922results about How to "Save power consumption" patented technology

A frequency modulation type wireless power supply and charger system includes a power supply base unit consisting of a first microprocessor, a power circuit, a power switch driver circuit, a first resonant circuit, a first coil, a detection module and a power input interface, and a wireless power supply and charge receiver unit consisting of a secondary coil, a second resonant circuit, a rectifier filter circuit, a detection and protection module, a second microprocessor, a temperature sensor, a charging module and a power output interface and adapted for receiving electrical power from the power supply base unit wirelessly for charging an external electronic device. The detection and protection module of the wireless power supply and charge receiver unit detects the supply of the electrical power, and the second microprocessor sends a feedback signal to the power supply base unit through the signal generator circuit and the second resonant circuit subject to the detection of the detection and protection module for enabling the power supply base unit to control the power switch driver circuit to regulate its output power automatically, thereby minimizing power transmission loss and the load of the internal components of the wireless power supply and charge receiver unit.

An auto-focusing device with voice coil motor for position feedback comprises a lens holder, a sensor holder, a permanent magnet set, a yoke and a base. The lens holder holds a lens barrel and is wound around with at least two coils wound in opposite directions. The sensor holder holds an image sensor. The permanent magnet set includes at least two permanent magnets stacked together with opposing poles to form a multi-pole permanent magnet set. The permanent magnet set is furnished on the periphery of lens holder and corresponds to the two coils on lens holder. The permanent magnet set is disposed on the yoke to form a close-loop magnetism so as to increase the density of magnetic lines and the efficiency of magnetic force, save power consumption, and extend the service life of device.

A heat dissipation apparatus is described. The heat dissipation apparatus is used in an electrical product, and especially in a notebook computer. The heat dissipation apparatus has two cooling fans, at least one heat pipe, and at least two heat dissipation fins. The first fan sucks cooling air from outside of the electrical product. The heat pipe coupling with a heat source transfers heat generated by the heat source to the heat dissipation fins. The first heat dissipation fin and the first fan remove part of the heat out of the electrical product. The second heat dissipation fin further connects with the heat source and the heat pipe to utilize the second fan to remove part of the heat exhausted by the first fan from the electrical product. The heat dissipation apparatus further comprises a third heat dissipation fin and a second heat pipe. The second heat pipe efficiently transfers the heat to each of the heat dissipation fins. The third heat dissipation fin is positioned in an outlet of the second fan to exchange heat again and thus enhance the heat dissipation efficiency.

The present invention relates to a wireless mobile communication system, and more particularly, to a method of transmitting data to mobile terminals in the wireless mobile communication system capable of transmitting multicast data.

In order to solve the aforementioned problems in the prior art, a method of transmitting data to mobile terminals in a mobile terminal communicating with a network through which multicast data are transmitted. The method of the present invention comprises the steps of transmitting a requesting frame to the network for requesting the multicast data when the start of a multicast service is recognized through an upper layer of the mobile terminal; receiving a response frame from the network in response to the request frame; and receiving the multicast data from the network.

Computer system, method and article of manufacture for garbage collection in computer systems that combines individual objects into linearized trees called multiobjects and thereafter utilizes multiobjects to implement most memory management operations such as detection of dead objects and compaction without the need to inspect individual objects, thereby improving performance and reducing power consumption.

A navigation system for an electric vehicle includes a telematics center, a display terminal, and a charging station. In response to a request from the display terminal, the telematics center sends a route search result, which is created based on information on an electric vehicle and the charging station and which includes base point information whose remaining battery capacity is to be confirmed, to the display terminal. The display terminal displays route guidance information, the current position, and a result of comparison between the current remaining battery capacity and the base point information to the user who is driving the electric vehicle.

Suture needles are a significant safety hazard for medical workers, mainly because of accidental needlestick injuries. Disclosed herein are safety suture needle assemblies and related methods. In particular, variations of a safety suture needle having an activatable sheath or flexible extension member are disclosed. The implementation of certain embodiments of the disclosed invention can result in a desired improvement in safety, including the prevention of unwanted needle punctures, while achieving efficient suturing.

A method, system and computer program product for a display system driving a display device is provided. The display system includes a processor, a primary display controller, a secondary display controller and the display device. The primary display controller receives display data that is sent by the processor. The primary display controller also drives the display device when the processor sends new display frames. When these display frames are sent by the processor continuously, control of the display device is switched to the secondary display controller, which is optimized for a low-power operation.

Disclosed are an apparatus and a method for changing an operation mode of a dual mode terminal by synchronizing a radio frequency identification (RFID) system with a terminal RFID reader and/or a terminal TFID tag. The RFID system includes an RFID tag and/or an RFID reader is installed in a specific area, or in a predetermined area or an entrance/exit of a building provided with a WiFi service. The terminal RFID reader and/or the terminal RFID tag are installed in the dual mode terminal providing a WiFi service and a mobile communication service. Accordingly, the present invention provides advantages of saving power consumption and improving user convenience.

There is provided a semiconductor integrated circuit that hardly causes an unnecessary operation time for variable control over an operating frequency and an internal power supply voltage. A CPU specifies an operational clock signal frequency to a clock generation circuit and an internal power supply voltage to a power supply circuit. The power supply circuit comprises a voltage regulator and a determination circuit to determine a transition state to a specified internal power supply voltage. The CPU uses a first signal to notify which time point the power supply voltage variable control start to the power supply circuit. The power supply circuit returns a second signal to the CPU to notify at which time point the power supply voltage variable control terminated. Based on handshaking between the first and second signals, the power supply voltage variable control hardly causes an unnecessary operation time for variable control over the operating frequency and the internal power supply voltage for saving power consumptions.

The present invention provides a surface illuminator having a uniform luminance over a large area by using a laser light source, having a wide color reproduction range, and capable of suppressing a speckle noise, as well as a liquid crystal display using the same. The surface illuminator of the present invention includes the laser light source that emits a laser beam; a beam scan section that deflects and scans the laser beam; and a first plate-shaped light guide that makes the laser beam deflected and scanned by the beam scan section to be incident from an end face portion and making the incident laser beam to emit from a first major surface. Further, the liquid crystal display of the present invention includes a liquid crystal display panel and the surface illuminator, wherein the surface illuminator is used as a backlight illuminator that lights the liquid crystal display panel from backside in this liquid crystal display.

A method for operating PON (passive optical network) user terminal and a PON user terminal equipment, when there is only few data service request in the PON, the PON user terminal operates in power saving manner which maintains low speed connection, the method comprises: a judgment condition that the PON user terminal changes to power saving state is set; the PON user terminal determines whether its own state meet the judgment condition changing to power saving state, if so, it transmits a request to change to power saving state to the OLT (optical line terminal); after the PON user terminal receives the respond that the OLT has accepted the request, it controls parts of the modules therein to change to power saving state, and intermittently switch over between power saving state and normal state. The invention allows saving power under the condition that keeps the low speed service uninterrupted, in the meanwhile alleviates the pressure of ONU terminal thermal design.

A video display device includes: connectors to which cables transmitting video signals are connected; a display panel displaying video by the video signal inputted to the connector from an external device through the cable; a display control unit displaying connector indications indicating the connectors on the display panel; a cable detection unit outputting a step waveform signal to the connector and detecting connection/disconnection of the cable to the connector based on a reflected signal of the step waveform signal, and wherein the display control unit changes the appearance of the connector indications displayed on the display panel according to a detection output of the cable detection unit.

A vehicle comprises a transaxle, a battery and a load carrying bed. The transaxle includes a casing incorporating a drive train and supporting an axle and includes an electric motor mounted on the casing to drive the axle via the drive train. The battery is provided for supplying electric power to the electric motor. The transaxle and the battery are disposed below the load carrying bed so as to overlap the load carrying bed when viewed in plan.

A suspension structure for an electric wheelchair comprises a frame, two cantilevers, two drive wheels, two rollers, four wheel-mounting assemblies, two front wheel assemblies, two draglines and two rear wheel assemblies. When surmounting a barrier, the front wheel assemblies will pivot upward and press down the drive wheels through the cantilevers, thus improving the road holding performance of the drive wheels. In other words, the drive wheels and the front wheels can move interactively to surmount the barrier.

A tracking and locating system and method which provides for a lightweight and portable tracking locator device. The locating system is easily transferable from one user to another user or from a first object to second object. The locating system also provides power saving and conserving features. The locating system further provides positional information of such locator devices in the form of hypertext markup language pages viewable on the Internet.

The present invention provides a driving circuit capable of exerting improved driving performance while saving power consumption. A capacitive load driving circuit includes a gate driver, which drives scan electrodes aligned in a column direction of capacitive load circuits arranged in a matrix, and a source driver, which drives data electrodes aligned in a row direction of the capacitive load circuits. The source driver includes a plurality of output circuits, which are aligned in the row direction, for driving the respective data electrodes. Each of the plurality of output circuits drives the corresponding data electrode after changing the pre-charge amount on the basis of the position of the scan electrode driven by the gate driver.