7365 results about "Limit value" patented technology

A welding system including an arc monitoring, training, and control system is disclosed. The welding system includes a power supply, controller, and associated memory. When a weld is performed, the weld command and weld feedback parameters can be stored in the memory, along with associated alarm limit values. During subsequent welds, the input weld commands and actual feedback values can be compared to the established limits, and a fault signal provided to an operator or supervisor when the value exceeds the established limits. The fault signals can be used for training operators, as well as providing monitoring signals, and can be stored with weld data in a database for later analysis. In addition, collected weld data can be used to determine when to clean, repair, or replace consumables, including, for example, contact tips, wire drive liners, and drive rolls, and to monitor usage of wire and gas.

Provided is a wireless transmitter-receiver capable of suppressing undesirable power consumption and elongating the continuous operation time by operation of a user with the intention of controlling transmission power and also suitable to secure the “symmetry of communication”.The wireless transmitter-receiver decreases the upper limit value of transmission power by an operation of an operation means 114 and decreases the reception sensitivity in accordance with the decreased upper limit value of transmission power. Thereby, a user can determine the upper limit value of transmission power of the wireless transmitter-receiver and manage the transmission power to suppress power consumption and elongate a continuous operation time. Moreover, the wireless transmitter-receiver can eliminate the influence of radio frequency electromagnetic field on a human body. Furthermore, the degree of imbalance in the “symmetry of communication” can be minimized.

A PFM buck-or-boost converter is provided. The converter includes, inter alia, a hysteretic comparator, current sense circuitry, a logic circuit, drivers, current sense circuitry, a first buck switch, and a first boost switch. The current sense circuitry asserts signal Z if the current through the boost switch (from the load to the inductor) is greater than zero, and unasserts Z otherwise. Additionally, the current sense circuitry asserts signal I if the current through the buck switch is greater than a fixed current limit value, and unasserts I otherwise. The logic circuit employs the hysteretic comparator output, signal Z, and signal I to control the switches, and to determine whether to operate in buck regulation mode or boost regulation mode.

A contrast media injection system includes detects the absolute position of the syringe ram using a non-contact sensor. A series of magnets and Hall-Effect sensors may be used or an opto-reflective system. Illuminated knobs that are connected to the drive mechanism for the syringe ram rotate with the drive and provide visual feedback on operation through the illumination. Analog Hall-Effect sensors are used to determine the presence or absence of magnets that identify the type of faceplate being used. The faceplates include control electronics, connected to the powerhead through connectors, which may be interchangeably used by the two faceplates. The faceplate electronics include detectors for automatically detecting the capacity of pre-filled syringes. Additional features include using historical data to provide optimum pressure limit values during an injection protocol, a removable memory device for storing and transferring information such as injection protocols and injector statistics, and password protection of such protocols.

A non-volatile semiconductor memory device includes a memory cell array, a data hold circuit, and a controller A program control function applies a program voltage to a selected memory cell to let data shift from a first logic state to a second logic state. A program verify control function verifies that a programmed data of the selected memory cell shifted to the second logic state. An erratic program verify control function checks that a threshold voltage of a memory cell to be held in the first logic state does not exceed a third value set as an upper limit value of a variation of the first logic state. An over-program verify control function checks that a threshold voltage of the selected memory cell shifted to the second logic state does not exceed a fourth value set as an upper limit thereof.

A semiconductor processing system including a semiconductor processing apparatus and a gas supply apparatus for supplying a process gas into the semiconductor processing apparatus includes a control section configured to control an operation of a pressure adjusting mechanism for adjusting the pressure inside a vaporizing chamber. The control section is preset to cause the pressure inside the vaporizing chamber to fall within a predetermined pressure range with reference to a pressure detection value obtained by a pressure detector. The predetermined pressure range is defined by an upper limit lower than a first limit value, at which vaporization of the liquid material starts being inhibited due to an increase in the pressure, and a lower limit higher than a second limit value, at which vaporization of the liquid material starts being unstable and the pressure inside the vaporizing chamber starts pulsating movement due to a decrease in the pressure.

A displacement of a pedestrian is determined from his or her accelerations by detecting accelerations which is substantially non vertical, determining a characteristic feature in the detected accelerations correlated with a step frequency, determining the displacement on the basis of said determined characteristic.The acceleration data can be submitted to waveform analysis to determine an actualized time interval of an occurring feature, such a maximum values, from which it is determined whether the actualized time period falls within determined limit values. The currently detected characteristic feature is then determined as corresponding to a displacement step if the actualized time period falls within said determined limit value.By using non-vertical acceleration measurements, the invention can make it possible to distinguish between forward, backward, left and right stepping movements and take these into account for the navigation.

A battery voltage Ef of a fuel cell 1 is detected, and a current instruction value which transformed an electric power instruction value Pfc of the fuel cell is reduced at falling-down of the voltage Ef. A current limiter 8 makes the current instruction value a limit value at the time of the falling-down of Ef, and reduces the limit value according to the fall of Ef. For example, current instruction value is restricted so as to begin to reduce battery current IFC at voltage drop alarm level (first threshold value), and become zero at voltage drop protection level (second threshold value).

The apparatus reduces the amount of correction for noise value error, so as to reduce work needed for correction to ensure error avoidance, and to improve the freedom of layout design, and to reduce load on DA. Based on a timing chart of signal transfer on each wire, the last edge appearance timing in the signal waveform of a victim whose noise value exceeds a limit value is compared with the last edge appearance timing in the signal waveform of an aggressor, to evaluate the noise value error in the victim. The apparatus is used in static noise checking of cell arrangement and inter-cell wiring after such cell arrangement and inter-cell wiring are performed at design of integrated circuits such as LSIs.

This invention provides a system, method and apparatus for managing congestion on heterogeneous network communication links, the first communication link and second communication link being heterogeneous with respect to each other. The system, method and apparatus including a routing decision module, the routing decision module evaluating a queue of information packets scheduled for transmission across the first communication link to determine whether to generate a command signal to route a portion of information packets over the second communication link. The system, method and apparatus may further include a communication link threshold module, the communication link threshold module storing threshold limit values corresponding to a first communication link technology of the first communication link.

A method of activating a Multi-String inverter for photovoltaic generators (1a, 1b) of a photovoltaic plant (6), the Multi-String inverter incorporating on the input side a separate DC-DC converter (2a, 2b) for each generator string (photovoltaic generator) (1a, 1b) and each output of the DC-DC converters (2a, 2b) being connected in parallel and to an input of a DC-AC converter (3) and the DC-AC converter (3) being connected with an alternating current mains (4) for feeding into the mains aims at improving efficiency. This is achieved in that one or several electrical variables, namely input current, input voltage and / or input power are measured at each DC-DC converter (2a, 2b) and at least one of the DC-DC converters (2a, 2b) changing its operating condition as a function of this measurement when a limit value and / or a range is exceeded in such a manner that its power loss is reduced so that the energy yield of the photovoltaic plant (6) is increased.

Provided is a method of reducing fatigue resulting from viewing a three-dimensional (3D) image display. The method includes: obtaining low visual fatigue parameter information on a frame section including at least one frame of a received 3D image; obtaining disparity vector information on each frame of the 3D image; and determining a disparity minimum limit value and a disparity maximum limit value with respect to the 3D image.

Circuitry for monitoring operation of an optoelectronic device having a laser transmitter and a photodiode receiver includes analog to digital conversion circuitry for receiving a plurality of analog signals from the laser transmitter and photodiode receiver, converting the received analog signals into digital values, and storing the digital values in predefined memory-mapped locations within the optoelectronic device. Comparison logic compares one or more of these digital values with limit values, generates flag values based on the comparisons, and stores the flag values in predefined locations within the optoelectronic device. An interface enables a host device to read from and write to host-specified memory mapped locations within the optoelectronic device.

A method and system for identifying clusters of similarly-configured computers. The method, for example, comprises gathering system and business configuration information values from a set of computers. Next, at least a portion of the system and business configuration information values gathered from the set of computers is analyzed along with the numbers of computers that are configured in various ways. Then, using the result of the analysis as a guide, logical expressions of configuration information values are selected for use as definitions of one or more clusters of similarly-configured computers, the selection process generally maximizing the number of computers included within each cluster and also generally maximizing the number of configuration information value specifications included within the definition of each cluster. Then, for one or more clusters so defined and selected, one or more statistics or limit values are generated from one or more configuration information values or both gathered from the subset of computers included in the one or more clusters.

A fuel separation apparatus includes a fuel tank storing the material fuel fed to a separation membrane, a fuel tank storing a separated low-octane fuel, and a fuel tank storing a separated high-octane fuel. An electronic control unit of the separation apparatus calculates the flow rate (amount of formation) of the high-octane fuel flowing into the high-octane fuel tank based on a change in the liquid level in the tank and on the amount of fuel fed to an engine from the tank, and so judges that an abnormal condition is occurring due to the breakage of the separation membrane when the amount of forming the high-octane fuel is larger than a predetermined upper limit value and that an abnormal condition is occurring due to a drop in the function of the separation membrane when the amount of formation is smaller than a predetermined lower limit value.

In a method for diagnosis and treatment of a patient with a tumor relating to prostate cancer, the following steps are implemented. A differential diagnosis of prostate cancer versus prostatitis and / or BPH is conducted on a patient using a cost-effective diagnosis method. If prostate cancer is diagnosed in the patient using a cost-effective measurement method, a characteristic value for the tumor aggressiveness of the prostate cancer is determined. A watchful waiting treatment is implemented with the patient given a characteristic value below a predeterminable first limit value. The size and position of the tumor is determined using a cost-effective method given a characteristic value above the first limit value. A cost-effective ultrasonic theranosis or a conventional therapy is conducted for a size below a second predeterminable limit value. The presence of metastases in the patient is checked, with a cost-intensive method generating image information, for a size above the second limit value. A metastasis treatment is implemented in the event that metastases are present. In the event that no metastases are present, a tumor treatment based on the aforementioned image information generated is implemented.

A graphical user display for providing real-time process information to a user for a process that is operable under control of one or more process variables is described. The graphical user display includes one or more graphical devices with each graphical device corresponding to a process variable. At least one graphical device for a corresponding process variable includes a gauge axis and at least one pair of high and low limit elements displayed on the gauge axis is representative of high and low process limit values for the corresponding process variable. A graphical shape displayed along the gauge axis is representative of the current value of the corresponding process variable relative to the process limit values. A computer implemented method for providing the at least one graphical device is also provided.

A non-volatile memory system comprises a non-volatile memory and a memory controller controlling the non-volatile memory. The non-volatile memory has a pseudo pass function of returning a pass as a status even if a bit error reaching allowable number of bits occurs after at least one of a write or erase sequence is completed. The memory controller has an allowable bit change function of changing the upper limit value of the allowable number of bits.

The method of controlling battery current limiting controls maximum charging and discharging current values according to the state of charge of the battery. The method of controlling current limiting integrates battery charging and discharging current to compute a first state of charge, determines first charging and discharging current limit value candidates from that first state of charge, computes a second state of charge based on battery voltage, and determines second charging and discharging current limit value candidates from that second state of charge. Further, the method takes the smaller of the first and second charging and discharging current limit value candidates as the charging and discharging current limit values for charging and discharging the battery.

Information indicative of disk-applicable recording speeds is incorporated in lead-out start time information within ATIP information that is recorded in pre-grooves located in a lead-in area of an optical disk. Once the optical disk is inserted in an optical disk recording device, the lead-out start time information is read out, so that recording is performed on the optical disk after a recording speed is automatically set to a highest settable speed value within a range specified by the read-out lead-out start time information. This arrangement can reliably prevent recording at speeds beyond predetermined limit values unique to the optical disk.

An active noise control system prevents a continuous muffled sound from being generated as an abnormal sound under a high sound pressure from a speaker when a microphone as a sound detector is covered, and reduces noise immediately when the microphone is uncovered. A first threshold value as an upper limit value and a second threshold value as a lower limit value are provided for the filter coefficient of an adaptive notch filter. When the filter coefficient is greater than the first threshold value, a control sound is faded out according to a forgetting process. When the filter coefficient is smaller than the second threshold value, an adaptive control process is resumed. Even if the microphone is covered, the filter coefficient does not exceed the first threshold value as the upper limit value.

A method and an arrangement for controlling a drive unit are suggested wherein a maximum permissible value of an output quantity is determined. This maximum permissible value is compared to the actual value and, when the permissible value is exceeded by the actual value, reaction measures are initiated. The maximum permissible value is filtered at least in one operating state in accordance with filter means including a filter and a dead zone member. Furthermore, the maximum permissible value is continuously reduced in dependence upon the approaching of at least one quantity to a limit value. This quantity represents an operating state.

A brake apparatus for a vehicle generally sets an upper limit value of regenerative braking force to the maximum value of the regenerative braking force which can be generated at the present. In the case of a front-wheel-drive vehicle, the total braking force, the sum of front-wheel braking force (front-wheel hydraulic braking force+regenerative braking force) and rear-wheel braking force (rear-wheel hydraulic braking force), is rendered coincident with a target braking force corresponding to a brake pedal depressing force, and the regenerative braking force is set to a largest possible value equal to or less than the upper limit value. As a result, the regenerative braking force can be larger than front-wheel-side target distribution braking force. The upper limit value is decreased from the maximum value by an amount corresponding to the degree of easiness of occurrence of a locking tendency at the driven wheels (front wheels).

The invention discloses an internal storage management method and device which are used for resolving the problems that under an internal storage management mechanism of an existing operating system, when internal storage resources occupied by application programs operating on the background are recycled by the system, a user needs to switch the application programs to the foreground to operate, longer loading time is needed, and user experience is reduced. The method comprises the steps that the situation that the utilization rate of the internal storage in the system exceeds a set upper limit value is determined; according to current priority information of the application programs, at least one application program is closed from the application programs operating on the background, and internal storage resources corresponding to the at least one application program are released to enable the utilization rate of the internal storage of the system to be less than or equal to the upper limit value; the current priority information of the application programs comprises the use frequency of the application programs and / or the moment when the application programs are used for the last time.

A vehicle steering control device which prevents overshoot or a phase delay of a vehicle position from a target position when an actuator of a steering mechanism is controlled so that an integral control reduces a positional deviation of a vehicle from the reference position of a traffic lane. An FB control unit (60) which calculates a corrected steering assist torque (Tb) of a motor so as to reduce a positional deviation (Yd) and an angular deviation (Ah) includes an integral element determination unit (64), which determines an integral gain (Ki), by which the positional deviation (Yd) is multiplied in an integral gain operation unit (62), according to the positional deviation (Yd) and which determines a limit value (Icnt_lmt) of an integral controlled variable (Icnt) according to the positional deviation (Yd), and an integral controlled variable limiting unit (63) which limits the integral controlled variable (Icnt) to within a range set by the limit value (Icnt_lmt) and outputs the current integral controlled variable (Icnt_rel).

The invention discloses an intrinsically safe inerting protection method and an intrinsically safe inerting protection device for an oil storage tank, relates to a method and a device for active fire and explosion prevention of the oil storage tank, and aims to solve the problem of fire and explosion prevention of the oil storage tank. The method comprises the following steps: a, performing inerting on each oil tank in sequence to ensure that each oil tank achieves an inexplosive condition, namely, the oxygen concentration of gas in the tank is lower than 10 percent; b, detecting the pressure of a pipe network for supplying inert gas to the oil tank, and supplying the inert gas to the pipe network and inputting the inert gas to the oil tank through the pipe network if the pressure is lower than a set lower limit value; c, detecting the pressure of the pipe network for supplying the inert gas to the oil tank, emitting the inert gas in the pipe network if the pressure exceeds a set upper limit value; and d, detecting the oxygen concentration in the pipe network for supplying the inert gas to the oil tank, and repeating the step a if the concentration exceeds the set upper limit value. The device comprises a buffer device, a breathing pipe network, a first pressure transmitter, a second pressure transmitter, an online oxygen analyzer and an electric control device.

PCT No. PCT / FI97 / 00359 Sec. 371 Date Dec. 4, 1999 Sec. 102(e) Date Dec. 4, 1999 PCT Filed Jun. 9, 1997 PCT Pub. No. WO97 / 48026 PCT Pub. Date Dec. 18, 1997A method and a valve apparatus for surveying the condition of a control valve. The position of the valve (101) is adjusted by means of an actuator (103) controlled by an electropneumatic positioner (104) and operated by means of pressure medium. The operation of the valve is monitored by sensors (109, 110, 107) that read the readings from the control signal, the input pressure of the positioner, the difference between the input and output pressure of the actuator, and the position of the valve. A fault causing a deviating reading will be located by using the readings given by the sensors and deduction rules stored in the microprocessor of the actuator. In an initial situation, when the valve is in balance state, the readings given by the sensors are stored at least from the control signal, valve position and the difference between the input and output pressure of the actuator. When the operation is continued, the readings given by the sensors are compared with the readings of the initial situation. If the deviations exceed certain limit values and remain there continuously for a certain period of time, a fault message will be given that indicates the location of the fault.

A protecting circuit monitors a voltage of a secondary battery and supplies the signal to permit a discharge to a gate terminal of a discharge control FET when the voltage is equal to or more than a lower limit value in a rated voltage range. When the discharge control FET receives this signal, it is connected and passes a discharge current. In the other cases, it shuts off the discharge current. Further, when the voltage is equal to or more than a predetermined value, a signal of a voltage of a battery voltage or more is supplied from a voltage converter to the gate terminal. When the voltage is equal to or less than an upper limit value in the rated voltage range, the protecting circuit supplies the signal to permit a charge to a gate terminal of a charge control FET. Further, when the voltage is equal to or more than a predetermined value, the voltage output from the voltage converter is supplied to the gate terminal. A battery pack in which by applying the voltage of the battery voltage or more to the gate terminal, the discharge control FET and the charge control FET are controlled and an energy loss is suppressed to the minimum is provided.

A device for generating an artificial constriction in a gastrointestinal tract includes a band, which can be placed annularly about a particular portion of the gastrointestinal tract, having a fillable hollow volume, and a closure device for connecting end regions of the band placed annularly about the portion of the gastrointestinal tract. The closure device is a safety closure, which, at a tear-off tension exceeding a limit value, opens free of destruction, and which can be closed again. This limit value of the tear-off tension is in the range between 20 and 60 N, and preferably between 30 and 50 N.