Appeal No. 1996-2369 Page 2
Application No. 08/191,723
March 14, 1995, which was denied entry. The appellants filed
a second amendment after final rejection on June 15, 1995,
which was entered. We reverse.
BACKGROUND
The invention at issue in this appeal relates to a liquid
crystal display (LCD). The LCD has an effective horizontal
address range of -1024 to +1023. Only eleven bits of the
sixteen bits of LCD’s address data are needed to specify the
effective horizontal address range. The other five bits,
which are unused, can be a source of error. Specifically,
address data in the five bits can cause an unintentional
display on the LCD. In the past, software was used to
discriminate address data in the five bits to prevent
unintentional display. The software burdened the central
processing unit (CPU) and slowed the display. The appellants’
invention employs hardware circuitry to reduce the burden and
speed the display.
Also in the past, when write instructions were to be
successively executed over a range of addresses in the LCD, it
was necessary to designate write addresses for each address.
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