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Browse Prior Art Database

Keyboard Transducer

IP.com Disclosure Number: IPCOM000094728D
Original Publication Date: 1965-May-01
Included in the Prior Art Database: 2005-Mar-06
Document File: 2 page(s) / 31K

Publishing Venue

IBM

Related People

Kuntzleman, HC: AUTHOR

Abstract

This flexible, plastic overlay 10 is for any standard keyboard. Overlay 10 can be vacuum formed. It includes a thin-film circuit configuration with a membrane contact type switch 11 in each of the key positions. The circuit configurations are connected with a terminal 12 at the edge of the overlay 10 and are adapted for cable connection with other equipments.

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Keyboard Transducer

This flexible, plastic overlay 10 is for any standard keyboard. Overlay 10 can be vacuum formed. It includes a thin-film circuit configuration with a membrane contact type switch 11 in each of the key positions. The circuit configurations are connected with a terminal 12 at the edge of the overlay 10 and are adapted for cable connection with other equipments.

On each key actuation, an electrical character representing signal is generated for transmission to other utilization means. Such overlay 10 eliminates the modification to standard keyboard structures or the attachments of expensive transducing devices to each key stem for generating the character-representing electrical signals.

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