Claims
- 1. A method for marking a substrate with a bar code, said method comprising the step of:
- providing adjacently positioned groups of sequences of marks, said groups including four substantially uniformly wide marks of a first width, W.sub.1, at selectively spaced intervals within said groups, and also including an equal number of blank intervals within each of said groups, said individual blank intervals having a plurality of different widths which are integral multiples of a second width, W.sub.2, and wherein in at least one group there is a blank interval which has a width which is three times said second width, said groups thus being such that each group has a width substantially equal to (4W.sub.1 +8W.sub.2) and wherein said groups include an end mark in the form of a single width blank interval followed by a mark at the end of said groups of sequences.
- 2. The method of claim 1 in which said substantially uniformly wide marks are spaced to represent up to 35 different symbols.
- 3. The method of claim 1 in which said substantially uniformly wide marks are spaced to represent a plurality of distinct symbols in such a way that the largest distance between adjacent bars for different symbols is 5W.sub.1.
- 4. A substrate having identifying information comprising adjacently positioned groups of sequences of marks, said groups including four substantially uniformly wide marks of a first width, W.sub.1, at selectively spaced intervals within said groups, and also including an equal number of blank intervals within each of said groups, said individual blank intervals having a plurality of different widths which are integral multiples of a second width, W.sub.2, and wherein in at least one group there is a blank interval which has a width which is three times said second width, said groups thus being such that each group has a width substantially equal to (4W.sub.1 +8W.sub.2) and wherein said groups include an end mark in the form of a single width blank interval followed by a mark at the end of said groups of sequences.
- 5. The substrate of claim 4 in which said substantially uniformly wide marks are spaced to represent up to 35 different symbols.
- 6. The substrate of claim 4 in which said substantially uniformly wide marks are spaced to represent a plurality of distinct symbols in such a way that the largest distance between adjacent bars for different symbols is 5W.sub.1.
Parent Case Info
This is a continuation of copending application(s) Ser. No. 07/568,302 filed on Aug. 15, 1990, now abandoned.
US Referenced Citations (4)
Non-Patent Literature Citations (1)
Entry |
Le Nouvel Automatisme, vol. 30, No. 52, Mar. 1985, Paris, pp. 45-51, D. Mansion `Les Codes Barres`. |
Continuations (1)
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Number |
Date |
Country |
Parent |
568302 |
Aug 1990 |
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