# US 2020/0288243 A1 · Method for generating audio signal using plurality of speakers and microphones and electronic device thereof > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2020/0288243 A1 - Document ID: US20200288243A1 - Status: Published application - Kind: A1 - Application number: 16/648,784 - Filed: 2018-10-17 - Published: 2020-09-10 - Earliest claimed: 2017-10-17 - Assignees: Samsung Electronics Co., Ltd. - Applicants: Samsung Electronics Co., Ltd. - Inventors: Hyunmin CHOI; Gangyoul KIM; Yang-Su KIM; Youngsoo PARK; Nam-Woog LEE; Keun Won JANG - Web page: https://patentgrep.com/patent/US20200288243A1 ## CPC - H04R 3/02: for preventing acoustic reaction {, i.e. acoustic oscillatory feedback (specially adapted for hearing aids H04R25/453)} - H04N 7/142: {Constructional details of the terminal equipment, e.g. arrangements of the camera and the display} - H04N 7/147: {Communication arrangements, e.g. identifying the communication as a video-communication, intermediate storage of the signals (selecting H04Q)} - H04R 1/403: {loud-speakers} - H04R 1/406: {microphones} - H04R 3/12: for distributing signals to two or more loudspeakers {(specially adapted for hearing aids H04R25/407)} - H04N 2007/145: {Handheld terminals} - H04R 3/005: {for combining the signals of two or more microphones (specially adapted for hearing aids H04R25/407)} - H04R 2203/12: Beamforming aspects for stereophonic sound reproduction with loudspeaker arrays - H04R 2430/20: Processing of the output signals of the acoustic transducers of an array for obtaining a desired directivity characteristic (H04R2203/12 takes precedence) - H04R 2499/11: Transducers incorporated or for use in hand-held devices, e.g. mobile phones, PDA's, camera's - 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) - H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION ## Abstract A method for canceling an echo and an electronic device thereof are provided. The electronic device includes a housing, a communication module, a first speaker disposed in a first region of the housing, a second speaker disposed in a second region of the housing, a first microphone disposed adjacent to the first region, a second microphone disposed adjacent to the second region, and a processor. The processor is configured to receive a first audio signal from an external electronic device, and output a first given frequency band, and output a second given frequency band, and provide a first signal by applying a filter capable of passing a band corresponding to the second given frequency band, and provide a second signal by applying a filter capable of passing a band corresponding to the first given frequency band, and provide a second audio signal corresponding to the external audio signal, and transmit the second audio signal to the external electronic device. ## Claims ### Claim 1 An electronic device comprising: a communication module; a first speaker; a second speaker; a first microphone; a second microphone; and a processor, wherein the processor is configured to: output a first output audio signal on a first band, via the first speaker; output a second output audio signal on a second band, via the second speaker; identify a first partial audio signal on the second band within a first input audio signal obtained through the first microphone; identify a second partial audio signal on the first band within a second input audio signal obtained through the second microphone; provide a transmission audio signal, based at least on the first partial audio signal and the second partial audio signal; and transmit information about the transmission audio signal to an external electronic device via the communication module. ### Claim 2 (depends on 1) The electronic device of claim 1, wherein the processor is configured to: receive information about a reception audio signal from the external electronic device via the communication module; identify the first output audio signal on the first band from the reception audio signal; and identify the second output audio signal on the second band from the reception audio signal. ### Claim 3 (depends on 2) The electronic device of claim 2, wherein the processor is configured to: identify the first output audio signal on the first band from the reception audio signal by using a first filter configured to pass a signal on the first band; and identify the second output audio signal on the second band from the reception audio signal by using a second filter configured to pass a signal on the second band. ### Claim 4 (depends on 2) The electronic device of claim 2, wherein the processor is configured to identify the first band and the second band, based at least on turning table information stored in a memory of the electronic device. ### Claim 5 (depends on 2) The electronic device of claim 2, wherein the processor is configured to: identify a band distribution of the reception audio signal; identify a reference frequency for dividing the reception audio signal, based on the identified distribution; and identify the first band and the second band with a criterion of the reference frequency. ### Claim 6 (depends on 1) The electronic device of claim 1, wherein the first input audio signal obtained through the first microphone comprises one or more of a peripheral audio signal caused within an external environment in which the electronic device is located, at least a part of the first output audio signal, or at least a part of the second output audio signal, and the second input audio signal obtained through the second microphone comprises one or more of the peripheral audio signal, at least a part of the first output audio signal, or at least a part of the second output audio signal. ### Claim 7 (depends on 1) The electronic device of claim 1, wherein the first microphone and the second microphone are comprised of a directional microphone, the electronic device further comprises at least one camera module, and the processor is configured to: obtain a user of the electronic device, based on an image acquired through the at least one camera module; and change a directional axis of the first microphone and the second microphone into a direction corresponding to the user. ### Claim 8 (depends on 1) The electronic device of claim 1, wherein the first speaker and the second speaker are comprised of a directional speaker, the electronic device further comprises at least one camera module, and the processor is configured to: obtain a user of the electronic device, based on an image acquired through the at least one camera module; and change a directional axis of the first speaker and the second speaker into a direction corresponding to the user. ### Claim 9 (depends on 1) The electronic device of claim 1, further comprising a housing, wherein the first speaker and the first microphone are located in a first region of the housing, and the second speaker and the second microphone are located in a second region of the housing. ### Claim 10 A method for canceling an echo in an electronic device, the method comprising: outputting a first output audio signal on a first band, via a first speaker; outputting a second output audio signal on a second band, via a second speaker; identifying a first partial audio signal on the second band within a first input audio signal obtained through a first microphone; identifying a second partial audio signal on the first band within a second input audio signal obtained through a second microphone; providing a transmission audio signal, based at least on the first partial audio signal and the second partial audio signal; and transmitting information about the transmission audio signal to an external electronic device. ### Claim 11 (depends on 10) The method of claim 10, further comprising: receiving information about a reception audio signal from the external electronic device; identifying the first output audio signal on the first band from the reception audio signal; and identifying the second output audio signal on the second band from the reception audio signal. ### Claim 12 (depends on 11) The method of claim 11, wherein identifying the second partial audio signal on the first band comprises identifying the first output audio signal on the first band from the reception audio signal by using a first filter configured to pass a signal on the first band, and identifying the first partial audio signal on the second band comprises identifying the second output audio signal on the second band from the reception audio signal by using a second filter configured to pass a signal on the second band. ### Claim 13 (depends on 11) The method of claim 11, further comprising identifying the first band and the second band, based at least on tuning table information stored in a memory of the electronic device. ### Claim 14 (depends on 11) The method of claim 11, further comprising: identifying a band distribution of the reception audio signal; identifying a reference frequency for dividing the reception audio signal, based on the identified distribution; and identifying the first band and the second band with a criterion of the reference frequency. ### Claim 15 (canceled) ### Claim 16 An electronic device comprising: a housing; a communication module; a first speaker disposed in a first region of the housing; a second speaker disposed in a second region of the housing; a first microphone disposed adjacent to the first region; a second microphone disposed adjacent to the second region; and a processor, wherein the processor is configured to: receive a first audio signal from an external electronic device, by using the communication module; output a first given frequency band among a frequency band of the first audio signal by using the first speaker, and output a second given frequency band among the frequency band of the first audio signal by using the second speaker; provide a first signal by applying a filter capable of passing a band corresponding to the second given frequency band to an audio signal external to the electronic device which is acquired using the first microphone, and provide a second signal by applying a filter capable of passing a band corresponding to the first given frequency band to the audio signal external to the electronic device which is acquired using the second microphone; provide a second audio signal corresponding to the external audio signal by using the first signal and the second signal; and transmit the second audio signal to the external electronic device by using the communication module. ### Claim 17 (depends on 16) The electronic device of claim 16, wherein the processor is configured to: identify a first output audio signal on the first given frequency band from the first audio signal by using the first filter configured to pass a signal on the first given frequency band, as at least part of an operation of outputting the first given frequency band; and identify a second output audio signal on the second given frequency band from the first audio signal by using the second filter configured to pass a signal on the second given frequency band, as at least part of an operation of outputting the second given frequency band. ### Claim 18 (depends on 16) The electronic device of claim 16, wherein the processor is configured to identify the first given frequency band and the second given frequency band, based at least on tuning table information stored in a memory of the electronic device. ### Claim 19 (depends on 16) The electronic device of claim 16, wherein the processor is configured to: identify a band distribution of the first audio signal; identify a reference frequency for dividing the first audio signal, based on the identified distribution; and identify the first given frequency band and the second given frequency band with a criterion of the reference frequency. ### Claim 20 (depends on 16) The electronic device of claim 16, wherein the first microphone and the second microphone are comprised of a directional microphone, the electronic device further comprises at least one camera module, and the processor is configured to: obtain a user of the electronic device, based at least on an image acquired through the at least one camera module; and change a directional axis of the first microphone and the second microphone into a direction corresponding to the identified user. ### Claim 21 (depends on 16) The electronic device of claim 16, wherein the first speaker and the second speaker are comprised of a directional speaker, the electronic device further comprises at least one camera module, and the processor is configured to: obtain a user of the electronic device from an image acquired through the at least one camera module; and change a directional axis of the first speaker and the second speaker into a direction corresponding to the identified user.