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Wallet Terminal Keyboard With Acoustic Coupler

IP.com Disclosure Number: IPCOM000093256D
Original Publication Date: 1967-Aug-01
Included in the Prior Art Database: 2005-Mar-06
Document File: 2 page(s) / 58K

Publishing Venue

IBM

Related People

Davis, MF: AUTHOR [+2]

Abstract

This universal, portable alphanumeric keyboard 10 is used with a telephone to communicate with a computer. Keyboard 10 contains a series of key tops 11 over flat elastic diaphragm switches. It can be folded at hinge 12 and carried in a pocket. Wallet keyboard 10, when opened, also has battery 13 and stored part 14 of an acoustic coupler the other part 15 of which is snapped onto receiver 16 of ordinary telephone handset 17.

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Wallet Terminal Keyboard With Acoustic Coupler

This universal, portable alphanumeric keyboard 10 is used with a telephone to communicate with a computer. Keyboard 10 contains a series of key tops 11 over flat elastic diaphragm switches. It can be folded at hinge 12 and carried in a pocket. Wallet keyboard 10, when opened, also has battery 13 and stored part 14 of an acoustic coupler the other part 15 of which is snapped onto receiver 16 of ordinary telephone handset 17.

Part 14, which is attached to keyboard cover 18, is formed with a circle of ball-ended connector projections 19 or oversize beads. These flexibly receive and hold the rims of openings 20 formed in a similarly sized circle in removable coupler part 15. A similar form of snap connection holds coupler 15 onto receiver 16 to enable the transmission of the key coded data representing signals.

The device makes possible communication with a computer wherever there is a telephone so connected. This flat keyboard, in using the shallow depth advantages of elastic diaphragm contact switches, is easy to carry. Keyboard 10, when folded into a closed position including coupler part 15, is no larger than a wallet and can be carried in a pocket. Since coupler 15 is of a yo-yo shape with a central opening, it allows voice input with acoustic coupler 15 in position on the telephone receiver, and has the further advantage that annular groove 21 provides storage space for connection wire 22.

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