Patents - Sales & Licensing

Noise Cancelling

AT&T patents in this area describe Ambient Noise Cancellation For Voice Communication Device.  The ambient noise picked up by the microphone is attenuated before being passed to the transmitter, thus reducing or entirely cancelling background or ambient noise from the device.

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Innovating Facts

AT&T's legacy of invention is reflected in 9 Nobel Prizes, recognizing foundational breakthroughs that continue to shape the future of technology.

150 Years of invention has been part of AT&Ts story supported by thousands of patents and ongoing innovation that continues to shape what’s next

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