Portable device and control method therefor

A voice recognition system comprising:

• a first device detecting a voice input and controlling whether to execute an operation by generating a triggering signal;
• and
• a second device receiving the triggering signal from the first device and executing the operation based on the received triggering signal,
• wherein:
• the first device transmits a first triggering signal to the second device when the first device detects a first voice input including a first part for executing a first operation and a second part for indicating a first execution level for the first operation, and the second device executes the first operation at the first execution level based on the first triggering signal received from the first device;
• the first device displays a first interface for indicating execution level information on the first operation when the first device detects a second voice input including only the first part for executing the first operation and when a display of the first device is in an activated state, the first device detects a control input for selecting a second execution level from the first interface and transmits a second triggering signal to the second device based on the detected control input, and the second device executes the first operation at the second execution level based on the second triggering signal received from the first device;
• and
• the first device transmits a third triggering signal to the second device when the display is in a deactivated state, and the second device executes the first operation at a default level based on the third triggering signal received from the first device.

A control method for a portable device, comprising:

• receiving a first voice input via an audio sensing unit of the portable device, the first voice input including a first part for executing a first operation and a second part for indicating a first execution level for the first operation;
• executing the first operation at the first execution level based on the first voice input;
• receiving a second voice input via the audio sensing unit, the second voice input including only the first part for executing the first operation;
• displaying a first interface for indicating execution level information on the first operation in response to the second voice input when a display of the portable device is in an activated state;
• detecting a control input for selecting a second execution level from the first interface;
• executing the first operation at the second execution level based on the detected control input;
• and
• executing the first operation at a default level in response to the second voice input when the display is in a deactivated state.