| FIGURE 1 |
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| Fig 1—Two microphones placed equidistant from a user's mouth on the user's chest produce in-phase signals to this noise-canceling circuit's multiplier, IC2, separating the users voice and out-of-phase signals from background noise. |
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| FIGURE 1 |
|
| Fig 1—Two microphones placed equidistant from a user's mouth on the user's chest produce in-phase signals to this noise-canceling circuit's multiplier, IC2, separating the users voice and out-of-phase signals from background noise. |
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