Electrical computers and digital data processing systems: input/ – Input/output data processing – Peripheral adapting
Reexamination Certificate
2006-02-21
2006-02-21
Elamin, A. (Department: 2116)
Electrical computers and digital data processing systems: input/
Input/output data processing
Peripheral adapting
C710S120000, C345S163000, C345S169000, C345S173000
Reexamination Certificate
active
07003600
ABSTRACT:
A pointing device has a controllable selector for sending a version compatible signal and a newer functionality signal to a computer terminal. The pointing device has an operating unit which produces a signal which can be passed directly to the computer terminal, or can be modified with a new functionality, and then passed to the computer terminal. A controller in the pointing device monitors a protocol signal line to determine whether a version compatible signal or a new functionality signal is called for. The controller can activate a new functionality circuit and the selector to send the appropriate signal to the computer terminal. The controller can also monitor the protocol signal line in a power-on state, and execute a procedure to determine the functionality requested by the protocol signal line.
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Dickstein Shapiro Morin & Oshinsky LLP.
Elamin A.
NEC Corporation
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