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Electrical computers: arithmetic processing and calculating April category listing, related patent applications 04/12

20120102081 - Low-latency arc-tangent calculation structure and calculation method thereof: The present invention provides a low-latency arc-tangent calculation structure and a calculation method thereof. The arc-tangent calculation structure comprises two lookup tables, a subtractor, a sign comparator, a numerical comparator and a shift encoder. The present invention divides the coordinate system into a plurality of sectors for simplifying the lookup... Agent: National Chiao Tung University

20120102082 - Reception apparatus, reception method and program: Disclosed herein is a reception apparatus, including a first equalization section, a second equalization section, and an arithmetic operation section. The first equalization section is adapted to carry out equalization of a signal which represents data transmitted by a transmission method which uses a single carrier. The second equalization section... Agent: Sony Corporation

20120102083 - Fourier transform processor: A Fourier transform processor that is used in wireless communication includes: a Fourier transform mechanism including a butterfly unit and configured to perform a Fourier transform on data that is input to the Fourier transform processor; a first memory configured to store the data that is input to the Fourier... Agent: Raytron, Inc.

20120096060 - Electronic calculator, calculation result displaying method, and recording medium storing program for displaying calculation result: A mathematical formula input unit inputs a mathematical formula according to a user manipulation. A calculation unit calculates a calculation result of the mathematical formula. A display unit displays the mathematical formula and the calculation result. A position specifying unit specifics a position in a display area on the display... Agent: Casio Computer Co., Ltd.

20120096061 - Adaptive filter: An adaptive filter configured to filter an input signal comprises Fourier transforming unit configured to transform the input signal into a frequency domain signal upon the basis of the Fourier transform, weighting unit configured to weight at least a portion of the frequency domain signal with a filter coefficient of... Agent: Huawei Technologies Co., Ltd.

20120096062 - Modular calculator, operation method of the modular calculator, and apparatuses having the same: A modular calculator and a method of performing a modular calculation are provided. The modular calculator includes a first register to receive and to store a first integer, a second register to receive and to store a second integer, a calculator connected to an output terminal of the first register... Agent: Samsung Electronics Co., Ltd

20120089653 - data converting method and a device therefor: A data converting method and device therefor are disclosed by the invention, relating to data converting algorithm field, solving the problem of complicate data converting method in prior art. Steps of the invention are obtaining offset from the predetermined byte of the data string to be converted; obtaining the predetermined... Agent: Feitian Technologies Co., Ltd.

20120089654 - Method for dequantization of 1-d lut correction curves: A method is described to combine two integer lookup tables to realize a single integer lookup table. The method converts each lookup table to a set of floating point values. The conversion process generates a set of floating point values that are as close as possible to the underlying analytic... Agent: Xerox Corporation

20120089655 - System and method of dynamic precision operations: In an embodiment, a method performs computer operations using a first fractional precision and a second fractional precision. A computer program has a source variable, a destination variable, and an operation. The source variable has a first dynamic fractional precision, the destination variable has a second dynamic fractional precision that... Agent: Dolby Laboratories Licensing Corporation

20120089656 - Random number generator circuit and cryptographic circuit: A random number generator circuit includes: an element generating and outputting physical random numbers; a digitizing circuit digitizing the physical random numbers to output a random number sequence tested by a testing circuit; and an error correcting code circuit including a shift register having the random number sequence input thereto,... Agent: Kabushiki Kaisha Toshiba

20120089657 - Systems and methods for partially conditioned noise predictive equalization: Various embodiments of the present invention provide systems and methods for equalization. As an example, a circuit for data equalization is described that includes a 2N state detector circuit that provides a series of detected bits based upon a conditioned input, and a noise predictive filter having a plurality of... Agent: Lsi Corporation

20120089658 - Modulo operation method and apparatus for same: The present invention provides a modulo operation method. The modulo operation method, in a case where the square of a divisor N is greater than or equal to a dividend C, includes: determining the number of computation stages n satisfying 2n<N≦2n+1; performing an initialization operation by initializing a constant a... Agent: Samsung Electronics Co., Ltd.

20120084334 - Data decompression with extra precision: Methods and systems for decompressing data are described. The relative magnitudes of a first value and a second value are compared. The first value and the second value represent respective endpoints of a range of values. The first value and the second value each have N bits of precision. Either... Agent: Nvidia Corporation

20120084335 - Method and apparatus of processing floating point number: A method and apparatus of processing floating point number(s) is provided. The method which processes a plurality of first floating point numbers each having a mantissa and an exponent includes: normalizing exponents of the first floating point numbers according to a minimum value of the exponents to generate normalized exponents... Agent:

20120084336 - Systems and methods for retry sync mark detection: Various embodiments of the present invention provide systems and methods for sync mark detection. As an example, a sync mark detection circuit is discussed that includes a storage circuit, a plurality of noise predictive filter circuits, and a controller circuit. The storage circuit is operable to store a data input... Agent: Lsi Corporation