Abstract: A mobile terminal has a waterproof sheet interposed between a first body portion and a second body portion. The waterproof sheet is formed with a curved shaped or step-like cross-section in consideration of characteristic of internal component or a battery arranged on the first body portion of the mobile terminal, the curved shaped or step-like cross-section is configured to encase, in part or in whole, the internal component or the battery.

Abstract: Provided are a video call device and method. The video call device performs a video call by exchanging images with another video call device in real time. The video call device includes: an image obtaining unit obtaining an original image in real time; an image processing unit comprising a first image conversion unit which receives the original image and converts the original image into a first conversion image in real time; and an interface unit transmitting the first conversion image.

Abstract: Provided is a method and apparatus for transmitting and receiving data using a polarization transmission in a line-of-sight (LOS) radio communication system. An for transmitting data using a polarization transmission in a LOS radio communication system may include: an antenna unit including at least two antennas to transmit or receive via a different polarization path; a polarization data setting unit to set the different polarization path for each of the at least two antennas; and a resource allocation unit to set a transmission scheme according to a data characteristic and a service type, and to allocate a resource to be transmitted via the different polarization path according to the transmission scheme.

Abstract: The present invention relates to a 3-dimensional image detector adapted to simultaneously detect images of an object viewed from multi-directions, including: a lens barrel; a refraction section mounted at a front end side of the lens barrel; a lens section mounted at the rear of the refraction section; and an image-detecting section mounted at the rear of the lens section for acquiring an image passed through the refraction section and the lens section.