Appeal 2007-1572
Application 09/726,831
Appellants’ invention relates to a system for managing display data in
a computing device, particularly a personal digital assistant (PDA) or other
hand-held computing device. The device includes internal and external
display random access memory (RAM), and display logic which manages
and allocates the internal and external display RAM according to the display
mode. The display logic is configured to change the display mode during
operation of the computing device (Specification 2:18-27).
Claim 1 is exemplary:
1. A computing device, comprising:
a communications bus;
a display configured to display in more than one display mode
and coupled to the communications bus;
a processor, coupled to the display and to the communications
bus; and
a display controller coupled to the communications bus and
having dedicated internal display random access memory, the
internal display random access memory being used for storing
display information, the internal display random access
memory configured to receive and provide access to display
information to be communicated to the display, the internal
display random access memory being controlled by display
logic; and
a dedicated external display random access memory coupled to
the display controller, the display logic being configured to
manage the internal and external display random access
memory and allocate the internal and external display random
access memory across the internal and external display random
access memory according to the display mode and the display
logic is configured to change the display mode during operation
2
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