Patent application number | Description | Published |
20080211455 | Rechargeable Power Supply, Battery Device, Contactless Charger System And Method For Charging Rechargeable Battery Cell - A system, method and apparatus for contact-less charging of battery operated devices is presented. There is a host charger with a power converter and resonant tank circuit and a portable device where the battery is located, with a battery charging control IC. The method obviates the need for a voltage controller in each of both the host and the portable stages, thus decreasing complexity and increasing efficiency. The charging of the battery in the portable device is controlled by a charging controller therein, which is in continual electric communication with the host, whose output power the control IC dynamically monitors and controls. Two embodiments for the charging circuitry in the portable device are presented. In one embodiment component count is minimized but battery charging is not optimized when the battery voltage is very low. In the other embodiment charging efficiency is maximized regardless of the output voltage of the battery, but additional components are utilized. | 09-04-2008 |
20080303479 | Contact-Less Chargeable Battery and Charging Device, Battery Charging Set, and Charging Control Method Thereof - The present invention relates to a wireless charger for a mobile communication terminal, which allows charging a plurality of batteries in a conveniently way without any terminal connection of the batteries to chargers for various mobile communication terminals such as a cellular phone and PDA and also allows intercepting electromagnetic waves while the charger is used, by means of Faraday's law. | 12-11-2008 |
20090102419 | WIRELESS CHARGER DECREASED IN VARIATION OF CHARGING EFFICIENCY - A wireless charger charges a storage battery of a portable electronic device in a wireless manner (non-contacting or contact-less) so that a variation of charging efficiency is not serious though the storage battery is placed any position of the wireless charger. The wireless charger is provided with a primary coil for generating a magnetic field so as to charge a subject, which is provided with a secondary coil, by means of inductive coupling with the secondary coil. The primary coil includes an outer coil arranged with a predetermined winding number and a predetermined size; and at least one inner coil arranged to be included inside the outer coil. The outer coil and the inner coil are arranged so that, when a primary current is applied to the outer coil and the inner coil, magnetic fluxes generated in the outer coil and the inner coil are formed in the same direction. | 04-23-2009 |
20100239464 | SUBSTRATE MANUFACTURING METHOD FOR SENSOR APPLICATIONS USING OPTICAL CHARACTERISTICS AND THE SUBSTRATE THEREFROM - A method for manufacturing a substrate of an analytical sensor and the substrate thus prepared are disclosed. The method for manufacturing the substrate of the sensor application according to the present invention is characterized in that it comprises (a) the step of preparing a dispersed solution of nanoparticles, which are stable in a volatile organic solvent due to surface modification of nanoparticles having a pre-designed certain size on the nanometer level with an organic functional group (b) the step of preparing a single layer film of nanoparticles surface-modified with the organic functional group on the interface using said dispersed solution of nanoparticles on the basis of the Langmuir-Blodgett method, and then transferring said single layer film of nanoparticles to the substrate; and (c) the step of coating the substrate to which said single layer film of nanoparticles is transferred, with the metal thin film by means of the vacuum vapor deposition, and then optionally removing nanoparticles to manufacture a nanostructure to be used as the analytical sensor using optical characteristics. According to the method for manufacturing the substrate of the sensor application according to the present invention as above, the nanoparticles can be uniformly fixed on the solid substrate having a great area above 10×10 cm | 09-23-2010 |
20130201380 | OPTICAL IMAGING SYSTEM AND PORTABLE TERMINAL HAVING THE SAME - An optical imaging system is provided, including a first lens having a positive (+) refractive power, a second lens having a positive (+) or negative (−) refractive power positioned at the rear of the first lens, and a third lens having a positive (+) or negative (−) refractive power positioned at the rear of the second lens, in which the first lens is a heterogeneous cemented lens in which a first sub lens and a second sub lens which have different dispersion values are integrally coupled to each other. | 08-08-2013 |
20130256927 | LENS AND LENS FABRICATION METHOD - Provided is a lens fabrication method including filling liquid-phase resin in a first mold, primarily hardening the liquid-phase resin by heating the liquid-phase resin, secondarily hardening the primarily-hardened resin by irradiating Ultraviolet (UV) rays to the primarily-hardened resin to form a lens, and separating the lens from the first mold. | 10-03-2013 |
20130300921 | IMAGE SENSOR MODULE HAVING CURVED INFRARED CUT-OFF FILTER - An image sensor module includes: an image sensor having an image surface; a plurality of lenses arranged sequentially from an object side to the image surface side, each of the lenses refracting an incident light; and at least one infrared cut-off filter configured to cut off an infrared component from the incident light. At least one surface of the infrared cut-off filter has a concave shape in relation to the object side. | 11-14-2013 |
20140369128 | SEMICONDUCTOR MEMORY DEVICE AND OPERATION METHOD THEREOF - A semiconductor memory device includes a memory cell suitable for having a predetermined cell state based on a data stored therein, a control signal generation unit suitable for generating a control signal for changing the cell state of the memory cell during a reading operation, an information storage unit suitable for storing a variation status information of the control signal to which a moment when the cell state of the memory cell changes is reflected, and an output unit suitable for outputting the variation status information of the control signal stored in the information storage unit as a signal corresponding to the data stored in the memory cell. | 12-18-2014 |