Patent US4346902A successfully refreshed from Google Patents.
Patent EP0342772A2 successfully refreshed from Google Patents.
EP0342772A2
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EP
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Multi-printing bar code system
Assignee: Pioneer Corp
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Filing: 1989-01-04
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Granted: —
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Expires: 2009-01-04
Abstract
Abstract A bar code is multi-printed with plural inks having different absorptance characteristics, and the bar code is then scanned with two different wavelengths of reading light to obtain two different information signals.
Inventors
- 👤 Kuniaki Pioneer Electronic Corporation Shiratori
- 👤 Shin-Ichi Pioneer Electronic Corporation Nojiri
- 👤 Masaya Pioneer Electronic Corporation Ishibashi
- 👤 Takao Pioneer Electronic Corporation Yamada
- 👤 Keiji Pioneer Electronic Corporation Katata
- 👤 Masami Pioneer Electronic Corporation Oishi
- 👤 Kirotoshi Pioneer Electronic Corporation Okubo
- 👤 Akihiko Pioneer Electronic Corporation Tagawa
- 👤 Takeo Pioneer Electronic Corporation Tobe
- 👤 Hirohisa Pioneer Electronic Corporation Tsudome
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-07 08:22
CPC Classifications
G; G06; G06K; G06K19/00; G06K19/06; G06K19/06009; G06K19/06018; G06K19/06028; G06K7/00; G06K7/10; G06K7/12; G06K2019/06215; G06K2019/06225
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
96 words
A bar code system, comprising: a first bar code printed on a first region of a substrate with a first ink absorptive in a first wavelength region; a second bar code printed on said substrate in said first region with a second ink absorption in a second wavelength region different from said first wavelength region; and a reading device having means for emitting light in different wavelength regions and means for detecting light reflected from said substrate in each of said different wavelength regions to thereby separately read each of said first and second bar codes.
Claim 2
Dependent Claim
96 words
A bar code system, comprising: a first bar code printed on a first region of a substrate with a first ink absorptive in a first wavelength region; a second bar code printed on said substrate in said first region with a second ink absorption in a second wavelength region different from said first wavelength region; and a reading device having means for emitting light in different wavelength regions and means for detecting light reflected from said substrate in each of said different wavelength regions to thereby separately read each of said first and second bar codes.
Claim 3
Dependent Claim
36 words
A bar code system as claimed in claim 1, wherein said reading device first detects reflected light in one of said different wavelength regions and subsequently detects reflected light in another of said different wavelength regions.
Claim 4
Dependent Claim
21 words
A bar code system as claimed in claim 1, wherein said different wavelength regions comprise said first and second wavelength regions.
Claim 5
Dependent Claim
35 words
A bar code system as claimed in claim 1, wherein said first wavelength region is within a visible wavelength region and said second wavelength region is an optical wavelength outside of the visible wavelength region.
Claim 6
Dependent Claim
18 words
A bar code system as claimed in claim 1, wherein said second wavelength region comprises the infrared region.
Claim 7
Dependent Claim
25 words
A bar code system as claimed in claim 1, wherein said second ink forming said second bar code overlays a portion of said first ink.
Claim 8
Dependent Claim
61 words
A bar code reader for reading a bar code printed on a substrate, said reader comprising: means for emitting light in at least first and second different wavelength regions; and means for detecting light reflected from said substrate in each of said different wavelength regions to thereby separately read each of said first and second bar codes printed on said substrate.
Claim 9
Dependent Claim
61 words
A bar code reader for reading a bar code printed on a substrate, said reader comprising: means for emitting light in at least first and second different wavelength regions; and means for detecting light reflected from said substrate in each of said different wavelength regions to thereby separately read each of said first and second bar codes printed on said substrate.
Claim 10
Independent Claim
69 words
A method of printing information on a substrate in the form of a bar code, said method comprising: printing a first bar code on a first region of said substrate with a first ink absorptive in a first wavelength region: and printing a second bar code on said substrate in said first region with a second ink absorption in a second wavelength region different from said first wavelength region.
Claim 11
Independent Claim
69 words
A method of printing information on a substrate in the form of a bar code, said method comprising: printing a first bar code on a first region of said substrate with a first ink absorptive in a first wavelength region: and printing a second bar code on said substrate in said first region with a second ink absorption in a second wavelength region different from said first wavelength region.
Claim 12
Dependent Claim
57 words
An information-carrying article, comprising: a substrate; a first bar code printed on a first region of a substrate with a first ink absorptive in a first wavelength region: and a second bar code printed on said substrate in said first region with a second ink absorption in a second wavelength region different from said first wavelength region.
Claim 13
Dependent Claim
57 words
An information-carrying article, comprising: a substrate; a first bar code printed on a first region of a substrate with a first ink absorptive in a first wavelength region: and a second bar code printed on said substrate in said first region with a second ink absorption in a second wavelength region different from said first wavelength region.
References Cited (Backward Citations)
No citation records indexed.
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