Patent · US Expired

Intellectual properties protection device

US4488001A · kind A · utility

8Cited by
3References
9Claims
0Family size

Assignee

Inventors

Key dates

Filing dateDec 17, 1981
Grant dateDec 11, 1984
Priority date
Expiry dateDec 17, 2001

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH04L2209/34
  • WIPO fieldDigital communication
  • WIPO sectorElectrical engineering

Abstract

A device for deciphering encoded information is disclosed which comprises logic elements which combine a key input to implement a predetermined set of boolean transformations thereby yielding a corresponding set of translation terms. The translation terms are subsequently combined with corresponding encoded information to yield deciphered information.

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