U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Icon_funbox Bizarre Patents

Patent No. 5823572

Self Defense Weapon With Memo

A self defense weapon formed as a memo pad and which is easily held by a person's fingers, therefore making it possible to provide protection from a mugger and also to quickly and easily write a record or a message without failure of missing or forgetting significant information under a stressful situation.

Newsletter  PatentStorm News

Make the Most of Our Site

See this month's Top Inventors and Most Cited Patents.

Stay on top of the latest innovations by subscribing to an RSS feed.

Registered users: Manage your profile.

 

Class 708/606 - Evaluation of powers


Subclass of Class 708 - Electrical computers: arithmetic processing and calculating
Definition: Subject matter wherein the arithmetic operation performed
No. of applications: 29
Last issue date: 11/24/2011


Application No.Application TitleIssue Date
20110289131MACHINE DIVISION
Techniques are generally described that include methods, devices, systems and/or apparatus for dividing a numerator by a denominator. Some example methods may include selecting a first numerical factor stored in an electronic storage media. The first numerical factor ma...
11/24/2011
20110216899ARITHMETIC OPERATION METHOD AND ARITHMETIC OPERATION DEVICE
In an arithmetic operation method and an arithmetic operation device arithmetic operations such as exponentiation or scalar multiplication can be performed at high speed. In the case where there exists a plurality of different elements Y and each element Y is represente...
09/08/2011
20110179098METHOD FOR SCALAR MULTIPLICATION, METHOD FOR EXPONENTIATION, RECORDING MEDIUM RECORDING SCALAR MULTIPLICATION PROGRAM, RECORDING MEDIUM RECORDING EXPONENTIATION PROGRAM
There are provided a computation method for scalar multiplication or exponentiation and a scalar multiplication program or an exponentiation program which can compute at high speed. In the computation method for scalar multiplication and the scalar multiplication progra...
07/21/2011
20110150213WHITE-BOX IMPLEMENTATION
A system for enabling a device to compute an outcome of an exponentiation Cx having a base C and/or an exponent x, the system comprising means for establishing a plurality of values λi; means for establishing a plurality of values ωi s...
06/23/2011
20110125819MINIMUM MEAN SQUARE ERROR PROCESSING
A first systolic array receives an input set of time division multiplexed matrices from a plurality of channel matrices. In a first mode, the first systolic array performs triangularization on the input matrices, producing a first set of matrices, and in a second mode p...
05/26/2011
20110106868Floating point multiplier with partial product shifting circuitry for result alignment
A floating point multiplier includes a data path in which a plurality of partial products are calculated and then reduced to a first partial product and a second partial product. Shift amount determining circuitry 100 analyses the exponents of the input operands ...
05/05/2011
20110087719MULTIMETER WITH FILTERED MEASUREMENT MODE
A multimeter with filtered measurement mode is disclosed. The multimeter includes a signal conditioning circuit, a low-pass filter, a microprocessor, a measurement circuit, a root-mean-square (RMS) converter, a display unit, and an external rotary switch. The signal con...
04/14/2011
201003128114X4 TRANSFORM FOR MEDIA CODING
In general, techniques are described that provide for 4×4 transforms for media coding. A number of different 4×4 transforms are described that adhere to these techniques. As one example, an apparatus includes a 4×4 discrete cosine transform (DCT) hardware unit. The D...
12/09/2010
20100205235M-SEQUENCE GENERATOR, PROVIDING METHOD THEREOF, AND RANDOM ERROR GENERATING DEVICE IN WHICH M-SEQUENCE GENERATOR IS USED
An M-sequence generator includes EXCLUSIVE-OR gates feeding back pieces of bit data from m number of series registers to the registers in response to a clock. A period of a cyclic group {(α1k), (α2k), (α3k), . . . } falls within a max...
08/12/2010
20100198894Digital Signal Processor Having Instruction Set With An Exponential Function Using Reduced Look-Up Table
A digital signal processor is provided having an instruction set with an exponential function that uses a reduced look-up table. The disclosed digital signal processor evaluates an exponential function for an input value, x, by decomposing the input value, x, to an inte...
08/05/2010
20100198897DERIVING A FUNCTION THAT REPRESENTS DATA POINTS
A function that represents data points is derived by creating a matrix (e.g., a Hankel matrix) of an initial rank, where the matrix contains the data points. Singular values are derived based on the matrix, and it is determined whether a particular one of the singular v...
08/05/2010
20100179976SEMICONDUCTOR DEVICE PERFORMING OPERATIONAL PROCESSING
A semiconductor device includes a decoder receiving first multiplier data of 3 bits indicating a multiplier to output a shift flag, an inversion flag, and an operation flag in accordance with Booth's algorithm, and a first partial product calculation unit receiving firs...
07/15/2010
20100169398METHOD AND APPARATUS HAVING A MEASURED VALUE INPUT FOR APPLYING A MEASURED VALUE
The invention pertains to a device such as a sensor, operator device, communication device, or a liquid level metering device, with a measured value input to apply a measured value. The device includes at least a first memory region to provide for an adjustment factor, ...
07/01/2010
20100153477METHOD OF CALCULATING TRANSPORT BLOCK SIZES IN COMMUNICATION SYSTEM
A method of calculating a transport block size in an HSPA receiver of a communication system is provided. After decomposing an exponential function Pk into a plurality of constant vectors, the invention needs only little memory space and executes few continue...
06/17/2010
20100124302METHODS FOR DETERMINING A REFERENCE SIGNAL AT ANY LOCATION ALONG A TRANSMISSION MEDIA
Methods (200, 300) for determining a reference signal (Vref). The methods involve (202, 204, 302, 304) sensing at a first location along the transmission media (108, 502) a first signal (Vf) propagated thereover in a forward di...
05/20/2010
20100111415COMPUTATIONS OF POWER FUNCTIONS USING POLYNOMIAL APPROXIMATIONS
A power function is approximated over an applicable data interval with polynomials determined by means of a Chebyshev minimax approximation technique. In some cases, multiple polynomials may be used to approximate the function over respective ranges of the desirable int...
05/06/2010
20100106763RMS Metering Devices and Methods
Embodiments of the present invention provide systems, devices and methods for efficiently calculating a true RMS values (either voltage or current) of an AC signal. The RMS value is generated from both high and low frequency components of the AC signal without a high sp...
04/29/2010
20100101411CHROMATOGRAPHY SYSTEMS AND METHODS USING THEM
Certain embodiments described herein are directed to chromatography systems that include a microfluidic device. The microfluidic device can be fluidically coupled to a switching valve to provide for selective control of fluid flow in the chromatography system. In some e...
04/29/2010
20100063986COMPUTING DEVICE, METHOD, AND COMPUTER PROGRAM PRODUCT
In a computing device that calculates a square of an element in a finite field, a vector representation of the element in the finite field is accepted. The vector representation includes a plurality of elements. The computing device performs a multiplication operation o...
03/11/2010
20100017451Binary Number Multiplying Method and Circuit
A multiplier and a method multiply, using an array of adders, two binary numbers X and Y defining a matrix [Eni=xn−i·yi], wherein the initial matrix [Eni=xn−i·yi] is transforme...
01/21/2010
20100005131Power-residue calculating unit and method of controlling the same
A power-residue calculating unit according to one embodiment of the present invention includes a multiplication residue calculating unit performing a multiplication calculation and a residue calculation based on a multiplicand, a multiplier, and a divisor, a power stori...
01/07/2010
20090238360EXPONENTIATION LADDER FOR CRYPTOGRAPHY
Method and apparatus for data security using exponentiation. This is suitable for public key cryptography authentication and other data security applications using a one-way function. A type of exponentiation is disclosed here where the bits of an exponent value express...
09/24/2009
20090228353QUERY CLASSIFICATION BASED ON QUERY CLICK LOGS
Methods are provided for the classification of search engine queries and associated documents based on search engine query click logs. One or more seed documents or queries are provided that contain content that is representative of a category. A query click log contain...
09/10/2009
20090172068METHOD AND APPARATUS FOR EFFICIENTLY IMPLEMENTING THE ADVANCED ENCRYPTION STANDARD
Implementations of Advanced Encryption Standard (AES) encryption and decryption processes are disclosed. In one embodiment of S-box processing, a block of 16 byte values is converted, each byte value being converted from a polynomial representation in GF(256) to a polyn...
07/02/2009
20090157788MODULAR SQUARING IN BINARY FIELD ARITHMETIC
After squaring an element of a binary field, the squaring result may be reduced modulo the field-defining polynomial g bits at a time. To this end, a lookup table may be employed, where the lookup table stores entries corresponding to reducing g-bit-long polynomials mod...
06/18/2009
20090119358Computational method, system, and apparatus
A method, system, and apparatus for performing computations.

In a method, arguments X and K are loaded into session memory, and X mod P and X mod Q are computed to give, respectively, XP and XQ. XP and X

05/07/2009
20090112962MODULAR SQUARING IN BINARY FIELD ARITHMETIC
After squaring an element of a binary field, the squaring result may be reduced modulo the field-defining polynomial g bits at a time. To this end, a lookup table may be employed, where the lookup table stores entries corresponding to reducing g-bit-long polynomials mod...
04/30/2009
200801336340.75-POWER COMPUTING APPARATUS AND METHOD
A 0.75-power computation apparatus and method are provided in which the range of an input value X is divided into a predetermined number areas, a 0.75 power of the input value X is represented as a predetermined approximation polynomial, coefficients for the approximati...
06/05/2008
20070192397Cryptosystem Based on a Jacobian of a Curve
A cryptosystem has a secret based on an order of a group of points on a Jacobian of a curve. In certain embodiments, the cryptosystem is used to generate a product identifier corresponding to a particular product. The product identifier is generated by initially receivi...
08/16/2007
 
Sign InRegister
Username  
Password   
forgot password?