Patent · US Expired

Programmable plug and cable for computer keyboards

US5144567A · kind A · utility

28Cited by

21References

9Claims

0Family size

Assignee

Preh-Werke GmbH & Co. KG · DE

Inventors

Jurgen Oelsch · Bad Neustadt an der Saale, DE
Gerhard Hochgesang · Bad Neustadt an der Saale, DE
Rudolf Limpert · Strahlungen, DE
Dieter Weber · Leonberg, DE

Key dates

Filing date	Feb 27, 1989
Grant date	Sep 1, 1992
Priority date	—
Expiry date	Feb 27, 2009

Classification

Technology area (CPC H)Electricity
CPC primaryH01H2300/04
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

A data input device for an electronic data processing device such as a personal computer includes an input keyboard, which has a key field, a casing and a plug-in receptacle for a keyboard plug on a circuit connector; and a connector, such as a junction cable, which has a keyboard plug which fits into the receptacle on the keyboard, a circuit connector which is a connection wire, a plug at the end of the connection wire connecting with the electronic data processing device, and programmable encoder electronics for encoding unique signals corresponding to each key in the key field on the keyboard. A portion of the encoder electronics, in which the program relating the keyboard to the electronic data processing device is encoded, is located within the keyboard plug and not within the keyboard itself.

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