Appeal No. 2003-1841 Page 3
Application No. 09/272,956
switch initially downloads the user interface state machine into the terminal. The
appellants assert that use of the state machine resolves interpretive race conditions by
maintaining an explicit set of state-based assignments in the terminal and reduces
bandwidth consumption by reducing or eliminating system updates to the terminal. (Id.
at 7.)
A further understanding of the invention can be achieved by reading the following
claim.
13. An apparatus comprising:
a terminal operative to store information representative of at least a
portion of a state machine, wherein each of a plurality of states in the state
machine specifies a set of labels for a corresponding plurality of soft-
labeled keys of the terminal, and to process the information to generate a
display including a given one of the sets of labels, wherein the information
representative of the state machine is downloaded from a switch of the
system into the terminal;
the state machine being configured to run substantially in its
entirety within the terminal, independent of the switch, so as to control
assignment of the sets of labels to the soft-labeled keys in response to
user input without requiring further information from the switch, and being
configured such that a transition between a given pair of states of the state
machine in response to the user input automatically alters the assignment
of the sets of labels to the soft-labeled keys and causes an identifier of a
corresponding switch-based feature to be transmitted from the terminal to
the switch.
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Last modified: November 3, 2007