Spirally arranged bar code
First Claim
1. A bar code device comprising,an elongated member having a circumferential surface and at least a predetermined longitudinal length, anda bar code spirally provided on the circumferential surface of the elongated member, said bar code completely surrounding an entire area of the circumferential surface of the elongated member in said predetermined longitudinal length so that when the bar code is scanned with respect to a sensor for reading the bar code in one of a longitudinal direction of the elongated member for the predetermined longitudinal length and a direction perpendicular to the longitudinal direction along the circumferential surface of the elongated member, the bar code is surely ready.
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Accused Products
Abstract
A bar code is formed of a number of parallel bars adapted to be provided circumferentially on a tubular or rod-like work and extend spirally about the center line of the work. In an alternative form, the bar code includes a number of parallel bars each adapted to extend continuously along the entire length of the work. In another alternative form, the bar code includes a number of parallel bars adapted to be provided on the surface of a belt-like work and each adapted to extend continuously along the entire length of the work.
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Citations
13 Claims
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1. A bar code device comprising,
an elongated member having a circumferential surface and at least a predetermined longitudinal length, and a bar code spirally provided on the circumferential surface of the elongated member, said bar code completely surrounding an entire area of the circumferential surface of the elongated member in said predetermined longitudinal length so that when the bar code is scanned with respect to a sensor for reading the bar code in one of a longitudinal direction of the elongated member for the predetermined longitudinal length and a direction perpendicular to the longitudinal direction along the circumferential surface of the elongated member, the bar code is surely ready.
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10. A bar code device comprising,
an elongated member having a circumferential surface and at least a predetermined longitudinal length, and a plurality of bar codes arranged parallel to each other and spirally provided on the circumferential surface of the elongated member, a complete bar code being shown on any part of the circumferential surface in and along the predetermined longitudinal length so that when the bar code is scanned with respect to a sensor for reading the bar code along a completely circumferential surface of the elongated member in the predetermined longitudinal length, the bar code is read at least twice, and when the bar code is scanned in one of a longitudinal direction of the elongated member for the predetermined longitudinal length and a direction perpendicular to the longitudinal direction along the circumferential surface of the elongated member, the bar code is surely read.
Specification