Appeal No. 97-0673
Application 08/143,370
obviousness. We agree with the examiner that Kamiwano does
disclose use of a two dimensional imager as is required by the
claims.
The appellants focus on those embodiments of Kamiwano
which use pairs or sets of linear phototransistor arrays and
fail to appreciate another portion of Kamiwano’s disclosure
which discusses and points out the benefits of using a
planarly arranged matrix of phototransistors as the sensor.
In Kamiwano, before the disclosure starts to discuss an
improved invention making use of sets of linear arrays, there
is a brief discussion of what had previously been thought of
by the inventors there in the general subject matter area of
optical real-time measuring of flowing particles.
Specifically, from the bottom of page 5 to the top of
page 6 in Kamiwano, it is stated:
For a particle measuring method using such a light
transmission method [general optical arrangement as
shown in Figure 1], the inventor has already
proposed a method for calculating the speed of the
particle and particle size based on the principle
shown in Figure 2 in which a number of
phototransistors are arranged in planar form at the
sensor (5). The method itself can carry out
particle measurement in real time and it can be used
with the measuring device of the invention.
5
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