Systems and methods for enhancing performance of audio transducer based on detection of transducer status
First Claim
1. An integrated circuit for implementing at least a portion of a personal audio device, comprising:
- a first output configured to provide a first output signal to a first transducer;
a second output configured to provide a second output signal to a second transducer;
a first transducer status signal input configured to receive a first transducer status input signal indicative of whether a first headphone housing the first transducer is engaged with a first ear of a listener;
a second transducer status signal input configured to receive a second transducer status input signal indicative of whether a second headphone housing the second transducer is engaged with a second ear of the listener; and
a processing circuit comprising;
a first adaptive filter associated with the first transducer;
a second adaptive filter associated with the second transducer; and
a comparison block that compares the response of the first adaptive filter and the response of the second adaptive filter and determines based on the comparison whether a first headphone housing the first transducer is engaged with a first ear of a listener and the second headphone housing the second transducer is engaged with a second ear of the listener.
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Accused Products
Abstract
Based on transducer status input signals indicative of whether headphones housing respective transducers are engaged with ears of a listener, a processing circuit may determine whether the headphones are engaged with respective ears of the listener. Responsive to determining that at least one of the headphones is not engaged with its respective ear, the processing circuit may modify at least one of a first output signal to the first transducer and a second output signal to the second transducer such that at least one of the first output signal and the second output signal is different than such signal would be if the headphones were engaged with their respective ears.
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Citations
28 Claims
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1. An integrated circuit for implementing at least a portion of a personal audio device, comprising:
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a first output configured to provide a first output signal to a first transducer; a second output configured to provide a second output signal to a second transducer; a first transducer status signal input configured to receive a first transducer status input signal indicative of whether a first headphone housing the first transducer is engaged with a first ear of a listener; a second transducer status signal input configured to receive a second transducer status input signal indicative of whether a second headphone housing the second transducer is engaged with a second ear of the listener; and a processing circuit comprising; a first adaptive filter associated with the first transducer; a second adaptive filter associated with the second transducer; and a comparison block that compares the response of the first adaptive filter and the response of the second adaptive filter and determines based on the comparison whether a first headphone housing the first transducer is engaged with a first ear of a listener and the second headphone housing the second transducer is engaged with a second ear of the listener. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 24, 25, 26, 27, 28)
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11. A method, comprising:
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comparing, by a comparison block of a processing circuit, a response of a first adaptive filter associated with a first transducer housed in a first earphone and a response of a second adaptive filter associated with a second transducer housed in a second earphone; and determining, by the processing circuit, based on the comparison whether the first headphone is engaged with a first ear of a listener and the second headphone is engaged with a second ear of the listener. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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Specification