Abstract: A camera actuator for realizing auto focusing control and zoom functions and a folded zoom camera module including the same. The camera actuator includes a housing, a driving unit being mounted in the housing and having a vibration shaft and a vibration generator, a movable part mounted so as to correspond to the driving unit and configured to be moved by a driving force, a friction moving part configured to be moved in a first direction on the vibration shaft, and a connecting part mutually connecting the friction moving part and the movable part. The connecting part includes a protrusion or a recess formed on a side surface portion of the friction moving part facing the movable part, and includes a recess or a protrusion formed on a side surface portion of the movable part so as to be engaged with the protrusion or the recess.

Abstract: A camera module includes a first circuit board on which the image sensor is mounted; a plurality of lens barrels spaced apart from the first circuit board; a carrier on which the plurality of lens barrels are mounted and configured to move along a plane intersecting an optical axis so as to align any one of the plurality of the lens barrel with the image sensor; an actuator configured to move the carrier to each of an optical axis direction and a direction intersecting the optical axis direction; and a housing receiving therein at least a portion of each of the lens barrels and the actuator.

Abstract: A camera actuator for implementing automatic focusing and zooming, and a compact camera including the same. The camera actuator includes a base, at least one driving unit, and at least one optical unit. The base has an internal accommodation space, is open at both ends thereof in a direction in which light travels, and has at least one opening in one side surface thereof. The driving unit includes a substrate fitted in the opening of the base and mounted with at least one coil on a surface facing the internal accommodation space of the base. The optical unit is provided in the internal accommodation space of the base and configured to be movable in an optical axis direction. The optical unit is mounted with a magnet on a surface facing the substrate. The magnet is positioned to correspond to the coil. The substrate is mounted with two or more coils.

Abstract: A camera actuator for implementing automatic focusing and zooming, and a compact camera including the same. The camera actuator includes a base, at least one driving unit, and at least one optical unit. The base has an internal accommodation space, is open at both ends thereof in a direction in which light travels, and has at least one opening in one side surface thereof. The driving unit includes a substrate fitted in the opening of the base and mounted with at least one coil on a surface facing the internal accommodation space of the base. The optical unit is provided in the internal accommodation space of the base and configured to be movable in an optical axis direction. The optical unit is mounted with a magnet on a surface facing the substrate. The magnet is positioned to correspond to the coil. The substrate is mounted with two or more coils.

Abstract: A camera lens assembly includes: a lens holder unit to which a lens module is mounted; a wire member fixed to the lens holder unit and the lens module, and resiliently supporting the lens module such that the lens module is driven in an optical axis direction; and a fixing member mounted to the lens holder unit to fix the wire member and dampen an impact generated in the wire member due to an impact generated in a direction perpendicular to the optical axis direction. Also, a camera lens assembly can include: a wire module resiliently supporting a lens module such that the lens module is movable in an optical axis direction on a lens holder unit, dampening an impact generated in a direction perpendicular to the optical axis direction, and transferring a current applied to drive the lens module to a circuit board.

Abstract: Provided is an earset. The earset includes an internal microphone provided inside an earphone worn on a user's ear, and configured to receive a first sound transferred from the user's mouth through an external auditory meatus via an Eustachian tube and convert the first sound into a first sound signal, at least one external microphone provided outside the earphone, and configured to receive a second sound provided from the user's mouth and convert the second sound into a second sound signal, and a controller configured to filter a noise of the second sound signal based on the first sound signal, remove the noise, and generate a third sound signal.

Abstract: Disclosed is a rotational actuator for an optical device, which includes a rotary shaft capable of freely rotating at a fixed position; a first shape-memory alloy wire fixed in a first direction to give a rotation moment to the rotary shaft, the first shape-memory alloy wire making length contraction with respect to the rotary shaft when an electric current is applied thereto; a second shape-memory alloy wire fixed in a second direction opposite to the first direction to give a rotation moment with respect to the rotary shaft, the second shape-memory alloy wire making length contraction with respect to the rotary shaft when an electric current is applied thereto; and a control unit configured to supply an electric current to the first shape-memory alloy wire when rotating the rotary shaft in the first direction and supply an electric current to the second shape-memory alloy wire when rotating the rotary shaft in the second direction.

Abstract: Disclosed is a rotational actuator for an optical device, which includes a rotary shaft capable of freely rotating at a fixed position; a first shape-memory alloy wire fixed in a first direction to give a rotation moment to the rotary shaft, the first shape-memory alloy wire making length contraction with respect to the rotary shaft when an electric current is applied thereto; a second shape-memory alloy wire fixed in a second direction opposite to the first direction to give a rotation moment with respect to the rotary shaft, the second shape-memory alloy wire making length contraction with respect to the rotary shaft when an electric current is applied thereto; and a control unit configured to supply an electric current to the first shape-memory alloy wire when rotating the rotary shaft in the first direction and supply an electric current to the second shape-memory alloy wire when rotating the rotary shaft in the second direction.

Abstract: Disclosed herein are an earset capable of correcting voice coming out at a user's ear using voice coming out of the user's mouth and a method of controlling the same. An earset system according to an embodiment includes an earset having a first microphone and a first earphone inserted into the user's ear; and a controller configured to correct, based on a correction value, a first voice signal acquired through the first microphone using a reference voice signal coming out of the user's mouth when voice coming out at the user's ear is input into the first microphone.

Abstract: Disclosed herein are an earset capable of reducing an interference due to communication and a method of controlling the same. A method of controlling an earset including a first earphone unit including a first microphone and a first speaker and inserted into a user's ear and a main body connected to the first earphone unit and having a communicating unit provided therein according to an embodiment includes receiving, by an acoustic echo canceller of the communicating unit, parameter values required in cancelling an acoustic echo from a voice signal input to the first microphone, saving the received parameter values, and, on the basis of the saved parameter values, cancelling an acoustic echo from the voice signal input to the first microphone.

Abstract: Disclosed is an earset.

Abstract: The present disclosure relates to an earset including at least: a first earphone portion containing a first speaker that outputs sound signals or voice signals provided from an external device and a first microphone that receives user's voice signals provided via a user's external auditory canal and configured to be able to be inserted into an external auditory canal of a user; a second earphone portion containing a second speaker that outputs sound signals or voice signals provided from an external device and configured to be able to be inserted into a second external auditory canal of a user; and a main body connected with the first earphone portion and the second earphone portion and configured to be able to set up a calling mode or a playing mode.

Abstract: Provided is an earset. The earset includes an internal microphone provided inside an earphone worn on a user's ear, and configured to receive a first sound transferred from the user's mouth through an external auditory meatus via an Eustachian tube and convert the first sound into a first sound signal, at least one external microphone provided outside the earphone, and configured to receive a second sound provided from the user's mouth and convert the second sound into a second sound signal, and a controller configured to filter a noise of the second sound signal based on the first sound signal, remove the noise, and generate a third sound signal.

Abstract: Disclosed are an earset that may correct a frequency band of a voice coming from a user's ears into a frequency band of a voice coming from the user's mouth, and a control method for the same. According to an embodiment, the control method for the earset including a first earphone unit that is inserted into ears of a user while including a first microphone and a first speaker, and a main body in which a second microphone is disposed, the control method includes: determining whether a voice correction function is activated; and correcting a frequency band of a voice input to the first microphone into a frequency band of a voice input to the second microphone, when the voice correction function is activated.

Abstract: The present disclosure relates to a wired and wireless earset, the earset comprising: a first earphone unit configured to be able to be inserted into a first external auditory canal of a user; a second earphone unit configured to be able to be inserted into a second external auditory canal of the user; and a main body connected to the first earphone unit, the second earphone unit and an external device, the main body comprising a switch setting up an operating mode to allow the earset to operate in one of a first mode and a second mode, and first and second speaker output adjusting circuits adjusting respective outputs of the first and second speakers in the first mode.

Abstract: The present invention provides a soundproof housing for an earset, comprising: a housing main body, coupled to the inside of a front surface case having a protrusion portion inserted into the ear, and provided with a speaker accommodation groove and a microphone accommodation groove; a speaker output hole, penetratingly formed in the speaker accommodation groove so as to communicate with the front surface case, and adjacent to the output end of the speaker; and a microphone input hole, formed in a recessed manner inside the microphone accommodation groove so as to communicate with the front surface case, and adjacent to the input end of the microphone, wherein the housing main body is protrudingly formed as a long protrusion toward the inside of the protrusion portion of the front surface case, so as to be tightly coupled with the inside of the protrusion portion of the front surface case.

Abstract: The present invention relates to an earset, comprising: a first earphone portion, which includes a first speaker for outputting sound signals or voice signals that are provided from an external device, and which can be inserted into a first external auditory canal of a user; a second earphone portion, which includes a first microphone for receiving inputted user voice signals that are provided through the external auditory canal of the user, and which can be inserted into a second auditory canal of the user; and a main body connected to each of the first and the second earphone portion. When the main body is wirelessly connected to the external device, the main body comprises; a signal transceiving portion for transceiving the signals with the external device; and a control portion for outputting via the first speaker the voice signals received from the external device through the signal transceiving portion.

Abstract: Disclosed is a voltage control device including a voltage detector detecting an output voltage output from an output port of a mobile communication device; and a voltage control circuit bypassing the output voltage to an earpiece in which a speaker and a microphone are integrally formed when the output voltage detected by the voltage detector is between a first voltage and a second voltage higher than the first voltage.

Abstract: Disclosed is an ear microphone which includes: a microphone for converting a voice signal provided from the external auditory meatus of a user to an electric signal; a speaker for converting the electric signal provided from an external device to the voice signal; and a soundproof member having a microphone receiving groove for fixing and supporting the microphone to the inside of the housing and a speaker receiving groove for fixing and supporting the speaker to the inside of the housing.

Abstract: Disclosed is an earset. The earset includes a case that forms an appearance thereof, an ear pad that is mounted in one end portion of the case and is attached to/detached from a user's ear, and a soundproof housing that is accommodated in the case and in which a speaker and a microphone are arranged in a forward/backward direction along an axial line of the ear pad.