KR20090034224A - Sound outputting apparatus and portable electronic device for listening outside sound and method thereof - Google Patents

Abstract

A sound outputting apparatus listening to an external sound, a portable electronic device and a method for listening to the external sound are provided to prevent an accident by transmitting the external sound to a user while listening to an audio sound through an external sound sensor. An external sound sensor(10) senses an input external sound generated from the outside. A controller(20) receives the input external sound from the external sound sensor. The controller receives the input reproducing sound generated in a sound generating device, generates an output external sound and an output reproducing sound, and calculates the output ratio. An output unit(30) outputs the output external sound and the output reproducing sound generated by the controller according to the output ratio. If the size of the input external sound sensed by the external sound sensor is above the predetermined value, the controller generates the output external sound and the output reproducing sound.

Description

Sound outputting apparatus and portable electronic device for listening outside sound and method

The present invention relates to a portable electronic device, and more particularly, to a portable electronic device capable of listening to external sound and a method thereof.

Recent developments in technology have made it possible to play multimedia contents on portable electronic devices such as portable multimedia players (PMPs), personal digital assistants (PDAs), MP3 players, and mobile phones. In addition, high-quality audio can be reproduced using the portable electronic device, and recently, streaming data can be reproduced through on-demand multimedia playback. Accordingly, a technology for listening to audio using the portable electronic device has been developed, and a wireless interface using Bluetooth or the like has been provided.

In addition, a user who wants to play audio through the portable electronic device generally uses a stereo headset or earphones. At this time, by blocking external noise by the stereo headset or earphone, it is possible to listen to the audio of higher quality through the portable electronic device.

However, the prior art as described above has the following problems.

In other words, when listening to audio through the stereo headset or earphones, there is a problem in that the ability to cope with the surrounding situation is reduced and the risk of an accident is increased.

In the prior art, when listening to audio through the stereo headset or earphone, there is a problem in that the playback of audio is stopped in order to have a conversation because the voices of the neighbors cannot be heard.

Therefore, the present invention has been made to solve the above-mentioned conventional problems, an object of the present invention is a portable electronic device that can listen to external sound generated even when listening to audio through a stereo headset or earphones and A sound source output device and an external sound listening method using the same are provided.

According to a feature of the present invention for achieving the above object, the present invention includes an external sound detection unit for detecting an external input sound generated; A controller configured to receive the input external sound from the external sound detection unit, receive the input reproduced sound generated by the sound generating device, generate an output external sound and an output reproduced sound, and calculate an output ratio thereof; And an output unit for outputting the output external sound and the output reproduction sound generated by the control unit according to the output ratio.

In this case, the controller may generate the output external sound and the output reproduction sound when the magnitude of the input external sound detected by the external sound detection unit is equal to or greater than a preset value.

The controller may calculate the output ratio using the magnitudes of the input external sound and the input reproduction sound sensed by the external sound detection unit.

The controller may calculate the output ratio according to a ratio of the magnitude of the input external sound to the magnitude of the input reproduction sound.

In this case, the controller may generate the output external sound and the output reproduction sound such that the magnitudes of the output external sound and the output reproduction sound are the same as those of the input reproduction sound.

The sound source output device may further include a display unit for displaying the detection of the input external sound, and the control unit may transmit a detection signal of the input external sound to the display unit.

In addition, the display unit may display the detection of the input external sound received from the controller through vibration.

The display unit may display the detection of the input external sound received from the controller through a sound.

The sound source output device may further include an input unit configured to receive whether the output external sound is output and whether the output ratio is corrected. The control unit outputs the output external sound and the output when the user input is received from the input unit. The output ratio may be modified when a reproduction sound is generated and a user input for correcting the output ratio is received.

The external sound detection unit may include a condenser microphone.

On the other hand, the present invention is an external sound detection unit for detecting an external input sound generated from the outside, and receives the input external sound from the external sound detection unit, receives the input reproduction sound generated from the sound generating unit output external sound and output reproduction sound And an output unit for outputting the output external sound and the output reproduction sound generated by the control unit.

In this case, the controller may generate the output external sound and the output reproduction sound when the magnitude of the input external sound detected by the external sound detection unit is equal to or greater than a preset value.

The controller may calculate the output ratio using the magnitudes of the input external sound and the input reproduction sound sensed by the external sound detection unit.

The controller may calculate the output ratio according to a ratio of the magnitude of the input external sound to the magnitude of the input reproduction sound.

In this case, the controller may generate the output external sound and the output reproduction sound such that the output external sound and the output reproduction sound have the same size as the input reproduction sound.

The portable electronic device may further include a display unit for displaying the detection of the input external sound, and the controller may transmit a detection signal of the input external sound to the display unit.

In this case, the display unit may display the sensing of the input external sound received from the controller through vibration.

The display unit may display the detection of the input external sound received from the controller through a sound.

The portable electronic device may further include an input unit configured to receive whether the output external sound is output and whether the output ratio is corrected, and wherein the control unit receives the output external sound when the user input is received from the input unit. An output reproduction sound may be generated and the output ratio may be modified when a user input for correcting the output ratio is received.

In this case, the external sound detection unit may be configured to include a condenser microphone.

On the other hand, the present invention comprises the steps of (a) detecting the external input sound generated externally, (b) generating an output external sound and an output reproduction sound using the input external sound and the input reproduction sound, and (c) the Calculating an output ratio of the output external sound and the output reproduction sound, and (d) outputting the output external sound and the output reproduction sound according to the output ratio.

In this case, step (b) may be performed to generate the output external sound and the output reproduction sound when the sensed magnitude of the input external sound is equal to or greater than a preset value.

In addition, step (c) may be performed to calculate the output ratio by using the sensed magnitude of the input external sound and the input reproduction sound.

In addition, step (c) may be performed to calculate the output ratio according to the ratio of the magnitude of the input external sound to the magnitude of the input reproduction sound.

In this case, step (b) may be performed to generate the output external sound and the output reproduction sound such that the magnitudes of the output external sound and the output reproduction sound are the same as those of the input reproduction sound.

The step (b) may include (b1) displaying the detection of the input external sound, and (b2) generating an output external sound and an output reproduction sound using the input external sound and the input reproduction sound. .

In addition, the step (b1) may be displayed to the user through the vibration of the detection of the input external sound.

In operation (b1), the detection of the input external sound may be displayed to the user through sound.

In this case, the step (b) includes (b1) indicating the detection of the input external sound, (b2) receiving an input of whether the output external sound is output, and (b3) using the input external sound and the input reproduction sound. And generating an output external sound and an output reproduction sound.

The method for listening to the external sound of the portable electronic device may include (e) receiving a command for correcting the output ratio after step (d), and (f) outputting the external sound and output according to the corrected output ratio. The method may further include outputting a reproduction sound, and (g) receiving an end command of the interactive mode.

In addition, in step (a1), the external sound generated from the outside may be detected using a condenser microphone.

As described in detail above, according to the portable electronic device and the method capable of listening to the external sound according to the present invention, the following effects can be expected.

That is, even when listening to audio through a stereo headset or earphones it is possible to listen to the external sound generated from the outside, there is an advantage that can prevent the occurrence of an accident due to lack of ability to cope with the surrounding situation.

In addition, according to the present invention, it is possible to listen to the external sound generated from the outside, there is an advantage that you can talk to the adjacent person while listening to audio through a stereo headset or earphone.

In addition, by adjusting the ratio of the external sound generated from the outside to the reproduction sound generated by the portable electronic device, the user can output the external sound of the desired size, and thus there is an advantage that can perform a smoother conversation.

Hereinafter, with reference to the accompanying drawings, preferred embodiments of the sound source output device and portable electronic device capable of listening to the external sound according to the present invention as described above and a method thereof will be described in detail.

1 is a block diagram illustrating a portable electronic device constituting a specific embodiment of the present invention, FIG. 2 is a flowchart illustrating a method of listening to external sounds of the portable electronic device according to a specific embodiment of the present invention in detail. 4 is a flowchart illustrating a method for listening to external sounds of a portable electronic device according to another embodiment of the present invention, and FIG. 4 is a flowchart illustrating a method for listening to external sounds of a portable electronic device according to another embodiment of the present invention.

As shown in FIG. 1, a portable electronic device according to a specific embodiment of the present invention includes an external sound sensing unit 10. The external sound detection unit 10 detects an external input sound generated externally.

In this case, the input external sound refers to an external sound generated outside of the portable electronic device and sensed by the external sound detection unit 10 and transmitted to the controller 20 to be described later in order to provide a user with an external sound. do.

The external sound sensing unit 10 may include a condenser microphone 15. The condenser microphone 15 detects the input external sound, converts it into an electrical signal, and transmits it to the control unit 20 to be described later.

On the other hand, the portable electronic device according to a specific embodiment of the present invention includes a control unit 20. The control unit 20 receives the input external sound from the external sound detection unit 10. And receives the input reproduction sound generated from the sound generating unit (not shown). In addition, the controller 20 generates an output external sound and an output reproduction sound by using the input external sound and the input reproduction sound. The output ratio of the output external sound and the output reproduction sound is calculated.

In this case, the sound generator generates an analog audio signal that can be listened to by a user using audio information recorded in various forms. For example, an analog audio signal may be generated by decoding digital audio information compressed by a specific encoding method.

In addition, the input reproduction sound is an audio signal generated by the sound generating unit, and an audio signal that can be heard through a stereo headset or earphone of the portable electronic device in a state before detecting the external input sound generated externally. Means.

In addition, the output external sound refers to an audio signal to be provided to the user through processing such that the input external sound sensed by the external sound detection unit 10 is transmitted to the control unit 20 and amplified.

In addition, the output reproduction sound refers to an audio signal to be provided to the user through a process such that the input reproduction sound generated by the sound generation unit is transmitted to the control unit 20 and amplified.

In this case, the control unit 20 generates the output external sound and the output reproduction sound when the magnitude of the input external sound detected by the external sound detection unit 10 is equal to or larger than a preset value. If the input external sound detected by the external sound detection unit 10 corresponds to a noise of a small size that the user does not need to listen to, the detected external sound may not be processed to generate an output external sound. This is to avoid.

For example, even if the external sound sensor 10 detects a small amount of noise generated while the user is listening to audio through the stereo headset or earphone, the output external sound is less than a preset value. May not generate Therefore, the preset value, which is a standard for generating the output external sound, should be set to the size of the input external sound that the user needs to listen to in the form of the output external sound.

The controller 20 calculates the output ratio by using the magnitudes of the input external sound and the input reproduction sound sensed by the external sound detection unit 10. In this case, the controller 20 calculates the output ratio according to the ratio of the magnitude of the input external sound to the magnitude of the input reproduction sound.

In more detail, the controller 20 calculates the ratio of the magnitude of the output external sound and the output reproduction sound to be equal to the ratio of the magnitude of the input external sound and the input reproduction sound. This is to determine the size of the output external sound according to the surrounding situation where the user listens to the audio. For example, when the user listens to the audio in a quiet space, the volume of the input playback sound is set to be small, and the input external sound generated during the conversation with the user is expected to be small. On the other hand, considering the case where the user listens to the audio in a noisy space, the size of the input reproduction sound is set to be large, and the size of the input external sound generated during the conversation with the user is also expected to be large. Therefore, by using the ratio of the volume of the input external sound and the input playback sound, the size of the output external sound can be adaptively determined according to the noise level of the surrounding situation.

In addition, the controller 20 generates the output external sound and the output reproduction sound such that the magnitudes of the output external sound and the output reproduction sound are the same as those of the input reproduction sound. The input reproducing sound is a volume set by the user before the input external sound is detected, and the loudness of the sum of the sizes of the output external sound and the output reproducing sound generated by the controller 20 is also increased. This is to provide an audio signal of a size appropriate to a user by controlling the same as the input playback sound.

On the other hand, the portable electronic device according to a specific embodiment of the present invention is configured to include an output unit (30). The output unit 30 outputs an output external sound and an output reproduction sound generated by the control unit 20 according to the calculated output ratio. In this case, the output unit 30 may output the output external sound and the output reproduction sound through the stereo headset or earphone.

Meanwhile, the portable electronic device according to another embodiment of the present invention may further include a display unit 40. The display unit 40 displays the detection of the input external sound. In this case, the control unit 20 receives the input external sound from the external sound detection unit 10 and transmits a detection signal of the input external sound to the display unit 40.

In this case, the display unit 40 may display the detection of the input external sound received from the control unit 20 in the form of vibration or sound. That is, when the input external sound is detected, the output external sound and the output reproduction sound may be output through the output unit 30 and the detection of the input external sound may be displayed to the user through the display unit 40. have. For example, if the external sound is detected while the user is listening to the audio through the stereo headset or earphone, the display unit 40 may transmit the detection of the external sound to the user by vibration. In addition, the display unit 40 may transmit a sense of the input external sound to the user by sound.

 In addition, since the display unit 40 displays the detection of the external input sound to the user in the form of vibration or sound, the user can take an immediate response according to the detection of the external external sound. For example, if a user detects an external sound according to a dangerous situation while listening to audio through the stereo headset or earphone, the user can not only listen to the output external sound but also receive an indication of vibration or sound. You can respond more promptly.

On the other hand, the portable electronic device according to another embodiment of the present invention may be configured to further include an input unit (50). The input unit 50 receives whether the output external sound is output. That is, when the input external sound is detected, the user may input the start and end of the output external sound output through the input unit 50.

In addition, the input unit 50 receives whether to correct the output ratio calculated by the control unit 20. That is, in order to modify the output ratio of the output external sound and the output reproduction sound, the user may input a command for correcting the output ratio through the input unit 50.

For example, when the user wants not to be disturbed by external noise while listening to audio, only the output reproduction sound may be output without outputting the output external sound by a user input through the input unit 50. The output external sound may be terminated through the input unit 50 while the output external sound and the output reproduction sound are controlled.

In addition, if it is determined that the size of the output external sound is smaller than the output reproduction sound in a state in which the user controls the output external sound and the output reproduction sound, the output external sound and the output external sound by the user input through the input unit 50. The output ratio of the output reproduction sound may be modified to increase the size of the output external sound and to reduce the size of the output reproduction sound.

The controller 20 generates the output external sound and the output reproduction sound when the user input is received from the input unit 50. Therefore, when the input external sound is detected by the external sound detection unit 10, the display unit 40 displays the detection of the input external sound to the user, and the user outputs the output external sound through the input unit 50. The output external sound may be controlled to be output or not output as a user input for commanding whether to output the external sound.

In addition, the controller 20 corrects the output ratio when a user input for correcting the output ratio is received from the input unit 50. Therefore, when the size of the output external sound is larger or smaller than the output external sound, the user inputs the output ratio of the output external sound and the output reproduction sound as a user input for instructing the modification of the output ratio through the input unit 50. Can be modified.

For example, when a user is trying to talk while a user is listening to audio through the stereo headset or earphone, the user detects the occurrence of external sound in the form of vibration or sound, and listens to the external sound. You can continue the conversation through user input. Therefore, the output command of the output external sound through the input unit 50 may correspond to the setting of a conversation mode that allows a conversation while listening to audio through the stereo headset or earphone. The user may listen to the external sound having a desired size by modifying the output ratio of the output external sound and the output reproduction sound output during the conversation mode through the input unit 50.

In the above, the configuration of the portable electronic device that is provided with the external sound sensing unit 10 and outputs the output external sound according to the input external sound has been described.

On the other hand, the sound source output device according to another embodiment of the present invention is configured to include the external sound detection unit 10, the control unit 20, the output unit 30, similar to the portable electronic device described above. In this case, the sound source output device includes a stereo headset or earphone connected to the portable electronic device by wire or wirelessly to output the input reproduction sound, the output external sound, and the output reproduction sound to the user.

At this time, the control unit 20 calculates the output ratio of the input reproduction sound and the input external sound generated from a sound generating device (not shown) included in the portable electronic device, and generates the output external sound and output reproduction sound.

In this case, the external sound detection unit 10, the control unit 20, and the output unit 30 constituting the sound source output device according to another embodiment of the present invention are the external sound detection unit 10 constituting the portable electronic device described above. The controller 20 has the same configuration as the output unit 30 and performs the same function.

On the other hand, the sound source output device according to another embodiment of the present invention may be configured to further include a display unit (40). In this case, the display unit 40 has the same configuration as the display unit 40 constituting the portable electronic device and performs the same function. Therefore, the sound source output device outputs the output external sound and the output reproduction sound when the input external sound is detected, and also displays the detection of the input external sound through the display unit 40. In this case, the display unit 40 may display the detection of the input external sound in the form of vibration or sound.

On the other hand, the sound source output device according to another embodiment of the present invention may be configured to further include an input unit (50). At this time, the input unit 50 has the same configuration as the input unit 50 constituting the portable electronic device described above and performs the same function.

Accordingly, when the sound source output device detects the input external sound, the display unit 40 displays the detection of the input external sound, and when there is a user input for the output of the output external sound, the output external sound and the output reproduction sound. It generates and outputs through the output unit 30. If there is a user input for modifying the output ratio of the output external sound and the output reproduction sound, the output ratio is modified and output through the output unit 30 according to the correction command.

For example, the user may set a conversation mode for a conversation while listening to audio through a stereo headset or earphone by a user input for outputting the output external sound, and by a user input for stopping output of the output external sound. The conversation mode may be terminated. In addition, an external sound having a desired size may be listened to by a user input for modifying a volume of an output external sound for the output reproduction sound in the conversation mode.

Hereinafter, with reference to the accompanying drawings a preferred embodiment of the external sound listening method of the portable electronic device according to the present invention as described above will be described in detail.

2 is a flowchart illustrating a method for listening to external sound of a portable electronic device according to a specific embodiment of the present invention in detail.

As shown in FIG. 2, the method for listening to external sound of a portable electronic device according to a specific embodiment of the present invention starts with the step of detecting an external externally generated sound (S100).

In this case, the input external sound refers to an external sound generated outside the portable electronic device and sensed by the external sound detection unit 10 and transmitted to provide a user to listen to the external sound. The external input sound generated from the outside is sensed through the condenser microphone 15 included in the external sound detection unit 10.

Next, it is determined whether the sensed magnitude of the input external sound is greater than or equal to a preset value (S110). In this case, when the detected magnitude of the input external sound is greater than or equal to a preset value, step 120 is performed. On the other hand, if the detected magnitude of the input external sound is less than a preset value, step 100 is performed.

This is to prevent the output external sound from being processed by processing the detected input external sound when the detected input external sound corresponds to a noise of a small size that the user does not need to listen to.

For example, when a user hears audio through the stereo headset or earphone, the external noise may be detected when the external sound is less than a preset value even if the external sound is detected. It may not produce sound. Therefore, the preset value, which is a standard for generating the output external sound, should be set to the size of the input external sound that the user needs to listen to in the form of the output external sound.

Subsequently, as a result of the determination in step 110, when the detected magnitude of the input external sound is equal to or greater than a preset value, an output external sound and an output reproduction sound are generated using the input external sound and the input reproduction sound (S120).

In this case, the input reproduction sound is an audio signal generated by the sound generator, and receives an audio signal that can be heard through a stereo headset or earphone of the portable electronic device in a state before detecting the external input sound generated externally. it means.

The sound generator generates an analog audio signal that can be listened to by a user using audio information recorded in various forms. For example, an analog audio signal may be generated by decoding digital audio information compressed by a specific encoding method.

The output external sound refers to an audio signal to be provided to the user through processing such that the sensed input external sound is amplified according to the calculated output ratio.

In addition, the output reproduction sound refers to an audio signal to be provided to the user through processing such that the input reproduction sound generated by the sound generation unit is amplified according to the calculated output ratio.

In this case, the output external sound and the output reproduction sound are generated such that the sum of the output external sound and the output reproduction sound is equal to the size of the input reproduction sound. This is because the input reproduction sound is controlled by the user before the input external sound is detected, and thus the volume of the sum of the output external sound and the output reproduction sound is controlled to be equal to the input reproduction sound. This is to provide an appropriately sized audio signal.

Next, an output ratio of the output external sound and the output reproduction sound is calculated (S130). In this case, the output ratio is calculated using the sensed input external sound and the input reproduction sound generated by the sound generator. Specifically, the output ratio is calculated equal to the ratio of the magnitude of the input external sound to the magnitude of the input reproduction sound.

This is to determine the size of the output external sound according to the surrounding situation where the user listens to the audio. For example, when the user listens to the audio in a quiet space, the volume of the input playback sound is set to be small, and it is expected that the volume of the input external sound generated during a conversation with the user is also small. On the other hand, considering the case where the user listens to the audio in a noisy space, the size of the input reproduction sound is set to be large, and the size of the input external sound generated during the conversation with the user is also expected to be large. Therefore, by using the ratio of the volume of the input external sound and the input playback sound, the size of the output external sound can be adaptively determined according to the noise level of the surrounding situation.

Finally, the output external sound and the output reproduction sound are output according to the calculated output ratio (S140). In this case, the output external sound and the output reproduction sound may be output through the stereo headset or earphone. Accordingly, the user may listen to external sounds generated outside while listening to audio through the stereo headset or earphone together with playback sounds through the stereo headset or earphone.

3 is a flowchart illustrating a method for listening to external sound of a portable electronic device according to another embodiment of the present invention in detail.

As shown in FIG. 3, the method for listening to external sound of a portable electronic device according to a specific embodiment of the present invention starts from detecting an external external sound generated in operation S200.

Next, it is determined whether the detected magnitude of the input external sound is greater than or equal to a preset value (S210). In this case, if the detected magnitude of the input external sound is greater than or equal to a preset value, step 220 is performed. On the other hand, if the detected magnitude of the input external sound is less than a preset value, step 200 is performed.

This is to prevent the output external sound from being processed by processing the detected input external sound when the detected input external sound corresponds to a noise of a small size that the user does not need to listen to.

Subsequently, as a result of the determination in step 210, when the detected magnitude of the input external sound is equal to or greater than a preset value, the detection of the input external sound is displayed (S220). In this case, the detection of the input external sound may be displayed in the form of vibration or sound. For example, when the input external sound is detected while the user listens to the audio through the stereo headset or earphone, the input external sound may be transmitted to the user by vibration or sound.

At this time, by displaying the detection of the input external sound to the user in the form of vibration or sound, the user can take an immediate response according to the detection of the input external sound. For example, if a user detects an external sound according to a dangerous situation while listening to audio through the stereo headset or earphone, the user can not only listen to the output external sound but also receive an indication of vibration or sound. You can respond more promptly.

Next, an output external sound and an output reproduction sound are generated using the input external sound and the input reproduction sound (S230).

In this case, the output external sound and the output reproduction sound are generated such that the sum of the output external sound and the output reproduction sound is equal to the size of the input reproduction sound. This is because the input reproduction sound is controlled by the user before the input external sound is detected, and thus the volume of the sum of the output external sound and the output reproduction sound is controlled to be equal to the input reproduction sound. This is to provide an appropriately sized audio signal.

Next, an output ratio of the output external sound and the output reproduction sound is calculated (S240). In this case, the output ratio is calculated equal to the ratio of the magnitude of the input external sound to the magnitude of the input reproduction sound. This is to determine the size of the output external sound according to the surrounding situation where the user listens to the audio.

Finally, the output external sound and the output reproduction sound are output according to the calculated output ratio (S250). In this case, the output external sound and the output reproduction sound may be output through the stereo headset or earphone. Accordingly, the user may listen to external sounds generated outside while listening to audio through the stereo headset or earphone together with playback sounds through the stereo headset or earphone.

4 is a flowchart illustrating a method of listening to external sounds of a portable electronic device according to another embodiment of the present invention in detail.

As shown in FIG. 4, the method for listening to the external sound of the portable electronic device according to another embodiment of the present invention starts with the step of detecting an external externally generated sound (S300).

Next, it is determined whether the sensed magnitude of the input external sound is greater than or equal to a preset value (S310). In this case, if the detected magnitude of the input external sound is greater than or equal to a preset value, step 320 is performed. On the other hand, if the detected magnitude of the input external sound is less than a preset value, step 300 is performed.

This is to prevent the output external sound from being processed by processing the detected input external sound when the detected input external sound corresponds to a noise of a small size that the user does not need to listen to.

Subsequently, the detection of the input external sound is displayed (S320). In this case, the detection of the input external sound may be displayed in the form of vibration or sound. For example, when the input external sound is detected while the user listens to the audio through the stereo headset or earphone, the input external sound may be transmitted to the user by vibration or sound.

Next, it is determined whether there is a user input for commanding the output of the output external sound (S330). In this case, if there is a user input for outputting the output external sound, step 340 is performed. On the other hand, if there is no user input for commanding the output external sound, step 300 is performed.

For example, if a user is trying to talk while a user is listening to audio through the stereo headset or earphone, the user detects the occurrence of external sound in the form of vibration or sound, and inputs a user input for listening to the external sound. You can continue the conversation. In this case, the output command of the output external sound may correspond to a setting of a conversation mode that allows a conversation while listening to audio through the stereo headset or ear phone.

On the other hand, when the user wants not to be disturbed by external noise while listening to audio, the user may control to output only the output reproduction sound without outputting the output external sound by a user input.

Subsequently, as a result of the determination in step 330, when there is a user input for outputting the output external sound, an output external sound and an output reproduction sound are generated using the input external sound and the input reproduction sound (S340).

In this case, the output external sound and the output reproduction sound are generated such that the sum of the output external sound and the output reproduction sound is equal to the size of the input reproduction sound. This is because the input reproduction sound is controlled by the user before the input external sound is detected, and thus the volume of the sum of the output external sound and the output reproduction sound is controlled to be equal to the input reproduction sound. This is to provide an appropriately sized audio signal.

Next, an output ratio of the output external sound and the output reproduction sound is calculated (S350). In this case, the output ratio is calculated equal to the ratio of the magnitude of the input external sound to the magnitude of the input reproduction sound. This is to determine the size of the output external sound according to the surrounding situation where the user listens to the audio.

Subsequently, the output external sound and the output reproduction sound are output according to the calculated output ratio (S360). In this case, the output external sound and the output reproduction sound may be output through the stereo headset or earphone. Accordingly, the user may listen to external sounds generated outside while listening to audio through the stereo headset or earphone together with playback sounds through the stereo headset or earphone.

Next, it is determined whether there is a user input for correcting the output ratio (S370). In this case, when there is a user input for correcting the output ratio, step 380 is performed. On the other hand, if there is no user input for the correction of the output ratio, step 390 is performed.

This is to allow the user to listen to the external sound having a desired size by modifying the output ratio by a user input for modifying the output ratio when it is determined that the magnitude of the output external sound is smaller or larger than the output reproduction sound. For sake.

Subsequently, when it is determined in step 370, if there is a user input for correcting the output ratio, the output external sound and the output reproduction sound are output according to the output ratio of the user input (S380). On the other hand, if it is determined in step 370 that there is no user input for the correction of the output ratio, step 390 is performed.

Next, it is determined whether there is an end input of the conversation mode (S390). At this time, when there is an end input of the conversation mode, the method for listening to the external sound of the portable electronic device is terminated. For example, when the conversation is terminated by listening to an external sound and the conversation ends, and the user wants to listen to the audio output from the portable electronic device, the user stops outputting the output external sound by the end input of the conversation mode. Only the playback sound may be output.

On the other hand, if there is no end input in the conversation mode, step 370 is performed. That is, the output external sound and the output reproduction sound may be output and controlled according to a user input for correcting the output ratio.

The rights of the present invention are not limited to the embodiments described above, but are defined by the claims, and those skilled in the art can make various modifications and adaptations within the scope of the claims. It is self-evident.

1 is a block diagram showing a portable electronic device constituting a specific embodiment of the present invention.

Figure 2 is a flow chart illustrating in detail the method for listening to the external sound of a portable electronic device according to a specific embodiment of the present invention.

Figure 3 is a flow chart illustrating in detail the method for listening to external sound of a portable electronic device according to another embodiment of the present invention.

Figure 4 is a flow chart illustrating in detail the method for listening to the external sound of a portable electronic device according to another embodiment of the present invention.

Explanation of symbols on the main parts of the drawings

10: external sound detection unit 15: condenser microphone

20: control unit 30: output unit

40: display unit 50: input unit

Claims (31)

An external sound detection unit for detecting an external input sound generated externally; A controller configured to receive the input external sound from the external sound detection unit, receive the input reproduced sound generated by the sound generating device, generate an output external sound and an output reproduced sound, and calculate an output ratio thereof; And And an output unit for outputting the output external sound and the output reproduction sound generated by the control unit according to the output ratio. The method of claim 1, The control unit, And the output external sound and the output reproduction sound when the magnitude of the input external sound detected by the external sound detection unit is equal to or larger than a preset value. The method of claim 2, The control unit, And the output ratio is calculated by using the magnitudes of the input external sound and the input reproduction sound sensed by the external sound detection unit. The method of claim 3, wherein The control unit, And the output ratio is calculated according to a ratio of the magnitude of the input external sound to the magnitude of the input reproduction sound. The method of claim 4, wherein The control unit, And outputting the output external sound and the output reproduction sound such that the magnitudes of the output external sound and the output reproduction sound are the same as the input reproduction sound. The method according to any one of claims 1 to 5, The sound source output device, And further comprising a display unit for indicating the detection of the input external sound: The control unit, The sound source output device, characterized in that for transmitting the detection signal of the input external sound to the display unit. The method of claim 6, The display unit, A sound source output device, characterized in that for displaying the detection of the external sound received from the control unit via vibration. The method of claim 6, The display unit, A sound source output device, characterized in that for displaying the detection of the external sound received from the control unit via a sound. The method of claim 6, The sound source output device, And further comprising an input unit configured to receive whether the output external sound is output and whether the output ratio is corrected. The control unit, And outputting the output external sound and the output reproduction sound when the user input is received from the input unit, and correcting the output ratio when receiving the user input for modification of the output ratio. The method of claim 9, The external sound detection unit, Sound source output device comprising a condenser microphone. An external sound detection unit for detecting an external input sound generated externally; A controller configured to receive the input external sound from the external sound detection unit, receive an input reproduced sound generated by the sound generator, and generate an output external sound and an output reproduced sound and calculate an output ratio thereof; And And an output unit configured to output an output external sound and an output reproduction sound generated by the control unit. The method of claim 11, The control unit, And the output external sound and the output reproduction sound when the magnitude of the input external sound detected by the external sound detection unit is equal to or larger than a preset value. The method of claim 12, The control unit, And the output ratio is calculated using the magnitude of the input external sound and the input reproduction sound sensed by the external sound detection unit. The method of claim 13, The control unit, And the output ratio is calculated according to a ratio of the magnitude of the input external sound to the magnitude of the input reproduction sound. The method of claim 14, The control unit, And the output external sound and the output reproduction sound such that the output external sound and the output reproduction sound have the same magnitude as the input reproduction sound. The method according to any one of claims 11 to 15, The portable electronic device, And further comprising a display unit for indicating the detection of the input external sound: The control unit, And a detection signal of the input external sound is transmitted to the display unit. The method of claim 16, The display unit, Portable electronic device characterized in that the detection of the input external sound received from the control unit via vibration. The method of claim 16, The display unit, Portable electronic device, characterized in that for displaying the detection of the external sound received from the control unit through the sound. The method of claim 16, The portable electronic device, And further comprising an input unit configured to receive whether the output external sound is output and whether the output ratio is corrected. The control unit, When the user input is received from the input unit, the output external sound and the output reproducing sound, and when receiving the user input for the correction of the output ratio of the portable electronic device characterized in that for correcting the output ratio. The method of claim 19, The external sound detection unit, Portable electronic device comprising a condenser microphone. (a) detecting an externally generated input external sound; (b) generating an output external sound and an output reproduction sound using the input external sound and the input reproduction sound; (c) calculating an output ratio of the output external sound and the output reproduction sound; And and (d) outputting the output external sound and the output reproduction sound according to the output ratio. The method of claim 21, In step (b), And generating the output external sound and the output reproduction sound when the sensed input external sound has a magnitude greater than or equal to a preset value. The method of claim 22, Step (c) is, And calculating the output ratio by using the sensed magnitudes of the input external sound and the input reproduction sound. The method of claim 23, Step (c) is, And calculating the output ratio according to a ratio of the magnitude of the input external sound to the magnitude of the input reproduction sound. The method of claim 24, In step (b), And generating the output external sound and the output reproduction sound such that the magnitudes of the output external sound and the output reproduction sound are equal to those of the input reproduction sound. The method according to any one of claims 21 to 25, In step (b), (b1) displaying a detection of the input external sound; and (b2) generating an output external sound and an output reproduction sound using the input external sound and the input reproduction sound. The method of claim 26, Step (b1), The method for listening to the external sound of a portable electronic device, characterized in that the detection of the input external sound is displayed to the user through vibration. The method of claim 26, Step (b1), The method for listening to external sound of a portable electronic device, characterized in that the detection of the input external sound to the user through the sound. The method according to any one of claims 21 to 25, In step (b), (b1) displaying a detection of the input external sound; (b2) receiving an output of output external sound; And and (b3) generating an output external sound and an output reproduction sound using the input external sound and the input reproduction sound. The method of claim 29, The external sound listening method of the portable electronic device, (e) receiving a command to modify the output ratio; (f) outputting the output external sound and the output reproduction sound according to the modified output ratio; And (g) receiving an external command for ending the conversation mode. The method of claim 30, Step (a1), A method for listening to external sound of a portable electronic device, characterized in that for detecting the external sound generated from the outside using a condenser microphone.

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