959results about How to "Efficient charging" patented technology

A wireless multi charging method and system are disclosed. The wireless charging method selects a portion of mobile devices located in a charging region as a group, and provides energy for wireless charging to the selected group of mobile devices. Accordingly, group charging is possible, and thus it is also possible to selectively charge mobile devices which allow charging.

An operation managing server for charging stations each of which has a charger and accepts a charging request for charging a vehicle battery of a user through the charger at a charging station, including a charging request accepting unit that accepts a charging request from a user when the user makes the charging request, and a charging time estimating unit that estimates a charging time required to charge the vehicle battery of the user on the basis of past charger using data of the user, wherein when there is any charging request from a next user, the charging request accepting unit accepts the charging request concerned while reflecting the estimated charging time of the former user.

Improved assemblies, systems, and methods provide an implantable pulse generator for prosthetic or therapeutic stimulation of muscles, nerves, or central nervous system tissue, or any combination. The implantable pulse generator is sized and configured to be implanted subcutaneous a tissue region. The implantable pulse generator includes an electrically conductive case of a laser welded titanium material. Control circuitry is located within the case, the control circuitry including a rechargeable power source, a receive coil for receiving an RF magnetic field to recharge the power source, and a microcontroller for control of the implantable pulse generator. Improved assemblies, systems, and methods also provide a stimulation system for prosthetic or therapeutic stimulation of muscles, nerves, or central nervous system tissue, or any combination. The stimulation system provides at least one electrically conductive surface, a lead connected to the electrically conductive surface, and an implantable pulse generator electrically connected to the lead.

A system is provided in which a sale price is determined based on a product description, and the sale price is transmitted to a customer. The customer is not guaranteed what specific product will be sold to the customer before an agreement to purchase a product for the sale price is received from the customer. After receiving the agreement, a retailer selects a product conforming to the product description, and identifies the product to the customer. The retailer is able to evaluate a customer's individual demand based on the received description and to determine a sale price accordingly, thereby reducing losses associated with conventional single-price systems. Although this may result in different sale prices for an identical product, the system is perceived as fair because a higher-paying customer likely agreed to a different product description than a lower-paying customer, and neither would have agreed to the other's product description and sale price. The system also allows a retailer to mask product discounts by selecting undesirable redemption conditions under which to sell the product, such as pickup at a faraway location, even if the product is available at a closer location. As a result, the customer believes that the discount is attributable to the undesirable redemption conditions, rather than to the product quality or to decreased demand. Accordingly, price and brand dilution are minimized.

A charging apparatus used with a mobile robot has an improved charging structure so that a mobile robot is easily brought into electrical contact with a charging unit, thereby reducing manufacturing costs and preventing a charging failure. The charging unit is provided with a plurality of charging terminals which are brought into electrical contact with corresponding ones of contact terminals of the mobile robot. Each of the charging terminals includes a body and a head. A contact plate is mounted to a predetermined portion of the head to be brought into electrical contact with a corresponding one of the contact terminals.

Disclosed are a power control system, a power control method, a power control device and a power control program, which can efficiently supply power to an electric device and charge an electric vehicle. A power control device (16) has: a second communication unit (14) that receives charge information pertaining to charging of an on-board battery (23) from an electric car (2) prior to the arrival of the electric car (2) at a location where power is supplied to the electric car (2); and a control determination unit (11) that determines a power supply start time of supplying power to an electric water heater (1) and a charging start time of charging the on-board battery (23), on the basis of the charge information, such that the supply of power to the electric water heater (1) and the charging of the on-board battery (23) are completed by a predetermined time.

An object is to provide a moving object structure capable of reducing power loss caused when power is supplied from a power feeding device to a moving object by wireless communication. Another object is to provide a moving object structure capable of reducing the strength of a radio wave radiated to the surroundings. Before power is supplied to a moving object, a radio wave for alignment of antennas is output from a power feeding device. That is, radio waves are output from a power feeding device in two stages. In a first stage, a radio wave is output to align positions of antennas of the power feeding device and the moving object. In a second stage, a radio wave is output to supply power from the power feeding device to the moving object.

A traveling apparatus and a method for controlling thereof performs efficient charging with regenerative electrical power. An angle θ0 of a table (not illustrated) is detected by a gyroscopic sensor and an acceleration sensor to be supplied to a central control unit. Then, positional command signals Pref1(t) and Pref2(t) formed are supplied to motor control units which perform control of driving left and right motors respectively. Further, rotational positions θm1 and θm2 of the motors are respectively detected in rotary encoders, those det signals are fed back to the motor control units, and control is performed so as to comply with the positional command signals Pref1(t) and Pref2(t) formed in the central control unit. At the same time, a regenerative state is detected by comparing the rotational positions θm1 and θm2 with the positional command signals Pref1(t) and Pref2(t), and information thereon is transmitted to a regenerative charging circuit by serial communication to perform a control of discharging and charging a secondary battery (battery).

The present invention is an air purifier including an ionizing assembly that operates to charge particulate material in an air flow passing through the purifier. The charged particulate material is attracted to and retained by a filter element disposed downstream of the ionization assembly and having an electrical charge opposite to the charged particulate material. The purified air passing through the filter is directed out of the device, optionally in conjunction with a fragrance that is added to the purified air flow. The ionizing assembly is formed with a ground member disposed adjacent the ionizing member to keep the electrons generated by the ionizing assembly within the purifier, and thus prevent static discharges from occurring outside of the purifier. The air flow is directed by a fan through the purifier in an angular and substantially laminar manner, such that the efficiency of the purifier is increased.

A memory uses multiple threshold levels in a memory cell that are not a power of two, and further uses a cell mapping technique wherein the read mapping is only a partial function The domain of read states for a single three-level memory cell, for example, has three states, but only two of them can be uniquely mapped to a bit. The domain of read states for two three-level memory cell, for example, has nine states, but only eight of them can be uniquely mapped to three bits. Although the read mapping is only partial, the voltage margin for the three-level memory cells is larger that the voltage margin available in the commonly used four-level memory cells. This increased voltage margin facilitates memory cell threshold voltage sensing, thereby increasing the reliability of the memory. Memory reliability may be further improved by increasing the voltage margin between the memory cell 0 state and the 1 state relative to the voltage margin between the 1 state and the 2 state, which more effectively accommodates charge loss from the 0 state through electron leakage. Asymmetrical read and program mapping may also be used to improve read reliability in the presence of ground noise or VCC noise.

A device and method for harvesting, generating, storing, and delivering energy to a load, particularly for remote or inaccessible applications. The device preferably comprises one or more energy sources, at least one supercapacitor, at least one rechargeable battery, and a controller. The charging of the energy storage devices and the delivery of power to the load is preferably dynamically varied to maximize efficiency. A low power consumption charge pump circuit is preferably employed to collect power from low power energy sources while also enabling the delivery of higher voltage power to the load. The charging voltage is preferably programmable, enabling one device to be used for a wide range of specific applications.