Patent Description:
As technology develops, the use of displays in various forms of electronic devices is increasing in various industries such as automobiles and construction as well as information technology (IT) industries. Not only the form of electronic devices, but also the form of displays are becoming more diverse. Devices that include various forms of displays can provide users with new experiences by displaying content in various ways. In particular, as the usability of portable electronic devices becomes more diverse, the form of displays for displaying content is also becoming more diverse.

It is expected that electronic devices that include displays, as represented by the term "display of things" (DoT), will become more widespread in daily life in the future.

An electronic device that includes an expandable display may change the state of the display from expansion to contraction or from contraction to expansion. The state of the display may be changed by the user's force, and the electronic device may also directly change the state of the display using a motor.

When the electronic device changes the state of the display using a motor while the microphone of the electronic device is being used, sound by the operation of the motor may be introduced into the microphone.

<CIT> discusses a system in a device which includes a microphone, a fan motor and a difference logic. <CIT> discusses an apparatus which comprises a first transducer configured to detect sound and generate a first signal based on the detected sound. <CIT> discusses a digital camera which includes an optical assembly and image sensor. <CIT> discusses a mobile terminal. <CIT> discusses a voice communication terminal. <CIT> discusses an electronic device including a flexible support and a control unit. <CIT> discusses a communication device. <CIT> discusses a conversation voice noise reduction circuit and a conversation terminal.

According to various embodiments of this disclosure, even if an electronic device uses a motor to change a state of a display while a microphone of the electronic device is being used, a sound caused by the operation of the motor may be reduced.

Referring to <FIG>, the electronic device <NUM> in the network environment <NUM> may communicate with an electronic device <NUM> via a first network <NUM> (e.g., a short-range wireless communication network), or at least one of an electronic device <NUM> or a server <NUM> via a second network <NUM> (e.g., a long-range wireless communication network). According to an embodiment, the electronic device <NUM> may include a processor <NUM>, memory <NUM>, an input module <NUM>, a sound output module <NUM>, a display module <NUM>, an audio module <NUM>, a sensor module <NUM>, an interface <NUM>, a connection terminal <NUM>, a haptic module <NUM>, a camera module <NUM>, a power management module <NUM>, a battery <NUM>, a communication module <NUM>, a subscriber identification module(SIM) <NUM>, or an antenna module <NUM>. In some embodiments, at least one of the components (e.g., the connection terminal <NUM>) may be omitted from the electronic device <NUM>, or one or more other components may be added in the electronic device <NUM>. In some embodiments, some of the components (e.g., the sensor module <NUM>, the camera module <NUM>, or the antenna module <NUM>) may be implemented as a single component (e.g., the display module <NUM>).

The non-volatile memory may include at least one of an internal memory <NUM> and an external memory <NUM>.

According to an embodiment, the audio module <NUM> may obtain the sound via the input module <NUM>, or output the sound via the sound output module <NUM> or a headphone of an external electronic device (e.g., the electronic device <NUM>) directly (e.g., wiredly) or wirelessly coupled with the electronic device <NUM>.

The connection terminal <NUM> may include a connector via which the electronic device <NUM> may be physically connected with the external electronic device (e.g., the electronic device <NUM>). According to an embodiment, the connection terminal <NUM> may include, for example, an HDMI connector, a USB connector, an SD card connector, or an audio connector (e.g., a headphone connector).

A corresponding one of these communication modules may communicate with the external electronic device via the first network <NUM> (e.g., a short-range communication network, such as BluetoothTM, wireless-fidelity (Wi-Fi) direct, or infrared data association (IrDA)) or the second network <NUM> (e.g., a long-range communication network, such as a legacy cellular network, a fifth generation (<NUM>) network, a next-generation communication network, the Internet, or a computer network (e.g., LAN or wide area network (WAN)).

The wireless communication module <NUM> may support a <NUM> network, after a fourth generation (<NUM>) network, and next-generation communication technology, e.g., new radio (NR) access technology. The wireless communication module <NUM> may support a high-frequency band (e.g., the millimeter wave (mmWave) band) to achieve, e.g., a high data transmission rate. According to an embodiment, the wireless communication module <NUM> may support a peak data rate (e.g., <NUM> gigabits per second (Gbps) or more) for implementing eMBB, loss coverage (e.g., <NUM> decibels (dB) or less) for implementing mMTC, or U-plane latency (e.g., <NUM> milliseconds (ms) or less for each of downlink (DL) and uplink (UL), or a round trip of <NUM> or less) for implementing URLLC.

According to various embodiments, the antenna module <NUM> may form an mmWave antenna module. According to an embodiment, the mmWave antenna module may include a printed circuit board, an RFIC disposed on a first surface (e.g., the bottom surface) of the printed circuit board, or adjacent to the first surface and capable of supporting a designated high-frequency band (e.g., the mmWave band), and a plurality of antennas (e.g., array antennas) disposed on a second surface (e.g., the top or a side surface) of the printed circuit board, or adjacent to the second surface and capable of transmitting or receiving signals of the designated high-frequency band.

According to an embodiment, all or some of operations to be executed at the electronic device <NUM> may be executed at one or more of the external electronic devices (e.g. electronic devices <NUM> and <NUM> or the server <NUM>).

<FIG> is a simplified structural diagram illustrating an electronic device including an expandable display.

According to the invention, an electronic device <NUM> (e.g., the electronic device <NUM> of <FIG>) includes a display <NUM>, a motor <NUM>, a microphone <NUM> and may include a rail <NUM>, a roller <NUM>, and an instrument support <NUM>. According to various embodiments, the electronic device <NUM> may further include other components or may omit some components. According to various embodiments, the electronic device <NUM> may include a plurality of identical components. For example, a plurality of microphones <NUM> may be included in the electronic device, and the types thereof may be the same or different.

<FIG> illustrates a state in which the display <NUM> (e.g., the display module <NUM> of <FIG>) of the electronic device is reduced, and <FIG> illustrates a state in which the display <NUM> of the electronic device is expanded. The display <NUM> may be expanded or reduced by a user's force. In addition, the electronic device <NUM> may expand or reduce the display <NUM> by driving the motor <NUM>.

According to the invention, the display <NUM> included in the electronic device <NUM> is an expandable/reducible display and may be a rollable display. When the motor <NUM> included in the electronic device <NUM> pushes the display <NUM> using the rail <NUM>, the display <NUM> may be expanded. Conversely, when the motor <NUM> pulls the display <NUM> using the rail <NUM>, the display <NUM> may be reduced. The expandable or reducible display <NUM> may be supported by the instrument support <NUM>. When the display <NUM> is reduced, a reduced portion of the display <NUM> may be rolled up on the roller <NUM> and stored. According to various embodiments, the expandable/reducible display <NUM> may be understood as a display <NUM> whose display area is expandable/reducible. For example, when the motor <NUM> included in the electronic device <NUM> pushes the display <NUM> using the rail <NUM>, the display area of the display <NUM> may be expanded. When the motor <NUM> pulls the display <NUM> using the rail <NUM>, the display area may be reduced.

According to various embodiments, when the display <NUM> is expanded or reduced by the driving of the motor <NUM>, a sound according to the driving of the motor <NUM> may be generated. The sound generated according to the driving of the motor <NUM> may be received via the microphone <NUM>. The frequency of the sound generated by driving the motor <NUM> may be mainly distributed in a specific frequency band. The sound generated according to the driving of the motor <NUM> may be noise. For example, when the user is in a call with the other party using the electronic device <NUM>, the sound generated according to the driving of the motor <NUM> may be received via the microphone <NUM> and transmitted to the other party. When the volume of the sound generated by driving the motor <NUM> is greater than the volume of the user's voice, the other party may not be able to hear what the user is saying. As another example, when the user is recording a video using the electronic device <NUM>, the sound generated by driving the motor <NUM> may be received via the microphone <NUM> and recorded. When the volume of the sound generated by driving the motor <NUM> is smaller than the surrounding ambient noise (e.g. bird chirping or wind noise), this may not be a problem. However, when the volume thereof is greater than the surround ambient noise, the surrounding ambient noise may be masked by the sound generated by driving the motor <NUM>.

Meanwhile, the electronic device <NUM> in which the state of the display can be reduced or expanded may be referred to as a rollable electronic device or a slidable electronic device.

<FIG> illustrates an example of a scenario in which a state of a reducible display is changed.

Referring to <FIG>, a user may receive a call when a display of an electronic device <NUM> (e.g., the electronic device <NUM> of <FIG> or the electronic device <NUM> of <FIG>) is expanded and used. When the display of the electronic device is in an expanded state, the user may manually reduce the display to hold the electronic device <NUM> with one hand. Alternatively, the user may configure the display to be reduced when a specified condition is satisfied. For example, the user may configure the display to be reduced when a call is received (e.g., when the phone rings or vibrates) while the display is expanded. As another example, when the user receives a phone call (e.g., when the user presses a call button) while the display is expanded, the display may be configured to be reduced. The electronic device <NUM> may drive a motor to reduce the size of the display.

According to various embodiments, a sound generated by the motor driven by the electronic device <NUM> to reduce the display may be transmitted to the other party through the microphone <NUM>. When the sound generated by the motor is lower than the user's voice, there is no problem. However, when the sound generated by the motor is louder than the user's voice, the other party may hear the sound generated by the motor together with the user's voice. The other party may not properly hear the user's voice due to the sound generated by the motor.

According to various embodiments, the electronic device <NUM> may need to drive the motor for several seconds to reduce the display. For example, the time required for the electronic device <NUM> to drive the motor may increase as the size of the display increases and the revolution per minute (rpm) of the motor decreases. When the time required for the electronic device <NUM> to drive the motor is long, the sound generated by the motor may be transmitted to the other party through the microphone <NUM>.

According to various embodiments, the motor may vary according to the size and specification of the display, and the size of the electronic device, and thus the volume of the sound according to the driving of the motor may vary according to the type of the motor. When the sound of the motor driven by the electronic device <NUM> is loud, the sound generated by the motor may be transmitted to the other party through the microphone <NUM>.

According to various embodiments, the frequency of the sound according to driving of the motor may vary depending on the type of the motor, pulse width modulation (PWM) of a signal driving the motor, and/or a combination of components (e.g., gear) configured together with the motor. According to various embodiments, the PWM of the signal driving the motor may be adjusted so that the frequency of the sound according to the driving of the motor does not overlap the frequency of a human voice. When the PWM of the signal driving the motor is adjusted, the speed of the motor may be adjusted.

According to various embodiments, the electronic device <NUM> may identify the size of the display and reduce the display only when the size of the display is greater than a threshold value.

Referring to <FIG>, a user may wish to expand a display while recording a video in a state in which the display of an electronic device <NUM> (e.g., the electronic device <NUM> of <FIG> or the electronic device <NUM> of <FIG>) is reduced. For example, the user may wish to expand and view a video being recorded. As another example, the user may wish to expand the display to further perform other tasks while recording a video. The user may configure a hardware key <NUM> (or software key) to expand the display. When the hardware key <NUM> is pressed by the user, the electronic device <NUM> may expand the display using a motor.

According to various embodiments, a sound generated by the motor driven by the electronic device <NUM> to expand the display may be recorded together with a video through the microphone <NUM>. When the sound generated by the motor is lower than a sound to be recorded with the video (e.g. ambient sound), there may not be a problem. However, when the sound generated by the motor is greater than the sound to be recorded with the video, the sound generated by the motor may be recorded along with the video.

According to various embodiments, the electronic device <NUM> may need to drive the motor for several seconds to expand the display. For example, the time required for the electronic device <NUM> to drive the motor may increase as the display size increases and the revolution per minute (rpm) of the motor decreases. When the time for the electronic device <NUM> to drive the motor is long, the sound generated by the motor may be recorded.

According to various embodiments, the motor may vary according to the size and specification of the display, and the size of the electronic device, and thus the volume of a sound according to the driving of the motor may vary according to the type of the motor. When the sound of the motor driven by the electronic device <NUM> is loud, the sound generated by the motor may be recorded.

According to various embodiments, the frequency of the sound according to the driving of the motor may vary depending on the type of the motor, pulse width modulation (PWM) of a signal driving the motor, and/or a combination of components (e.g., gear) configured together with the motor. According to various embodiments, the PWM of the signal driving the motor may be adjusted so that the frequency of the sound according to the driving of the motor does not overlap the frequency of a human voice. When the PWM of the signal driving the motor is adjusted, the speed of the motor may be adjusted.

Although <FIG> illustrates an example of expanding the display, it may also be applied to a case of reducing the display.

<FIG> illustrates an example of a signal received via a microphone as a display state of an electronic device is changed.

<FIG> illustrates the volume of a sound according to the driving of the motor. Referring to <FIG>, it may be confirmed that a sound of a certain level or more is generated while the motor is driving.

<FIG> illustrates the magnitude of each frequency by converting a sound according to the driving of the motor into a frequency. The frequency of the sound generated by driving the motor may be mainly distributed in a specific frequency band. Referring to <FIG>, in operation <NUM>, it may be confirmed that the frequency of the sound according to the driving of the motor is concentrated at <NUM>.

<FIG> illustrates energy for each frequency over time by converting a sound according to the driving of the motor into a frequency. Referring to <FIG>, in operation <NUM>, it may be confirmed that the energy of the sound according to the driving of the motor is concentrated at a frequency of <NUM>.

In <FIG>, the frequency of the sound according to the driving of the motor is <NUM>, but the frequency of the sound according to the driving of the motor may vary depending on the type of motor, PWM of a signal driving the motor, and/or a combination of components (e.g. gears) configured together with the motor. According to various embodiments, the PWM of the signal driving the motor may be adjusted so that the frequency of the sound according to the driving of the motor does not overlap the frequency of a human voice. When the PWM of the signal driving the motor is adjusted, the speed of the motor may be adjusted.

As to the sound according to the driving of the motor, it can be seen from <FIG> that energy (e.g., the volume of the sound) is concentrated at a specific frequency band at a constant level regardless of time.

<FIG> illustrates an example of a signal received while a display state of a counterpart electronic device is changed.

<FIG> illustrates the volume of a sound according to driving of a motor of a counterpart electronic device. Referring to <FIG>, it may be confirmed that a sound of a certain level or higher is generated while the motor of the counterpart electronic device is executed. Although the sound generated while the motor of the counterpart electronic device is executed is smaller than what the user hears directly, the sound may be heard as noise.

<FIG> illustrates the magnitude of each frequency by converting a sound into a frequency according to the driving of the motor of the counterpart electronic device. Referring to <FIG>, in operation <NUM>, it may be confirmed that the frequency of the sound according to the driving of the motor of the counterpart electronic device is concentrated at <NUM> as shown in <FIG>.

In <FIG>, the frequency of the sound according to the driving of the motor is <NUM>, but the frequency of the sound according to the driving of the motor may vary depending on the type of the motor, the PWM of the signal driving the motor and/or a combination of components (e.g., gear) configured together with the motor.

<FIG> illustrates energy of each frequency over time by converting a sound according to the driving of the motor of the counterpart electronic device into a frequency. Referring to <FIG>, in operation <NUM>, it may be confirmed that the energy of the sound according to the driving of the motor of the counterpart electronic device is also concentrated at a frequency of <NUM>. As illustrated in <FIG>, the counterpart electronic device may filter and transmit only signals of a specific frequency band (e.g., audible frequency band).

As in <FIG>, from <FIG>, it may be confirmed that energy (e.g., the volume of the sound) of the sound according to the driving of the motor of the counterpart electronic device is concentrated at a specific frequency band with a constant volume regardless of time.

<FIG> is an example of a flowchart illustrating an electronic device according to various embodiments. According to various embodiments, the example may be an example of receiving a phone call by an electronic device.

In operation <NUM>, a phone call (e.g., a voice call or a video call) may be received by the electronic device.

According to various embodiments, the electronic device may not perform operations <NUM> to <NUM> when a video call is received. According to various embodiments, the user may configure whether to perform operations <NUM> to <NUM> according to the type of the call. For example, the user may configure operations <NUM> to <NUM> to be performed regardless of whether the call is a voice call or a video call. As another example, the user may configure operations <NUM> to <NUM> to be performed only in the case of the voice call.

In operation <NUM>, the electronic device may identify whether the display is in an expanded state. According to various embodiments, the electronic device is a rollable electronic device or a slidable electronic device, and the display may be expanded or reduced. According to various embodiments, the electronic device may change the state of the display by driving a motor.

According to various embodiments, when the display is not in the expanded state, the electronic device may perform operation <NUM>.

In operation <NUM>, when the display is in the expanded state, the electronic device may identify whether the display is configured to be reduced when a call is received. Such configuration may be performed by a user or may be performed when the electronic device is manufactured.

According to various embodiments, the electronic device may identify whether there is a request for a reduction of the display. For example, when the user does not configure the display to be reduced but the display needs to be reduced, the user may request to reduce the display using a software key, a hardware key, or/and a configured gesture.

In operation <NUM>, when the display is configured to be reduced when the phone call is received according to the configuration, the electronic device may drive the motor to reduce the display and apply a first filter to a sound received via the microphone. According to various embodiments, the first filter may be a filter for removing the frequency of the sound according to the driving of the motor.

According to various embodiments of the disclosure, the electronic device may identify whether the frequency of the sound according to driving of the motor overlaps the frequency of a human voice, and adjust the PWM of the signal driving the motor so that the frequency of the sound according to the driving of the motor does not overlap the frequency of a human voice.

According to various embodiments, operation <NUM> may be performed when a specific button (e.g., a "call" button) is pressed by a user.

In operation <NUM>, the electronic device may identify whether the display is reduced.

According to various embodiments, when the display is not yet reduced, the electronic device may continue to perform operation <NUM>. The electronic device may apply a first filter to a sound received via the microphone while reducing the display.

In operation <NUM>, when the display is reduced, the electronic device may apply a second filter to the sound received via the microphone. According to various embodiments, the second filter may be a filter configured suitable for receiving a human voice.

In the above, the state of the display is briefly referred to as the expanded state or the reduced state. However, according to the configuration, when the size (e.g., width, length) of the display exposed to the user is greater than a first threshold value, it may be configured to be an enlarged state, and when the size of the display is smaller than a second threshold value, it may be configured to be a reduced state. According to various embodiments, the first threshold value may be greater than the second threshold value. According to various embodiments, the first threshold value and the second threshold value may also be configured by a user or/and the manufacturer of the electronic device. The user may configure the first threshold value and the second threshold value according to the size of the hand and the purpose of using the phone. For example, when the size of the user's hand is large, the first threshold value and the second threshold may be configured to be large. As another example, when the user frequently receives calls and calls for a long time, the first threshold value and the second threshold value may be configured to be small.

<FIG> is a flowchart illustrating an electronic device according to the invention. According to various embodiments, another example may be an example of executing an application including a function of using a sound received using a microphone in the electronic device.

In operation <NUM>, the electronic device executes an application. According to various embodiments, the electronic device may execute the application by a user. The application includes a function of using a sound received via the microphone. An example may be a video recording application capable of recording the sound received via the microphone as well as the video.

In operation <NUM>, the electronic device identifies whether a change in the state of the display has been requested. The electronic device may identify whether the change in the state of the display has been requested while the application is executed. According to various embodiments, the request for changing the state of the display may be generated by a software key, a hardware key, or/and a configured gesture.

According to various embodiments, when there is no request for changing the state of the display, the electronic device may perform operation <NUM>.

In operation <NUM>, when there is the request for changing the state of the display, the electronic device changes the state of the display by driving the motor. According to various embodiments, the request for changing the state of the display may be a request for expanding the display or reducing the display.

According to various embodiments, the electronic device applies a first filter to the sound received via the microphone. The first filter may be a filter for removing the frequency of the sound according to the driving of the motor.

According to various embodiments, the electronic device may identify whether the frequency of the sound according to the driving of the motor overlaps the frequency of a sound (e.g., bird chirping, music sound, or conversation sound) configured to be suitable for use of the application, and adjust the PWM of a signal driving the motor so that the frequency of the sound according to the driving of the motor does not overlap the frequency of the sound configured to be suitable for use of the application.

In operation <NUM>, the electronic device identifies whether the change in the state of the display is completed.

According to various embodiments, when the change in the display state is not completed, the electronic device may continue to perform operation <NUM>.

In operation <NUM>, when the change in the state of the display is completed, the electronic device applies a second filter to the sound received via the microphone. According to various embodiments, the second filter may be a filter configured to be suitable for use of the application.

In operation <NUM>, the electronic device may identify whether the application is terminated. According to various embodiments, the electronic device may perform operation <NUM> again when the application is not terminated.

In the above, the change in the state of the display is briefly described, but the state of the display may be determined by configuration. For example, when the size (e.g., width and length) of the display exposed to the user is larger than a first threshold value, it may be configured to be an expanded state, and when the size thereof is smaller than a second threshold value, it may be configured to be a reduced state. According to various embodiments, the first threshold value may be greater than the second threshold value. According to various embodiments, the first threshold value and the second threshold value may also be configured by a user or/and the manufacturer of the electronic device.

According to various embodiments, the change in the state of the display may be divided into a plurality of states of the display even in the case of expansion, and may be divided into a plurality of states of the display even in the case of reduction. Depending on the degree of exposure of the display to the user, the state of the display (e.g., expanded <NUM>, expanded <NUM>, expanded <NUM>, reduced <NUM>, reduced <NUM>, and reduced <NUM>) may be configured. According to various embodiments, the user may configure the number of the states of the display differently depending on the size of the display, and may configure the state of the display (e.g., the size of the display) differently even according to the purpose of use.

<FIG> illustrates an example of a signal received via a microphone of an electronic device while a display state of the electronic device according to various embodiments is changed.

<FIG> illustrates the magnitude of a signal received via a microphone of an electronic device while the electronic device drives a motor to change a display state. Referring to <FIG>, it may be confirmed that the signal received via the microphone is received along with the user's voice in addition to the sound according to driving of the motor.

<FIG> illustrates a result of analyzing a frequency component of a signal received via a microphone of an electronic device while driving a motor. Based on a comparison between <FIG> and <FIG>, in operation <NUM>, it may be confirmed that a signal of <NUM>, which is the frequency of the sound according to the driving of the motor, is included in the voice signal.

<FIG> illustrates energy for each frequency over time by converting a signal received via a microphone of an electronic device into a frequency while driving a motor. Based on a comparison between <FIG> and <FIG>, in operation <NUM>, it may be confirmed that the energy of the signal of <NUM>, which is the frequency of the sound according to the driving of the motor, is also included along with the energy of the voice signal.

In <FIG>, the frequency of the sound according to the driving of the motor is <NUM>, but the frequency of the sound according to the driving of the motor may vary according to the type of the motor, the PWM of a signal driving the motor, and/or a combination of components (e.g., gear) configured together with the motor. According to various embodiments, the PWM of the signal driving the motor may be adjusted so that the frequency of the sound according to the driving of the motor does not overlap the frequency of a human voice. When the PWM of the signal driving the motor is adjusted, the speed of the motor may be adjusted.

<FIG> illustrates an example of a signal received by a counterpart electronic device while a display state of the electronic device according to various embodiments is changed.

<FIG> illustrates the magnitude of a signal transmitted from an electronic device to a counterpart electronic device while driving a motor for changing a display state. Referring to <FIG>, it may be confirmed that the driving sound of the motor is filtered out of the signal received by the counterpart electronic device while the motor is driving and only the user's voice is transmitted.

<FIG> illustrates a result of analyzing the frequency component of a signal transmitted from an electronic device to a counterpart electronic device while the motor is driven. Referring to <FIG>, in operation <NUM>, it may be seen that the signal of <NUM>, which is the frequency of the sound according to the driving of the motor, has been filtered.

<FIG> illustrates energy for each frequency over time by converting a signal transmitted from an electronic device to a counterpart electronic device into a frequency while the motor is driven. Referring to <FIG>, in operation <NUM>, it may be confirmed that a signal having a frequency of <NUM> is filtered, and it may be confirmed that the energy of the signal transmitted from the electronic device to the counterpart electronic device during the driving of the motor has been also filtered at the frequency of <NUM>.

From <FIG>, it may be confirmed that, when the electronic device filters and transmits the sound at the specific frequency band according to the driving of the motor, the counterpart electronic device does not receive the sound according to the driving of the motor and receives the user's voice.

In <FIG>, the frequency of the sound according to the driving of the motor is <NUM>, but may vary according to the type of the motor, the PWM of the signal driving the motor, and/or a combination of components (e.g., gear) configured together with the motor. According to various embodiments, the PWM of the signal driving the motor may be adjusted so that the frequency of the sound according to the driving of the motor does not overlap the frequency of a human voice. When the PWM of the signal driving the motor is adjusted, the speed of the motor may be adjusted.

It should be appreciated that various embodiments of the disclosure and the terms used therein are not intended to limit the technological features set forth herein to particular embodiments and include various changes or replacements for a corresponding embodiment.

It is to be understood that if an element (e.g., a first element) is referred to, with or without the term "operatively" or "communicatively", as "coupled with," "coupled to," "connected with," or "connected to" another element (e.g., a second element), it denotes that the element may be coupled with the other element directly (e.g., wiredly), wirelessly, or via a third element.

Claim 1:
An electronic device (<NUM>, <NUM>, <NUM>, <NUM>) comprising:
a motor (<NUM>);
a microphone (<NUM>, <NUM>, <NUM>);
a display (<NUM>) which is capable of changing between an expanded state and a reduced state; and
a processor (<NUM>),
wherein the processor is configured to:
receive a request for changing a state of the display area while an application using a sound received via the microphone is executed;
drive the motor to change the state of the display area in response to the request;
apply a first filter to a sound received via the microphone while changing the state of the display area; and
apply a second filter different from the first filter to a sound received via the microphone in response to identifying that changing in the state of the display area is completed.