4810 results about "Stable state" patented technology

An etching apparatus 100 as the substrate processing apparatus is provided with a rotary arm 103 for carrying a substrate included in a lot, and process chambers 106 and 107 for carrying out etching to the substrate as product processing. The etching apparatus 100 is controlled by a host computer 200 in which a transportation recipe, a recipe for product processing and a recipe for dummy processing are registered. When a chamber neglecting time being each neglecting time of the process chambers 106 and 107 does not become time out, the host computer 200 discriminates that processing atmosphere in the process chambers used for etching to the lot is stable, omits the execution of the dummy processing, and executes etching to the substrate of the lot.

A system and method are disclosed for reducing reverse bias in an electrophoretic display. The system and method include the application of varying levels of voltages across an array of electrophoretic display cells of the electrophoretic display to move the cells towards a stable state in a driving cycle. In addition, the system and method disconnect the voltages from the electrophoretic display cells at a time duration prior to reaching step transitions of the voltages during the driving cycle. Pre-driving approaches apply a first pre-driving voltage at a first polarity to the display cells before driving the display cells with a second driving voltage at a second, opposite polarity. Varying the time duration and amplitude of the pre-driving signals produces further beneficial reduction in reverse bias.

A spray head for a faucet or the like has a wand body defining a flow path from an inlet to first and second outlets. Diverter seats are provided so a face seal on a diverter spool can direct flow to the first or second outlet. The spool is positioned by a trigger acting on cam surfaces formed on a toggle. A spring biases the toggle to one of two stable states. Movement of the spool by the trigger causes the toggle to change states so subsequent actuation of the trigger causes the spool to move in the opposite direction. The wand body also has a pause button that reciprocates in a chamber that is part of the flow path. The chamber includes a valve seat and the pause button has a spool having a face seal that is engageable with the valve seat to shut off flow through the spray head. A return spring causes separation of the pause button's face seal upon release of pressure on the pause button. The pause button's seals in the chamber are arranged to have equal diameters and thus provide balanced hydraulic forces on the spool.

A memory cell including information that is stored in the state of a magnetic bit (i.e. in a free layer, FL), where the FL magnetization has two stable states that may be canted (form an angle) with respect to the horizontal and vertical directions of the device is presented. The FL magnetization may be switched between the two canted states by the application of a voltage (i.e. electric field), which modifies the perpendicular magnetic anisotropy of the free layer.

A DC-to-DC converter having a transformer with a primary and a tapped secondary, two serial output filter inductors connected parallel with the secondary, a center output filter inductor connected between the secondary tap and serial output inductors, two serially connected switches connected in parallel with the two output inductors for receiving a signal to control operation of the switches during steady state and an output load connected between the serial connection of the serial output inductors and serial switching devices. The transformer primary side connected with double-ended primary-side topologies. The transformer secondary and output filers configured to form a current tripler rectifier, current quadtupler rectifier or current N-tuper rectifier. The output filter inductors evenly share output current resulting in reduction of current and thermal stress during high current application and the rectification topology has simple driving for synchronous rectifier application without increasing complexity of control and operation of primary-side topologies.

Geometric correction of rough wireframe models derived from photographs may include rectification of either a 2D or 3D original wireframe model of a roof structure, derivation of metadata from the original wireframe, in-plane normalization of the wireframe, extrusion into a “rough” 3D wireframe based on the normalized wireframe, and correction of the “rough” 3D wireframe. The correction and normalization may be an iterative process based on initial pitch values, metadata derived from the original or corrected wireframe models and defined constraints regarding relationships between roof portions or segments. The iterative process may repeat adjusting the wireframe model until the adjusting converges to a stable state according to the various defined constraints.

An optical element (22) comprises a material (27) thermally switchable between a first stable state and a second stable state different from the first state and a switching mechanism (28a-28c) for switching one or more selected areas of the material (27) between the first state and the second state thereby to change the transmissivity of one or more selected areas of the optical element (22). The optical element may be placed in an optical path through another component such as, for example, a display (21), reflector or backlight, such that the optical element may be controlled to change the optical properties of the component. The properties that may be changed include, but are not limited to, the display mode of a display (21), viewing angle range, brightness / luminance, and colour. For example, if the element is substantially non-transmissive for one state of the thermally switchable material, the thermally switchable material may be arranged to provide a parallax barrier, in one state. Thus a display (21) may be switched between a directional display mode, for example a 3D-mode or multi-view display mode, and a conventional 2-D display mode by putting the thermally switchable material into its appropriate state—when the thermally switchable material is put into the non-transmissive state the parallax barrier is enabled, and when the thermally switchable is put into another state the parallax barrier is disabled.

A method is provided for control of a direct-injection engine operated with controlled auto-ignition (HCCI) during load transient operations between modes of lean combustion low load (HCCI / Lean) and stiochiometric combustion medium load (HCCI / Stoich.). The method includes 1) operating the engine at steady state, within a homogeneous charge compression-ignition (HCCI) load range, with fuel-air-exhaust gas mixtures at predetermined conditions, for each speed and load, and controlling the engine during changes of operating mode between one to another of the HCCI / Stoich. medium load mode and the HCCI / Lean lower load mode by synchronizing change rates of predetermined controlled inputs to the current engine fueling change rate.

A method of creating and using an adaptive DMC type or other MPC controller includes using a model switching technique to periodically determine a process model, such as a parameterized process model, for a process loop on-line during operation of the process. The method then uses the process model to generate an MPC control model and creates and downloads an MPC controller algorithm to an MPC controller based on the new control model while the MPC controller is operating on-line. This technique, which is generally applicable to single-loop MPC controllers and is particularly useful in MPC controllers with a control horizon of one or two, enables an MPC controller to be adapted during the normal operation of the process, so as to change the process model on which the MPC controller is based to thereby account for process changes. The adaptive MPC controller is not computationally expensive and can therefore be easily implemented within a distributed controller of a process control system, while providing the same or in some cases better control than a PID controller, especially in dead time dominant process loops, and in process loops that are subject to process model mismatch within the process time to steady state.

Data representing application deployment attributes, network topology, and network performance attributes based on a reduced set of element attributes is utilized to simulate application deployment. The data may be received from a user directly, a program that models a network topology or application behavior, and a wizard that implies the data based on an interview process. The simulation may be based on application deployment attributes including application traffic pattern, application message sizes, network topology, and network performance attributes. The element attributes may be determined from a lookup table of element operating characteristics that may contain element maximum and minimum boundary operating values utilized to interpolate other operating conditions. Application response time may be derived using an iterative analysis based on multiple instances of one or more applications wherein a predetermined number of iterations is used or until a substantially steady state of network performance is achieved.

The invention discloses an oily diamond grinding liquid and a preparation method thereof, and belongs to the technical field of surface superfine grinding. The grinding liquid comprises the following components by weight percent: 0.001%-10% of diamond micro powder, 0.001%-20% of surface active agent, 0-20% of dispersant, 0-10% of pH value regulator, 0-10% of wetting agent and oil in balancing amount. The oily diamond grinding liquid is mainly applied to surface grinding and polishing of silicon carbide wafers, LED sapphire substrate slices, ceramic, optical fiber, dies, semi-conductor compound wafers and the like. By the use of the oily diamond grinding liquid provided by the invention, the polishing efficiency can be greatly improved; the dispersing performance is good; a uniform and stable state can be kept for a long time; the degree of finish of products polished with the oily diamond grinding liquid is high; the polishing effect is good; no ingredient harmful to human body is contained; the cleaning is easy; and the environmental protection is facilitated.

A current-mode switching regulator including at least: an inductor; a main switch for controlling the current flow through the inductor; and a feedback control circuit for operating the main switch cyclically and to vary a duty cycle of the main switch so as to substantially maintain an output voltage of the regulator at a desired level. The feedback control circuit further includes slope compensation circuitry adding slope compensation to a signal representing the inductor current prior to the slope compensated signal being compared to the fed-back output error voltage. The regulator further includes current limiting circuitry for controlling the main switch responsive to a current limit reference signal, the current limit circuitry including adjustment circuitry for adjusting the current limit reference signal in response to the duty cycle of more than one previous cycle so as to limit current in the inductor irrespective of the output voltage and to a value which, in the steady state, is substantially independent of the duty cycle.

A system and method are disclosed for reducing reverse bias in an electrophoretic display. The system and method include the application of varying levels of voltages across an array of electrophoretic display cells of the electrophoretic display to move the cells towards a stable state in a driving cycle. In addition, the system and method disconnect the voltages from the electrophoretic display cells at a time duration prior to reaching step transitions of the voltages during the driving cycle. Pre-driving approaches apply a first pre-driving voltage at a first polarity to the display cells before driving the display cells with a second driving voltage at a second, opposite polarity. Varying the time duration and amplitude of the pre-driving signals produces further beneficial reduction in reverse bias.

An illumination brightness and color control system and method therefor are provided, implemented in a time division manner. A single photosensor senses and samples a point light source for the luminous intensity signal value. Then, the luminous intensity signal value at each wavelength and a target brightness / color value are computed to acquire a corrected current value, and the corrected current value is fed back to a light source driver. Therefore, the brightness / color value of the diode is adjusted to be in a steady state.

A dielectric waveguide integrated plasma lamp (DWIPL) with a body comprising at least one dielectric material having a dielectric constant greater than approximately 2, and having a shape and dimensions such that the body resonates in at least one resonant mode when microwave energy of an appropriate frequency is coupled into the body. A dielectric bulb within a lamp chamber in the body contains a fill which when receiving energy from the resonating body forms a light-emitting plasma. The bulb is transparent to visible light and infrared radiation emitted by the plasma. Radiative energy lost from the plasma is recycled by reflecting the radiation from thin-film, multi-layer coatings on bulb exterior surfaces and / or lamp chamber surfaces back into the bulb. The lamp further includes two- or three-microwave probe configurations minimizing power reflected from the body back to the microwave source when the source operates: (a) at a frequency such that the body resonates in a single mode; or (b) at one frequency such that the body resonates in a relatively higher mode before a plasma is formed, and at another frequency such that the body resonates in a relatively lower order mode after the plasma reaches steady state.

A method for determining whether a quantum system comprising a superconducting qubit is occupying a first basis state or a second basis state once a measurement is performed is provided. The method, comprising: applying a signal having a frequency through a transmission line coupled to the superconducting qubit characterized by two distinct, separate, and stable states of differing resonance frequencies each corresponding to the occupation of the first or second basis state prior to measurement; and measuring at least one of an output power or phase at an output port of the transmission line, wherein the measured output power or phase is indicative of whether the superconducting qubit is occupying the first basis state or the second basis state.

A method is disclosed for modelling fluid flows in a fractured multilayer porous medium by accounting for the real geometry of the fracture network and the local exchanges between the porous matrix and the fractures at each node of the network, thus allowing simulation of the interactions between the pressure and flow rate variations in a well running across the medium. The method essentially comprises discretizing the fractured medium by means of a mesh pattern, with fracture meshes centered on nodes at the various intersections of the fractures with each node being associated with a matrix volume, and determination of the flows between each fracture mesh and the associated matrix volume in a pseudosteady state. The method can be applied in hydrocarbon production well testing.

The invention provides a low current grounding single phase earth fault diagnosis method, comprising: capturing A voltage to ground, B voltage to ground, C voltage to ground, neutral point current and entire waveform information of each zero sequence current from a steady state to a transient state then to steady state when neutral point voltage exceeds presupposed threshold; first diagnosing whether being single phase earth fault, PT fusing, ferro resonance, arc suppressing coil resonance overvoltage, or neutral point overvoltage disturbance caused by experiment; selecting lines for the earth fault. The inventive method makes full use of steady state information and transient information of electric network before and after fault, and judges the fault and selects lines according to the long term changing rule of the neutral point voltage, which is different from the traditional stable state line selecting method and the transient line selecting method, thereby being suitable for the neutral point unearth electric network and the neutral point arc suppressing coil earth electric network at the same time, and well adapts the condition of complex site, thereby ensuring fault diagnosis and correct line selection.

A device for sealing a puncture opening in a wall of a blood vessel may include a base frame including a first bi-stable material having a first stable state corresponding to a delivery configuration of the base frame, in which the base frame is retracted to have a relatively smaller overall profile, and a second stable state corresponding to a deployed configuration of the base frame, in which the base frame is extended to have a relatively larger overall profile. The base frame is sized to engage an interior surface of the blood vessel wall when in the deployed configuration. A sealing section is coupled to the base frame and includes a second bi-stable material having a first stable state corresponding to an initial configuration of the sealing section, in which the sealing section permits fluid flow, and a second stable state corresponding to a barrier configuration of the sealing section, in which the sealing section prevents fluid flow. The sealing section in the barrier configuration is sized to block fluid flow through the puncture opening when the base frame is in the deployed configuration.

A trail management system for a transport network comprises a database storing data describing each of a plurality of actual and intended / planned trails within a network. Each trail is described in terms of a state model, in which the trail is recorded as being in one of a plurality of stable states, e.g. ready for service, not ready for service, existing in the network but not fully recorded in the network management system, or assigned for deletion from the network. The trail data is modified by a set of automatic processes, by means of which a trail data may transition between stable states. Each trail data may adopt one of a plurality of sub-states, e.g. fully provisioned, incomplete, in conflict with another trail, inconsistent with another trail, unprovisioned, or unsupported by network resources. The network management system learns of actual existing trails within the network and checks for consistency of actual trails with stored trail data.

A computer has protected resources presenting threat vectors that malicious software can use to attack the computer. A security module has monitoring components that monitor the protected resources to detect malicious software. The security module detects if a protected resource enters a steady security state. In response to a protected resource entering a steady state, the security module selectively disables the components that monitor the protected resource, thereby conserving the computing resources utilized by the security module and freeing the computing resources for other tasks. If the resource exits the steady security state, the security module temporarily blocks access to the resource while it enables the monitoring components for that resource.

Disclosed herein are methods, systems, and apparatus for treating a medical condition in a patient using an implantable medical device (IMD). The IMD is capable of generating a first electrical signal for treating a medical condition, for example epilepsy. The first electrical signal relates to a long term therapy during a first time period in which there is no indication that the patient's brain is in an stable state, the first electrical signal being a microburst stimulation signal. The implantable device is also capable of generating a second electrical signal for treating the medical condition. The second electrical signal relates to a short term therapy during a second time period, in response to an indication that the patient's brain is in an unstable state. The second electrical signal in one example, may be a conventional stimulation signal.

A system and method are disclosed for reducing reverse bias in an electrophoretic display. The system and method include the application of varying levels of voltages across an array of electrophoretic display cells of the electrophoretic display to move the cells towards a stable state in a driving cycle. In addition, the system and method disconnect the voltages from the electrophoretic display cells at a time duration prior to reaching step transitions of the voltages during the driving cycle. Pre-driving approaches apply a first pre-driving voltage at a first polarity to the display cells before driving the display cells with a second driving voltage at a second, opposite polarity. Varying the time duration and amplitude of the pre-driving signals produces further beneficial reduction in reverse bias.

The present invention is a delay based model and in fact uses queueing delay as a congestion measure, providing advantages over prior art loss based systems. One advantage is that queueing delay can be more accurately estimated than loss probability. This is because packet losses in networks with large bandwidth-delay product are rare events under TCP Reno and its variants (probability on the order 10−7 or smaller), and because loss samples provide coarser information than queueing delay samples. Indeed, measurements of delay are noisy, just as those of loss probability. Thus, another advantage of the present invention is that each measurement of queueing delay provides multi-bit information while each measurement of packet loss (whether a packet is lost) provides only one bit of information for the filtering of noise. This makes it easier for an equation-based implementation to stabilize a network into a steady state with a target fairness and high utilization. In addition, the dynamics of queueing delay provides scaling with respect to network capacity. This helps maintain stability as a network scales up in capacity.

A method of using a semiconductor device having a plurality of external contact terminals formed of springy wires, usable in a stable state free from variation of contact voltage for a long period even if a contact terminal repeatedly makes contact several hundreds or thousands of times. A tip end of the external contact terminal is plated with individually, selectively removable multiple films, and the plated films are individually, selectively removed by an etching treatment, in accordance with the degree of contamination of the tip end of the external contact terminal, and then the external contact terminal is rinsed and rendered reusable.

The object of providing a non-volatile semiconductor memory that stands out by good scalability and a high retention time as well as ensures low switching voltages at low switching times and achieves a great number of switching cycles at good temperature stability is solved by the present invention with a semiconductor memory whose memory cells comprise at least one silicon matrix material layer with open or disturbed nanocrystalline or amorphous network structures and structural voids which has a resistively switching property between two stable states, utilizing the ion drift in the silicon matrix material layer. The memory concept suggested in the present invention thus offers an alternative to the flash and DRAM memory concepts since it is not based on the storing of charges, but on the difference of the electric resistance between two stable states that are caused by the mobility of ions in the amorphous silicon matrix material with an externally applied electric field.

A disk array controller reliably improves performance in RAID configurations without the need for a battery backup. Write completion interrupts are queued until a write cache flush has been performed and are then sent to a host system. States of ranges of disk addresses (activity bins) are stored in nonvolatile storage elements associated with the ranges. The states allow rebuild times to be reduced after power failures and drive failures. A range is in a Changing state if at least one of the addresses is the target of a write operation that has been initiated but not completed. The range is in a Stable state if no addresses are the target of an uncompleted write operation. Two additional states are used to identify ranges of disk addresses that have been zeroed or never been written to. The additional states allow substantial reductions in RAID volume creation times.

The invention discloses a dynamic power coordination control method for a battery energy storage system. The battery energy storage system comprises a plurality of power converters which supply power to a load and are connected in parallel for operation, and is characterized in that: the power converters connected in parallel for operation are divided into two types, and a master-slave control scheme is adopted, wherein one type comprises only one power converter which adopts a constant voltage constant frequency control mode and is called a master node, and the power converters of the other type adopt a constant power mode with a slight droop characteristic, and serve as slave nodes; generally, a power converter with a high capacity is selected to be the only one master node which is specified by an upper-layer monitoring system, and all the other power converters are the slave nodes; and under a stable state condition, active power and reactive power output by the power converters which serve as the slave nodes are set by a power instruction transmitted by the monitoring system, and the output power of the power converter which serves as the master node is dynamically regulated according to a load condition. The method adopting the master-slave control scheme has the advantages that: on the premise of sufficient power capacity, both the voltage stability and frequency stability of a micro-grid system are easily achieved, anti-load disturbance capability is high, and failure recovery time is short.

This magnetic element for writing by magnetic field or heat assisted spin transfer comprises a stack consisting of:a free magnetic layer, also called storage layer or switchable magnetization layer (51), of which the magnetization direction is switchable between two nonwrite stable states, both directed out-of-plane and substantially perpendicular to the plane of said layer, and of which the magnetization is spontaneously reoriented from substantially perpendicular to the plane to substantially in the plane under the effect of the rise in temperature during the writing;at least one reference magnetic layer (50, 55), called pinned layer, of which the magnetization is oriented substantially perpendicular to the plane of said layer;a nonmagnetic spacer (52) inserted between the two layers;means for making an electric current flow perpendicular to the plane of said layers.