Personal acoustic device position determination
First Claim
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1. A personal acoustic device comprising:
- a first casing structured to be positioned adjacent an ear of a user;
a second casing structured to be positioned away from both ears of the user;
a first movement sensor disposed on a portion of the personal acoustic device that includes the first casing and that is structured to be worn on the user'"'"'s head to enable the first movement sensor to detect movements of the user'"'"'s head at a time when the personal acoustic device is in position on the user'"'"'s head such that the first casing is adjacent an ear of the user;
a second movement sensor disposed on the second casing to provide a reference against which to compare movements detected by the first movement detector; and
a control circuit coupled to the first and second movement sensors, and structured to;
receive a first signal from the first movement sensor indicating a detected movement of the portion;
receive a second signal from the second movement sensor indicating a detected movement of the second casing;
distinguish a differential mode movement between the detected movement of the portion and the detected movement of the second casing from a common mode movement;
analyze a characteristic of the differential mode movement to determine whether the differential mode movement indicates a movement of the user'"'"'s head relative to the reference caused by the user; and
determine that the personal acoustic device is in position on the user'"'"'s head in response to determining that the differential mode movement indicates a movement of the user'"'"'s head relative to the reference caused by the user;
further comprising a connector disposed on the second casing to couple the personal acoustic device to an intercom system of a vehicle such that the reference comprises the vehicle at times when the connector is coupled to the intercom system.
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Abstract
Apparatus and method for determining an operating state of a personal acoustic device by receiving signal from first and second movement sensors indicating movement detected by each, wherein the first movement sensor is disposed on a portion of the personal acoustic device structured to be worn on a user'"'"'s head to enable the first movement sensors to detect movements of a user'"'"'s head when the personal acoustic device is in position on the user'"'"'s head such that a casing of the personal acoustic device is adjacent an ear of the user, and wherein the second movement sensor is disposed on a portion of the personal acoustic device structure to not be worn on a user'"'"'s head.
73 Citations
17 Claims
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1. A personal acoustic device comprising:
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a first casing structured to be positioned adjacent an ear of a user; a second casing structured to be positioned away from both ears of the user; a first movement sensor disposed on a portion of the personal acoustic device that includes the first casing and that is structured to be worn on the user'"'"'s head to enable the first movement sensor to detect movements of the user'"'"'s head at a time when the personal acoustic device is in position on the user'"'"'s head such that the first casing is adjacent an ear of the user; a second movement sensor disposed on the second casing to provide a reference against which to compare movements detected by the first movement detector; and a control circuit coupled to the first and second movement sensors, and structured to; receive a first signal from the first movement sensor indicating a detected movement of the portion; receive a second signal from the second movement sensor indicating a detected movement of the second casing; distinguish a differential mode movement between the detected movement of the portion and the detected movement of the second casing from a common mode movement; analyze a characteristic of the differential mode movement to determine whether the differential mode movement indicates a movement of the user'"'"'s head relative to the reference caused by the user; and determine that the personal acoustic device is in position on the user'"'"'s head in response to determining that the differential mode movement indicates a movement of the user'"'"'s head relative to the reference caused by the user; further comprising a connector disposed on the second casing to couple the personal acoustic device to an intercom system of a vehicle such that the reference comprises the vehicle at times when the connector is coupled to the intercom system. - View Dependent Claims (2, 3, 4)
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5. A personal acoustic device comprising:
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a first casing structured to be positioned adjacent an ear of a user; a second casing structured to be positioned away from both ears of the user; a first movement sensor disposed on a portion of the personal acoustic device that includes the first casing and that is structured to be worn on the user'"'"'s head to enable the first movement sensor to detect movements of the user'"'"'s head at a time when the personal acoustic device is in position on the user'"'"'s head such that the first casing is adjacent an ear of the user; a second movement sensor disposed on the second casing to provide a reference against which to compare movements detected by the first movement detector; and a control circuit coupled to the first and second movement sensors, and structured to; receive a first signal from the first movement sensor indicating a detected movement of the portion; receive a second signal from the second movement sensor indicating a detected movement of the second casing; distinguish a differential mode movement between the detected movement of the portion and the detected movement of the second casing from a common mode movement; analyze a characteristic of the differential mode movement to determine whether the differential mode movement indicates a movement of the user'"'"'s head relative to the reference caused by the user; and determine that the personal acoustic device is in position on the user'"'"'s head in response to determining that the differential mode movement indicates a movement of the user'"'"'s head relative to the reference caused by the user; further comprising; a cable having a first end that is coupled to the first portion and along which the second casing is disposed; and a connector coupled to a second end of the cable to couple the personal acoustic device to an intercom system of a vehicle such that the reference comprises the location of the second casing along the length of the cable at times when the connector is coupled to the intercom system.
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6. A personal acoustic device comprising:
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a first casing structured to be positioned adjacent an ear of a user; a second casing structured to be positioned away from both ears of the user; a first movement sensor disposed on a portion of the personal acoustic device that includes the first casing and that is structured to be worn on the user'"'"'s head to enable the first movement sensor to detect movements of the user'"'"'s head at a time when the personal acoustic device is in position on the user'"'"'s head such that the first casing is adjacent an ear of the user; a second movement sensor disposed on the second casing to provide a reference against which to compare movements detected by the first movement detector; and a control circuit coupled to the first and second movement sensors, and structured to; receive a first signal from the first movement sensor indicating a detected movement of the portion; receive a second signal from the second movement sensor indicating a detected movement of the second casing; distinguish a differential mode movement between the detected movement of the portion and the detected movement of the second casing from a common mode movement; analyze a characteristic of the differential mode movement to determine whether the differential mode movement indicates a movement of the user'"'"'s head relative to the reference caused by the user; and determine that the personal acoustic device is in position on the user'"'"'s head in response to determining that the differential mode movement indicates a movement of the user'"'"'s head relative to the reference caused by the user; further comprising a connector disposed on the second casing to couple the personal acoustic device to an intercom system of a vehicle, wherein the control circuit is further structured to; receive an indication of whether the connector is coupled to an intercom system of a vehicle; and alter a manner in which the control circuit determines that the personal acoustic device is in position on the user'"'"'s head in response to the indication of whether the connector is coupled to an intercom system. - View Dependent Claims (7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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Specification