Appeal No. 95-1783
Application 08/069,957
This is a decision on the appeal under 35 U.S.C. § 134
from the examiner's rejection of claims 1-4, which constitute
all the claims in the application.
The disclosed invention pertains to a method and
apparatus for detecting the presence of a motor vehicle in a
detection zone. A plurality of sound transducers are
spatially arranged to detect sounds of motor vehicles within
the detection zone. Spatial and frequency discrimination
circuitry determines when a motor vehicle is within the
detection zone.
Representative claim 1 is reproduced as follows:
1. An apparatus for detecting the presence of a motor
vehicle (105) in a detection zone (107), said apparatus
comprising:
a first electro-acoustic transducer (201) for
receiving a first acoustic signal radiated from said motor
vehicle and for converting said first acoustic signal into a
first electric signal that represents said first acoustic
signal;
a second electro-acoustic transducer (203) for
receiving a second acoustic signal radiated from said motor
vehicle and for converting said second acoustic signal into a
second electric signal that represents said second acoustic
signal;
spatial discrimination circuitry (305) for creating a
third electric signal, based on said first electric signal and
2
Page: Previous 1 2 3 4 5 6 7 8 9 10 Next
Last modified: November 3, 2007