Patent · US Expired

Method of printing characters in typewriters or similar office machines

US4737044A · kind A · utility

1Cited by
8References
5Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJan 30, 1987
Grant dateApr 12, 1988
Priority date
Expiry dateJan 30, 2007

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB41J9/48
  • WIPO fieldTextile and paper machines
  • WIPO sectorMechanical engineering

Abstract

A code generated by a keyboard or external data source is first converted to an ordinal number code which is processed by first and second algorithms to generate a typing force index and a character type location identifier respectively. The typing force index is used as a variable in an equation whose solution provides typing force information, and the character location identifier is used to calculate character type location information. The information is utilized to position a selected character on a print wheel and to print the selected character with a force depending on the area of the character.

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