45results about How to "Efficient multiplication" patented technology

Providing efficient multiplication of sparse matrices in matrix-processor-based devices is disclosed herein. In one aspect, a matrix processor of a matrix-processor-based device includes a plurality of sequencers coupled to a plurality of multiply / accumulate (MAC) units for performing multiplication and accumulation operations. Each sequencer determines whether a product of an element of a first input matrix to be multiplied with an element of a second input matrix has a value of zero (e.g., by determining whether the element of the first input matrix has a value of zero, or by determining whether either the element of the first input matrix or that of the second input matrix has a value of zero). If the product of the elements of the first input matrix and the second input matrix does not have a value of zero, the sequencer provides the elements to a MAC unit to perform a multiplication and accumulation operation.

A method of elliptic curve encryption includes, (a) selecting an elliptic curve Ep (a,b) of the form y2=x3+ax+b mod (p) wherein a and b are non-negative integers less than p satisfying the formula 4 a3+27b2 mod (p) not equal to 0; (b) generating a large 160 bit random number by a method of concatenation of a number of smaller random numbers; (c) generating a well hidden point G (x,y) on the elliptic curve Ep (a,b) by scalar multiplication of a point B (x,y) on the elliptic curve with a large random integer which further includes the steps: (i) converting the large random integer into a series of powers of 231; (ii) converting each coefficient of 231 obtained from above step into a binary series; (iii) multiplication of binary series obtained from steps (i) and (ii) above with the point B (x,y) on the elliptic curve; (d) generating a private key nA (of about >=160 bit length); (e) generating a public key PA (x,y) given by the formula PA (x,y)=(nA−G (x,y)) mod (p); (f) encrypting the input message MSG; (g) decrypting the ciphered text.

The present invention relates to constructs, vectors, relative host cells and pharmaceutical compositions which allow an effective gene therapy, in particular of genes larger than 5 Kb.

Providing efficient multiplication of sparse matrices in matrix-processor-based devices is disclosed herein. In one aspect, a matrix processor of a matrix-processor-based device includes a plurality of sequencers coupled to a plurality of multiply / accumulate (MAC) units for performing multiplication and accumulation operations. Each sequencer determines whether a product of an element of a first input matrix to be multiplied with an element of a second input matrix has a value of zero (e.g., by determining whether the element of the first input matrix has a value of zero, or by determining whether either the element of the first input matrix or that of the second input matrix has a value of zero). If the product of the elements of the first input matrix and the second input matrix does not have a value of zero, the sequencer provides the elements to a MAC unit to perform a multiplication and accumulation operation.

The present invention discloses a method for rapid propagation of the scion root young clone of Hevea brasiliensis with embryoid; the method is characterized in that the method comprises an anther embryonic callus inducement process, an embryogenesis process of primary body, a secondary embroid inducement process and a plant regeneration process. The present invention is provided with simple process flow and low production cost; at the same time, the present invention solves the problem of repeated, low-efficiency, arduous physical labor to continuously collect buds or fruit and continuously induce the embryonic callus with traditional method; with the method, people can obtain a large number of ripe embryos fast continuously with low cost and realize the proliferation of embryo; the high-efficiency propagation of the scion root young clone of Hevea brasiliensis is realized and the propagation efficiency of scion root clone is promoted; in this way, the production efficiency of Hevea brasiliensis scion root clone plant in factory is greatly increased.

System and method for processing symbols in a communication system are disclosed and may include in a processor that receives symbols to be coded for transmission over a wireless medium, grouping elements of an input matrix across a second dimension of the input matrix to form groups of matrix elements while multiplying the input matrix and an input vector. The input vector may include the symbols to be coded for transmission over the wireless medium. The method may also include pre-computing possible permutations of partial results for each of the groups of matrix elements, and assigning the partial results from each of the groups of matrix elements to each of a corresponding index of a first dimension of the input matrix to form a matrix of assigned partial results.