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Class Information
Number: 708/492
Name: Electrical computers: arithmetic processing and calculating > Electrical digital calculating computer > Particular function performed > Arithmetical operation > Galois field
Description: Subject matter where the arithmetical operations are performed on a 2 m element finite arithmetic field.










Patents under this class:
1 2 3 4 5 6 7

Patent Number Title Of Patent Date Issued
5448639 Digital signature device Sep. 5, 1995
5448510 Method and apparatus for producing the reciprocal of an arbitrary element in a finite field Sep. 5, 1995
5446745 Apparatus for correcting errors in optical disks Aug. 29, 1995
5442578 Calculating circuit for error correction Aug. 15, 1995
5414719 Operating circuit for galois field May. 9, 1995
5396502 Single-stack implementation of a Reed-Solomon encoder/decoder Mar. 7, 1995
5379243 Method and apparatus for performing finite field division Jan. 3, 1995
5367478 Mutual division circuit Nov. 22, 1994
5367479 Divider device to divide a first polynomial by a second one Nov. 22, 1994
5272661 Finite field parallel multiplier Dec. 21, 1993
5227992 Operational method and apparatus over GF(2.sup.m) using a subfield GF(2.sup . Jul. 13, 1993
5210710 Modulo arithmetic processor chip May. 11, 1993
5206824 Method and apparatus for exponentiation over GF(2.sup.n) Apr. 27, 1993
5185711 Apparatus for dividing elements of a finite galois field and decoding error correction codes Feb. 9, 1993
5148480 Decoder Sep. 15, 1992
5136592 Error detection and correction system for long burst errors Aug. 4, 1992
5101431 Systolic array for modular multiplication Mar. 31, 1992
5046037 Multiplier-adder in the Galois fields, and its use in a digital signal processing processor Sep. 3, 1991
4994995 Bit-serial division method and apparatus Feb. 19, 1991
4989171 Data processing method and apparatus for calculating a multiplicatively inverted element of a finite field Jan. 29, 1991
4975867 Apparatus for dividing elements of a Galois Field GF (2.sup.QM) Dec. 4, 1990
4918638 Multiplier in a galois field Apr. 17, 1990
4891781 Modulo arithmetic processor chip Jan. 2, 1990
4890252 Long period pseudo random number sequence generator Dec. 26, 1989
4866654 Digital multiplying circuit Sep. 12, 1989
4847801 Compact galois field multiplier Jul. 11, 1989
4800515 Circuit for operating finite fields Jan. 24, 1989
4797848 Pipelined bit-serial Galois Field multiplier Jan. 10, 1989
4745568 Computational method and apparatus for finite field multiplication May. 17, 1988
4697248 Arithmetic circuit for obtaining the vector product of two vectors Sep. 29, 1987
4587627 Computational method and apparatus for finite field arithmetic May. 6, 1986
4574361 Apparatus for dividing the elements of a Galois field Mar. 4, 1986
4567568 Apparatus for dividing the elements of a Galois field Jan. 28, 1986
4538240 Method and apparatus for performing hashing operations using Galois field multiplication Aug. 27, 1985
4473887 Processing circuit for operating on elements of a Galois field Sep. 25, 1984
4251875 Sequential Galois multiplication in GF(2.sup.n) with GF(2.sup.m) Galois multiplication gates Feb. 17, 1981
4162480 Galois field computer Jul. 24, 1979
4099160 Error location apparatus and methods Jul. 4, 1978
4037093 Matrix multiplier in GF(2.sup.m) Jul. 19, 1977

1 2 3 4 5 6 7










 
 
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