453results about How to "Save power" patented technology

A macro wireless communication system includes a base station and a femto access point for communicating with user equipment (UE), such as handset, whereby the UE receives information regarding the network relationships between the base station and the femto access point. A home profile setting may be stored in the UE. When the UE communicates with a femto access point that is identified in the home profile, the UE adapts a neighbor listing provided by the home femto access point. Alternatively, the base station stores a list of the UE and its corresponding home femto access point, along with the neighbor list of the femto access point. When a UE is connected to the base station and that base station is in neighbor list of the UE's home femto access point, a message is sent to the UE to forward an appropriate neighbor list to simplify handovers.

To provide a communication apparatus for achieving further improvements in communication quality and power saving effect, without depending on network environments. A portable terminal (211) as a communication apparatus includes: a communication I/F unit (108) performing data transmission/reception with a transmitter apparatus (203) on a communication protocol having flow control such as TCP; a power control unit (106) switching power on and off to the communication I/F unit (108); and a suppression/resumption control unit (104) determining cycle interval Tc and cycle data size Dc according to communication quality required by a communication application program and, per cycle interval Tc, causing data of cycle data size Dc to be transmitted in a burst state, suppressing data transmission from the transmitter apparatus (203), and causing the power control unit (106) to power off the communication I/F unit (108) while the data transmission is suppressed (T2 to T3), using the flow control mechanism.

A method for reducing UE power consumption under a communication network is disclosed. The key principle of the method is an algorithm to force a RRC connection between a communication network and a UE to be released when mail client completes the synchronization process and the UE has no activity. The method includes steps of: (a) checking if a user inactive event occurs in the UE; (b) sending a signaling connection release message on a dedicated control channel from the UE.

The invention provides a method, a system and a mobile terminal for controlling screen backlight, and is applicable for the technical field of controlling screen backlight. The method comprises the following steps of: measuring the distance between a user face and a screen of the mobile terminal; judging whether the measured distance between the user face and the screen of the mobile terminal is in a preset distance region; when the distance is in the preset distance region, keeping the screen backlight open; and when the distance is out of the preset distance region, shutting off the screen backlight. By the invention, the screen backlight can be controlled intelligently so as to meet user requirements maximally; a browse effect can be ensured; and a user experience can be improved.

Aggregator for communicating with one or more accessory devices having at least one receiver configured to communicate with one or more devices and collect data therefrom, a processor in communication with the at least one receiver, a first memory in communication with the processor and configured to store the collected data, and a second memory in communication with the processor and configured provide read-write capabilities to the aggregator.

An electronic cigarette and a control method thereof are provided. An electronic cigarette with a heating wire component used for producing heat, where the heating wire component comprises a heating wire having a resistance that varies with temperature; a power source used for providing the heating component with a voltage; and, a controller electrically coupled to the heating wire component and the power source and used for controlling the voltage outputted by the power source. The controller comprises a temperature detection module used for detecting the resistance of the heating wire and thus acquiring the actual temperature of the heating wire component. The temperature detection module presets an upper limit heating temperature and a lower limit heating temperature.

An adaptive power control monitors the noise level within a primary acoustic signal and compares the noise level to a threshold. If the noise level is lower than the threshold, a noise suppression system is deactivated and bypass filtering and cross fading are enabled. If the noise level is higher than the threshold, the noise suppression system is activated.

A system and method are provided for a system-on-chip (SoC) management module to monitor and dynamically control processor core operating voltages. An SoC is provided with a plurality of processor cores, a plurality of voltage regulators, an internal management module, and at least one temperature sensor. The management module compares monitored temperatures to threshold values, and in response generates voltage commands. The management module sends the voltage commands to the voltage regulators. Each voltage regulator adjusts the operating voltage supplied to a corresponding processor core in response to the voltage commands.

An imaging directional backlight apparatus includes a waveguide and a light source array, providing large area directed illumination from localized light sources. The waveguide may include a stepped structure, and the steps may further include extraction features optically hidden to guided light, propagating in a forward direction. Returning light propagating in a backward direction may be refracted, diffracted, or reflected by the features to provide discrete illumination beams exiting from the top surface of the waveguide. Viewing windows are formed through imaging individual light sources and define the relative positions of system elements and ray paths. The imaging directional backlight apparatus further includes a control system for controlling the light output directional distribution in an automotive or vehicle environment in dependence on the output from sensors mounted on the vehicle. The control system is arranged to control the light output direction distribution of portable directional displays co-located with the vehicle.

A method for wireless communication combines OFDMA resource allocation and power control policies with cooperative relaying techniques. The techniques are preferably implemented in a dense wireless network of power-limited mobile devices assisted by mobile relay devices having superior power supplies. Preferably, MIMO beamforming techniques are used to further increase energy efficiency and spectral efficiency beyond the increases provided by ODFMA cooperative relaying.

A battery monitoring system is provided to monitor a battery stack having multiple cells connected in series. The monitoring system includes monitor modules to monitor respective subsets of the cells of the battery stack, each monitor module, in response to one or more control signals, measuring cell voltages of the respective subset of cells and providing at least one readout signal that represents the sampled cell voltages, the monitor modules being electrically connected in a stack such that each monitor module is referenced to the voltage of the respective subset of cells, and the control signals and the readout signal are connected through the monitor modules of the stack, and a system control unit to provide the control signals to the monitor modules and to receive the readout signals from the monitor modules.

An approach for is provided for adapting to a variety of link propagation conditions is disclosed. A source terminal generates a packet data burst that includes a header and an optional payload. The header is modulated using a default modulation scheme and is coded using a default coding scheme. A switch is configured to receive and to forward the packet data burst. A destination terminal is configured to demodulate the header using the default modulation scheme and the default coding scheme, and to examine the header to determine a particular coding scheme and a particular modulation scheme associated with the payload. The protocol can be applied to any radio communication system, particularly, to a satellite communication system with multiple satellite terminals.

A remotely full control device. The device uses a remote monitor to control and monitor computers on a LAN through a WAN to handle abnormal operations in any computer(s) on the LAN. The remotely full control device includes: a WAN connection interface; a LAN connection interface; a KVM input and output interface; an audio input and output interface; and a power control signal generator. The WAN connection interface goes online to a WAN to receive a control signal from a remote monitor. The LAN connection interface goes online to a LAN having multiple computers. The KVM input and output interface transfers and receives data from the multiple computers. The audio input and output interface transfers and receives signals from voice devices of the multiple computers, and the power control signal generator uses a Wake-On-LAN technique to wake up one or more assigned computers. The invention further includes an image input device to help the remote monitor monitoring the multiple computers.

An improved liquid crystal display (LCD) system that includes a user-selectable method for reducing the amount of electrical power consumed by the LCD. When a power-conservation mode is selected, power-conservation circuitry acts upon the pixel activation sequence as normally determined by the LCD driver. To minimize power consumption, a subset of the pixels otherwise to be activated are sent no power. The subset of no-power pixels may be a fixed percentage, such as fifty percent, or may vary according to the image being displayed. In either case, the pixel elements of the no-power subset may be alternated so as to minimize the impact of the power-conservation feature on the displayed image.

The present invention involves an intelligent electrical energy management system device. The device includes a power supply module (2), a control module, a memory module, an input module, a clock module (12) for providing a real-time clock, a current detection module (8) for detecting the current flowing in electrical equipments (91, 92, 93, 9n), and an electronic controlled switch. The memory module, the input module, the clock module (12), the output terminals of the current detection module (8), and the control terminal of the electronic controlled switch are connected to the data terminals of the control module respectively. An external power supply supplies power to the electrical equipments (91, 92, 93, 9n) via the electronic controlled switch and the current detection module (8). The power supply module (2) is connected to the external power supply and provides power to each module.

The embodiment of the invention discloses a method and device for lighting a screen and a terminal. The method is applied to the terminal provided with a folding display screen, and the folding display screen comprises two foldable screen areas. The method comprises the steps of when the folding display screen is in a screen extinguishing state, obtaining a triggering signal used for triggering lighting of the screen; if the folding display screen is in an outwards folded state, determining a visible screen area and a screen extinguishing screen area of the two screen areas; controlling the visible screen area to be turned from the screen extinguishing state into a lighted state and controlling the screen extinguishing screen area to keep the screen extinguishing state. On the condition that the folding display screen is in the outwards folded state, the terminal does not jointly light the two screen areas, instead, the terminal only lights the visible screen area, which is conductiveto saving the electric quantity of the terminal, and misoperations caused when a user touches displayed content in the screen area in the lighted state by mistake can be reduced.

The cooling system includes: a frame; a plurality of electronic devices disposed in the frame and operating or functioning independently from each other; fans disposed in the frame and supplying cooling air to the electronic devices; a temperature acquiring portion for acquiring the temperature of the cooling air; an air-flow resistance adjusting portion for adjusting the air-flow resistance to the cooling air; and a controller for controlling the fans and the each air-flow resistance adjusting portion. The controller determines each target cooling air volume required for cooling each electronic device to a predetermined temperature based on temperature information acquired by the temperature acquiring portion and heat generation information on each electronic device, controls each air-flow resistance adjusting portion to set the volume of cooling air to each target cooling air volume, and performs the drive control of the fans to set the volume of cooling air to the minimum necessary.

In a process, a power mode indicator is transmitted from a content server and is received by a Portable Communication Device (PCD). The indicator is indicative of a power mode potentially available to a circuit block in the PCD. The circuit block exhibits different levels of power consumption when operated in different power modes and is operated in the indicated power mode in response to the received power mode indicator. The content server may be a stream server. The circuit block may be operated in the power mode to receive/process a data stream.

A discontinuous reception method in a wireless communication system includes the following steps: in case of a continuous carrier aggregation, setting a common On Duration timer and/or a common Discontinuous Reception inactivity timer for a primary cell and each secondary cell; and in case of a discontinuous carrier aggregation, setting an independent On Duration timers and/or an independent Discontinuous Reception inactivity timers for the primary cell and each secondary cells. The discontinuous reception method realizes discontinuous reception of the carrier aggregation, thus saving power consumption of a mobile station.

A color signal processing device for generating image data to be displayed on a display device which represents a color by using at least four primary colors, includes an obtainer that obtains a color signal regarding three primary colors for image data composed of a plurality of pixels, a changer that changes a value of the obtained color signal regarding the three primary colors, and a converter that converts the changed color signal regarding the three primary colors into a color signal regarding four primary colors. When a predetermined region contains a color saturated pixel, the changer makes the value of the color signal of at least one color of the three primary colors smaller, for pixels contained in the predetermined region.

The invention provides a zoom lens, characterized by comprising, in order from an object side thereof,

• • a first lens group of positive refracting power,
  • a second lens group of negative refracting power,
  • a third lens group of positive refracting power, and
  • a fourth lens group of negative refracting power,
  • upon zooming from a wide-angle end to a telephoto end of the zoom lens,
  • a separation between the respective lens group changes,
  • a separation between the first lens group and the second lens group becomes narrow, and
  • a separation between the second lens group and the third lens group grows wide;
  • upon focusing from a focusing-on-infinity state to a close-range focusing state,
  • the fourth lens group moves in an optical axis direction; and
  • Conditions (1) and (2) are satisfied at the wide-angle end.

A low power rf control system includes a controller that operates at a low clock speed when an associated rf receiver is deenergized and a high clock speed when the controller energizes the receiver. The receiver can be on for a short period, off for a short period if no preamble pulses from a remote control device are received, on for a short period, and then off for a longer period until the next cycle. The receiver remains on to process a command signal when a preamble signal is detected. A DC-DC down converter can be used as a power supply for the receiver, and a SAW resonant circuit can be used as an IF oscillator for the receiver. An LC filter can be associated with the receiver for filtering the IF signal.

There is described a method for detecting a lift condition from an illuminated surface portion of an optical motion sensing device. According to a first embodiment, two different “loss-of-focus” thresholds are used. A first threshold is used when the optical pointing device is not moving, and a second threshold greater than the first one is used when the optical pointing device is moving. The optical device further requires means for detecting whether it is moving or not. According to a second embodiment, a dynamical loss-of-focus threshold depending on an average number of motion features that the surface exhibits to the sensor of the optical pointing device is used.

A combustor apparatus is provided, comprising a mixing arrangement for mixing a carbonaceous fuel with enriched oxygen and a working fluid to form a fuel mixture. A combustion chamber is at least partially defined by a porous perimetric transpiration member, at least partially surrounded by a pressure containment member. The combustion chamber has longitudinally spaced apart inlet and outlet portions. The fuel mixture is received by the inlet portion for combustion within the combustion chamber at a combustion temperature to form a combustion product. The combustion chamber further directs the combustion product longitudinally toward the outlet portion. The porous transpiration member is configured to substantially uniformly direct a transpiration substance laterally therethrough, about the perimeter thereof defining the combustion chamber and longitudinally between the inlet and outlet portions, toward the combustion chamber for buffering interaction between the combustion product and the porous transpiration member. Associated systems are also provided.

A work vehicle includes a driving wheel motor for driving at least one driving wheel, a working implement-related motor for driving at least one working implement, and at least one controller. The at least one controller sets, upon satisfaction of a predetermined condition set in advance, a relationship between vehicle speed of the work vehicle and working implement-related target rotational speed of the working implement-related motor to a working travelling cooperative relationship according to which the working implement-related target rotational speed is increased according to an increase in the vehicle speed at least within a predetermined vehicle speed range of the work vehicle, and controls the working implement-related motor to implement a working travelling cooperative mode in which the working implement-related motor is driven at the working implement-related target rotational speed based on the working travelling cooperative relationship.

A method and apparatus for changing a clock frequency in a system (10) comprising a plurality of synchronous integrated circuit chips (12, 14, 16), and a circuit (20) for implementing the frequency change. The method includes: detecting a change in processing requirements in one of the plurality of synchronous integrated circuit chips; notifying the plurality of synchronous integrated circuit chips that a clock frequency change is to occur; achieving a quiescent bus state in each of the plurality of synchronous integrated circuit chips; notifying the plurality of synchronous integrated circuit chips that the clock frequency change can occur; and changing the clock frequency of the plurality of integrated circuit chips.

The invention discloses an information processing method and an electronic device. The information processing method is applied to the electronic device. The method includes: displaying a voice control on the display unit, wherein the voice control corresponds to a voice recognition engine; when the voice recognition engine is in a working state, acquiring first voice input used for invoking a first application; based on the voice recognition engine, acquiring a first invoking instruction for recognition of the first voice input; responding to the first invoking instruction, invoking the first application; judging whether or not the first application satisfies a first preset condition; when the first application satisfies the first preset condition, generating a first identification corresponding to the first application; relating and displaying the voice control with the first identification on the display unit.

The invention provides a method and a device for tracing and locating a movable terminal. The method includes: when the movable device is arranged in a standby state, whether the standby time of the movable terminal device exceeds a first preset time or not is detected according to a preset first time interval; if not, then GPS is started and the current position information of the movable terminal device is transmitted to a preset receiving terminal; if not, then maintaining the standby state; when the standby state is released, then the movable terminal device indicates to input verification information; if the input verification information meets a preset condition, then the movable terminal device is normally used; if not, then the GPS is started and the current position information of the movable terminal device is transmitted to the preset receiving terminal.

An adaptive frame rate modulation system and method thereof are described. A frame processing unit is employed to receive a first frame and a second frame for dividing the second frame into a plurality of second block frames. A frame change detection unit compares the first block frames with the second block frames correspondingly for detecting the change status between the first and second frames. A timing generator classifies the second block frames of the second frame to construct a plurality of frame rates based on the compared results of the first and second block frames. The timing generator further modulates the frame rates of the second frames.

The invention provides a network searching method and a system after a coverage loss. The network searching method comprises the following steps of: after the coverage of a mobile terminal is lost, determining a frequency point to be scanned preferentially according to the probability of an occurrence scene of the coverage loss; and starting scanning and network searching from the frequency point to be scanned preferentially. In the method, the frequency point with a high probability of the occurrence scene of the coverage loss is scanned after the coverage loss to ensure that the mobile terminal can find a network as quick as possible and returns to a coverage area, so frequent meaningless frequency sweeps are not needed, and the mobile terminal not only can access to the network more quickly but also can save electric quantity and prolong the standby time.