Abstract: Photographing lenses and a photographing apparatus including the photographing lenses using several lenses and to incorporate high-performance photographing apparatuses in slim portable terminals while maintaining optical characteristics and aberration characteristics of the high-performance photographing apparatuses. The photographing lenses include: a first lens having a positive refractive power and a convex object-side surface; a second lens having a positive refractive power; a third lens having a negative refractive power; a fourth lens having a convex image-side surface; a fifth lens having an object-side surface and an image-side surface that are concave in a region around an optical axis of the photographing lenses; and a sixth lens having an image-side surface that is concave in a region around the optical axis of the photographing lenses. The first lens to sixth lens are sequentially arranged in a direction from an object side to an image side.

Abstract: An optical lens assembly utilized as part of an electronic device may be configured to provide a compact structure and/or a thin profile for the electronic device while maintaining high resolution, via the use of at least one lens having planar surfaces in partial portions thereof. An optical lens assembly may include at least two lenses arranged from an object side to an image side, where at least one of the at least two lenses includes an object side surface with a planar central region, an image side surface that also has a planar central region and a peripheral region having an aspherical surface. Various embodiments with differing lens arrangements are disclosed.

Abstract: A DC-DC converter includes a voltage converting block that converts an input supply voltage to an output voltage and includes a power switch turning on at on-time of a power driving signal, a power driving block that generates the power driving signal using an oscillation output signal, wherein a cycle of the power driving signal varies according to a cycle of the oscillation output signal and a length of the on-time of the power driving signal is fixed to a power time regardless of variation of the cycle of the oscillation output signal, a voltage-controlled oscillating block that generates the oscillation output signal, the cycle of which is controlled according to a level of an oscillation control signal, and a target tracking block that generates a feedback voltage and controls the level of the oscillation control signal such that a feedback voltage follows a target reference voltage.

Abstract: The present invention relates to a transmittance-variable film and a method for producing the same, the film comprising: a transparent substrate; a wire electrode formed on the top of the transparent substrate; an insulating layer formed on the top of the wire electrode; a plurality of partition walls positioned on both sides of the wire electrode; a transparent electrode formed on the top of the plurality of partition walls; a cell configured to be surrounded by the plurality of partition walls, the insulating layer and the transparent electrode; and a charged particle fluid contained inside the cell, wherein the insulating layer is formed with a thickness of 0.4 to 1?m.

Abstract: Disclosed is an image capturing optical system including, in order from an object side, a first lens having positive refractive power and concave upwards, a second lens having positive refractive power, a third lens having negative refractive power, a fourth lens having positive refractive power, a fifth lens having positive refractive power and including at least one inflection points on the object side or an upper surface, and a sixth lens having negative refractive power and being convex upwards.

Abstract: A DC-DC converter includes a voltage converting block that converts an input supply voltage to an output voltage and includes a power switch turning on at on-time of a power driving signal, a power driving block that generates the power driving signal using an oscillation output signal, wherein a cycle of the power driving signal varies according to a cycle of the oscillation output signal and a length of the on-time of the power driving signal is fixed to a power time regardless of variation of the cycle of the oscillation output signal, a voltage-controlled oscillating block that generates the oscillation output signal, the cycle of which is controlled according to a level of an oscillation control signal, and a target tracking block that generates a feedback voltage and controls the level of the oscillation control signal such that a feedback voltage follows a target reference voltage.

Abstract: A lighting apparatus connected to a network includes a light source for emitting light. A controller controls operation of the light source in response to an external control signal. A non-contact sensor detects a non-contact signal and generates a reset signal in response to detecting the non-contact signal. A communication interface communicatively connects the lighting apparatus to a wireless network to receive the external control signal from a remote apparatus via the wireless network and disconnects the lighting apparatus from the wireless network in response to receiving the reset signal from the non-contact sensor.

Abstract: An imaging lens system includes a first lens to a fifth lens sequentially disposed from an object side to an image side. The first lens has a positive refractive power and an object side lens surface that is convex toward the object side. The second lens has a negative refractive power and a meniscus shape that is concave toward the image side. The third lens has a positive refractive power. The fourth lens has a negative refractive power and a meniscus shape that is concave toward the object side. The fifth lens has a negative refractive power and a meniscus shape that is concave toward the image side near an optical axis. The imaging lens system satisfies the following condition: f34/f<?5, where f denotes a focal length of the imaging lens system, and f34 denotes an effective focal length of the third lens and the fourth lens.

Abstract: Provided is an apparatus and method for controlling a portable terminal. The apparatus includes a contact sensing unit which senses an area of an external surface of the portable terminal contacted by a user as the user holds the portable terminal, a recognizing unit which recognizes a function mode of the portable terminal based on information about the contacted area sensed by the contact sensing unit, and a control unit which changes the portable terminal to a function mode recognized by the recognizing unit. Since a function mode of the portable terminal is controlled according to the way a user holds the portable terminal, convenience of changing a function mode of the portable terminal is provided through a single manipulation.

Abstract: A photographing lens system and a photographing apparatus including the photographing lens system are provided. The photographing lens system may include a first lens having a negative refractive power, a second lens having a positive refractive power, a third lens having a negative refractive power, a fourth lens having a negative or positive refractive power, a fifth lens having a negative refractive power, and a sixth lens having a negative or positive refractive power. The first to sixth lenses may be sequentially arranged in a direction from an object side to an image side.

Abstract: A DC-to-DC voltage converter using switching frequency detection is provided. The DC-to-DC voltage converter includes a voltage conversion block including a power switch configured to be turned on in response to a power driving signal and to provide an input supply voltage to be output as the converted output voltage when the power switch is turned on, wherein the converted output voltage has a level that varies depending on a duty cycle of the power driving signal, and a switching control block that receives the converted output voltage and a feedback signal to control the duty cycle of the power driving signal based on a frequency of a feedback signal, the feedback signal having the same period as the power driving signal. Accordingly, when the level of the input supply voltage is changed, the converted output voltage can be recovered to the target level while the switching frequency of the power driving signal is maintained at the same value as before the change of the level of the input supply voltage.

Abstract: Photographing lenses and a photographing apparatus including the photographing lenses using several lenses and to incorporate high-performance photographing apparatuses in slim portable terminals while maintaining optical characteristics and aberration characteristics of the high-performance photographing apparatuses. The photographing lenses include: a first lens having a positive refractive power and a convex object-side surface; a second lens having a positive refractive power; a third lens having a negative refractive power; a fourth lens having a convex image-side surface; a fifth lens having an object-side surface and an image-side surface that are concave in a region around an optical axis of the photographing lenses; and a sixth lens having an image-side surface that is concave in a region around the optical axis of the photographing lenses. The first lens to sixth lens are sequentially arranged in a direction from an object side to an image side.

Abstract: A lighting apparatus connected to a network includes a light source for emitting light. A controller controls operation of the light source in response to an external control signal. A non-contact sensor detects a non-contact signal and generates a reset signal in response to detecting the non-contact signal. A communication interface communicatively connects the lighting apparatus to a wireless network to receive the external control signal from a remote apparatus via the wireless network and disconnects the lighting apparatus from the wireless network in response to receiving the reset signal from the non-contact sensor.

Abstract: A lighting apparatus connected to a network includes a light source for emitting light. A controller controls operation of the light source in response to an external control signal. A non-contact sensor detects a non-contact signal and generates a reset signal in response to detecting the non-contact signal. A communication interface communicatively connects the lighting apparatus to a wireless network to receive the external control signal from a remote apparatus via the wireless network and disconnects the lighting apparatus from the wireless network in response to receiving the reset signal from the non-contact sensor.

Abstract: Provided is a transparent conductive film which includes: a transparent base material; hard coating layers formed on either surface of the transparent base material; and at least one transparent conductive layer formed on the hard coating layer. Also provided is a method for manufacturing the transparent conductive film, which includes: a step of forming hard coating layers on either surface of the transparent base material; and a step of forming the transparent conductive layer on the hard coating layer using a sputtering method.

Abstract: A scheduling method and apparatus in a wireless communication system. The scheduling method for a node B in a wireless communication system supporting a plurality of carriers includes determining a delay weight for each of a plurality of user equipment (UEs) according to a preset weight application time point. The method also includes determining a scheduling metric value of each UE per carrier using the delay weight, and determining a priority of each UE per carrier using the scheduling metric value.

Abstract: The present inventive concept provides a driving method of memory controller controlling nonvolatile memory device using variable resistive element. The memory controller may control a plurality of first memory devices and a second memory device. A number of write drivers in the second memory device may be driven when a number of first memory devices among the plurality of first memory devices are used. A different number of write drivers in the second memory device may be driven when a different number of first memory devices among the plurality of first memory devices are used.

Abstract: A system, medium, and method providing a thumbnail visualizing a plurality of features representing an event to facilitate a search of images. In the system, medium, and method, photographs may be classified into groups based on metadata, e.g., embedded in a photograph file, and a thumbnail may be generated by combining object images extracted from individual representative photographs of the respective groups. The generation of the thumbnail may include extracting metadata from photograph files stored in a photograph folder, classifying the photograph files into groups based on the metadata, selecting representative photographs from the groups using color information included in the metadata, and combining object images extracted from the representative photographs into a thumbnail.

Abstract: A non-volatile memory device using a variable resistive element is provided. The non-volatile memory device includes a memory cell array having a plurality of non-volatile memory cells, a first voltage generator configured to generate a first voltage, a voltage pad configured to receive an external voltage that has a level higher than the first voltage, a write driver configured to be supplied with the external voltage and configured to write data to the plurality of non-volatile memory cells selected from the memory cell array; a sense amplifier configured to be supplied with the external voltage and configured to read data from the plurality of non-volatile memory cells selected from the memory cell array, and a row decoder and a column decoder configured to select the plurality of non-volatile memory cells included in the memory cell array, the row decoder being supplied with the first voltage and the column decoder being supplied with the external voltage.

Abstract: A lighting apparatus connected to a network includes a light source for emitting light. A controller controls operation of the light source in response to an external control signal. A non-contact sensor detects a non-contact signal and generates a reset signal in response to detecting the non-contact signal. A communication interface communicatively connects the lighting apparatus to a wireless network to receive the external control signal from a remote apparatus via the wireless network and disconnects the lighting apparatus from the wireless network in response to receiving the reset signal from the non-contact sensor.