Appeal No. 95-5091 Page 2
Application No. 08/054,166
The subject matter of the invention is a vehicle detector
for installation in a roadway surface. Claim 32 states the
claimed subject matter as follows:
32. A sensing system for highway vehicles travelling
on a roadway surface, comprising:
a pair of sensors mounted below said roadway
surface and spaced from each other by a
predetermined distance in a direction substantially
parallel to said travelling of the highway vehicles
on the roadway surface;
data processing means connected to said sensors
for determining speed and length of the highway
vehicles as a function of differential [sic] between
field signatures respectively measured by said
sensors and the predetermined distance therebetween;
magnetometer means mounted in operative
proximity to said sensors for measuring a magnetic
field having a first component substantially
parallel to said roadway surface and a second
component substantially perpendicular to the first
component; and
means operatively connecting the magnetometer
means to the data processing means for also
determining vehicle presence on the roadway surface
as a function of said components of the magnetic
field measured by the magnetometer means.
(Paper No. 10 (Admt. filed 26 July 1994) at 1-2 (indentation
added).)
The examiner relies on the combination of the following
references in maintaining the rejection:
Scarzello et al. (Scarzello) 4,302,746 24 Nov. 1981
Gebert et al. (Gebert) 5,008,666 16 Apr. 1991
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