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274 results about "Arithmetic processing unit" patented technology

The arithmetic unit, also called the arithmetic logic unit (ALU), is a component of the central processing unit (CPU). It is often referred to as the “engine” of the CPU because it allows the computer to perform mathematical calculations, such as addition, subtraction, and multiplication.

Remote control system, and display device and electronic device using the remote control system

One embodiment of a remote control system according to the invention includes: a remote control transmitter including a light-emitting element control unit that emits light-emitting element that emit position detection light signals; a remote control receiver including a light-reception signal processing unit that detects position detection reception signals from the position detection light signals, an output detection unit that performs waveform conversion on the position detection reception signals to obtain output signals as position detection output signals, and an arithmetic processing unit that calculates a displacement of the remote control transmitter in a first axis direction and a second axis direction based on an amplitude correlation of output signals; and a cursor control unit that controls the position of the cursor based on the displacement of the remote control transmitter in the first axis direction and the displacement of the remote control transmitter in the second axis direction.
Owner:SHARP KK

Secure data transfer method of using a smart card

A smart card and a settlement terminal are provided by which, when common-key cryptography is used for value transfer between smart cards, the security of the whole system can be improved by enabling easy updating of a cryptographic key used for the value transfer. A smart card transmits / receives value data to / from another smart card. The smart card includes an information accumulating unit for accumulating value data, a transfer key used to update the value data, and an update key used to update the transfer key; a communication unit for receiving a transfer key encrypted by use of the update key, the transfer key being transmitted from another smart card; and an arithmetic processing unit for decrypting the encrypted transfer key by use of the update key to update the transfer key accumulated in the information accumulating unit by use of the decrypted transfer key.
Owner:HITACHI LTD

Posture Detecting Device And Data Acquiring Device

The invention provides a posture detecting device, which comprises a tilt detecting unit as rotatably supported around two shafts perpendicular each other to an outer frame and for detecting a tilting from the horizontal, encoders provided on each of the shafts, motors provided so as to rotate each shaft, and a first arithmetic processing unit for driving / controlling the motor based on a detection result from the tilt detecting unit, wherein the first arithmetic processing unit drives the motors so that the tilt detecting unit detects the horizontal based on a signal from the tilt detecting unit when the outer frame is tilted and calculates a posture of the outer frame based on outputs of the encoders when the tilt detecting unit detects the horizontal.
Owner:KK TOPCON

Virtual image display apparatus

An attitude information detection unit detects the attitude of a wearer, and an arithmetic processing unit and a device position drive unit, which form an image area position adjustment mechanism, translate a liquid crystal display device that is a light modulating device relative to a light guide section in a plane parallel to a light incident surface of the light guide section based on a detection result from the attitude information detection unit, whereby the position of an image area can be so changed that an image moves in the direction opposite the direction in which the wearer moves. As a result, when the wearer moves, the image does not follow the motion of the wearer as if the image remained still, whereby the wearer who moves will have a reduced amount of unpleasant sensation resulting from the motion.
Owner:SEIKO EPSON CORP

GPU (graphic processing unit) based parallel power flow calculation system and method for large-scale power system

ActiveCN103617150ARealize the loop iterative processImplement parallel build methodsComplex mathematical operationsMain processing unitArithmetic processing unit
The invention relates to a GPU (graphic processing unit) based parallel power flow calculation system and method for a large-scale power system. The system comprises a symbol Jacobian matrix forming and decomposing module, an initialization module, a power flow equation right-hand side calculation module, a jacobian matrix assignment module, an LU decomposing module and a forward and backward substitution module; the symbol Jacobian matrix forming and decomposing module is located on a host side, and the host side transmits calculating data to an equipment side; the power flow equation right-hand side calculation module, the jacobian matrix assignment module, the LU decomposing module and the forward and backward substitution module are sequentially connected on the equipment side. The method includes (1) transmitting data needed by calculation to the host side entirely; (2) generating a symbol Jacobian matrix and performing symbol composition on the symbol Jacobian matrix; (3) transmitting a decomposition result by the host side to the equipment side; (4) executing power flow equation right-hand side calculation; (5) executing Jacobian matrix assignment; (6) executing LU decomposition; (7) executing forward and backward substitution.
Owner:STATE GRID CORP OF CHINA +1

Rapid movement system for virtual devices in a computing system, management device, and method and program therefor

In a virtualized computer system having at least two computers connected via a network, the service suspension period while a virtual device is dynamically migrated from a first computer to a second computer is shortened.When the virtual device is migrated from the first physical device to the second physical device, memory data existing in an area mapped in the main memory of the first physical device is mapped in a high-speed storage device that is made available to the first physical device. The memory data is copied into an area that is registered in the second physical device but is made unavailable to the second physical device. During a temporary halt of the virtual device, a possession right transferring process is performed by changing possession right information about availability and unavailability of the high-speed storage device so that the area is made unavailable to the first physical device and is made available to the second physical device, thereby dynamically changing settings so that the virtual device can be operated with the use of the arithmetic processing unit of the second physical device.
Owner:NEC CORP

Methods and apparatus for secure data processing and transmission

Methods and apparatus for placing a processing unit into one or more of a plurality of operational modes are disclosed wherein: the apparatus includes a local memory, a bus operable to carry information to and from the local memory, one or more arithmetic processing units operable to process data and operatively coupled to the local memory, and a security circuit operable to place the apparatus into the operational modes; and the plurality of operational modes includes a first mode whereby the apparatus and an external device may initiate a transfer of information into or out of the memory over the bus, a second mode whereby neither the apparatus nor the external device may initiate a transfer of information into or out of the memory over the bus, and a third mode whereby the apparatus may initiate a transfer of information into or out of the memory over the bus, but the external device may not initiate a transfer of information into or out of the memory over the bus.
Owner:SONY COMPUTER ENTERTAINMENT INC

Rollover determination apparatus for vehicles

A rollover determination apparatus for vehicles includes a roll-angular-velocity sensor (1) for detecting, as a roll angular velocity, the rotational angular velocity of a vehicle about a longitudinal axis extending lengthwise through the vehicle, an upward-or-downward-acceleration sensor (2) for detecting, as an upward or downward acceleration, an acceleration in an upward or downward direction of the vehicle, an arithmetic processing unit (4a) for carrying out arithmetic processing on both the roll angular velocity detected by the roll-angular-velocity sensor (1) and the upward or downward acceleration detected by the upward-or-downward-acceleration sensor (2), and a rollover occurrence determining unit (4b) for determining whether the vehicle will roll over based on a processing result of the arithmetic processing unit (4a).
Owner:NEXGEN CONTROL SYST LLC

Information terminal device and map information providing system

The information terminal device (1) of the present invention is provided with a first input unit (11), a position detection unit (12), a first arithmetic processing unit (13), a data storage unit (15), and a first data readout unit (18) , a connection information generation unit (17) and a first output unit (16). The map data stored in the data storage unit (15) has a data structure in which connection information between nodes and line segments constituting the road network is omitted in a recoverable form. The connection information generation unit (17) supplements the map data to generate the connection information, and the first arithmetic processing unit (13) uses the connection information generated by the connection information generation unit (17) to perform route search. and position detection processing and other data processing.
Owner:PANASONIC CORP

Non-contact ic system and mobile terminal

A non-contact IC system 1 is mounted within the casing of a mobile telephone 100 and it includes: an antenna coil 11; an IC module 12 for receiving power and communication information via radio waves received by the antenna coil 11; a central arithmetic processing unit 13 for controlling the entire system and controlling drive power supply to the IC module 12; a regulator 14 for providing drive power to the IC module 12; a voltage detection circuit 15 for detecting the power supplied via the antenna coil 11; a battery 16; a bus 17; and a switch 18. The central arithmetic processing unit 13 controls the drive power supply to the IC module 12 in accordance with the result of detection of power supplied via the antenna coil 11 and the communication state of the IC module 12.
Owner:SHARP KK

Power supply for switching operation, electronic apparatus including the same, and method of controlling the same

An object of this invention is to finely set the voltage at high speed without decreasing the efficiency. In a power supply for switching operation including a switching circuit, an output circuit, a control table which stores data on the ON and OFF periods of the switching circuit in correspondence with a set voltage, an arithmetic processing unit which performs reading operation from the control table and PWM operation, and a digital control unit which controls the switching circuit by outputting a PWM signal, feedback control based on the output voltage is performed in a case where the output voltage is not changed. When changing the output voltage, the feedback control is switched over to control based on data in the control table to change the output voltage at high speed.
Owner:CANON KK

Remote control system, and display device and electronic device using the remote control system

The present invention discloses a remote control system, and display device and electronic device using the remote control system. One embodiment of a remote control system according to the invention includes: a remote control transmitter including a light-emitting element control unit that emits light-emitting element that emit position detection light signals; a remote control receiver including a light-reception signal processing unit that detects position detection reception signals from the position detection light signals, an output detection unit that performs waveform conversion on the position detection reception signals to obtain output signals as position detection output signals, and an arithmetic processing unit that calculates a displacement of the remote control transmitter in a first axis direction and a second axis direction based on an amplitude correlation of output signals; and a cursor control unit that controls the position of the cursor based on the displacement of the remote control transmitter in the first axis direction and the displacement of the remote control transmitter in the second axis direction.
Owner:SHARP KK

Information processing apparatus, information processing method, and program

[Object] To improve functions, operability, and the like by using vibration.[Solving Means] An information processing apparatus according to the present technology includes an arithmetic processing unit. The arithmetic processing unit generates a first haptic-feedback presentation signal, which is to be supplied to a first haptic-feedback presentation device of a plurality of haptic-feedback presentation devices, on the basis of first characteristic information extracted from a first sound signal corresponding to a first channel among sounds of a plurality of channels output from a sound output device capable of outputting the sounds of the plurality of channels, and generates a second haptic-feedback presentation signal, which is to be supplied to a second haptic-feedback presentation device of the plurality of haptic-feedback presentation devices, on the basis of second characteristic information extracted from a second sound signal corresponding to a second channel among the sounds of the plurality of channels.
Owner:SONY CORP

Coordinate detecting device

A coordinate detecting device includes a plurality of first and second electrodes, a detecting unit for scanning the first and second electrodes to detect sensor output values of the first and second electrodes, and an arithmetic processing unit for performing an arithmetic process on the basis of the detected sensor output values. When there are a plurality of peak regions in which the sensor output values of both the first and second electrodes are equal to or greater than a first threshold value, the detecting unit detects the sensor output values at intersection points between the first and second electrodes in the peak regions. The arithmetic processing unit calculates the coordinates of a detection target on the basis of the sensor output values at the intersection points between the first and second electrodes in the peak regions and the coordinates of the first and second electrodes in the peak regions.
Owner:ALPS ALPINE CO LTD

Sentence classification device and method

A sentence classification device includes a storage unit, arithmetic processing unit, and screen display unit. The storage unit stores a document set of a plurality of documents and a term list including a plurality of terms each having one or more words. The arithmetic processing unit classifies the respective documents stored in the storage unit on the basis of the term list. The screen display unit displays a processing result obtained by the arithmetic processing unit on a screen.
Owner:YAMATAKE HONEYWELL CO LTD

Methods and apparatuses for converting floating point representations

A method and an apparatus that determine an addend in a first floating point format from a first representation of a number in the first floating point format are described. An arithmetic processing unit may be instructed to perform a floating point add operation to generate a sum in the first floating point format from the addend and the first representation. A second representation of the number in a second floating point format may be extracted directly from the sum. The first floating point format and the second floating point format may be based on different precisions for the first and second representation of the number.
Owner:APPLE INC

Three-dimensional shape measurement method and three-dimensional shape measurement apparatus

The present invention provides a three-dimensional shape measurement method and a three-dimensional shape measurement apparatus. Color luminance data I (x, y) is separated by an arithmetic processing unit into R, G and B which are color components of a color image. Then, maximum amplitude values are calculated, and the maximum values are composed to obtain an in-focus color omnifocal image. Further, a Z-position corresponding to the maximum amplitude value in an interferogram is calculated in at least one color component, and this processing is performed for all pixels (x, y) to calculate height information for a sample. The height information is provided to the color omnifocal image, such that the three-dimensional shape of the sample can be measured.
Owner:OLYMPUS CORP

Face Image Synthesis Method and Face Image Synthesis Apparatus

A face image synthesis apparatus includes a storage device (2) and an arithmetic processing unit (1). The storage device (2) stores a plurality of face images and a plurality of feature points including an origin. The plurality of feature points are set to each of the plurality of face images. The arithmetic processing unit (1) generates a plurality of deformed face images by deforming the plurality of face images so that the origin and the other feature points thereof are matched to each other and generates a synthesized face image from the deformed face images.
Owner:NEC CORP

Physical quantity measuring instrument and signal processing method thereof

The present invention relates to a physical quantity measuring instrument and signal processing method thereof capable of reducing noise components and improving reliability without increasing size or cost of the circuit. A physical quantity detecting unit (11) has signal detecting components for detecting a plurality of signals based on a desired physical quantity and detects the desired physical quantity. A signal processing unit (12) executes signal processing of the signals detected on the individual detecting axes by the physical quantity detecting unit (11) for linearly combining the signals in different combinations with time. An arithmetic processing unit (13) combines and calculates a plurality of signals based on the physical quantity associated with the physical quantity detecting unit (11) from the signal data output by the signal processing unit (12). It can linearly combine the signals from the plurality of detecting axes in different combinations with time, output them, and obtain desired signal components whose noise components are reduced by calculating the outputs.
Owner:ASAHI KASEI ELECTRONICS CO LTD

Method, apparatus and program for determining the relationship of correspondence between register transfer level description and behavioral description

The relationship of correspondence between the RTL description and the behavioral description is extracted with ease. A behavioral synthesis device analyzes how the scheduling, preparation of a control data flow graph and the sharing of arithmetic processing units and registers are carried out. The behavioral synthesis device then formulates a table of correspondence to show the relationship of correspondence between the RTL description and the CDFG and a table of correspondence to show the relationship of correspondence between the CDFG and the behavioral description. A path determining device couples these tables of correspondence to generate a table of correspondence determining the relationship of correspondence between the RTL description and the behavioral description. The path determining device reflects a path of interest in the RTL description. The path determining device then outputs the behavioral description, corresponding to the RTL description, so that the behavioral description will be uniquely determined by the states of the FSM possessed by the RTL description and by the conditional branching in the behavioral description.
Owner:NEC ELECTRONICS CORP

Surveying Instrument

The invention provides a surveying instrument, which comprises a measuring unit for performing a distance measurement by projecting a distance measuring light toward an object to be measured, an image pickup unit for picking up an image including the object to be measured, an attitude detecting unit provided integrally with the image pickup unit, and an arithmetic processing unit, wherein the attitude detecting unit has tilt sensors for detecting a horizontal and a relative tilt angle detecting unit for detecting a tilt angle of the measuring unit with respect to the horizontal, and wherein the arithmetic processing unit calculates a tilting of the image with respect to a vertical based on a detection result of the attitude detecting unit and displays vertical lines in the image acquired by the image pickup unit based on this calculation result.
Owner:KK TOPCON

Coordinate detecting device and coordinate detecting program

A coordinate detecting device includes a detecting unit configured to detect the capacitance of each of a plurality of electrodes arranged in a predetermined direction and an arithmetic processing unit configured to calculate the coordinates of a detection target using different calculation methods according to the state of a variation in the capacitance of the plurality of electrodes. The arithmetic processing unit calculates the coordinates of the detection target, using one of a centroid calculation method of calculating the coordinates of the centroid and a curve approximation method of calculating a peak of a curve according to a comparison value between a capacitance variation of a peak electrode and a capacitance variation of an electrode which is not adjacent to the peak electrode.
Owner:ALPS ALPINE CO LTD

Face image synthesis method and face image synthesis apparatus

A face image synthesis apparatus includes a storage device (2) and an arithmetic processing unit (1). The storage device (2) stores a plurality of face images and a plurality of feature points including an origin. The plurality of feature points are set to each of the plurality of face images. The arithmetic processing unit (1) generates a plurality of deformed face images by deforming the plurality of face images so that the origin and the other feature points thereof are matched to each other and generates a synthesized face image from the deformed face images.
Owner:NEC CORP

Surveying System

The invention provides a surveying system, which comprises a surveying instrument, wherein the surveying instrument comprises a measuring unit for performing a distance measurement by projecting a distance measuring light toward an object to be measured and by receiving a reflected distance measuring light from the object to be measured, an image pickup unit having an image pickup optical axis running in parallel to a projection optical axis of the distance measuring light and for picking up an image including the object to be measured, an attitude detecting unit provided integrally with the measuring unit and for detecting a tilt angle with respect to the horizontal of the measuring unit, a coordinates acquiring unit for detecting a position of the surveying instrument and an arithmetic processing unit, wherein a first image of the object to be measured is acquired by the image pickup unit from a first position where coordinates of the first position are acquired by the coordinates acquiring unit, a second image of the object to be measured is acquired by the image pickup unit from a second position where coordinates of the second position are acquired by the coordinates acquiring unit, wherein the measuring unit directs a distance measuring optical axis toward common measuring points as specified in the first image and the second image respectively, projects the distance measuring light, and carries out a first distance measurement from the first position and a second distance measurement from the second position, and wherein the arithmetic processing unit calculates horizontal distances from the first position and the second position respectively based on the tilt angles detected by the attitude detecting unit at the first position and the second position, on the first distance measurement and on the second distance measurement, and further the arithmetic processing unit is configured to calculate a base line length based on coordinates of the first position and on coordinates of the second position and to carry out a trilateration with respect to the measuring point based on the horizontal distance and on the base line length.
Owner:KK TOPCON

Support system

According to an improvement support system (100) comprising an input unit (12), a display (11), an arithmetic processing unit (13) and a storage unit (2), the storage unit stores analytical data (21) containing analytical information corresponding to “phenomenon” or “influence” and “cause” or “measures” for each of failure modes previously extracted at a stage of product designing or process designing, and malfunction generation historical data (22, 23) in which malfunction information formed based on the contents of malfunction and related to the failure mode of the analytical information is sequentially accumulated every time the malfunction is detected after the system is started. The arithmetic processing unit (1) has a function of retrieving the analytical data (22 and 23) using the malfunction information as a key and detecting the failure mode correlated with the malfunction. Thus, the number of malfunctions related to the analytical information regarding each failure mode is counted and the total number of malfunctions related to the failure mode is displayed with the contents of the failure mode in the display.
Owner:ORMON CORP

Blood-Sugar Level Management System

There is provided a mobile blood-sugar level measuring system enabling a diabetic patient to accurately and easily perform management of blood-sugar level measurement timing, management of changes in blood-sugar level, and further prediction of a future blood-sugar level. The blood-sugar level measuring system is formed by using a blood-sugar level processing device including a data-arithmetic-processing unit for arithmetically processing the measurement-data, an external data importing unit for entering and accumulating external data on blood-sugar level, a display device for displaying the result of the arithmetic-processing, and a display device control unit for controlling the display device, in combination with a conventional, mobile blood-sugar level monitoring device.
Owner:PANASONIC CORP

Display apparatus and display method

A display apparatus includes an input unit which inputs a video signal, a tuner section which tunes and demodulates a broadcasting signal to output the video signal, an arithmetic processing unit which performs digital arithmetic processing to the video signal from the input unit or the tuner and outputs the processed video signal, a bypass switching unit which outputs the video signal to a subsequent stage without performing the digital arithmetic processing of the arithmetic processing unit, and a display unit which displays a picture on the basis of one of the processed video signal from the arithmetic processing unit and the video signal outputted by the bypass switching unit without performing the digital arithmetic processing. A video signal from a home video game machine or the like is bypassed from the digital arithmetic processing to reduce uncomfortable feeling caused by delay.
Owner:KK TOSHIBA

Apparatus for controlling electric power steering apparatus

To provide an apparatus for controlling an electric power steering apparatus such that, by correcting a dead time compensation amount on the basis of the temperature of a switching element, inconsistency between a dead time and a dead time compensation value can be limited, distortion in motor current or development of torque ripple can be suppressed, dead time compensation can be performed in accordance with a steering condition so as to suppress the generation of noise, and high steering performance can be obtained from low-temperature to high-temperature environment. [Solution] The control apparatus is provided with: a dead time characteristics unit for calculating a dead time characteristic value; a steering state determination unit for determining a steering state; a gain unit for varying the gain of the dead time characteristic value in accordance with the determination of the steering state; a sign determination unit for determining a sign on the basis of a detected current or a current command value of a motor or a model current value by using a sign determination method which is switched in accordance with the determination of the steering state; a temperature sensor for detecting an inverter temperature; a dead time temperature correction value calculation unit for calculating a dead time temperature correction value corresponding to the temperature; and an arithmetic processing unit for arithmetically processing the dead time compensation value to which the sign is allotted with the dead time temperature correction value with respect to an output from the gain unit so as to output a dead time compensation value.
Owner:NSK LTD
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