Data processing: measuring – calibrating – or testing – Measurement system in a specific environment – Electrical signal parameter measurement system
Reexamination Certificate
2005-08-26
2008-08-19
Barlow, Jr., John E. (Department: 2863)
Data processing: measuring, calibrating, or testing
Measurement system in a specific environment
Electrical signal parameter measurement system
C702S066000
Reexamination Certificate
active
07415372
ABSTRACT:
Noise discrimination in signals from a plurality of sensors is conducted by enhancing the phase difference in the signals such that off-axis pick-up is suppressed while on-axis pick-up is enhanced. Alternatively, attenuation/expansion are applied to the signals in a phase difference dependent manner, consistent with suppression of off-axis pick-up and on-axis enhancement. Nulls between sensitivity lobes are widened, effectively narrowing the sensitivity lobes and improving directionality and noise discrimination.
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Spicer Bruce G.
Taenzer Jon C.
Barlow Jr. John E.
Step Communications Corporation
Thelen Reid Brown Raysman & Steiner LLP
Washburn Douglas N
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