Appeal No. 96-0550
Application 07/960,148
sampling of an image in a telecommunication system (Col. 2, lines
7-9). Video data is first compressed and sent over a low
bandwidth channel (Col. 1, lines 60-64). The data is first
digitized by assigning a binary value to each picture element or
pel. (Col. 1, lines 66-67). As depicted in Figure 4, this
assignment of a binary value to each element known as bilevel
sampling produces a stepped appearance when the video data is
reproduced. To reduce the visual impact of the stepped edges,
Lasher teaches that gray-scale pels are selectively introduced
before the image is displayed (Col. 2, lines 50-53).
The examiner is of the opinion that:
...Iino teaches that an optical
projector apparatus is conventionally
used in automotive vehicles for head up
displayed-signals (see fig. 1). Thus,
it would have been obvious to use the
optical instrumentation system taught by
Ott in the head up display environment
as taught by Iino...
...it would have been obvious to use the
teaching of Lasher in the device of Ott
as
modified to use gray scale to soften the
edges of the image so that the optical
quality of the perceived image could
have been improved. ...since Ott
already had the idea of modulating the
deformable mirrors to upgrade the
perceived image, it would have been
certainly obvious ...to have been
motivated to have modulated the
deformable mirrors of [O]tt as modified
-8-
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