The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 09, 1987
Filed:
Sep. 30, 1983
Applicant:
Inventors:
John J Bradley, Framingham, MA (US);
Brian L Stoffers, N. Billerica, MA (US);
Melinda A Widen, Arlington, MA (US);
Assignee:
Honeywell Information Systems Inc., Waltham, MA (US);
Primary Examiner:
Int. Cl.
CPC ...
H03M / ;
U.S. Cl.
CPC ...
3403 / ; 364715 ;
Abstract
A data processing system having a central processing unit (CPU) capable of performing binary and decimal arithmetic software instructions is disclosed. Also disclosed is a method and apparatus for speeding conversion of a number in binary format to decimal format by first stripping leading zeroes before the highest order non-zero bit of the binary number, and only allocating enough memory storage bits to hold the resultant decimal number. A multiplexer is used to apply a partial sum during conversion concurrently to both inputs of an adder for doubling.