Abstract: Disclosed herein is a mobile projector. The mobile projector includes an optical modulation system and a projection control unit. The optical modulation system includes an optical source system externally or internally mounted on or in a portable terminal for generating and radiating light, an illumination optical system for converting the light into linear incident light, a diffractive optical modulator for modulating the linear incident light into linear diffracted light in response to driving signals, a projection optical unit for projecting the linear diffracted light onto a screen, and a scanning unit for generating video by repeatedly performing first direction scanning and backward scanning on the linear diffracted light across the screen.

Abstract: Disclosed herein is a forward and reverse scanning-type display device using a diffractive optical modulator. The display device includes a light source system, one or more illumination optical units, a diffractive optical modulator, a projection and scanning optical unit and a display electronic system. The light source system radiates light. The illumination optical units convert the light into linear incident light. The diffractive optical modulator modulates the linear incident light into linear diffracted light in response to driving signals. The projection and scanning optical unit creates an image by repeatedly and alternately scanning the linear diffracted light on a screen in a first direction and in a reverse direction.

Abstract: A mobile terminal includes an optical modulation projector. The mobile terminal also includes a control system, a projection control unit, and an optical modulation system. The control system outputs a projection control signal and image data. The projection control unit receives the image data from the control system, and generates and outputs a drive control signal depending on the image data received. The optical modulation system generates and modulates light and generates an image in response to the drive control signal and then scans the image for projecting onto a screen.

Abstract: A clothes drying machine, in which the installation position of a temperature sensor is optimized to minimize the interruption of the operation of a burner, thereby shortening the drying time of laundry. The clothes drying machine includes a suction duct for guiding air to be introduced to a rotary drum; a burner for heating air introduced into the suction duct; and a temperature sensor installed in the suction duct for controlling the operation of the burner, wherein the temperature sensor is installed at a position separated from an inlet of the suction duct by a designated distance, and the ratio of the distance to a diameter of the inlet of the suction duct is 0.9˜1.

Abstract: An induction-heating cooking apparatus, operation of which is interrupted by container eccentricity is disclosed. Upon receiving an input signal varying with the degree of eccentricity of a container, the apparatus changes a reference signal for determining the presence or absence of a small load in proportion to a pulse-width control signal controlling the width of an inverter driving pulse. Although the eccentricity of the container occurs in a normal heating operation and completely escapes from a cook zone, the apparatus determines the occurrence of a no-load state, and interrupts an operation of an inverter circuit, resulting in increased stability of a circuit and a product.

Abstract: An induction heating cooker capable of accurately discriminating whether the material of a cooking container placed in the induction heating cooker is magnetic or non-magnetic, using a phase change in a resonant capacitor voltage of an inverter circuit and a switching pulse signal of the inverter circuit, irrespective of the load of the cooking container, and a method for operating the induction heating cooker.

Abstract: A cathode ray tube includes a front side glass panel, a fluorescent screen formed on an inside surface of the panel, a funnel connected to the panel, forming a vacuum tube, an electron gun embedded in the funnel, a deflection yoke for deflecting electron beams emitted from the electron gun in horizontal and vertical directions, and a shadow mask for discriminating the electron beams in colors, in which a diagonal curvature radius (Rd), thickness (t), and effective diagonal length (D) of the shadow mask satisfy a condition of 9 , 000 ? Rd × 391 ? ? ? mm D × t ? 10 , 000.

Abstract: A method for enabling a first terminal of a packet-based network to communicate with a second terminal connected to a remote access server includes the steps of: registering the aliases and IP addresses of the first terminal and the remote access server in the gatekeeper; letting the first terminal to send a message to the gatekeeper for requesting a connection with the second terminal; causing the gatekeeper to request the remote access server to connect with the second terminal even when the second terminal is not registered with the gatekeeper; causing the remote access server to request the second terminal to register its alias and IP address in the gatekeeper; and, establishing communication between the first and second terminals through the gatekeeper.

Abstract: Disclosed is a deodorizer composition comprising magnesium and calcium phosphate compounds, capable of effectively removing various malodorous components from the atmosphere.

Abstract: A method starts with submitting an internet protocol address to a web search engine so that the location of a user can be determined. Then, a user inputs one or more keywords that can be used by the web search engine to compare with all of its generated indexes. After searching various indexes, the web search engine may find multiple uniform resource locators that identify various servers that contain information that may be relevant to the user's search. Then, the web search engine uses an internet protocol mapping table, that is generated by the web search engine along with other data regarding various uniform resource locators prior to performing the requested search, to correlate the uniform resource locators with the geographical address of the server. Afterwards, the web search engine is able to sort the results of the search using the distance between the uniform resource locators and the user.

Abstract: Disclosed is a deodorizer composition comprising magnesium and calcium phosphate compounds, capable of effectively removing various malodorous components from the atmosphere.

Abstract: A method for providing information placed in the specific location after analyzing the locations of the information is disclosed. Web search function to search information placed in the specific location comprises the steps of inputting the keywords and the locations of the desired information on the web browser by the web searcher, searching the indexes according to the keywords and the locations by the web search server, finding the URLs (Uniform Resource Locator) of the searched indexes by the web search server, comparing the URLs with the inputted locations, and transmitting the compared results to the web searcher. The present invention reduces the amount of the transmitting data, transmitting time, the amount of the data to be stored in the computer of the web searcher, and prevents the web searcher from sorting the searched pages case by case.