747results about How to "Power optimization" patented technology

A remote monitoring and control system comprising synchronized wireless MESH technology for remote monitoring and control of utility grids (e.g., utility meters), commodity distribution networks, industrial equipment, and infrastructure including remote disconnection / connection and self-generating power.

A system and method for dynamically optimizing the performance of indoor distributed antenna systems communicate to user equipment is disclosed. The user equipment measures information describing the downlink signals such as the downlink data rates, the quality of the received signal, and the location of the user equipment. A service module collects this information and determines an optimized power level for each of the antenna units. The service module may optimize only one antenna unit power level or a subset of the antenna units within the distributed antenna system in a preferred embodiment. One or more of the antenna units then transmits downlink signals with the optimized power levels. The optimized power level may be less than the initial power level in a preferred embodiment. As a result, the performance of the indoor distributed antenna systems is enhanced.

A WCDMA system includes a Base Station (BS) transmitter, or forward transmitter and a pilot channel that transmits control signals between the BS and a Mobile Station (MS) to reconfigure their transmitter / receiver. Reconfiguration is performed according to the prediction of the channel attenuation and the threshold set at the BS or MS based on its channel power probability density function separated into three distinct equal probable regions. In one embodiment, Seamless Rate Change (SRC) / Transmitter Power Control (TPC) logic uses the predicted channel attenuation to signal both the transmitter and the receiver in a channel to reconfigure their transmit power level according to the power density function (pdf) of the channel power and threshold level. A transmission rate is reduced when the power level is below the threshold and increased when the channel power is above threshold. The pilot channel is used to signal the mobile station and the base station.

The invention features a flow-through capacitor system that achieves enhanced power efficiency by sequential control and actuation of at least two or more flow-through capacitor cells within the flow-through capacitor system. Alternatively or in addition, power efficiency is enhanced by integrating the purification stages of the system, for example, by placing more than one cell within a single cell casing. Preferably, integrated stage flow-through capacitors are controlled sequentially.

Spiral coils generate very powerful electromagnetic fields by operating with two different but simultaneous resonant behaviors. Quarter-wave resonance is established by adjusting the frequency (and wavelength) of a radiofrequency (RF) voltage source until the length of the spiral conductor is equal to ¼ of the wavelength of the alternating voltage. This generates an electromagnetic standing wave with at least one peak node and at least one null node. Inductive-capacitive (L / C) resonance is established by optimizing the thickness and width of the wire ribbon used to make the spiral coil. When inductance and capacitance are balanced, the current response will synchronize with the voltage input, creating in-phase behavior, minimal total impedance, and maximal power output. If two such coils are placed near each other, they will create an extremely powerful electromagnetic field between them, which can promote chemical and plasma reactions involving charged particles such as ions or plasma particles, possibly including nuclear fusion reactions.

A display unit has a brightness equal to that in a conventional black-and-white reflection type and the power consumption is small at a standby time, and bright color display of high quality can be produced and power consumption is small at the time of use. An information device having this display unit, such as a portable phone, also is provided. The display unit has a color light emitting means, a reflecting mean of external light and a light polarizing state modulating means. The display unit has a driving method switching means for switching color light emitting display and reflection display by on / off control of the light emitting means and switching control of a driving method of a display element.

A remote monitoring and control system comprising synchronized wireless MESH technology for remote monitoring and control of utility grids (e.g., utility meters), commodity distribution networks, industrial equipment, and infrastructure including remote disconnection / connection and self-generating power.

A storage medium recording a cell library having one or more cells that may be readable by a computer and may be used by the computer to design an integrated circuit. The one or more cells may have a physical dimension parameter and a channel width parameter. The physical dimension parameter may be a footprint of the one or more cells. The channel width parameter may have a minimum driver size and a maximum driver size. The channel width parameter may define a range within which a tool varies the channel width between the maximum driver size and the minimum driver size during a design flow of the integrated circuit based upon one or more power criteria without changing the footprint.

A business software application generation system and method are described.

A control system is provided for controlling the fueling system (402) of a combustion engine. The control system includes a sensing arrangement for measuring a plurality of engine and vehicle conditions (404, 406, 408, 410, 412) in real time. The control system also includes a fuel map that defines engine fueling parameters corresponding to engine operating conditions. The control system also includes a control module (102) that determines engine load from the sensed conditions, and controls the fueling parameters of the fueling system for optimized fuel consumption by selecting fueling parameters from the fuel map based on current engine load.

A proximity detector employs a capacitive sensor, having: at least one detection antenna including numerous capacitive proximity sensors which each include a measuring electrode, the antenna being positioned close to an object or body; electronic elements for exciting the electrodes and processing the distance measurement signals originating from the capacitive sensors; and digital elements of controlling the electronic elements and of calculating the distances between the electrodes and the body or object using the processed measurement signals. The detection antenna also contains a single guard for all of the measuring electrodes. Moreover, the electronic elements have, for each detection antenna, a floating or floating excitation capacitive bridge which co-operates with polling elements in order sequentially to measure the respective capacitances between each electrode and the object or body to be measured.

The invention relates to a method for preparing nitrogen-doped porous carbon nanofiber cloth. The nitrogen-doped porous carbon nanofiber cloth is prepared by adding a nitrogen-rich compound into an organic solution, electrospinning and subsequent carbonizing-activating, has a self-support structure, omits preparation steps of size mixing, coating and the like, needs no conductive agent or binder, and can be directly used as the negative electrode of a lithium ion battery. The electrochemical performance of the negative electrode material of the lithium ion battery is improved by doping nitrogen and activating and forming pores; compared with a commercial graphite lithium ion battery negative electrode material, the nitrogen doping porous carbon nanofiber cloth used as the negative electrode material of the lithium ion battery has simple steps for preparing the electrode, has higher specific capacity, good power performance and circulatory stability. The method also can be used as the electrode material of super capacitors and other novel batteries.

A power controller for applying power to an induction motor or similar AC load has a variable drive circuit for staring and switching a portion of the AC input line power. In one mode, the input line power is fed straight through to the load. In another mode, the AC waveform is reshaped to improve the power factor or to boost its RMS value, e.g., for brownout protection. In a further mode the output power can be provided at a different frequency from the input line power. Vector control increases efficiency through power optimization, with sensing of load requirements. Sensing of regeneration pulses at the commencement of a half cycle can be employed for direct sensing of motor speed or load.

A system and method of selecting air intake between 100% fresh air mode and 100% recirculated air mode for optimum heating / cooling performance, fuel economy and / or high voltage (HV) battery power consumption is disclosed. The system and method includes a partial recirculation control strategy in which the air inlet door is moved progressively to any position by taking into account cooling / heating loads and cabin fogging probability. As cooling / heating loads increase the air inlet door moves toward 100% recirculation mode. As fogging probability increases the air inlet door moves toward 100% fresh air mode. By selectively choosing a position between 100% recirculation and 100% fresh air, fuel economy and / or HV battery power consumption is optimized without compromising passenger comfort or causing fogging on interior glass surfaces. In cooling applications the compressor load is minimized and air conditioning performance is improved due to the reduced evaporator cooling load. The direct result of this improvement is increased fuel economy in the case of the internal combustion vehicle, reduced engine on time in the case of the hybrid electric vehicle (due to reduced HV battery power consumption), and reduced HV battery power consumption in the case of the hybrid electric vehicle (HEV) and the electric vehicle (EV). In heating applications, as the heating load is reduced the fuel economy of the internal combustion (IC) engine will be improved, the engine on time is reduced in the case of the HEV, and HV battery power consumption is reduced in the case of the EV.

There is provided a method and a device for recording optical data able to improve recording power setting during recording by means of PWM with a small number of pulses. During the test recording, using a period of a recording channel clock Tw as the minimum unit, marks having different mark lengths of n1·Tw and n2·Tw (n1<n2) are recorded with the same number of m (m<n) light emitting pulses, while successively changing the maximum power Pw of the recording signals. The recorded marks are reproduced and the mark lengths T1 and T2 are measured from the reproduced signals. The recording power can be set by evaluating the deviations D1=T1−n1·Tw and D2=T2−n2·Tw.

The invention discloses an energy management method for an isolated network running mode in a micro network based on a load interruption model. In the method, aiming at the isolated network running mode, the requirements of the micro network on maintenance of internal power balance and voltage stabilization are converted into economic indexes, the detailed load interruption model is created, and the power-on time guarantee is obtained through load bidding; and distributed power management is carried out by an energy storage unit model in view of economic and technical features at the same time. With the adoption of the energy management method, the running cycle is divided into a plurality of time periods, the load levels and the distributed power start-stop states of all the time periods are determined based on current prediction at first to guarantee power balance and enough power margin, then the distributed power and the energy storage unit are subjected to output adjustment based on short-term prediction to meet voltage and tidal current constraint. The error between the current prediction and the short-term prediction is removed through two layers of coordinated optimization models. The energy management method is suitable for the isolated network running energy management in a micro network system consisting of various energy storage equipments, loads and power supplies with multiple types and proportions.

The present invention provides a novel technique for Web-based asynchronous processing of synchronous requests. The systems and methods of the present invention utilize a synchronous interface in order to couple with systems that synchronously communicate (e.g., to submit queries and receive results). The interface enables reception of synchronous requests, which are queued and parsed amongst subscribed processing servers within a server farm. Respective servers can serially and / or concurrently process the request and / or portions thereof via a dynamic balancing approach. Such approach distributes the request to servers based on server load, wherein respective portions can be re-allocated as server load changes. Results can be correlated with the request, aggregated, and returned such that it appears to the requester that the request was synchronously serviced. The foregoing mitigates the need for clients to perform client-side aggregation of asynchronous results.

A system and method for dynamically optimizing the performance of indoor distributed antenna systems communicate to user equipment is disclosed. The user equipment measures information describing the downlink signals such as the downlink data rates, the quality of the received signal, and the location of the user equipment. A service module collects this information and determines an optimized power level for each of the antenna units. The service module may optimize only one antenna unit power level or a subset of the antenna units within the distributed antenna system in a preferred embodiment. One or more of the antenna units then transmits downlink signals with the optimized power levels. The optimized power level may be less than the initial power level in a preferred embodiment. As a result, the performance of the indoor distributed antenna systems is enhanced.

Several improvements to optimize aircraft power plant and aircraft operations are disclosed, as well as methods of using these improvements to reduce fuel consumption, gas emission, noise, aircraft weight, maintenance costs, operating costs, aircraft incident and accidents, and improving aircraft performance. The improvements consist of a power plant fitted with a front propulsor, core engine, and aft propulsor. The fan of each propulsor is separated mechanically from the core engine. The front fan is separated mechanically from the aft fan. The aft fan is driven by free turbine that is supplied by exhaust gas of the core engine. If the core engine fails, both propulsors operate and provide thrust and reversed thrust when needed. If one propulsor fails, the other propulsor of the same power plant operates and provides thrust and reversed thrust.

An exhaust gas system for an internal combustion engine, in particular, of a motor vehicle has two mufflers through which the exhaust gas is able to flow in a parallel fashion. A switching unit makes it possible to selectively convey the exhaust gas flow of the internal combustion engine only or almost exclusively through the first muffler, or only or almost exclusively through the second muffler, or through both mufflers in a parallel fashion. The two mufflers are realized differently with respect to their muffling effect and / or flow resistance.

Data encoded in packets modulated onto a carrier wave is transmitted between a base station and a transponder. Each packet includes a header section that contains at least a reference symbol and that serves for adjusting one or more transmission parameters, and a further section such as a data section. The transponder transmits data back to the base station through modulation and backscattering of the carrier wave. During the transmission of the header section by the base station, the transponder transmits transponder operating information relating to the processing of data to be received and / or transmitted by the transponder, by corresponding modulation and backscattering of the carrier wave. In response to and dependent on the received transponder operating information, the base station adjusts at least one transmission parameter, whereby the highest data transmission rate within the capabilities of the particular transponder can be achieved.

In one embodiment of the invention, a method of physical clock topology planning for designing integrated circuits is disclosed. The method includes reading an initial placed netlist of an integrated circuit design and a floorplan of the integrated circuit design, analyzing the integrated circuit design to determine potential enable signals to gate clock signals that clock the plurality of flip flops to reduce power consumption; simultaneously optimizing and placing the clock enable logic gates to gate clock signals to the plurality of flip flops; and minimizing timing variation of the clock signals to the plurality of flip flops.

Apparatus and methods are provided for managing the power or bandwidth consumed by a network of interconnected devices. The apparatus includes a service broker and a token processor disposed within one or more of the devices. The service broker monitors traffic over the network, and directs the one or more of the devices in the network to operate in a tokenized data mode. The token processor receives first tokenized data from the service broker and decodes the first tokenized data into first meaningful data. The token processor also encodes second meaningful data into second tokenized data for transmission to the service broker.

The present invention provides a novel technique for Web-based asynchronous processing of synchronous requests. The systems and methods of the present invention utilize a synchronous interface in order to couple with systems that synchronously communicate (e.g., to submit queries and receive results). The interface enables reception of synchronous requests, which are queued and parsed amongst subscribed processing servers within a server farm. Respective servers can serially and / or concurrently process the request and / or portions thereof via a dynamic balancing approach. Such approach distributes the request to servers based on server load, wherein respective portions can be re-allocated as server load changes. Results can be correlated with the request, aggregated, and returned such that it appears to the requester that the request was synchronously serviced. The foregoing mitigates the need for clients to perform client-side aggregation of asynchronous results.

A computer implemented method of detecting a fault in a system comprises the steps of executing at least three virtual machines, each virtual machine executing a same application software, in separated and isolated memory segments and in a dedicated core of a multi-core processor; the virtual machines being synchronized and concurrently executed by a common hypervisor; wherein non-faulty virtual machines provide an identical output message within a predefined time-interval; detecting a fault in an output of a virtual machine, the fault corresponding to a different output message of the faulty virtual machine. Developments include a distributed vote mechanism, pull / push mechanisms, association of output vote messages with a safety extension comprising identification information, virtual machine recovery using data context.

The invention relates to the technical field of lithium ion batteries, in particular to core-shell structured carbon for a cathode material of a lithium ion battery and a preparation method thereof, and the lithium ion battery taking the core-shell structured carbon as the cathode material and a preparation method thereof. The core-shell structured carbon comprises a hard carbon material serving as a 'core' and soft carbon 'shell' which is coated on the surface of the 'core'. On the one hand, the hard carbon material serving as the 'core' provides a large number of spaces for storing lithium and channels for lithium ions to move, and the energy density and power density of the material are improved, and on the other hand, the soft carbon 'shell' with a graphite structure ensures that the material has high coulombic efficiency and cycle performance, so that the lithium ion battery made of the core-shell structured carbon serving as the cathode material has high capacity, high power characteristic, high cycle performance and high first charge and discharge coulombic efficiency, the preparation method is simple, and the cost is low.

By controlling buried plate doping level and bias condition, different capacitances can be obtained from capacitors on the same chip with the same layout and deep trench process. The capacitors may be storage capacitors of DRAM / eDRAM cells. The doping concentration may be less than 3E19cm−3, a voltage difference between the biases of the buried electrodes may be at least 0.5V, and a capacitance of one capacitor may be at least 1.2 times, such as 2.0 times the capacitance of another capacitor.

The present invention relates to a method of controlling transmitting power level of a mobile station in CDMA communication system. This invention estimates a moving speed of a mobile station and changes a power control step size according to the estimated moving speed, thereby tracking power level control command, which is transmitted from a base station to compensate for the power variation of its received signals, quickly and precisely.

The invention discloses a wireless electric energy transmission system with a switchable resonance compensation topology and a control method thereof. The system comprises a direct current power supply, a high frequency inversion mechanism, a primary side compensation mechanism, an electromagnetic coupling mechanism, a secondary side switching mechanism, a high frequency rectification mechanism, a load, a primary side control mechanism and a secondary side control mechanism. The system is characterized in that according to a power supply characteristic needed by a load or difference of power efficiency output requirements, through controlling connection and disconnection of a bidirectional switch in the secondary side switching mechanism, topology structure switching is performed; and the system can work in three kinds of working modes which are constant current output, constant voltage output and high power and high efficiency output. The system has advantages that the system can flexibly switch system working modules according to the power supply characteristic needed by load power supply or a power efficiency output requirement so as to satisfy power supply requirements of various types of loads; single resonance compensation topology restrictions are effectively overcome and a system application occasion is widened.

Location profile is used as a way of optimizing power consumption of communication devices such as mobile handsets and smart phones which tend to have facilities for multiple wireless methods for communication. This is done by correlating the availability of the wireless signals to the specific zones in the user location profile. The method learns the wireless environment of each zone and subsequently while the device is detected to be in the same zone, intelligently prioritizes use of different communication methods for that zone, and turns off all unnecessary communication options, thereby reducing power consumption.