, C345S168000, C345S172000, C340S010100, C340S572100
Reexamination Certificate
active
07006014
ABSTRACT:
A wireless keyboard and reader combination comprises a keyboard having a plurality of keys, an antenna, and a plurality of passive transponder circuits coupled to the antenna and associated with the keys. The passive transponder circuits are selectively coupled to receive power from the antenna and provide a coded response identifying a key in response to key activation. An associated reader includes a source of an interrogating field applied to the antenna of the keyboard and a decoder for determining the coded response from the passive transponder circuits.
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