Abstract: A vacuum heat treatment apparatus according to the embodiment comprises a chamber; a thermal insulator in the chamber; a reaction container in the thermal insulator; a heating member between the reaction container and the the thermal insulator for heating the reaction container; and a temperature measuring member in or on a surface of the reaction container, wherein the temperature measuring member comprises a thermocouple and a protective tube surrounding the thermocouple, and the protective tube comprises tungsten (W), tantalum (Ta), or silicon carbide (SiC).

Abstract: A method of fabricating silicon carbide powder according to the embodiment comprises the steps of preparing a mixture by mixing a silicon source comprising silicon, a silicon carbide source and a carbone source comprising at least one of a solid carbon and a organic compound; and reacting the mixture.

Abstract: A method of fabricating silicon carbide powder according to the embodiment comprises the steps of preparing a mixture by mixing a silicon source comprising silicon with a carbon source comprising a solid carbon source or an organic carbon compound; reacting the mixture; and controlling the reacting of the mixture, wherein the step of controlling the reacting comprises a step of supplying process gas or reaction product gas.

Abstract: A mobile apparatus and control method thereof are provided, which includes an audio data signal input unit arranged to receive an audio data signal. An audio output unit is arranged to output an audio signal according to the received audio data signal within a first reproduction frequency. A balanced armature is arranged to output an audio signal according to the received audio data signal within a second reproduction frequency band. The second reproduction frequency band is different from the first reproduction frequency band. An audio signal processor is arranged to adjust the first reproduction frequency band and the second reproduction frequency band such that a combination of the first reproduction frequency band and the second reproduction frequency band is wider than the first reproduction frequency band and the second reproduction frequency band individually.

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 docking station for sound amplification and sound quality enhancement is provided. The docking station includes a support structure for holding a mobile terminal having an internal speaker to sustain the posture of the mobile terminal, and a body for supporting the support structure, and for physically contacting the speaker to increase the volume of sound output from the speaker. The body includes a collecting hole for contacting the speaker to collect sound waves, and a guide hole that extends from the collecting hole through the body to the outside along an extension direction, is divided into two branches within the body to guide the collected sound waves along different paths, and has a horn shape whose cross section increases along the extension direction. Hence, the docking station can increase the volume of audible sound and sound quality without separate supply of power.

Abstract: A docking station for sound amplification and sound quality enhancement is provided. The docking station includes a support structure for holding a mobile terminal having an internal speaker to sustain the posture of the mobile terminal, and a body for supporting the support structure, and for physically contacting the speaker to increase the volume of sound output from the speaker. The body includes a collecting hole for contacting the speaker to collect sound waves, and a guide hole that extends from the collecting hole through the body to the outside along an extension direction, is divided into two branches within the body to guide the collected sound waves along different paths, and has a horn shape whose cross section increases along the extension direction. Hence, the docking station can increase the volume of audible sound and sound quality without separate supply of power.

Abstract: An earphone and method for forming the same are provided. The earphone includes an earphone housing, a speaker, and an earcap. The earphone housing includes a speaker mounting portion. The speaker is fixed to the earphone housing, and has a cable that passes through the body and is drawn from the body. The earcap is installed to at least partially enclose the speaker and the housing, and has at least one speaker sound emitting hole therein. The earcap is made of a material that solidifies after a predetermined time elapses, and is manufactured by inserting the material into an ear of a user, and then solidifying the material such that it is suited for a shape of the ear of the user.

Abstract: Provided is a method for manufacturing silicon carbide. The method includes mixing a dry silicon source, a solid carbon source, and a binder with each other and heating the mixed source to form silicon carbide.

Abstract: Disclosed are a silicon carbide and a method for manufacturing the same. The method for manufacturing silicon carbide includes mixing a silicon source with a carbon source, and heating a mixture of the silicon and carbon sources to form the silicon carbide. At least one of the silicon source and the carbon source has an average grain size of about 10 nm to about 100 nm.

Abstract: A speaker apparatus selects a path which emits a speaker sound. The speaker apparatus includes a speaker unit for outputting the sound generated from voice data, a body including at least one or more emission paths for guiding and emitting the sound output from the speaker unit, and a member for opening or shutting out at least one emission path.

Abstract: A stand device for a mobile terminal is provided. The device includes a body and at least one slope unit. The body has a seat and a lower side. The seat seats the mobile terminal thereon. The lower side of the body is curved so that the body may be tilted. The at least one slope unit tilts the body in a relevant direction by moving a center of mass.

Abstract: Disclosed herein is a high-purity carbon silicon pulverulent body manufacturing method and system. That is, a high-purity carbon silicon pulverulent body manufacturing method of the present invention includes the step of producing a mixture consisting of silicon sources and carbon sources in a mixer; and the step of synthesizing silicon carbide (SiC) pulverulent body by heating the mixture at a vacuum degree of larger than 0.03 torr and equal to and less than 0.5 torr and at a temperature of equal to or larger than 1300° C. and equal to and less than 1900° C.

Abstract: A docking station for sound amplification and sound quality enhancement is provided. The docking station includes a support structure for holding a mobile terminal having an internal speaker to sustain the posture of the mobile terminal, and a body for supporting the support structure, and for physically contacting the speaker to increase the volume of sound output from the speaker. The body includes a collecting hole for contacting the speaker to collect sound waves, and a guide hole that extends from the collecting hole through the body to the outside along an extension direction, is divided into two branches within the body to guide the collected sound waves along different paths, and has a horn shape whose cross section increases along the extension direction. Hence, the docking station can increase the volume of audible sound and sound quality without separate supply of power.

Abstract: A resonance device for a speaker is provided. The device includes a speaker unit and a resonance unit. The speaker unit outputs a sound corresponding to a signal. The resonance unit is fixed to the speaker unit to provide a space for allowing a sound to resonate. The resonance unit is flexible, and the space for allowing a sound to resonate is variable.

Abstract: An earphone and method for forming the same are provided. The earphone includes an earphone housing, a speaker, and an earcap. The earphone housing includes a speaker mounting portion. The speaker is fixed to the earphone housing, and has a cable that passes through the body and is drawn from the body. The earcap is installed to at least partially enclose the speaker and the housing, and has at least one speaker sound emitting hole therein. The earcap is made of a material that solidifies after a predetermined time elapses, and is manufactured by inserting the material into an ear of a user, and then solidifying the material such that it is suited for a shape of the ear of the user.

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.