Abstract: Provided is a device for outputting an audio signal. The device includes: a vibrator configured to output the audio signal; a vibrator cover provided on the vibrator to transmit the output audio signal to a surface of an object mounted with the device; a sensor configured to measure a pressure between the surface of the object and the vibrator cover; a distance adjusting unit configured to adjust a distance between the surface of the object and the vibrator cover based on the pressure measured by the sensor to optimally output the audio signal; and a control unit configured to control the vibrator, the sensor, and the distance adjusting unit.

Abstract: A wearable device communicating with an external device by using a vibration signal applied to a body part of a user wearing the wearable device, and a method of operating the wearable device are provided.

Abstract: An apparatus for processing a speech signal is provided.

Abstract: Provided is a device for outputting an audio signal. The device includes: a vibrator configured to output the audio signal; a vibrator cover provided on the vibrator to transmit the output audio signal to a surface of an object mounted with the device; a sensor configured to measure a pressure between the surface of the object and the vibrator cover; a distance adjusting unit configured to adjust a distance between the surface of the object and the vibrator cover based on the pressure measured by the sensor to optimally output the audio signal; and a control unit configured to control the vibrator, the sensor, and the distance adjusting unit.

Abstract: A wearable device communicating with an external device by using a vibration signal applied to a body part of a user wearing the wearable device, and a method of operating the wearable device are provided.

Abstract: An apparatus for processing a speech signal is provided.

Abstract: Provided is a method for providing elasticity information. The method includes: acquiring an elasticity image of an object; classifying the elasticity image into at least one similar tissue; determining a reference strain based on a strain of a reference similar tissue among the at least one similar tissue; and outputting a ratio or a difference between the reference strain and a strain of an interesting region of the elasticity image.

Abstract: A novel diffusion type transistor which is useful for relatively high-power and high-current applications and a method for manufacturing the transistor are disclosed.In constructing the transistor, the base under emitter has three zones, one of which is a buried layer such as used in the fabrication of bipolar integrated circuits. Two of the zones, including the buried layer base zone, are highly doped to provide a low resistivity base current path. The last zone is a low impurity concentration epitaxially grown base zone and which accepts and transports the injected minority carriers from the emitter to the collector. Hence, the emitter periphery is determined by the sum of the total PN junction boundary between the buried layer base zone, the epitaxially grown base zone and a diffused emitter.