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US 2008/0290875 A1Published application
Seismic activity detector
OwnerLarry A. Parkinventor
Life of this patent
Estimating the term…
Abstract
A system for detecting precursor seismic electromagnetic waveforms.
Claims15
A detector of an electromagnetic seismic precursor comprising:
- (a) an antenna to receive electromagnetic radiation;
- (b) a transducer selectively conducting in response to receipt of said electromagnetic radiation by said antenna;
- and
- (c) a transistor including a collector-base junction at an interface of a base and a collector and a base-emitter junction at an interface of said base and an emitter, said base and said collector conductively connected to a first of an electrical potential such that said collector-base junction is reverse biased and said emitter conductively connected to said transducer such that when said transducer conducts said emitter is connected to a second source of electrical potential such that said base-emitter junction is forward biased initiating an initial current in said base-emitter junction, said initial current reversing said bias of said base-emitter junction and enabling a resonating current in said base-emitter junction at a voltage substantially less than a junction forward voltage of said base-emitter junction, said reverse bias being of insufficient magnitude to cause an avalanche breakdown of said base-emitter junction.
1 more element
A method of detecting an electromagnetic seismic precursor, said method comprising the steps of:
- (a) providing an antenna to receive electromagnetic radiation of said seismic precursor;
- (b) connecting a transducer to said antenna, said transducer selectively conducting in response to interaction of said antenna and said electromagnetic radiation;
- (c) connecting a base and a collector of a transistor to at least one electrical potential such that a collector-base junction at an interface of said base and said collector is reverse biased;
- and
- (d) connecting an emitter of said transistor to said transducer such that when said transducer conducts said emitter is connected to another electrical potential and a base-emitter junction at an interface of said base and said emitter is forward biased initiating an initial current in said base-emitter junction, said initial current reversing said bias of said base-emitter junction and enabling a resonating current in said base-emitter junction at a voltage substantially less than a junction forward voltage of said base-emitter junction, said reverse bias being of insufficient magnitude to cause an avalanche breakdown of said base-emitter junction.
2 more elements
Dependencies are inferred from the claim text.