# US 11,114,115 B2 · Microphone operations based on voice characteristics > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,114,115 B2 - Document ID: US11114115B2 - Status: Granted - Kind: B2 - Application number: 16/075,612 - Filed: 2017-02-15 - Published: 2021-07-08 - Granted: 2021-09-07 - Earliest claimed: 2017-02-15 - Assignees: Hewlett-Packard Deveopment Company, L.P. - Applicants: Hewlett-Packard Development Company, L.P. - Inventors: Mohit Gupta - Web page: https://patentgrep.com/patent/US11114115B2 ## CPC - G10L 25/78: Detection of presence or absence of voice signals (switching of direction of transmission by voice frequency in two-way loud-speaking telephone systems H04M9/10) - H04R 3/005: {for combining the signals of two or more microphones (specially adapted for hearing aids H04R25/407)} - G10L 2025/783: {based on threshold decision} - H04R 2430/01: Aspects of volume control, not necessarily automatic, in sound systems - G10L: SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING - H04R: LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS (producing sounds with frequency not determined by supply frequency G10K) ## Abstract In an example implementation according to aspects of the present disclosure, a method may include identifying, via a first microphone of a device, when a user registered to use the device is speaking, and comparing a voice characteristic of the user, as detected by the first microphone, against a threshold value. If the voice characteristic exceeds the threshold value, the method may include unmuting a second microphone of the device for the user to participate in a teleconference. ## Claims ### Claim 1 A method comprising: identifying, via a first microphone of a device, when a user registered to use the device is speaking; comparing a voice characteristic of the user, as detected by the first microphone, against a threshold value; if the voice characteristic exceeds the threshold value, unmuting a second microphone of the device for the user to participate in a teleconference; learning, via the first microphone, the voice characteristic of the user during the teleconference; and adjusting the threshold value of the voice characteristic over time based on voice characteristics determined during the teleconference. ### Claim 2 (depends on 1) The method of claim 1, comprising: upon detecting when the voice characteristic is to fall below the threshold value, muting the second microphone, for the user to be muted from participating in the teleconference. ### Claim 3 (depends on 1) The method of claim 1, wherein identifying when the user registered to use the device is speaking comprises matching audio collected by the first microphone with a voice pattern registered to the user. ### Claim 4 (depends on 3) The method of claim 3, comprising: training the device, via the first microphone, to identify a voice associated with the user, wherein the training comprises: learning the voice pattern associated with the user; registering the voice pattern to the user; and learning the voice characteristic of the user, when the user is to speak into the first microphone. ### Claim 5 (depends on 4) The method of claim 4, comprising: uploading the voice pattern and voice characteristic of the user to a cloud service, that is accessible to other devices registered to the user. ### Claim 6 (depends on 1) The method of claim 1, wherein the voice characteristic of the user comprises a sending loudness rating (SLR) of the user or a frequency response of the user, used alone or in combination when comparing against the threshold value. ### Claim 7 A device comprising: a first microphone; a second microphone; a database; and a processor to: learn, via the first microphone, a voice pattern associated with a user; store the voice pattern in the database; identify, via the first microphone, when the user is speaking, wherein identifying comprises matching audio collected by the first microphone with the stored voice pattern; compare a voice characteristic of the user, as detected by the first microphone, against a threshold value; if the voice characteristic exceeds the threshold value, unmute the second microphone for the user to participate in a teleconference; learn, via the first microphone, additional voice characteristic of the user during the teleconference; and adjust the threshold value of the voice characteristic over time based on additional voice characteristics determined during the teleconference. ### Claim 8 (depends on 7) The device of claim 7, wherein, upon detecting when the voice characteristic is to fall below the threshold value, the processor is to mute the second microphone, for the user to be muted from participating in the teleconference. ### Claim 9 (depends on 7) The device of claim 7, wherein the processor to learn the voice pattern comprises learning the voice characteristic, when the user is to speak into the first microphone. ### Claim 10 (depends on 7) The device of claim 7, wherein the voice characteristic of the user comprises a sending loudness rating (SLR) of the user or a frequency response of the user, used alone or in combination when comparing against the threshold value. ### Claim 11 A non-transitory computer-readable storage medium comprising program instructions which, when executed by a processor, to cause the processor to: identify, via a first microphone of a device, when a user registered to use the device is speaking; compare a voice characteristic of the user, as detected by the first microphone, against a threshold value; if the voice characteristic is greater than or equal to the threshold value, unmute a second microphone of the device for the user to participate in a teleconference; if the voice characteristic is less than the threshold value, mute the second microphone, for the user to be muted from participating in the teleconference; learn, via the first microphone, additional voice characteristic of the user during the teleconference; and adjust the threshold value of the voice characteristic over time based on additional voice characteristics determined during the teleconference. ### Claim 12 (depends on 11) The non-transitory computer-readable storage medium of claim 11, wherein the instructions to cause the processor to identify when the user registered to use the device is speaking comprises instructions to cause the processor to match audio collected by the first microphone with a voice pattern registered to the user. ### Claim 13 (depends on 11) The non-transitory computer-readable storage medium of claim 11, wherein the voice characteristic of the user comprises a sending loudness rating (SLR) of the user or a frequency response of the user, used alone or in combination when comparing against the threshold value.