295 results about "Valid Value" patented technology

An image pick-up apparatus and an image pick-up system constructed to prevent occurrence of random noise in a photographed image due to a random noise component produced in a reference supply circuit. An image pick-up apparatus has an area sensor driven by matrix driving, and a reference supply circuit for supplying a reference voltage for driving of the area sensor, and the reference voltage is supplied through a low-pass filter (LPF) coupled to the reference supply circuit. Further, a cutoff frequency of the low-pass filter preferably is determined so that an effective value of noise of the reference voltage having passed through the low-pass filter becomes not more than one-tenth of an effective value of random noise produced in pixels of the area sensor.

A plurality of kinds of feature amounts are collected from image information and voice information on a person existing in a space, valid values of the collected feature amounts are calculated, feature amounts to be used for personal recognition are determined in the collected feature amounts on the basis of the calculated valid values, and personal recognition is performed by using the determined feature amounts.

The present invention provides a method, apparatus and article of manufacture, for fast context saving in transactional memory. The method creates a mapping table that includes entries corresponding to architectural registers. Each entry includes a physical register index and shadow bit of a first physical register mapped to an architectural register. In response to a detection that an update occurs to an architectural register in a transaction and its shadow bit being an invalid value, the method sets the shadow bit to be a valid value and sets a shadow register for the architectural register using the physical register index of the first physical register. The method maps a second physical register to the shadow register in order to save a modified value generated by an update process and saves the original value before the update process by use of the first physical register corresponding to the architecture register.

The invention is directed to a method which derives from metadata definitions the allowable values for a method argument, where said allowable values are a subset or a restricted set of values from a defined range of values for that type of method argument. The subset of allowable values is then converted into a fragment of source code that can be used to initialise the argument variable with one of the allowable values when the method is invoked. The fragment of source code is inserted into the source code for that method argument using an editor tool. A system for implementing the method may comprise an integrated development environment (IDE) program.

A method of maintaining coherency in a multiprocessor computer system wherein each processing unit's cache has sectored cache lines. A first cache coherency state is assigned to one of the sectors of a particular cache line, and a second cache coherency state, different from the first cache coherency state, is assigned to the overall cache line while maintaining the first cache coherency state for the first sector. The first cache coherency state may provide an indication that the first sector contains a valid value which is not shared with any other cache (i.e., an exclusive or modified state), and the second cache coherency state may provide an indication that at least one of the sectors in the cache line contains a valid value which is shared with at least one other cache (a shared, recently-read, or tagged state). Other coherency states may be applied to other sectors in the same cache line. Partial intervention may be achieved by issuing a request to retrieve an entire cache line, and sourcing only a first sector of the cache line in response to the request. A second sector of the same cache line may be sourced from a third cache. Other sectors may also be sourced from a system memory device of the computer system as well. Appropriate system bus codes are utilized to transmit cache operations to the system bus and indicate which sectors of the cache line are targets of the cache operation.

Bit errors in packets of data that are communicated in a network such as a wireless network can be corrected by processes that do not require any overhead in the data such as conventional error-detection codes or redundant information such as conventional error-correction codes. A validation-set process compares corrupted data against values in a set of known valid values and selects one of the known valid values to replace the corrupted data. A consistency-check process uses data correlation characteristics of two or more parameters to determine if values obtained from a packet are consistent with one another. If not, values are changed to make them consistent.

The invention relates to the field of protection and control of micro-grids of electric power systems and particularly relates to a micro-grid island fast detection method. The method is sued for an inverter-based distributed generation (IBDG) with a PQ (power quest) decoupling control strategy; a corresponding reactive power control strategy is adopted in the method on the basis of measuring a voltage effective value UPCC and the load reactive power of a common coupling point PCC in real time through comparing the voltage effective value UPCC with the voltage effective value under a normal condition; when island determination is performed, firstly, a voltage threshold value and a frequency threshold value are predetermined, the voltage effective value UPCC is compared with the voltage threshold value, if the voltage effective value UPCC exceeds the threshold value, the PCC is directly determined be in an island state and the island detection is finished, and if the voltage effective value UPCC does not exceed the threshold value, the voltage frequency f of the PCC is compared with the frequency threshold value, the PCC is determined to be in the island state if the voltage frequency f of the PCC exceeds the threshold value. With the adoption of the detection method, the micro-grid island detection can be realized fast, and the effectiveness of the island detection can be ensured even under the existence of a plurality of inverter-based distributed generations.

A method reconstructs a depth image encoded as a base layer bitstream, and a set of enhancement layer bitstreams. The base layer bitstream is decoded to produce pixels of a reconstructed base layer image corresponding to the depth image. Each enhancement layer bitstream is decoded in a low to high order to produces a reconstructed residual image. During the decoding of the enhancement layer bitstream, a context model is maintained using an edge map, and each enhancement layer bitstream is entropy decoded using the context model to determine a significance value corresponding to pixels of the reconstructed residual image and a sign bit for each significant pixel, and a pixel value of the reconstructed residual image is reconstructed according to the significance value, sign bit and an uncertainty interval. Then, the reconstructed residual images are added to the reconstructed base layer image to produce the reconstructed depth image.

An improved method and system for performing dynamic online multi-parameter optimization for autonomic computing systems are provided. With the method and system of the present invention, a simplex, i.e. a set of points in the parameter space that has been directly sampled, is maintained. The system's performance with regard to a particular utility value is measured for the particular setting of configuration parameters associated with each point in the simplex. A new sample point is determined using the geometric transformations of the simplex. The method and system provide mechanisms for limiting the size of the simplex that is generated through these geometric transformations so that the present invention may be implemented in noisy environments in which the same configuration settings may lead to different results with regard to the utility value. In addition, mechanisms are provided for resampling a current best point in the simplex to determine if the environment has changed. If a sufficiently different utility value is obtained from a previously sampled utility value for the point in the simplex, then rather than contracting, the simplex is expanded. If the difference between utility values is not sufficient enough, then contraction of the simplex is performed. In addition, in order to allow for both real and integer valued parameters in the simplex, a mechanism is provided by which invalid valued parameters that are generated by geometric transformations being performed on the simplex are mapped to a nearest valid value. Similarly, parameter values that violate constraints are mapped to values that satisfy constraints taking care that the dimensionality of the simplex is not reduced.

An electronic system (1) is described to perform a purchase transaction of goods or services. The system includes a mobile electronic device (2) configured to receive (t₃) a second message (MSG2) carrying an authorization data field (AUT_D) dicating a valid or invalid authorization to use an electronic money for performing the purchase transaction, configured to store the content of the authorization data field into a non-volatile memory (160) inside the mobile electronic device and configured to transmit (t₅; t₇′) a third message (MSG3; MSG4′) carrying an electronic money identification data field (EM_ID) for indicating data identifying the electronic money used for performing the purchase transaction and carrying the authorization data field (AUT_D; AUT_D′). The system further includes a transaction server (4) configured to transmit (t₂) the second message (MSG2) carrying the authorization data field (AUT_D) and configured to receive (t₁₀) a fifth message (MSG5) carrying the electronic money identification data field (EM_ID) and carrying a bill amount field (BL_AM) indicating a bill amount to be paid for the selected goods or services and transmit (t₁₁) therefrom a sixth message (MSG6) carrying a settlement result field (RES_STL) for indicating if the value of the bill amount has been debited on the electronic money. The system further includes a Point-of-Sale device (6) configured to receive (t₆; t₈′) from the mobile electronic device the third message (MSG3; MSG4′) carrying the electronic money identification data field (EM_ID) and the authorization data field (AUT_D; AUT_D′) and transmit (t₉) therefrom the fifth message (MSG5) carrying the electronic money identification data field and the bill amount field (BL_AM), in case of a valid value of the content of the authorization data field.

The embodiment of the invention provides a bitmap index compressing method and device. Bitmap information of segments of bitmap indexes corresponding to an index key word is obtained according to preset segment width segments, deviation values of effective values of the bitmap information of the segments are stored according to the corresponding binary storage digits, compression information of the bitmap information of the segments is obtained, and due to the fact that only the deviation values of the effective values in the bitmap information of the segments are stored, storage space of the bitmap indexes can be reduced. Correspondingly, the embodiment of the invention provides a bitmap index decompressing method and device, storage bits of binary representation information of the deviation values of the effective values are utilized for obtaining the deviation values of the effective values in the compression information of the bitmap information of the segments, the bits corresponding to the deviation values of the effective values in initialized bitmap information are arranged to be the effective values, decompression information corresponding to the compression information of the bitmap information of the segments is obtained, the decompression complexity of the bitmap indexes can be reduced, and the searching query efficiency of the bitmap indexes is improved.

A parameter calculation unit statistically calculates the estimations and their certainty of a predetermined number of parameters, which uniquely specify any position on an object, for each of a plurality of measured sample sets on the basis of position information of marks composing the sample set. A valid value calculation unit calculates statistically valid values of the predetermined number of parameters on the basis of groups of the estimations and their certainty of the predetermined number of parameters for the respective sample sets. Furthermore, an evaluation unit statistically evaluates if the number of marks composing a sample set can be reduced. If it is determined that the number of marks can be reduced, the parameter calculation unit calculates values of the predetermined number of parameters by using a new sample set having reduced number of marks. Using the values of the predetermined number of parameters calculated in this manner, the position of any area on the object can be accurately detected.

The invention discloses a smartwatch-based swimming motion analysis method and a smartwatch and relates to the field of smart wearable devices. The method comprises: from action signals acquired from all coordinate axes of a sensor of the smartwatch, acquiring multiple peak values and valley values; filtering the peak values and the valley values to obtain valid peak values and valid valley values; performing action cyclic matching on the valid peak values and the valid valley values; determining a swimming state of a wearer according to the matching results. The action signals acquired by the sensor are screened herein, irregular signals are removed, and the quantity of basic data is deceased; whether the wearer is in the swimming state is automatically judged according to cyclicity of the signal itself, and manually opening the swimming mode by the wearer is not required. Compared with the prior art, the method and the smartwatch have the advantages that there is no need for massive template matching calculations, calculating load of the smartwatch is lowered, and recognition rate is increased.

A method is described for optimizing the transport of Ethernet frames in a telecommunication network over different connections having different delays, in order to avoid overflow of the receiving queues. The method includes measuring of the delays of the connections, collecting the values of the delays, defining a range of valid values, comparing the values of the delays to the defined range and carrying the Ethernet frames over the connections having the values of the delays within the defined range.

The invention discloses a direct current predicting and setting method for inhibiting commutation failure. Aiming at the commutation failure problem of an inverter of a direct current power transmission system, the direct current predicting and setting method is effectively established by detecting the direct current at the inverse side of the direct current power transmission system and the alternating current bus voltage, comprehensively considering the influence of the direct current and the alternating current bus voltage on the commutation process of the inverter, and utilizing alternating current bus voltage zero-sequence voltage component, abc-alpha beta conversion and alternating voltage valid values. The method provided by the invention can be used for laying a good foundation for further researching the predicting control method for commutation failure of a direct current power transmission system.

The invention discloses a method for selecting a cell after the loss of service, comprising the following steps of: executing initial cell selection and simultaneously recording a PLMN identification, a cell frequency point and a CSG cell identification to which a cell with the best signal quality on each frequency point belongs within a frequency band supported by a UE to form a PLMN_CSG record, wherein if the CSG cell identification exists, the CSG cell identification is a valid value, or else the CSG cell identification is an invalid value; selecting available parameters from the PLMN_CSG record when no suitable cell for residence is searched in the initial cell selection; and executing cell selection again on the basis of the selected available parameters and selecting suitable cell for residence for the UE. The invention also discloses a device for selecting the cell after the loss of theservice. The invention can reduce the energy consumption of the UE and also shorten the time required by the UE for executing cell selection.

The invention discloses a method for constructing a protection big data fault characteristics system based on wave recording and scanning technology. The method comprises the following steps: through the decoding of a wave recording file, accessing the waveform data of all sampling points; calculating the valid values and determining whether adjacent waves experience mutations or not; for the unit experiencing mutations in their valid values, using the slope mutations of the sampled values prior to or after the unit to determine the accurate mutation point and to determine the fault time; extracting the local characteristics quantity of the voltage and current waveform in the wave recording data; representing in multiple dimensions the characteristics information extracted from the data window given on the waveform; and using the fault time as the critical point to form local characteristics quantities at different times in the scanned waveform data prior to and after the fault and to construct a complete fault characteristics system. According to the invention, in multiple perspectives and dimensions, fault characteristics data are excavated and extracted, and based on the requirement of a protection big data analyzing platform and a big data theory, a fault characteristics system structure is formed, which can ensure the realization of higher-level of application functions of the protection big data in a power grid system.

The invention discloses a control system and a control method of three-phase independent control grid inversion, wherein the control method of the three-phase independent control grid inversion comprises the steps: 1, error information between an electric supply phase angle and a lock phase angle is obtained by a DQ lock phase based on a closed ring lock phase of the three-phase system of a synchronous rotation coordinate system; 2, the voltage ring adopts comparison between the input voltage and the reference voltage; the obtained error signal is used as a current loop reference after being controlled and outputted by PI to perform PI control; 3, the electric supply valid value and the angle of the single-phase DQ lock phase are combined to replace the electric supply to generate a new front feed signal; and 4, the output of the current loop control and the quantity of the front feed control are used as final output quantity to be used as a modulation signal of SPWM (sinusoidal pulse width modulation) modulation so as to drive the inverter, therefore, the whole three-phase grid inverse system can run.

The invention discloses a calculating method suitable for harmonic pollution responsibilities in a power quality data interchange format in the technical field of power. According to the technical scheme, the method comprises the following steps of: calculating system harmonic impedance according to nominal voltage of a power grid and three-phase shortcircuit capacity of a common coupling point; on this basis, calculating harmonic voltage effective value amplitude contributed by a concerned harmonic source to a bus at the common coupling point, and solving background harmonic voltage effective values contributed by rest harmonic sources except the concerned harmonic source at the common coupling point; further calculating an included angle cosine between the harmonic voltage effective value of the bus and the harmonic voltage effective value contributed by the concerned harmonic source; and finally, calculating the harmonic pollution responsibilities generated by the concerned harmonic source at the bus. The calculating method has the advantages that the harmonic pollution responsibilities of the harmonic source can be monitored every day on the basis of the conventional power quality monitoring system; and the calculating method has great significance for the further solving of the harmonic pollution problems and the improvement of the power quality management level.

A mechanism is provided for efficiently storing a key and optionally additional data in an environment. A memory apparatus embodiment includes a plurality of memory banks and a conversion module. The number of memory banks is determined by at least the number of coordinates within an n-dimension format, each bank is associated to one of the coordinates within the n-dimension format. Each memory bank has at least a number of memory locations equal to the largest valid value for its associated coordinate. The conversion module converts a key into an n-dimension format, the n-dimension format defines a coordinate system where each coordinate represents a memory location within the associated memory bank. The conversion module stores the key into one memory location based on a policy which is dependent on the coordinates defined by the n-dimension format.