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US 10,382,143 B1Granted
Method for increasing tone marker signal detection reliability, and system therefor
AssigneeAC Global Risk, Inc.
InventorLeonid Gorsha
Life of this patent
Estimating the term…
Abstract
A method of and system for increasing the reliability of signal detection, that includes receiving at least one audio recording comprising at least one sound marking signal and performing waveform analysis on the sound marking signal to determine whether the sound marking signal is fragmented into a plurality of signal portions. If the sound marking signal is fragmented into a plurality of signal portions, the method further includes confirming that portions of the fragmented sound marking signal possess characteristics of a sinusoidal signal.
Claims18
A method of increasing the reliability of signal detection, the method comprising:
- receiving at least one audio recording comprising at least one sound marking signal;
- and
- performing waveform analysis on the sound marking signal to determine whether the sound marking signal is fragmented into a plurality of signal portions;
- and
- if the sound marking signal is fragmented into a plurality of signal portions:
- confirming that portions of the fragmented sound marking signal comprise characteristics of a sinusoidal signal having a period, wherein confirming that portions of the fragmented sound marking signal comprise characteristics of a sinusoidal signal comprises:
- scanning, using a scanning window, the audio recording comprising the sound marking signal;
- ensuring identifying at least one signal maximum, at least one signal minimum, and at least one zero crossing magnitude between a discrete signal maximum and a discrete signal minimum;
- and
- if the signal maximum occurs prior to the signal minimum:
- confirming that signal magnitudes increase from the signal minimum to the signal maximum;
- confirming that a mathematical difference between adjacent magnitudes on the waveform between the signal minimum and the zero crossing magnitude are positive and increasing;
- and
- confirming that a mathematical difference between adjacent magnitudes on the waveform between the zero crossing magnitude and the signal maximum are positive and decreasing;
- and
- if the signal minimum occurs prior to the signal maximum:
- confirming that signal magnitudes decrease from the signal maximum to the signal minimum;
- confirming that a mathematical difference between adjacent magnitudes on the waveform between the signal maximum and the zero crossing magnitude are negative and increasing;
- and
- confirming that a mathematical difference between adjacent magnitudes on the waveform between the zero crossing magnitude and the signal minimum are negative and decreasing.
17 more elements
A system for increasing the reliability of signal detection, the system comprising:
- a non-transitory machine-readable medium for storing information;
- a user interface;
- and
- at least one signal processing device that is adapted for executing instructions stored in the non-transitory machine-readable medium and that is configured to:
- receive at least one audio recording comprising at least one sound marking signal;
- and
- perform waveform analysis on the sound marking signal to determine whether the sound marking signal is fragmented into a plurality of signal portions;
- and
- if the sound marking signal is fragmented into a plurality of signal portions:
- confirm that portions of the fragmented sound marking signal comprise characteristics of a sinusoidal signal having a period, wherein to confirm that portions of the fragmented sound marking signal comprise characteristics of a sinusoidal signal, the signal processing device is further configured to:
- scan, using a scanning window, the audio recording comprising the sound marking signal;
- identify at least one signal maximum, at least one signal minimum, and at least one zero crossing magnitude between a discrete signal maximum and a discrete signal minimum;
- and
- if the signal maximum occurs prior to the signal minimum:
- confirm that signal magnitudes increase from the signal minimum to the signal maximum;
- confirm that a mathematical difference between adjacent magnitudes on the waveform between the signal minimum and the zero crossing magnitude are positive and increasing;
- and
- confirm that a mathematical difference between adjacent magnitudes on the waveform between the zero crossing magnitude and the signal maximum are positive and decreasing;
- and
- if the signal minimum occurs prior to the signal maximum:
- confirm that signal magnitudes decrease from the signal maximum to the signal minimum;
- confirm that a mathematical difference between adjacent magnitudes on the waveform between the signal maximum and the zero crossing magnitude are negative and increasing;
- and
- confirm that a mathematical difference between adjacent magnitudes on the waveform between the zero crossing magnitude and the signal minimum are negative and decreasing.
21 more elements
A non-transitory machine-readable medium for storing information, the medium comprising computer-executable adapted to:
- receive at least one audio recording comprising at least one sound marking signal;
- and
- perform waveform analysis on the sound marking signal to determine whether the sound marking signal is fragmented into a plurality of signal portions;
- and
- if the sound marking signal is fragmented into a plurality of signal portions:
- confirm that portions of the fragmented sound marking signal comprise characteristics of a sinusoidal signal having a period, wherein to confirm that portions of the fragmented sound marking signal comprise characteristics of a sinusoidal signal, the computer-executable instructions are further adapted to:
- scan, using a scanning window, the audio recording comprising the sound marking signal;
- identify at least one signal maximum, at least one signal minimum, and at least one zero crossing magnitude between a discrete signal maximum and a discrete signal minimum;
- and
- if the signal maximum occurs prior to the signal minimum:
- confirm that signal magnitudes increase from the signal minimum to the signal maximum;
- confirm that a mathematical difference between adjacent magnitudes on the waveform between the signal minimum and the zero crossing magnitude are positive and increasing;
- and
- confirm that a mathematical difference between adjacent magnitudes on the waveform between the zero crossing magnitude and the signal maximum are positive and decreasing;
- and
- if the signal minimum occurs prior to the signal maximum:
- confirm that signal magnitudes decrease from the signal maximum to the signal minimum;
- confirm that a mathematical difference between adjacent magnitudes on the waveform between the signal maximum and the zero crossing magnitude are negative and increasing;
- and
- confirm that a mathematical difference between adjacent magnitudes on the waveform between the zero crossing magnitude and the signal minimum are negative and decreasing.
17 more elements
Dependencies are inferred from the claim text.