Electronic device for identifying electronic device to perform speech recognition and method of operating same

A method performed by an electronic device, the method comprising:

• establishing, by the electronic device, communication connections with a plurality of external electronic devices for providing an intelligent speech service;
• receiving, by the electronic device, at least one piece of information related to a user utterance including a specific word for wake-up from at least some of the plurality of external electronic devices;
• identifying, by the electronic device, a device to be woken up among the at least some of the plurality of external electronic devices, based on at least one piece of first information received from a first external electronic device of the plurality of external electronic devices during a time interval for identifying the device to be woken up;
• identifying, by the electronic device, a first time interval longer than the time interval, based on a reception time point of at least one piece of second information received from a second external electronic device of the plurality of external electronic devices when the at least one piece of second information is received after the time interval;
• identifying, by the electronic device, a second time interval shorter than the time interval, based on a reception time point of third information received received from a third external electronic device of the plurality of external electronic devices last among the at least one piece of first information received during the time interval;
• and
• changing, by the electronic device, the time interval based on the first time interval and the second time interval and further based on a quality of a communication state between the first external electronic device of the plurality of external electronic devices and the electronic device and a quality of a communication state between the second external electronic device of the plurality of external electronic devices and the electronic device.

One or more non-transitory computer-readable storage media storing one or more computer programs including computer-executable instructions that, when executed by one or more processors of an electronic device individually or collectively, cause the electronic device to:

• establish, by the electronic device, communication connections with a plurality of external electronic devices for providing an intelligent speech service,
• receive, by the electronic device, at least one piece of information related to a user utterance including a specific word for wake-up from at least some of the plurality of external electronic devices,
• identify, by the electronic device, a device to be woken up among the at least some of the plurality of external electronic devices, based on at least one piece of first information received from a first external electronic device of the plurality of external electronic devices during a time interval for identifying the device to be woken up,
• identify, by the electronic device, a first time interval longer than the time interval, based on a reception time point of at least one piece of second information received from a second external electronic device of the plurality of external electronic devices when the at least one piece of second information is received after the time interval,
• identify, by the electronic device, a second time interval shorter than the time interval, based on a reception time point of third information received from a third external electronic device of the plurality of external electronic devices last among the at least one piece of first information received during the time interval, and
• change, by the electronic device, the time interval based on the first time interval and the second time interval and further based on a quality of a communication state between the first external electronic device of the plurality of external electronic devices and the electronic device and a quality of a communication state between the second external electronic device of the plurality of external electronic devices and the electronic device.