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Machine Readable Identification of Printed Circuit Cards

IP.com Disclosure Number: IPCOM000094444D
Original Publication Date: 1965-Jan-01
Included in the Prior Art Database: 2005-Mar-06
Document File: 2 page(s) / 22K

Publishing Venue

IBM

Related People

Ferguson, DK: AUTHOR

Abstract

A method of machine-identifying printed circuit cards for automatic testing by an acceleration transducer is realized by notching the cards to be read.

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Machine Readable Identification of Printed Circuit Cards

A method of machine-identifying printed circuit cards for automatic testing by an acceleration transducer is realized by notching the cards to be read.

Printed circuit cards 10 and 11 are advanced beneath the stylus of acceleration transducer 12 connected to reader 13. Notches 14 are located so as to identify the part number or the like of card 10 by producing a deflection of transducer 12 which produces a pulse pattern to be sensed by reader 13.

Notches 14 have an initial steep drop followed by a gradual sloping rise so that the card can be read only when properly oriented. Card 11 has V-notches which can be machined more economically.

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