LOW POWER ACOUSTIC APPARATUS AND METHOD OF OPERATION
First Claim
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1. A method of operating an acoustic system, the method comprising:
- detecting an ultrasonic sound signal at a microphone;
pattern matching the received ultrasonic sound signal to determine when the received ultrasonic sound signal is a desired ultrasonic sound signal;
when the pattern matching indicates the received ultrasonic sound signal is the desired ultrasonic sound signal, transmitting a signal to at least one electronic component;
when the pattern matching indicates the received ultrasonic sound signal is not the desired ultrasonic sound signal, operating the microphone in a low power state of operation.
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Abstract
In accordance with one aspect of the disclosure, a method of operating an acoustic system including detecting an ultrasonic sound signal and pattern matching the received ultrasonic sound signal to determine when the received ultrasonic sound signal is a desired ultrasonic sound signal. The method includes sending a signal to at least one electronic component when the received ultrasonic sound signal is the desired ultrasonic sound signal. The method includes operating the microphone in a lower power state when the received ultrasonic sound signal is not the desired ultrasonic sound signal.
15 Citations
34 Claims
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1. A method of operating an acoustic system, the method comprising:
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detecting an ultrasonic sound signal at a microphone; pattern matching the received ultrasonic sound signal to determine when the received ultrasonic sound signal is a desired ultrasonic sound signal; when the pattern matching indicates the received ultrasonic sound signal is the desired ultrasonic sound signal, transmitting a signal to at least one electronic component; when the pattern matching indicates the received ultrasonic sound signal is not the desired ultrasonic sound signal, operating the microphone in a low power state of operation. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An apparatus, the apparatus comprising:
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a detector configured to detect an ultrasonic sound signal at a microphone; a pattern matching module coupled to the detector, the pattern matching module configured to pattern match the received ultrasonic sound signal to determine when the received ultrasonic sound signal is a desired ultrasonic sound signal and when the pattern matching module indicates the received sound signal is the desired ultrasonic sound signal, transmitting a signal to at least one electronic component, and when the pattern matching module indicates the received ultrasonic sound signal is not the desired ultrasonic sound signal, operate the microphone in a low power state of operation. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A method of operating an acoustic system, the method comprising:
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operating a microphone in a first state of operation such that in the first state of operation the microphone receives an ultrasonic sound signal and determines whether the received signal is a desired ultrasonic sound signal; such that when the microphone determines that the received ultrasonic sound signal is the desired ultrasonic sound signal, the microphone enters a second state of operation, the second state of operation consuming more power than the first state of operation, and such that in the second state of operation the microphone transmits a signal to at least one electronic component; and when the microphone determines that the received ultrasonic sound signal is not a desired ultrasonic sound signal, the microphone returns to the first state of operation. - View Dependent Claims (22, 23, 24, 25, 26, 27)
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28. A method of operating an acoustic system, the method comprising:
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detecting an ultrasonic sound signal at a microphone; upon detecting the ultrasonic sound signal at the microphone, transmitting a first wake-up signal to a processor; receiving the first wake-up signal at the processor and responsively waking up the processor; at the processor pattern matching the received ultrasonic sound signal to determine when the received ultrasonic sound signal is a desired ultrasonic sound signal; when the pattern matching indicates the received ultrasonic sound signal is the desired ultrasonic sound signal, sending a signal from the processor to at least one electronic component; when the pattern matching indicates the received ultrasonic sound signal is not the desired ultrasonic sound signal, operating the microphone in a low power mode of operation. - View Dependent Claims (29, 30, 31, 32, 33, 34)
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Specification