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US 6,665,350 B1Granted
Method and system for improved analog signal detection
AssigneeLegerity, Inc.
InventorJohn G. Bartkowiak
Life of this patent
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Abstract
A method and system for improved detection of analog signals, where the analog signals may be composed of one or more analog frequencies. In the method and system, an analog signal is received. A stream of data samples is created from the analog signal. Based on the stream of data samples, a confidence factor regarding the presence of the one or more analog signals is created. The confidence factor is created based upon a confidence factor calculated for each of the one or more analog frequency signals. The confidence factor calculated for each of the one or more analog frequency signals is calculated utilizing incremental energies associated with each of the one or more analog frequency signals.
Claims29
A method for frequency detection, said method comprising:
- receiving an analog signal;
- creating a stream of data samples from the analog signal;
- and
- calculating a confidence factor regarding a presence of one or more analog frequencies within the analog signal on the basis of the stream of data samples utilizing at least two calculated incremental frame energies, wherein said calculating a confidence factor comprises calculating a base frequency confidence factor regarding a presence of a base frequency selected from the one or more analog frequencies, and wherein said calculating a base frequency confidence factor comprises calculating the base frequency confidence factor utilizing a count of monotonic increases in the at least two calculated incremental frame energies.
1 more element
A method for frequency detection, said method comprising:
- receiving an analog signal;
- creating a stream of data samples from the analog signal;
- and
- calculating a confidence factor regarding a presence of one or more analog frequencies within the analog signal on the basis of the stream of data samples utilizing at least two calculated incremental frame energies;
- wherein said calculating the frequency confidence factor utilizing at least two calculated incremental frame energies further comprises:
- calculating one or more differences between the at least two calculated incremental frame energies;
- and
- calculating the frequency confidence factor utilizing the one or more differences between the at least two calculated incremental frame energies.
5 more elements
A method for frequency detection, said method comprising:
- receiving an analog signal;
- creating a stream of data samples from the analog signal;
- and
- calculating a confidence factor regarding a presence of one or more analog frequencies within the analog signal on the basis of the stream of data samples utilizing at least two calculated incremental frame energies;
- wherein
- said calculating a confidence factor comprises calculating a second frequency confidence factor regarding a presence of a second frequency selected from the one or more analog frequencies;
- said calculating a second frequency confidence factor comprises calculating the second frequency confidence factor utilizing at least two calculated incremental second-frequency sub-frame energies;
- and
- said calculating the second frequency confidence factor utilizing at least two calculated incremental second-frequency sub-frame energies further comprises:
- calculating one or more differences between the at least two calculated incremental second-frequency sub-frame energies;
- and
- calculating the second-frequency confidence factor utilizing the one or more differences between the at least two calculated incremental second-frequency sub-frame energies.
9 more elements
A method for frequency detection, said method comprising:
- receiving an analog signal;
- creating a stream of data samples from the analog signal;
- calculating a confidence factor regarding a presence of one or more analog frequencies within the analog signal on the basis of the stream of data samples utilizing at least two calculated incremental frame energies;
- and
- calculating a confidence factor based upon the calculated confidence factor regarding the presence of one or more analog frequencies within the analog signal, wherein at least one of the steps of calculating a confidence factor includes at least one step from the group consisting of:
- utilizing a count of monotonic increases in the at least two calculated incremental frame energies;
- and
- utilizing one or more differences between the at least two calculated incremental frame energies.
5 more elements
A system for frequency detection, said system comprising:
- means for receiving an analog signal;
- means for creating a stream of data samples from the analog signal;
- and
- means for calculating a confidence factor regarding a presence of one or more analog frequencies within the analog signal on the basis of the stream of data samples utilizing at least two calculated incremental frame energies;
- wherein said means for calculating a confidence factor regarding a presence of one or more analog frequencies within the analog signal on the basis of the stream of data samples further comprises means for calculating a base frequency confidence factor regarding the presence of a base frequency selected from the one or more analog frequencies;
- wherein said means for calculating a base frequency confidence factor regarding the presence of a base frequency selected from the one or more analog frequencies further comprises:
- means for calculating the base frequency confidence factor utilizing depending upon whether the at least two calculated incremental frame energies are monotonically increasing over a set of the at least two calculated incremental frame energies.
4 more elements
A system for frequency detection, said system comprising:
- means for receiving an analog signal;
- means for creating a stream of data samples from the analog signal;
- and
- means for calculating a confidence factor regarding a presence of one or more analog frequencies within the analog signal on the basis of the stream of data samples utilizing at least two calculated incremental frame energies;
- wherein
- said means for calculating the frequency confidence factor utilizing at least two calculated incremental frame energies further comprises:
- means for calculating one or more differences between the at least two calculated incremental frame energies;
- and
- means for calculating the frequency confidence factor utilizing the one or more differences between the at least two calculated incremental frame energies.
6 more elements
A system for frequency detection, said system comprising:
- means for receiving an analog signal;
- means for creating a stream of data samples from the analog signal;
- and
- means for calculating a confidence factor regarding a presence of one or more analog frequencies within the analog signal on the basis of the stream of data samples utilizing at least two calculated incremental frame energies;
- wherein
- said means for calculating the confidence factor comprises means for calculating a second frequency confidence factor regarding a presence of a second frequency selected from the one or more analog frequencies;
- said means for calculating the second frequency confidence factor comprises means for calculating the second frequency confidence factor utilizing at least two calculated incremental second-frequency sub-frame energies;
- and
- said means for calculating the second frequency confidence factor utilizing at least two calculated incremental second-frequency sub-frame energies further comprises:
- means for calculating one or more differences between the at least two calculated incremental second-frequency sub-frame energies;
- and
- means for calculating the second-frequency confidence factor utilizing the one or more differences between the at least two calculated incremental second-frequency sub-frame energies.
9 more elements
A system for frequency detection, comprising:
- means for receiving an analog signal;
- means for creating a stream of data samples from the analog signal;
- means for calculating a confidence factor regarding a presence of one or more analog frequencies within the analog signal on the basis of the stream of data samples utilizing at least two calculated incremental frame energies;
- and
- means for calculating a confidence factor based upon the calculated confidence factor regarding the presence of one or more analog frequencies within the analog signal, wherein at least one of the means for calculating a confidence factor includes at least one of the group consisting of:
- means for utilizing a count of monotonic increases in the at least two calculated incremental frame energies;
- and
- means for utilizing one or more differences between the at least two calculated incremental frame energies.
5 more elements
Dependencies are inferred from the claim text.