Browse Prior Art Database

Cordless Keyboard

IP.com Disclosure Number: IPCOM000046397D
Original Publication Date: 1983-Jul-01
Included in the Prior Art Database: 2005-Feb-07
Document File: 1 page(s) / 11K

Publishing Venue

IBM

Related People

Arthur, TG: AUTHOR [+2]

Abstract

For eliminating the external cable connection between a keyboard and a display set in a terminal workstation, the keyboard is provided with a transmitter and self-contained power supply, and the display head with a receiver. Using this design, flexibility in workstation arrangement, easier set-up and ease of serviceability are provided. By using a unidirectional transmitter, potential interference with other nearby workstations is virtually eliminated.

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Cordless Keyboard

For eliminating the external cable connection between a keyboard and a display set in a terminal workstation, the keyboard is provided with a transmitter and self-contained power supply, and the display head with a receiver. Using this design, flexibility in workstation arrangement, easier set-up and ease of serviceability are provided. By using a unidirectional transmitter, potential interference with other nearby workstations is virtually eliminated.

Depression of a key or a sequence of keys results in the transmission of a signal. If key encoding is used, the transmitted signal represents the unique key depressed and character encoding is performed in the display head. If character encoding is used in the keyboard, the transmitted signal represents a character generated by a key or key sequence. In either event, the transmitted signal is unique for each key or character. In the display head, the receiver accepts the signals sent from the keyboard and routes them to a translator or encoder, as appropriate.

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