151 results about "Arithmetic expressions" patented technology

Techniques for performing non-event pattern matching on continuous event streams using variable duration. The duration value used in non-event pattern matching can be variable. Accordingly, a first pattern match candidate can have a different associated duration from a second pattern match candidate for matches arising from events received via an event stream. In certain embodiments, the duration for a candidate pattern match may be based upon one or more attributes of an event that started the candidate pattern match or based upon an expression (e.g., an arithmetic expression) involving one or more attributes of the event.

An LCD device according to the present invention has: an LCD panel; an operation and correction circuit configured to perform a correction operation with respect to an input gray-scale data of a target frame image by using an arithmetic expression to generate an output gray-scale data; a data line driver configured to drive the LCD panel in accordance with the output gray-scale data; and a correction data calculation circuit configured to generate a correction data that specifies a relationship between the input gray-scale data and the output gray-scale data of the target frame image, depending on the input gray-scale data of the target frame image or an input gray-scale data of a precedent frame image followed by the target frame image. The operation and correction circuit determines coefficients of the arithmetic expression from the correction data.

A method and system for versatile automated commissioning tools providing an automated process for calculating commissions on a reoccurring basis under a plurality of user defined commission plans. In one illustrative embodiment, the automated process entails receiving a request to calculate commissions for a specific instance and then identifying the commission plans having commissions owing and calculable for the specific instance. Once the plans have been identified, the process next comprises importing the appropriate sales records from an external source and calculating commissions for recipients named in connection with the commission plans. To calculate the commissions for a commission plan, one or more user defined queries specific to the commission plan are applied to the imported sales records to manipulate the sales records and to extract the desired sales figures. After extraction, the sales figures are dynamically incorporated into an arithmetic expression previously defined by the user whereby the commission for each of the recipients is calculated. Once the commissions have been calculated for the specific instance, the commissions for another specific instance may be calculated with little or no further input required from the user. In another illustrative embodiment, the user defines the terms and criteria by which the commissions will be calculated through a graphical user interface. The graphical user interface allows an unsophisticated user to define the parameters of the various aspects of the present invention without an extensive knowledge of a programming language. The parameters entered by the user are then saved in a table format, thereby allowing them to be accessed easily and efficiently. Notably, a three-tiered architecture allows the deployment of the present invention in a single computer setting or a networked environment.

To provide a radiation thermometer capable of measuring a body temperature more accurately than it has been conventionally possible, by taking into account an infrared ray that is emitted from a front end of the probe portion and reflected from an eardrum or an external acoustic opening. The radiation thermometer has body temperature calculating means for calculating a body temperature according to a predetermined arithmetic expression based on an emissivity when the emissivity of the eardrum or the external acoustic opening is less than 1, an output of infrared-ray detecting means and an output of temperature-measuring means.

There is provided a turbo chiller that can be operated at high efficiency within an adequate chilling capacity range even when the cooling water temperature changes during the operation. The adequate chilling capacity range is obtained by using a flow coefficient and a pressure coefficient at a specific operating point of a turbo compressor as well as a predetermined coefficient to determine an arithmetic expression representing the relationship between a head and a chilling capacity, using a chilling capacity that can lead to a substantially highest coefficient of performance at a single head to obtain the predetermined coefficient as an optimum coefficient, computing an adequate operation coefficient range having a predetermined range and including the optimum coefficient, and substituting the adequate operation coefficient range and a head at the time of operation into the arithmetic expression.

An engine control apparatus which may be employed in automotive vehicles. The engine control apparatus is equipped with a controlled variable arithmetic expression which defines correlations between combustion parameters associated with combustion conditions of an engine and controlled variables actuators for an operation of the engine. This eliminates the need for finding relations of optimum values of the controlled variables to the combustion parameters through adaptability tests, which results in a decrease in burden of an adaptability test work and a map-making work on manufacturers. The engine control apparatus also works to learn or optimize the controlled variable arithmetic expression based on actual values of the combustion parameters, thereby avoiding undesirable changes in correlations, as defined by the controlled variable arithmetic expression, due to a change in environmental condition.

A distance-measuring imaging device includes a light source that applies light according to timing of a light emission signal; a solid-state imager that performs, for an object, exposure according to timing of an exposure signal, and generates raw data corresponding to an exposure amount of the exposure; a signal amount comparator that determines a magnitude relationship in signal amount in the raw data; and a distance calculator that generates and outputs a distance signal based on a determination result. The solid-state imager accumulates, in each of different signal accumulation regions for accumulating signals detected in a same pixel, a signal by exposure in an exposure period that differs in exposure signal timing. The signal amount comparator determines the magnitude relationship between the signals accumulated in the signal accumulation regions. The distance calculator calculates the distance to the object using an arithmetic expression selected depending on the determination result.

An optimization apparatus is capable of improving the execution efficiency of a loop that includes a loop carry dependency between consecutive iterations of the loop. For example, a value resulting from one iteration is used in an immediately following iteration. When the arithmetic expression “a[i+1]=a[i]*3+2;” is included in a loop body, and a value resulting from the arithmetic expression “a[i+1]=a[i]*3+2;” in one iteration is used in a following iteration, execution delays occur in pipeline processing of the loop. Here, the arithmetic expression “a[i+1]=a[i]*3+2;” is transformed into the arithmetic expression “a[i+4]=a[i]*81+80;” to expand the dependency distance. By doing so, the execution delays can be decreased.

A method of disassembling object code to generate the original source code is discussed, together with a lister for performing the disassembly. The object code has relocation sections associated with some of the section data. For each location in the section data the lister determines if there is an associated relocation instruction and if there is, the lister derives certain additional information concerning the section data. The lister then generates the original source code, including the additional information. One example of the additional information is an arithmetic expression used to calculate a value in a relocation instruction. The set of relocations associated with the location of the instruction are read in turn by the lister and by using an expression calculator and an expression stack, the original arithmetic expression can be reconstructed.

A second computing section executing a compensation control is provided with a third computing section computing a d-axis correction amount, and a fourth computing section computing a q-axis correction amount. The respective computing sections compute a d-axis correction coefficient and a q-axis correction coefficient corresponding to an rotation angle by referring to a map. The respective computing sections compute the d-axis correction amount and the q-axis correction amount on the basis of an arithmetic expression constituted by a first term obtained by multiplying a correction coefficient relating to an object axis by a q-axis current command value and a second term obtained by multiplying a correction coefficient relating to an auxiliary axis by a d-axis current command value. The second computing section computes a d-axis current command value and a q-axis current command value which do not generate a torque ripple caused by a distortion of an induced voltage waveform, by adding the d-axis correction amount and the q-axis correction amount to the d-axis current command value and the q-axis current command value.

To provide a valve controller which is convenient for users in that, even users without abundant experience and expert knowledge can obtain the optimum operation performance for a short period of time; and it can be prevented that control performance is caused to be deteriorated on the contrary in dependence on changing way of each coefficient. A valve controller 8 for controlling valve opening of an expansion valve 4 by calculating the valve opening such that a detected temperature (degree of superheat) Tsh coincides with a target temperature (degree of superheat) T_S comprises: automatic tuning means for calculating a deviation e(t) between the detected temperature and the target temperature and for calculating changing amount of the valve opening m(t) by substituting at least the deviation and a set control parameter (PB, Ti, Td) into an arithmetic expression to automatically set the control parameter; and control level adjusting means for adjusting a magnitude of the valve opening calculated with the control parameter set by the automatic tuning means in stages in accordance with a set control level, and so on.

Diameters and the number of respective wires are inputted, and a diameter of a virtual wire formed by converting a wire bundle to a model through a predetermined arithmetic expression derived from rule of thumb, and based upon this, a flexure life estimating process of the virtual wire is carried out. It is possible to easily estimate the flexure life and also to estimate the flexure life and obtain the results immediately after an application subject and a wire harness to be placed have been designed; thus, it becomes possible to shorten the developing period.

The present invention describes a method for a one-pass parsing algorithm for generation of a Polish string that computationally defines the maximal possible parallel execution of a general class of arithmetic expressions using one operator stack and two operand stacks. This invention relaxes the assumption that in a processor, only one operation can be performed at any given time.

A filter coefficient calculator of a weight measurement apparatus calculates filter coefficients using a predetermined arithmetic expression and outputs them to a signal processor. The signal processor carries out a filtering process on a weighing signal using the filter coefficients. The arithmetic expression includes a spectrum parameter specifying a band position of an attenuation band where attenuation must be locally enhanced. A user can input a value of the parameter via a data entry part. Each band is specified by the spectrum parameter not as the lowest limit value of a normalized angular frequency, but as the amount of deviation (the amount of displacement) from its center frequency.

The present invention provides an optical measuring apparatus and an optical measuring method for being able to correct the influence of a superficial tissue to be able to accurately measure a degree of light absorption of a deep layer tissue such as a human body and fruits, and a storage medium that stores an optical measuring program. The optical measuring apparatus includes a probe, and the probe includes one light emitting diode and two photodiodes. In a configuration of the optical measuring apparatus, one of the photodiodes receives light which is emitted from the light emitting diode and transmitted through a superficial layer and a deep layer of a tissue, and the other photodiode receives light having a deep layer transmission distance different from that of the light received by one of the photodiodes. The light received by the other photodiode is also transmitted through the superficial layer and deep layer of the tissue. Based on intensity of the light received by each photodiode, a control unit computes a propagation constant in a medium through which the light propagates. An arithmetic expression is selected in accordance with an input fat thickness of the tissue, and an absorption coefficient of the light from a muscle tissue using the arithmetic expression based on the fat thickness and a spatial slope. A hemoglobin concentration and an oxygen saturation are obtained based on the obtained absorption coefficient of the light.

An engine control apparatus which may be employed in automotive vehicles. The engine control apparatus is equipped with a controlled variable arithmetic expression which defines correlations between a plurality of combustion parameters and a plurality of controlled variables of actuators for control of an operation of the engine to calculate a combination of command values to be outputted to the actuators for regulating the controlled variables needed to achieve target values of the combustion parameters. When one of the command values is produced outside an allowable operation range of a corresponding one of the actuators, the engine control apparatus corrects or limits the one of the command values to an upper or a lower limit of the allowable operation range, thereby ensuring the stability in bringing engine output characteristics close to desired values.