Browse Prior Art Database

Data Entry Unit

IP.com Disclosure Number: IPCOM000082341D
Original Publication Date: 1974-Nov-01
Included in the Prior Art Database: 2005-Feb-28
Document File: 6 page(s) / 123K

Publishing Venue

IBM

Related People

Dimmick, RF: AUTHOR [+7]

Abstract

This data entry unit allows data to be entered from two different types, of document cards 100 and 116 (which may be considered, respectively, as a card and a badge). The data entry unit is attached to an IBM 2790 loop by an IBM 2793 or IBM 2791 area station equipped with an IBM 2798 adaptor, or to any controller which presents the same interface as the IBM 2798 adaptor.

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Data Entry Unit

This data entry unit allows data to be entered from two different types, of document cards 100 and 116 (which may be considered, respectively, as a card and a badge). The data entry unit is attached to an IBM 2790 loop by an IBM 2793 or IBM 2791 area station equipped with an IBM 2798 adaptor, or to any controller which presents the same interface as the IBM 2798 adaptor.

Card 100 is the standard IBM System/3 document card, and the data entry unit utilizes only data which is punched at holes 108 in tier 3 of card 100. In addition, a punched hole 108a is provided in each of columns 33 to 64 (tier 2) for synchronizing purposes. Badge 116 is about the same size as document card 100 and constitutes an end of the standard IBM 80 column document card. Only the last eleven columns (columns 69 to 80) of badge 116 have punched openings. The openings in columns 70 to 80 carry data information, and a punched hole 118a is provided in each of the rows of badge 116 in column 69 corresponding to the synchronizing holes 108a of card 100.

In obtaining the same reading action with respect to both card and badge, cards 100 and badges 116 are inserted into the data entry unit in the directions X and x, and the cards travel through the data entry unit after such insertion in the directions Y and y. The centers of the holes 118 in adjacent columns have the same spacing of 0.087 inch as the spacing between adjacent holes 108, and this allows the card and badge to be used with the same read head 120 (see Fig. 6), although additional read station elements are needed for the badge 116.

The data entry unit comprises a casing 130 (see Fig. 3) having a pair of top panels 132 and 134. Keyboard 136 is disposed on panel 132, and a horizontal slot 138 for receiving either card 110 or badge 116 is provided in panel 134. A document card transport 142 (Fig. 5) beneath panel 134 provides a slot 148 in register with slot 138, so that card 100 or badge 116 may travel, respectively, in directions Y and y through slots 138 and 148, with the cards protruding from the machine as shown in Fig. 6.

A pair of card transport rolls 150 and 152 (Figs. 4 and 5) extend into slot 148 and are truncated in cross-section, so that a card 100 or badge 116 may be slipped easily over the outer surface of rolls 150 and 152. Balls 166 and 168, acted on by leaf springs 170 and 172, hold a card 100 or badge 116 in friction contact with rolls 100 and 152 as the card or badge travels through slots 138 and 148. Read head 120 is disposed between rolls 150 and 152 and comprises eleven light-emitting diodes (LED's) 178 disposed in a row over a row of 11 phototransistors 180, each of diodes 178 being in register with one of the phototransistors 880

A fixed rail 182 (Fig. 5) forms the end of slot 148 and is adapted to be contacted by the edge 116a of badge 116 moving in direction x. A moveable rail 184 is pivotally mounted and is actuated by an electromagnet 100 and is moved upwardly to...