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US 11,551,658 B2Granted
Sound wave dead spot generation
AssigneeComcast Cable Communications, LLC
InventorAdam Eng
Life of this patent
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Abstract
A speaker system uses destructive wave interference to generate “dead spots” with respect to an audio presentation. The signal for the dead spot generating device can be an inverted signal generated using the audio signal. In one embodiment, the inverted signal is generated using the audio signal, an indication of loudness at one or more active speakers, and a determination of the characteristics of the sound path from the one or more active speakers (including delay and attenuation).
Claims20
A method comprising:
- receiving audio information associated with a content item, wherein the audio information is to be output by at least one audio source;
- buffering the audio information prior to output by the at least one audio source;
- determining, based at least on an indication of loudness at one or more audio sources of a media system, an inverted signal;
- and
- causing output, based on the inverted signal, of a sound wave with the output of the audio information such that the sound wave at least partially cancels sound being output from the at least one audio source at a selected location.
2 more elements
A method comprising:
- receiving audio information associated with a content item, wherein the audio information is to be output by at least one audio source;
- buffering the audio information prior to output by the at least one audio source;
- determining, based on characteristics of a sound path from the at least one audio source to a selected location, an inverted signal;
- and
- causing output, based on the inverted signal, of a sound wave with output of the audio information such that the sound wave at least partially cancels sound being output from the at least one audio source at the selected location.
2 more elements
A device comprising:
- one or more processors and memory, wherein the memory stores computer-executable instructions which, when executed by the processor of the computer, cause the device to:
- receive audio information associated with a content item, wherein the audio information is to be output by at least one audio source;
- buffer the audio information prior to output by the at least one audio source;
- determine, based at least on an indication of loudness at one or more audio sources of a media system, an inverted signal;
- and
- cause output, based on the inverted signal, of a sound wave with output of the audio information such that the sound wave at least partially cancels sound being output from the at least one audio source at a selected location.
3 more elements
Dependencies are inferred from the claim text.