Showing papers on "Division (mathematics) published in 2012"

Image processing apparatus and method

Abstract: There is provided an image processing apparatus which includes a division unit dividing an image into a plurality of images in a bit depth direction, and an encoding unit encoding respectively some or all of the plurality of images acquired by dividing the image in the bit depth direction by the division unit.

Linguistic protocols for secure information management and sharing

Abstract: One issue which is essential for the security of calculations and communication as well as the ability to guarantee data confidentiality is intelligent threshold division of strategic information that may later be passed on to a group of authorized users for reconstruction and shared use. Enabling such division of information acquires particular significance with regard to the management of important and confidential data by various national institutions, corporations or strategic (military) units. It seems that these techniques will become increasingly more important along with the growing number of their applications. The division of confidential information is inevitably related to the cryptographic algorithms of the division of secrets. Relying on these techniques, this paper will focus on two issues. The first is the expansion of the traditional techniques for the division of secrets and the development of the so-called linguistic threshold schemes, a new concept based on the traditional algorithms of the division of information which additionally introduces the stage of linguistic conversion of shared data using specially defined formal grammar. The other is the demonstration of how linguistic threshold schemes thus developed may be used to manage secret data in a variety of selected organizational structures.

Voice interaction support device, method and program

Abstract: PROBLEM TO BE SOLVED: To replay sound of re-listen efficientlySOLUTION: In a voice interaction support device 100, a division unit 102 divides audio data including words and sounds depending on characteristics not less than 1 of word and acoustic characteristics, and acquires several divided audio data An analyzer 103 acquires analysis about the word and acoustic characteristics for each divided audio data An expression detecting unit 105 detects clue expression not less than 1 indicating either indication of a user or state of the user for each divided audio data by at least either utterance by the user or action by the user When the clue expression is detected, an estimation unit 108 estimates the divided audio data as replay data not less than 1 from the divided audio data not less than 1 corresponding to the sound uttered before the clue expression is detected based on the analysis An output unit 110 outputs the replay data

The inverse relation between multiplication and division: Concepts, procedures, and a cognitive framework

Abstract: Researchers have speculated that children find it more difficult to acquire conceptual understanding of the inverse relation between multiplication and division than that between addition and subtraction. We reviewed research on children and adults’ use of shortcut procedures that make use of the inverse relation on two kinds of problems: inversion problems (e.g., \( {9} \times {24} \div {24} \)) and associativity problems (e.g., \( {9} \times {24} \div {8} \)). Both can be solved more easily if the division of the second and third numbers is performed before the multiplication of the first and second numbers. The findings we reviewed suggest that understanding and use of the inverse relation between multiplication and division develops relatively slowly and is difficult for both children and adults to implement in shortcut procedures if they are not flexible problem solvers. We use the findings to expand an existing model, highlight some similarities and differences in solvers’ use of conceptual knowledge across operations, and discuss educational implications of the findings.

Universal rules for division plane selection in plants

Abstract: Coordinated cell divisions and cell expansion are the key processes that command growth in all organisms. The orientation of cell divisions and the direction of cell expansion are critical for normal development. Symmetric divisions contribute to proliferation and growth, while asymmetric divisions initiate pattern formation and differentiation. In plants these processes are of particular importance since their cells are encased in cellulosic walls that determine their shape and lock their position within tissues and organs. Several recent studies have analyzed the relationship between cell shape and patterns of symmetric cell division in diverse organisms and employed biophysical and mathematical considerations to develop computer simulations that have allowed accurate prediction of cell division patterns. From these studies, a picture emerges that diverse biological systems follow simple universal rules of geometry to select their division planes and that the microtubule cytoskeleton takes a major part in sensing the geometric information and translates this information into a specific division outcome. In plant cells, the division plane is selected before mitosis, and spatial information of the division plane is preserved throughout division by the presence of reference molecules at a distinct region of the plasma membrane, the cortical division zone. The recruitment of these division zone markers occurs multiple times by several mechanisms, suggesting that the cortical division zone is a highly dynamic region.

Scanning method for human body security check system utilizing frequency division and space division

Abstract: The present invention discloses a scanning method combing a human body security check system with frequency division and space division to avoid opposite radiation interference During scanning, the operating frequency of a detection signal provided by a first millimeter wave transceiver is different with that of a detection signal provided by a second millimeter wave transceiver at the same moment; and in addition, during scanning, the detection altitude of an antenna unit in a first millimeter wave switching antenna array is different with that of an antenna unit in a second first millimeter wave switching antenna array at any moment The method avoids the opposite radiation interference in switching antenna arrays on both sides of a millimeter wave active three-dimensional holographic imaging human body security check system, so as to improve the level of imaging definition

Liquid crystal display method and liquid crystal display device

Abstract: The invention provides an LCD method which can adjust the brightness of different regions of a backlight source according to display images. More specifically, the invention provides an LCD method, and the method comprises the following steps: receiving an image signal; analyzing the image signal; dividing the image according to the analysis result of the image signal, and dividing the images into at least two image partitions; dividing the backlight source according to the image division result, and dividing the backlight source into at least two backlight source partitions; adjusting the backlight source brightness of each backlight source partition; and adjusting the image signal of each image partition. In the LCD method, the image and the backlight source are divided according to theimage signal, meanwhile, the brightness of the image and the backlight source at each partition is adjusted, which reduces the power consumption of the LCD, increases the contrast of the image signals, and improves the LCD effect.

Table-Based division by small integer constants

Abstract: Computing cores to be implemented on FPGAs may involve divisions by small integer constants in fixed or floating point This article presents a family of architectures addressing this need They are derived from a simple recurrence whose body can be implemented very efficiently as a look-up table that matches the hardware resources of the target FPGA For instance, division of a 32-bit integer by the constant 3 may be implemented by a combinatorial circuit of 48 LUT6 on a Virtex-5 Other options are studied, including iterative implementations, and architectures based on embedded memory blocks This technique also computes the remainder An efficient implementation of the correctly rounded division of a floating-point constant by such a small integer is also presented

Image display device

Abstract: PROBLEM TO BE SOLVED: To provide an image display device capable of enhancing visibility gradation for an image quality effect image in frame rate conversion processing.SOLUTION: An image display device 100 includes a frame rate conversion processor 130 and a sub-frame division processor 140, an image data selector 150, and a display 170. The frame rate conversion processor 130 outputs image data of Y bit gradation by N times of the input frame rate M. The sub-frame division processor 140 divides the image data of Y+logN bit gradation into N subframes becoming the image data of Y bit, and outputs in order by N times of the input frame rate M. The selector 150 switches the output of the frame rate conversion processor 130 and the output image data of the sub-frame division processor 140, and outputs to the display 170 by frame rate of M×N.SELECTED DRAWING: Figure 1

Digital Computer Arithmetic Datapath Design Using Verilog HDL

Abstract: Preface. 1. Motivation. 2. Verilog at the RTL Level. 3. Addition. 4. Multiplication. 5. Division Using Recurrence. 6. Elementary Functions. 7. Division and Square Root Using Multiplicative-Based Methods. References. Index.

Apparatus, system and method for managing solid-state retirement

Abstract: A storage controller is configured to determine a reliability metric of a storage division of a solid-state storage medium based on one or more test read operations. The storage division may be retired based on the reliability metric and/or the age of the data on the storage division. A storage division comprising aged data may be marked for post-write reliability testing, which may comprise determining a post-write reliability metric in response to grooming and/or reprogramming the storage division. The storage controller may project the reliability metric of the storage division to the end of a predetermined data retention period. Portions of a storage divisions that exhibit poor reliability may be removed to improve the reliability of the storage division without taking the entire storage division out of service.

Stem relations and inflection class assignment in Italian

Abstract: The paper proposes a reassessment of the division of Italian verbs into classes, and proposes a model for the mental representation of inflectional paradigms. The treatment is rooted in a thematic model of morphology, according to which the identification of a unique (basic) form for lexemes is not a priority, not even for the regular ones. Rather, it is assumed that lexemes may be stored in the lexicon as complex entries containing different phonological forms, called stems. The model proposed aims at reducing complexity not by reducing all forms to unity, but by describing the relations between stems and by reducing the inventory of their possible configurations, or stem spaces.

Modified non-restoring division algorithm with improved delay profile and error correction

Abstract: This paper focuses on improving the performance of non-restoring division by reducing the delay and finding a correct quotient quickly Although the non-restoring division algorithm is the fastest and has less complexity than other radix-2 digit recurrent division algorithms, there are still some possibilities to enhance its performance To improve its performance, two new approaches are proposed here For the first proposed approach, a non-restoring divider with a modified algorithm is presented The new algorithm changes the order of the flowchart, which reduces one unit delay of the multiplexer per iteration Secondly, a new method to find a correct quotient is presented and it removes an error that the quotient is always odd number after a digit conversion from a digit converter from the quotient with digits 1 and −1 to a conventional binary number The new logic to generate the LSB of the quotient quickly is also explained in this paper

Screen division method and device of multimedia information issuing system

Abstract: The invention is suitable for the field of technical applications of software, particularly relates to a self-defined screen division method of a multimedia information issuing system and provides a method for dividing a display screen in a self-defined template way which is easy to operate By performing digital division on the display screen, calculation operation and seamless connection of templates are easier Self-adaptation is performed on a video type playing module, the proportion of played videos is regulated, the module is operated in an anti-conflict button way in a playing region adjusted by a keyboard, the operation is easier, and the templates are arranged, so that the personalized division of an interface can be realized to the greatest extent

Complex division and square-root using CORDIC

Abstract: In this paper, we present designs of CORDIC-based fixed-point complex division and square-root FPGA implementations. We optimized the arithmetic of CORDIC unit, complex division and square-root. Then a architecture of CORDIC units based recurrence architecture was proposed. The complex number division and square-root was implement and evaluated on a Altera Stratix II FPGAs, with max frequency up to 180Mhz, and can easily be ported to ASIC implementation. These architecture have good numerical properties and the result is accurate to less than one ulp.

Qualitative Computing: A Computational Journey Into Nonlinearity

Abstract: Introduction to Qualitative Computing Hypercomputation in Dickson Algebras Scales of Complexity and Linear Reachability Singular Values for the Multiplication Maps Computation Beyond Classical Logic Complexification of the Arithmetic Homotopic Deviation in Linear Algebra The Discrete and the Continuous Arithmetic in the Alternative Dickson Division Algebras The Real and the Complex.

Method for transmitting and receiving a signal, and apparatus therefor

Abstract: The present invention relates to a wireless communication system. Specifically, a method for transmitting an uplink signal in a wireless communication system supporting carrier aggregation includes the steps of: setting a first cell of a first time division duplex (TDD) uplink (UL)-downlink (DL) configuration, and a second cell of a second TDD UL-DL configuration; receiving data over a DL subframe of the first cell; and transmitting a control signal over a UL subframe of the second cell in response to the received data, wherein a relationship of the DL subframe and UL subframe is determined by parameter values set in a specific TDD UL-DL configuration in a TDD WL-DL configuration set, the specific TDD UL-DL configuration has the minimum number of DL subframes from among one or more of TDD UL-DL configurations in which subframes set as a DL or X are all set as the DL in the first cell or the second cell, the subframes set as X have different subframe directions in the first cell and the second cell at a corresponding subframe timing, and the uses thereof are limited in either the first cell or the second cell.

Method for reconstructing model after drilling surface grid model of rigid object

Abstract: The invention discloses a method for reconstructing a model after drilling a surface grid model of a rigid object, which aims to simplify a three-dimensional Boolean operation problem into a two-dimensional Boolean operation problem and reduce the computational complexity of an intersecting detection process of in model Boolean operation so as to achieve the real-time performance of model reconstruction. The method comprises the following steps of: firstly detecting triangular surface sheets intersected with cutting curved surfaces, moving grid peaks outside the intersected curved surfaces ofthe triangular surface sheets onto the cutting curved surfaces, then preprocessing model surface grids to realize the classified division of the triangular surface sheets on the surface of the grid model, and finally dynamically reconstructing the grid model in Boolean operation geometric processing. A two-dimensional Boolean operation processing method can be directly adopted to realize the Boolean operation geometric processing for the grid model in three-dimensional space, thereby saving the process of space division on the surface of the model, simplifying an intersecting detection algorithm, improving the operation efficiency and achieving the effect of real-time processing.

High speed imaging using a capacitive division technique

Abstract: The charge division technique is a simple concept used in photon-counting imaging detectors to determine one or two-dimensional event coordinates by location of the centroid of the charge cloud generated in the detector. Traditional devices, such as the resistive anode and wedge-and-strip anode, utilize resistive and geometric methods respectively to implement this technique, enabling them to achieve reasonably good spatial resolution at moderate event rates using a low electronic channel count. We describe the Capacitive Division Image Readout (C-DIR), a simple method of implementing charge division readout with major performance advantages and which is simple and economical to construct. C-DIR utilizes three elements; (i) a resistive layer providing event charge localization and DC signal current return path, (ii) a dielectric substrate which provides electrical isolation from the detector voltages and capacitively couples the event transient signal to the third element, (iii) an array of capacitively coupled electrodes which divides the signal among several charge measurement nodes. The purely capacitive signal paths have high bandwidth and present a low capacitive load to the preamplifiers, allowing an unprecedented combination of excellent event time and spatial resolution. We present simulations and experimental results demonstrating the performance advantages of the device and discuss various readout design alternatives, optimized electronics and potential applications.

Encoding and decoding methods and devices for multiple image block division ways

Abstract: The embodiment of the invention provides an encoding method for multiple image block division ways, comprising the following steps of: determining the division way and the division direction of an image block; dividing the image block according to the division way and the division direction to obtain image subblocks sequentially arranged along the horizontal direction or the vertical direction; determining whether the image subblocks are needed to be further divided, and if not, predicating an intra-frame coding object according to the image subblocks to obtain residual data; transforming, quantifying and entropy-decoding the residual data to obtain encoded residual data; and writing the image block division way, the image block division direction, an identifier for indicating whether the image subblocks are needed to be divided and the encoded residual data into a code stream. By using the encoding and decoding methods provided by the embodiment of the invention, better prediction accuracy can be obtained when the pixel value of the image block in the horizontal direction or the vertical direction changes less.

Method and apparatus for peeling protection film for flat display panel

Abstract: An apparatus for removing a protective film for a flat display panel includes a laser oscillating member configured to be disposed over the protective film, the protective film attached to a surface of the flat display panel, the laser oscillating member configured to cut the protective film into a plurality of division regions by irradiating a laser beam; a separation member configured to peel at least one of the plurality of division regions from the flat display panel; a spacer member configured for insertion between the protective film and the at least one division region to be peeled from the flat display panel; and an adhesive member configured for attachment to a surface of the division region opposite the spacer member on the division region, the spacer member and the adhesive member being configured to move in a same direction.