Patent · US Expired

Binary coded decimal number division apparatus

US4603397A · kind A · utility

10Cited by
5References
4Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJan 31, 1983
Grant dateJul 29, 1986
Priority date
Expiry dateJan 31, 2003

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG06F7/4917
  • WIPO fieldComputer technology
  • WIPO sectorElectrical engineering

Abstract

In preparation of addresses of a quotient prediction table used in a binary coded decimal number division scheme with predetermined bits of a dividend and a divisor in binary coded decimal representation, the addresses are modified with the redundant bits. The absolute bit number for the addresses is thus decreased, whereby data quantity and hence capacity of RAM required for implementing the quotient prediction table can be significantly reduced, while satisfactory function of the quotient prediction table being assured. The apparatus for the binary coded decimal number division is implemented inexpensively in a small size.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.