87results about How to "Protection operation" patented technology

Higher overall etch rate and throughput for atomic layer removal (ALR) is achieved. The reaction is a self-limiting process, thus limiting the total amount of material that may be etched per cycle. By pumping down the process station between reacting operations, the reaction is partially “reset.” A higher overall etch rate is achieved by a multiple exposure with pump down ALR process.

Exemplary embodiments provide an apparatus, system and method for power conversion to provide power to solid state lighting, and which may be coupled to a first switch, such as a dimmer switch. An exemplary system for power conversion comprises: a switching power supply comprising a second, power switch; solid state lighting coupled to the switching power supply; a voltage sensor; a current sensor; a memory; a first adaptive interface circuit to provide a resistive impedance to the first switch and conduct current from the first switch in a default mode; a second adaptive interface circuit to create a resonant process when the first switch turns on; and a controller to modulate the second adaptive interface circuit when the first switch turns on to provide a current path during the resonant process of the switching power supply.

An improved electrical pump is first provided for use in a wellbore. The pump comprises a stator and a stator housing, and an armature and an armature housing. The stator housing and the armature housing define concentrically nested tubular bodies. The armature housing is configured to permit production fluids to flow therethrough. In one aspect, the stator and armature are assembled in connectible and interchangeable sections called “modules” that can be attached in series. In one aspect, the electrical operation of coils within the stator is protected from individual coil short-circuiting or failure by wiring them in parallel, rather than in series. In addition, each module may be wired in parallel. In this way, a failure of one stator module will not result in the failure of another stator module. In an embodiment of the present invention, the valves of the pump are capable of being retrieved by a wireline, without pulling the entire production string. A method for using a plurality of electrical pumps is also provided. The configuration of the electrical pumps allows multiple linear pumps to be placed in series with the production tubular member. Alternatively, a rotary pump design is provided which allows multiple rotary pumps to be placed in series with the production tubular member.

The fuel cell vehicle, includes a fuel cell generating electricity by an electrochemical reaction of hydrogen and oxygen; an accessory for the fuel cell; and a fuel cell system box mounted on a vehicle body and housing the fuel cell and the accessory, wherein the fuel cell system box is formed in a vessel shape which has a bottom wall, a first side wall, and a second side wall, the first side wall supporting at least one pipe through which a fluid supplied to the fuel cell flows, and the first side wall is constituted of a material having a specific gravity that is greater than that of the bottom wall and the second wall.

Systems and methods for generating high velocity mass air flows are disclosed. High velocity mass air flow (air charging) devices are needed in a variety of research, industrial, commercial, and consumer applications. The exemplary systems and apparatus described incorporate an electric motor subassembly, an air effector subassembly, a highly intelligent apparatus controller subassembly (and interfaces), and linked sensors, connectors, and wiring. The exemplary method described includes the operational apparatus controller subassembly (e.g., elements, logic, and behavior) that controls the entire apparatus' functions and interactions.

An information processing apparatus switches between an Operating System 1 and an Operating System 2 during operation and comprises: a storing unit including a first area storing data managed by OS1, a second area storing a reset handler containing instructions for returning to OS2 and for branching to OS2, and a switching unit that switches connection/disconnection of the first area with outside; a table storing unit storing information showing the reset handler's position; a CPU having a program counter and executing an instruction at a position indicated by positional information in the program counter; and a management unit that, when instructed to switch from OS1 to OS2 while the apparatus is operating with OS1, instructs the switching unit to disconnect the first area and the CPU to reset. When instructed to reset itself, the CPU initializes its state and sets the reset handler positional information into the program counter.

Methods and apparatus for content protection in a wireless network. A method is provided for operating a protection system to protect an application from unauthorized distribution, wherein the application will fail to operate on a device that is outside a predetermined operating region. The method includes associating a geographic identifier with the application, wherein the geographic identifier identifies the predetermined operating region, and downloading the application and the geographic identifier to the device. The method also includes receiving a request to execute the application on the device, wherein the request includes the geographic identifier, and determining a device location. The method also includes comparing the device location with the predetermined operating region identified by the geographic identifier, and preventing the application from executing when the device is outside the predetermined operating region.

In order to protect semiconductor switching-devices employed in an H bridge circuit against an over-voltage without using a special protection circuit, a control circuit outputs a control signal to a driving circuit for driving the H bridge circuit in order to turn off FETs serving as the semiconductor switching-devices when an over-voltage detection circuit detects the over-voltage applied to the H bridge circuit.

An apparatus for reducing the power consumption of a PFC-PWM power converter is described. The apparatus includes a control terminal used to detect a line-input voltage and to control a PFC signal and a PWM signal. The apparatus further includes a PFC power-manager and a PWM power-manager. The PFC power-manager of the PFC controller determines a PFC-reference voltage for an error amplifier of the PFC controller. The PFC-reference voltage is generated in response to the voltage at the control terminal. The PFC power-manager will disable the PFC signal whenever the voltage at the control terminal drops below a low-voltage threshold voltage. The PWM power-manager will disable the PWM signal whenever the voltage at the control terminal drops below a programmable threshold voltage. Furthermore, the PWM power-manager will pull the voltage at the control terminal low to disable the PFC circuitry during light-load and zero-load conditions.

A method and system usable in sensor networks for handling memory faults is disclosed. In order to protect the operating system of a sensor node, coarse-grained memory protection is provided by creating and enforcing an application fault domain in the data memory address space of the sensor node. The data memory accessed by the application modules is restricted to the region (which defines the application fault domain) within the data memory address space. The application modules are prevented from accessing memory outside the application fault domain through software-based run-time checks. The state belonging to the operations system is maintained outside of the application fault domain, and is thus protected from memory corruption from any application module. In order to ensure that an application module does not operate on a corrupted state, fine-grained error detection and recovery is provided within the application fault domain. Any corruption of memory within the application fault domain is detected by a run-time memory integrity verifier implemented in the operating system kernel. Recovery involves purging the corrupted state and restarting only the affected application module to operate on an uncorrupted state.

The invention provides an over current measurement circuit, which is connected with the switch node of a low order field transistor of a step down converter. The over current measurement circuit comprises a voltage generation circuit and an operational amplifier, wherein the voltage generation circuit generates a reference voltage which is automatically adjusted according to temperature change, and comprises a voltage input end and a thermal sensitive resistor; the voltage input end provides a voltage; the thermal sensitive resistor is connected with the voltage input end for generating divided voltages of the voltage input by the voltage input end; the divided voltages automatically adjust according to temperature change; the voltage input by the voltage input end forms a reference voltage after voltage division. The operational amplifier comprise two inputs, wherein one input end is connected with the voltage generation circuit and the other input end is connected with the switch node of a low core field transistor of a step down converter. The over current measurement circuit can prevent the current limit or protective value set by step down converters from being affected by temperature.

A switching regulator control circuit is used in a switching regulator that converts an input voltage into an output voltage by the switching of a switching device, and generates a switching signal for controlling the ON/OFF operation of the switching device. The switching regulator control circuit has a fault detector and a fault protector. The fault detector detects, based on the duty ratio of the switching signal or a variable correlated to it and included in a control signal used to generate the switching signal, a fault state where the duty ratio falls outside the normal modulation range. The fault protector stops the switching of the switching device when the fault detector detects a fault state.

The invention discloses a trachea cannula tooth cushion. The trachea cannula tooth cushion comprises an upper tooth cushion body and a lower tooth cushion body. The upper and lower tooth cushion are connected through arch-shaped arms and air bags on the two sides, and a trachea cannula is placed between the upper and lower tooth cushions, penetrates through the upper and lower tooth cushions and enters the airway of a patient. According to the conditions of the patient, the oral cavity of the patient can be expanded by inflating the air bags, and operation is convenient. The tooth cushion is in a U shape, conforms to the oral cavity structure of the human body, and can easily protect teeth, gingivae and mouth mucosa of the patient. Sputum suction pipes are installed on the tooth cushion, secreta can be sucked out, and water or medicine can also be injected. The tooth cushion is fixed through a flat fixing band, fixing is firm, and the comfort degree of the patient is improved.

A fluid dispersion assembly comprises a diffusion unit disposed in fluid communication with a fluid container, the assembly being powered by a compressed air source. The diffusion unit at least partially defines a diffusion chamber, and includes a diffusion assembly containing an atomizer assembly which, in combination with the diffusion chamber, generates a fluid dispersion from a mixture of compressed air and an operative fluid, for example, fragrant oils, essential oils, odor neutralizers, disinfectants such as triethylene glycol, air sanitizers, etc. The diffusion unit may include a suppressor assembly and/or a silencer assembly to reduce the amount of noise generated during operation. In one alternate embodiment, a modified diffusion chamber is provided which functions as a suppression chamber, thereby reducing the noise generated during operation of the assembly.

Systems and methods are described for providing security through sessions. In an implementation, a method includes initiating a session, by an operating system, in which operating system services are executable and initiating another session, by the operating system, in which a user-interactive application is executable.