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Card ID Hole Count Pattern for Printed Circuit Card

IP.com Disclosure Number: IPCOM000101084D
Original Publication Date: 1990-Jun-01
Included in the Prior Art Database: 2005-Mar-16
Document File: 1 page(s) / 29K

Publishing Venue

IBM

Related People

Miura, S: AUTHOR [+2]

Abstract

A card ID (identification) hole count pattern is provided on a printed circuit card to visually inspect whether a correct number of card ID holes are drilled in the card ID area of the card.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 100% of the total text.

Card ID Hole Count Pattern for Printed Circuit Card

       A card ID (identification) hole count pattern is provided
on a printed circuit card to visually inspect whether a correct
number of card ID holes are drilled in the card ID area of the card.

      As shown in the figure, a hole count area which includes a land
pattern for card ID hole counting is formed near the card ID area of
a printed circuit card.  In the example shown, the pattern includes
seven etched lands 1-7. The card ID area also includes a land
pattern.  The card ID is written in the card by drilling holes in
selected lands of the card ID area in accordance with the type or
function of the card.  Holes equal in number to the holes to be
drilled in the card ID area are drilled in the lands of the hole
count area.  Therefore, it is possible to visually check whether the
card ID area has a correct number of drilled holes by making a
comparison between the numbers of the drilled holes in the card ID
area and the hole count area.