4767results about How to "Easy to charge" patented technology

A system, method and apparatus for contact-less charging of battery operated devices, including 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, wherein the method obviates the need for a voltage controller in each of both the host and the portable stages. 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. 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.

A method, computer-readable medium, and system for managing a transfer of energy is disclosed.

Non-volatile memory devices and arrays are described that facilitate the use of band-gap engineered gate stacks with asymmetric tunnel barriers in reverse and normal mode floating node memory cells in NOR or NAND memory architectures that allow for direct tunnel programming and erase, while maintaining high charge blocking barriers and deep carrier trapping sites for good charge retention. The low voltage direct tunneling program and erase capability reduces damage to the gate stack and the crystal lattice from high energy carriers, reducing write fatigue and enhancing device lifespan. The low voltage direct tunnel program and erase capability also enables size reduction through low voltage design and further device feature scaling. Memory cells of the present invention also allow multiple bit storage. These characteristics allow memory device embodiments of the present invention to operate within the definition of a universal memory, capable of replacing both DRAM and ROM in a system.

A Group III nitride based high electron mobility transistors (HEMT) is disclosed that provides improved high frequency performance. One embodiment of the HEMT comprises a GaN buffer layer, with an Al_yGa_1−yN (y=1 or y 1) layer on the GaN buffer layer. An Al_xGa_1−xN (0≦x≦0.5) barrier layer on to the Al_yGa_1−yN layer, opposite the GaN buffer layer, Al_yGa_1−yN layer having a higher Al concentration than that of the Al_xGa_1−xN barrier layer. A preferred Al_yGa_1−yN layer has y=1 or y˜1 and a preferred Al_xGa_1−xN barrier layer has 0≦x≦0.5. A 2DEG forms at the interface between the GaN buffer layer and the Al_yGa_1−yN layer. Respective source, drain and gate contacts are formed on the Al_xGa_1−xN barrier layer. The HEMT can also comprising a substrate adjacent to the buffer layer, opposite the Al_yGa_1−yN layer and a nucleation layer between the Al_xGa_1−xN buffer layer and the substrate.

The invention relates to methods, devices and systems for the authenticated access to a data network by means of a station (WH) compatible with a data network (WLAN), which permit an authentication of the station and user. A device, for example a mobile radio device, is used for the above, which is authenticated in another system. In addition to the authentication, in particular a charging of services in a data network or another communication system (GSM) which is accessible by means of the data network is thus possible.

A wireless charging method for an electronic device using an electromagnetic radiation (EMR) circuit is provided. The wireless charging method includes receiving an event input through the EMR circuit, controlling an input function according to a signal received through the EMR circuit in response to an input event, and controlling a wireless charging of a target device or electronic device using energy generated through the EMR circuit in response to a charge event.

Disclosed herein are novel electrophoretic displays and materials useful in fabricating such displays. In particular, novel encapsulated displays are disclosed. Particles encapsulated therein are dispersed within a suspending, or electrophoretic, fluid. This fluid may be a mixture of two or more fluids or may be a single fluid. The displays may further comprise particles dispersed in a suspending fluid, wherein the particles contain a liquid. In either case, the suspending fluid may have a density or refractive index substantially matched to that of the particles dispersed therein. Finally, also disclosed herein are electro-osmotic displays. These displays comprise at least one capsule containing either a cellulosic or gel-like internal phase and a liquid phase, or containing two or more immiscible fluids. Application of electric fields to any of the electrophoretic displays described herein affects an optical property of the display.

A voice communication system over WiFi 802.11 network includes: WiFi phone devices, subscription servers and wireless access points. Through voice and data gateways the system can transfer both voice and data streams through WiFi; Phone devices with both wired and WiFi wireless interfaces can automatically switches between wired network and wireless network through WiFi access points. Subscription server maintains the current status of each device every time it changes location. Voice packets are prioritized over regular data packets and dispatched to different network interface by smart packet dispatcher. Quality of service for voice conversation over WiFi is achieved by various methods: piggy-tail method and ACK enhancements and other improvements to reduce delay and latency of real time voice packets.

The invention discloses an electric vehicle lease management system on the basis of charging piles. The electric vehicle lease management system comprises a system remote management control center, electric vehicles, the charging piles and intelligent terminals. A vehicle battery data acquisition module, a wireless communication module and an intelligent control module are mounted on each electric vehicle; an intelligent control unit and a communication module are mounted on each charging pile, each intelligent terminal is wirelessly communicated with the system remote management control center, and the wireless communication module of each electric vehicle is wirelessly communicated with the system remote management control center. The electric vehicle lease management system has the advantages that lease systems which are used by vehicle lease users and management staffs can be conveniently and quickly implemented by the aid of modern information network technologies, the users can order lease application and check relevant lease information via the intelligent terminals or directly via computers at any time in any places, and the management staffs can monitor various indexes such as electric vehicle location data and battery data in real time, and prompting effects can be timely realized.

An improved switching regulator for implantable medical devices includes a control circuit with a capacitor divider to conserve energy, and selectable duty cycles to efficiently match the duty cycle to the charge level in a holding capacitor. The switching regulator charges the holding capacitor to commanded voltage levels, and the holding capacitor provides current for tissue stimulation. The commanded voltage level is reached by “pumping-up” the holding capacitor with the output of the switching regulator. For control purposes, the high voltage (i.e., the voltage across the holding capacitor) is divided between a fixed capacitor and a variable capacitor, and the voltage between the fixed capacitor and the variable capacitor (i.e., the divided voltage) is compared to a reference voltage. The result of the comparison is used to turn-off the switching regulator once the commanded voltage level is reached. The switching duty cycle is set to one of two values. At start-up, or when the output voltage drops below a determined threshold, a low duty cycle is used. Once the output voltage reaches the threshold, a higher duty cycle is used.

A system for an engine of a vehicle traveling on the road, comprising of a cylinder located in the engine, a delivery system configured to deliver fuel and a fluid to at least an engine cylinder while the vehicle is traveling on the road, said fluid including at least some water, and a controller for varying an amount of said fuel and fluid delivered to the cylinder in different ratios as a condition varies, said controller further varying a spark timing of a spark in said cylinder as an amount of water in said fluid varies.

The present invention provides a confidential information management system which allows users to securely obtain confidential information files containing various confidential information, which files are securely stored in the present system, anywhere and anytime, using a minimum of confidential information. A confidential information file and encoding/decoding software are downloaded to an information terminal from a confidential information managing server and an encoding/decoding software managing server, respectively, so that the confidential information file is decoded on the information terminal by using the encoding/decoding software. The present system is applicable to various (computer) systems which store and manage confidential information (ID numbers, passwords, encryption keys, digital certificates, etc.) for use in user verification.

A method of using a metal complex as an n-dopant for doping an organic semiconducting matrix material in order to alter the latter's electrical characteristics is provided. In order to provide n-doped organic semiconductors with matrix materials having a low reduction potential, while achieving high conductivities, the n-dopant is a neutral electron-rich metal complex with a neutral or charged transition metal atom as a central atom and having at least 16 valence electrons. The complex can be polynuclear and can possess at least one metal-metal bond. At least one ligand can form a π complex with the central atom, which can be a bridge ligand, or it can contain at least one carbanion-carbon atom or a divalent atom. Methods for providing the novel n-dopants are provided.

An energy storage device comprising at least one negative electrode, wherein each negative electrode is individually selected from (i) an electrode comprising negative battery electrode material; (ii) an electrode comprising capacitor electrode material; (iii) a mixed electrode comprising either—a mixture of battery and capacitor electrode material or—a region of battery electrode material and a region of capacitor electrode material, or—a combination thereof, and wherein the energy storage device either comprises at least one electrode of type (iii), or comprises at least one electrode of each of types (i) and (ii),—at least one positive electrode, wherein the positive electrode comprises positive battery electrode material and a charging ability-increasing additive, such as one or a mixture of: (a) carbon nanomaterial, vapour grown carbon fibre, fullerene, or a mixture thereof, and (b) tin dioxide conductive materials.

The present invention provides a wireless charging equipment for mobile phones for mobile phones. The charging equipment comprises a protection cover with a switch port and a charger with an internal battery arranging therein. The mobile phone is enveloped in the protection cover, one end of the switch port is electrically connected with the socket of the mobile phones while the other end is electrically connected with the charger which is detachable from the switch port, the mobile phone then could be charged via the electricity provided by the internal battery. The charging equipment is facilitated to carry, when travelling to some places where it is not easy to find somewhere to charge, people can charge the mobile phone by using the internal battery of the present invention so as to extent the working time of the mobile phone. When charging is not processing, the protection cover of the present invention can serve as a common mobile phone protection cover, avoiding the mobile phone from scratching or crashing. Moreover, contact points are positioned on the protection cover and the charger of the present invention, The contact points can be designed in a consistent pattern, enabling different mobile phones to charge by using the same charger and protection cover, thereby it can be universally used.