Patent ID: 11908441
Assignee: nan
Field: Other consumer goods (Other fields)
Classification: CPC G | IPC G  H

Claim 0:
1. A voice cancellation system, comprising:
a sound muffling chamber configured to cover both a nose and mouth of a user, wherein the sound muffling chamber includes soundproof material;
at least one microphone positioned in the sound muffling chamber, wherein the at least one microphone is configured to detect a voice of the user in the sound muffling chamber and generate a voice signal;
a sound silencing chamber, wherein the sound silencing chamber includes at least one speaker;
at least one sound decelerator fluidly coupled between the sound muffling chamber and the sound silencing chamber, wherein the sound decelerator includes material to increase a traveling time of sound waves from the sound muffling chamber to the sound silencing chamber;
a signal processing system configured to analyze the voice signal and generate a digital voice cancellation signal, wherein the voice cancellation signal includes one or more frequency components having a same frequency and amplitude but a 180 degrees out of phase from one or more frequency components of the voice signal; and
wherein the speaker generates analog sound waves in the sound silencing chamber in response to the digital voice cancellation signal.