Patent · US Expired

Control panel self-test

US4187540A · kind A · utility

3Cited by
6References
14Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJan 18, 1978
Grant dateFeb 5, 1980
Priority date
Expiry dateJan 18, 1998

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG06F11/2221
  • WIPO fieldComputer technology
  • WIPO sectorElectrical engineering

Abstract

A control panel which provides an interface to a digital computer, and which comprises at least a data input device such as a keyboard and a data output device such as an alphanumeric display or a light emitting diode display, is tested without the use of the digital computer. The digital computer is disconnected or bypassed and the timing and other functions of the computer are simulated to enable an independent test of the data input device and the data output device which make up at least a part of the control panel.

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