ENCASEMENT FOR ABATING ENVIRONMENTAL NOISE, HAND-FREE COMMUNICATION AND NON-INVASIVE MONITORING AND RECORDING
An encasement such as an electronic pillow including a pillow unit encasing at least one error microphone and at least one loudspeaker in electrical connection with a controller unit, the pillow unit also including a power source, and a reference sensing unit including at least one reference microphone in electrical connection with the controller unit, the controller unit including an algorithm for controlling interactions between the error microphone, loudspeaker, and reference microphone. A method of abating unwanted noise, by detecting an unwanted noise with a reference microphone, analyzing the unwanted noise, producing an anti-noise corresponding to the unwanted noise in a pillow, and abating the unwanted noise.
1 . An encasement, configured to accommodate a human head, comprising:
an encasement area comprising a plurality of error microphones and a plurality of speakers;
a reference sensing unit comprising at least one reference microphone; and
a controller unit, operatively coupled to the plurality of error microphones, the plurality of speakers, and the reference sensing unit, wherein the controller unit processes signals received from the plurality of error microphones and reference sensing unit to reduce noise in an area between each of the error microphones using said speakers,
wherein the controller unit is configured to reduce noise utilizing a multiple-channel feed-forward active noise control and is further configured to processes signals received from at least one of the error microphones to perform acoustic echo cancellation.
2 . The encasement of claim 1 , wherein the controller unit further comprises a digital signal processing unit operatively coupled to a phone interface, wherein said acoustic echo cancellation is performed on signals received in the phone interface.
3 . The encasement of claim 2 , wherein the controller unit is configured to integrate the active noise control and the acoustic echo cancellation to be performed simultaneously.
4 . The encasement of claim 1 , wherein the error microphones are embedded in a middle third of said encasement area.
5 . The encasement of claim 1 , wherein the controller unit comprises input channels equal to the number of error microphones and reference microphones, and output channels equal to the number of speakers.
6 . The encasement of claim 1 , wherein the controller unit is configured to produce a sound signal to the speakers, wherein the sound comprises at least one of audio sound and anti-noise.
7 . The encasement of claim 1 , wherein the encasement comprises one of a pillow and a headrest.
8 . A method for reducing noise via an apparatus comprising an enclosure having an enclosure area with an enclosure unit operatively coupled to a reference sensing unit and a controller unit, the method comprising the steps of:
receiving signals via a plurality of error microphones encased in the enclosure unit, wherein the error microphones are spaced a first predetermined distance from one another;
receiving at least one signal from at least one reference sensing microphone in the reference sensing unit; and
processing signals received from of the error microphones and reference sensing microphone in the controller unit to reduce noise in an area between the error microphones using a plurality of speakers encased in the pillow unit, where each of the speakers are spaced a second predetermined distance from each of the respective error microphones, wherein noise is reduced in the controller unit utilizing a multiple-channel feed-forward active noise control, and wherein the controller unit processes signals received from at least one of the error microphones to perform acoustic echo cancellation.
9 . The method of claim 8 , wherein the controller unit comprises a digital signal processing unit operatively coupled to a phone interface, wherein said acoustic echo cancellation is performed on signals received in the phone interface.
10 . The method of claim 9 , wherein the controller unit integrates the active noise control and the acoustic echo cancellation to be performed simultaneously.
11 . The method of claim 8 , wherein the error microphones are embedded in a middle third of said enclosure area.
12 . The method of claim 8 , wherein the controller unit comprises input channels equal to the number of error microphones and reference microphones, and output channels equal to the number of speakers.
13 . The method of claim 8 , wherein the controller unit produces a sound signal to the speakers, wherein the sound comprises at least one of audio sound and anti-noise.
14 . The method of claim 8 , wherein the enclosure comprises one of a pillow and a headrest.
15 . An encasement, configured to accommodate a human head, comprising:
an encasement area comprising a plurality of error microphones and a plurality of speakers, wherein the error microphones are spaced a first predetermined distance from one another, and the speakers are each spaced a second predetermined distance from each respective error microphone;
a reference sensing unit comprising at least one reference microphone;
a controller unit, operatively coupled to the plurality of error microphones, the plurality of speakers, and the reference sensing unit, wherein the controller unit processes signals received from the plurality of error microphones and reference sensing unit using one or more of multiple-channel feed-forward active noise control and acoustic echo cancellation to reduce noise in the space between each of the error microphones using said speakers, wherein the controller unit is configured to activate at least one of the active noise control and the acoustic echo cancellation depending on a mode of operation.
16 . The encasement of claim 15 , wherein the controller unit further comprises a digital signal processing unit operatively coupled to a phone interface, wherein said acoustic echo cancellation is performed on signals received in the phone interface.
17 . The encasement of claim 15 , wherein the controller unit comprises input channels equal to the number of error microphones and reference microphones, and output channels equal to the number of speakers.
18 . The encasement of claim 15 , wherein one mode of operation comprises noise abatement, and a second mode comprises hands-free communication.
19 . The encasement of claim 18 , wherein that active noise control is activated in a noise abatement mode of operation and acoustic echo cancellation is activated in a hands-free communication mode of operation.
20 . The encasement of claim 18 , wherein the encasement comprises one of a pillow and a headrest.