| Patent Number |
Title Of Patent |
Date Issued |
| 5633819 |
Inexact leading-one/leading-zero prediction integrated with a floating-point adder |
May. 27, 1997 |
| 5627773 |
Floating point unit data path alignment |
May. 6, 1997 |
| 5568412 |
Rounding-off method and apparatus of floating point arithmetic apparatus for addition/subtraction |
Oct. 22, 1996 |
| 5490100 |
Cumulative summation unit |
Feb. 6, 1996 |
| 5483476 |
Mantissa addition system for a floating point adder |
Jan. 9, 1996 |
| 5424968 |
Priority encoder and floating-point adder-substractor |
Jun. 13, 1995 |
| 5408426 |
Arithmetic unit capable of performing concurrent operations for high speed operation |
Apr. 18, 1995 |
| 5408427 |
Detection of exponent underflow and overflow in a floating point adder |
Apr. 18, 1995 |
| 5373461 |
Data processor a method and apparatus for performing postnormalization in a floating-point execution unit |
Dec. 13, 1994 |
| 5369607 |
Floating-point and fixed-point addition-subtraction assembly |
Nov. 29, 1994 |
| 5359548 |
Floating-point arithmetic system having multiple-input addition and subtraction means |
Oct. 25, 1994 |
| 5357237 |
In a data processor a method and apparatus for performing a floating-point comparison operation |
Oct. 18, 1994 |
| 5343413 |
Leading one anticipator and floating point addition/subtraction apparatus |
Aug. 30, 1994 |
| 5337265 |
Apparatus for executing add/sub operations between IEEE standard floating-point numbers |
Aug. 9, 1994 |
| 5317527 |
Leading one/zero bit detector for floating point operation |
May. 31, 1994 |
| 5303174 |
Floating pointing arithmetic operation system |
Apr. 12, 1994 |
| 5282156 |
Leading one anticipator and floating point addition/subtraction apparatus employing same |
Jan. 25, 1994 |
| 5276634 |
Floating point data processing apparatus which simultaneously effects summation and rounding computations |
Jan. 4, 1994 |
| 5247471 |
Radix aligner for floating point addition and subtraction |
Sep. 21, 1993 |
| 5222037 |
Floating-point processor for performing an arithmetic operation on fixed-point part data with high speed rounding of a result |
Jun. 22, 1993 |
| 5200916 |
Mantissa processing circuit of floating point arithmetic apparatus for addition and subtraction |
Apr. 6, 1993 |
| 5197023 |
Hardware arrangement for floating-point addition and subtraction |
Mar. 23, 1993 |
| 5166898 |
Shift amount floating-point calculating circuit with a small amount of hardware and rapidly operable |
Nov. 24, 1992 |
| 5146419 |
Floating point addition-subtraction apparatus |
Sep. 8, 1992 |
| 5136536 |
Floating-point ALU with parallel paths |
Aug. 4, 1992 |
| 5117384 |
Method and apparatus for exponent adder |
May. 26, 1992 |
| 5111421 |
System for performing addition and subtraction of signed magnitude floating point binary numbers |
May. 5, 1992 |
| 5086405 |
Floating point adder circuit using neural network |
Feb. 4, 1992 |
| 5063530 |
Method of adding/subtracting floating-point representation data and apparatus for the same |
Nov. 5, 1991 |
| 5027308 |
Circuit for adding/subtracting two floating point operands |
Jun. 25, 1991 |
| 5021986 |
Total sum calculation circuit capable of rapidly calculating a total sum of more than two input data represented by a floating point representation |
Jun. 4, 1991 |
| 5016209 |
Floating-point addition/subtraction system with digit position alignment between fractions of multiple sets of data |
May. 14, 1991 |
| 5010509 |
Accumulator for complex numbers |
Apr. 23, 1991 |
| 5010508 |
Prenormalization for a floating-point adder |
Apr. 23, 1991 |
| 4999803 |
Floating point arithmetic system and method |
Mar. 12, 1991 |
| 4999800 |
Floating point adder with pre-shifter |
Mar. 12, 1991 |
| 4994996 |
Pipelined floating point adder for digital computer |
Feb. 19, 1991 |
| 4979141 |
Technique for providing a sign/magnitude subtraction operation in a floating point computation unit |
Dec. 18, 1990 |
| 4943941 |
Floating point processor employing counter controlled shifting |
Jul. 24, 1990 |
| 4931979 |
Adding apparatus having a high accuracy |
Jun. 5, 1990 |
| 4926369 |
Leading 0/1 anticipator (LZA) |
May. 15, 1990 |
| 4922446 |
Apparatus and method for floating point normalization prediction |
May. 1, 1990 |
| 4908788 |
Shift control signal generation circuit for floating-point arithmetic operation |
Mar. 13, 1990 |
| 4907185 |
Program-controlled computer with an interrupt capability for floating-point operation |
Mar. 6, 1990 |
| 4896286 |
Floating-point arithmetic apparatus |
Jan. 23, 1990 |
| 4887232 |
Apparatus and method for performing a shift operation in a multiplier array circuit |
Dec. 12, 1989 |
| 4879676 |
Method and apparatus for precise floating point exceptions |
Nov. 7, 1989 |
| 4872132 |
Method and means for block floating point arithmetic |
Oct. 3, 1989 |
| 4866652 |
Floating point unit using combined multiply and ALU functions |
Sep. 12, 1989 |
| 4866651 |
Method and circuit arrangement for adding floating point numbers |
Sep. 12, 1989 |
