Data input apparatus having bidirectional reader for inputting a

Details Data input apparatus having bidirectional reader for inputting a Data input apparatus having bidirectional reader for inputting a

1973-07-16

1977-08-23

Chapnick, Melvin B.

Boots, shoes, and leggings

235 617B, 340149R, G06F 1100, G06K 918, G06K 1906, H04Q 900

Patent

active

040443310

ABSTRACT:
A data entry system suitable for entry/exit (attendance) recording includes a terminal unit having identity card reading means, adapted to be connected via an extension line to a central apparatus such as a computer controlled telephone line switching system having data handling capabilities. The terminal unit includes a buffer to store the data read from the identity card prior to requesting service from the line switching system and includes a locally generated signal to indicate that the card was correctly read and means responsive to a signal from the central system to indicate that the data was accepted. The card forms a component of the system and is encoded in such fashion that the manner of its use indicates whether entry or exit information is being recorded, and the terminal unit is responsive to the information entered by the card and the response of the central system to provide appropriate logical output at the terminal, such as the activation of an automatic door lock.

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IBM Technical Disclosure Bulletin, vol. 15, No. 10, Mar. 1973, pp. 3156-3159, Hand Fed Card Reader by Hobbs and Miller.

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