Abstract: An audio accessory and an audio output method are provided. The audio accessory includes a connector configured to be connected to an external device, an audio output unit configured to output a sound, and a switching unit configured to select a signal path according to whether the sound output through the audio output unit is in a balanced mode or an unbalanced mode.

Abstract: A mobile terminal is provided that does not have a separate dedicated microphone hole. The mobile terminal preferably includes an ear jack assembly and a microphone unit. The ear jack assembly includes an ear jack plug insert hole. The microphone unit is disposed in a neighborhood of the ear jack assembly. The microphone unit is realized to use a microphone hole for receiving an external note also as an ear jack plug insert hole. Since a microphone hole for a speaker phone is excluded, the microphone unit is advantageous in space utilization, and can contribute to designing an elegance appearance of the mobile terminal. In addition, since the microphone unit is manufactured integrally with the ear jack assembly, manufacturing costs reduce and working efficiency may increase.

Abstract: An audio output device controls the application of active noise cancellation (ANC) levels based on a current status of the device. The audio output device includes a communication interface configured to provide a wired or wireless connection to a playback device, a signal detector configured to detect an audio signal provided through the communication interface, an ANC module configured to apply a first-level ANC to the audio signal, and a control unit configured to determine a level of the ANC to be applied by the ANC module. Upon determining that the audio signal is not provided based on information provided from at least one of the communication interface or the signal detector, the control unit instructs the ANC module to perform a second-level ANC.

Abstract: An audio accessory and an audio output method are provided. The audio accessory includes a connector configured to be connected to an external device, an audio output unit configured to output a sound, and a switching unit configured to select a signal path according to whether the sound output through the audio output unit is in a balanced mode or an unbalanced mode.

Abstract: An apparatus and a method for outputting an audio signal in a portable terminal are provided. The portable terminal for outputting an audio signal includes an ear jack, a modem, and an amplifier. The ear jack connects the portable terminal with one of an earphone and an external apparatus. The modem detects whether one of the earphone and the external apparatus is connected to the ear jack. When connection of the external apparatus is detected, the amplifier high power-amplifies the audio signal and outputs the same to the external apparatus according to a control of the modem.

Abstract: An audio output device controls the application of active noise cancellation (ANC) levels based on a current status of the device. The audio output device includes a communication interface configured to provide a wired or wireless connection to a playback device, a signal detector configured to detect an audio signal provided through the communication interface, an ANC module configured to apply a first-level ANC to the audio signal, and a control unit configured to determine a level of the ANC to be applied by the ANC module. Upon determining that the audio signal is not provided based on information provided from at least one of the communication interface or the signal detector, the control unit instructs the ANC module to perform a second-level ANC.

Abstract: A mobile terminal is provided that does not have a separate dedicated microphone hole. The mobile terminal preferably includes an ear jack assembly and a microphone unit. The ear jack assembly includes an ear jack plug insert hole. The microphone unit is disposed in a neighborhood of the ear jack assembly. The microphone unit is realized to use a microphone hole for receiving an external note also as an ear jack plug insert hole. Since a microphone hole for a speaker phone is excluded, the microphone unit is advantageous in space utilization, and can contribute to designing an elegance appearance of the mobile terminal. In addition, since the microphone unit is manufactured integrally with the ear jack assembly, manufacturing costs reduce and working efficiency may increase.

Abstract: A mobile device for providing multi-channel sound collection and output using a common connector, and a driving method thereof are provided. A mobile device having a sound compressor and a sound decompressor includes a connector slidably receiving a sound collector plug or a sound output plug, a plug identification unit for, if one of the sound collector plug and the sound output plug is coupled to the connector, identifying if the plug coupled to the connector is the sound collector plug or is the sound output plug, a switching unit for electrically coupling the plug coupled to the connector, to the sound compressor, or electrically coupling the plug coupled to the connector, to the sound decompressor, and a controller for controlling switching of the switching unit according to the identification outcome.

Abstract: A method and an apparatus for processing an audio signal in a mobile terminal, in which an audio signal that is received from a counterpart mobile terminal is classified into a voice signal and a noise signal according to respective energy. A frequency of the classified voice signal and an energy of the classified noise signal is controlled according to a predetermined criteria, then the controlled voice signal and the controlled noise signal are coupled and output to a speaker.

Abstract: An apparatus and a method for outputting an audio signal in a portable terminal are provided. The portable terminal for outputting an audio signal includes an ear jack, a modem, and an amplifier. The ear jack connects the portable terminal with one of an earphone and an external apparatus. The modem detects whether one of the earphone and the external apparatus is connected to the ear jack. When connection of the external apparatus is detected, the amplifier high power-amplifies the audio signal and outputs the same to the external apparatus according to a control of the modem.

Abstract: An apparatus and a method for outputting an audio signal in a portable terminal are provided. The portable terminal for outputting an audio signal includes an ear jack, a modem, and an amplifier. The ear jack connects the portable terminal with one of an earphone and an external apparatus. The modem detects whether one of the earphone and the external apparatus is connected to the ear jack. When connection of the external apparatus is detected, the amplifier high power-amplifies the audio signal and outputs the same to the external apparatus according to a control of the modem.

Abstract: An electronic device and a method for measuring quality of a voice signal are provided. The method includes generating a mask of an echo signal and a mask of a speech signal by comparing the echo signal and the speech signal included in an input sound with respective thresholds, calculating an estimation of the echo signal and an estimation of the speech signal, and measuring quality of the input speech signal by using each of the calculated estimation of the echo signal and the calculated estimation of the speech signal.

Abstract: A structure for electronically connecting between two devices is provided. The structure includes a mount structure capable of mounting a first device, and a connector maintaining electronic connection with a second device and being movable on the mount structure depending on a connection position with the mounted first device.

Abstract: A speaker module of a portable terminal and a method of execution of a speakerphone mode using the same are provided. The speaker module includes a nondirectional microphone, a directional microphone, at least one speaker, and a controller. The nondirectional microphone is applied to one side of the portable terminal. The directional microphone is applied to another side of the portable terminal. The at least one speaker is installed in the same direction near the directional microphone. When the portable terminal is in a speakerphone mode, the controller controls to detect voice signal levels and/or frequency characteristics input to the two microphones, sets a transmission/reception mode of the portable terminal, and mute-processes a corresponding microphone.

Abstract: A mobile device for providing multi-channel sound collection and output using a common connector, and a driving method thereof are provided. A mobile device having a sound compressor and a sound decompressor includes a connector slidably receiving a sound collector plug or a sound output plug, a plug identification unit for, if one of the sound collector plug and the sound output plug is coupled to the connector, identifying if the plug coupled to the connector is the sound collector plug or is the sound output plug, a switching unit for electrically coupling the plug coupled to the connector, to the sound compressor, or electrically coupling the plug coupled to the connector, to the sound decompressor, and a controller for controlling switching of the switching unit according to the identification outcome.

Abstract: An apparatus and a method for reducing cross-talk between audio channels in a mobile terminal are provided. The apparatus includes an ear jack, a radio signal tuner, a baseband, and a switching unit. The ear jack includes a common port for a reference potential of an earphone and a radio signal. The radio signal tuner processes a radio signal input via the common port. The baseband determines an on/off state of a radio reception function to output a control signal. The switching unit connects the common port of the ear jack to one of a ground and the radio signal tuner according to the control signal.

Abstract: A mobile terminal is provided that does not have a separate dedicated microphone hole. The mobile terminal preferably includes an ear jack assembly and a microphone unit. The ear jack assembly includes an ear jack plug insert hole. The microphone unit is disposed in a neighborhood of the ear jack assembly. The microphone unit is realized to use a microphone hole for receiving an external note also as an ear jack plug insert hole. Since a microphone hole for a speaker phone is excluded, the microphone unit is advantageous in space utilization, and can contribute to designing an elegance appearance of the mobile terminal. In addition, since the microphone unit is manufactured integrally with the ear jack assembly, manufacturing costs reduce and working efficiency may increase.

Abstract: A method and an apparatus for processing an audio signal in a mobile terminal are provided, wherein an audio signal received from a counterpart mobile terminal is classified into a voice signal and a noise signal according to respective energy, and a frequency of the classified voice signal and an energy of the classified noise signal is controlled according to a predetermined criteria, then the controlled voice signal and the controlled noise signal are coupled and output to a speaker.

Abstract: A speaker module of a portable terminal and a method of execution of a speakerphone mode using the same are provided. The speaker module includes a nondirectional microphone, a directional microphone, at least one speaker, and a controller. The nondirectional microphone is applied to one side of the portable terminal. The directional microphone is applied to another side of the portable terminal. The at least one speaker is installed in the same direction near the directional microphone. When the portable terminal is in a speakerphone mode, the controller controls to detect voice signal levels and/or frequency characteristics input to the two microphones, sets a transmission/reception mode of the portable terminal, and mute-processes a corresponding microphone.

Abstract: A structure for electronically connecting between two devices is provided. The structure includes a mount structure capable of mounting a first device, and a connector maintaining electronic connection with a second device and being movable on the mount structure depending on a connection position with the mounted first device.