Browse Prior Art Database

Characters with External Code Dial

IP.com Disclosure Number: IPCOM000089973D
Original Publication Date: 1968-Dec-01
Included in the Prior Art Database: 2005-Mar-05
Document File: 2 page(s) / 27K

Publishing Venue

IBM

Related People

Boomsma, JFC: AUTHOR

Abstract

Characters are provided with an external coding by placing them on a clock dial provided with voids at the hour points and filling up one or more voids. The voids can be part of a circular or rectangular ring or just positions defined by a small square or circle.

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Characters with External Code Dial

Characters are provided with an external coding by placing them on a clock dial provided with voids at the hour points and filling up one or more voids. The voids can be part of a circular or rectangular ring or just positions defined by a small square or circle.

The normal IBM code can be used if 0 is identified with 10, 3 is then characterized by a mark at the 3 hours, X by marks at 0 hour and 7 hours. Instead of the IBM code, another arbitrary code or one derived from the shape of the characters can be used.

The code can be sensed by circularly scanning with a rotating beam, by horizontally scanning with a column of sensors or by scanning by a ring of photosensors, corresponding to the hour points. If a single rotating beam is used, it searches for a synchronization mark and then moves along the ring. If a column of sensors is used, the synchronization mark serves to identify between left-hand and right-hand sides. If a ring of sensors similar to the dial ring is used, one sensor ascertains that the sensor ring is aligned with the marking ring and activates the other sensors.

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