Patent US3902188A successfully refreshed from Google Patents.
Patent US3882464A successfully refreshed from Google Patents.
US3882464A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Size ratio label reading system
Assignee: Computer Identics Corp
•
Filing: 1974-04-04
•
Granted: 1975-05-06
•
Expires: 1994-04-04
Abstract
Abstract A label reading system for reading a label including a cell of information including segments having contrasting characteristics, at least one of the segments occurring in more than one width comprising: sensing means for reading a label and producing signals representative of the contrasting segments; means, responsive to the signals, for measuring the interval of each of the segments; means, responsive to the means for measuring, for combining the measurements of each of the segments to produce a first ratio of a function of the width of a first segment to a function of the width of a second segment and a second ratio of a function of the width of the second segment to a function of the width of the first, and for determining whether either of those ratios equals respective first and second reference ratios within a predetermined range; and means, responsive to the means for combining and determining, for indicating that one of the first or second reference ratios has been met.
Inventors
- 👤 Stanley F Zamkow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:12
CPC Classifications
G; G06; G06K; G06K7/00; G06K7/10; G06K7/10544; G06K7/10821; G06K7/10861
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
236 words
A reading system for reading encoded information and determining whether the ratio of the widths of a pair of segments is within acceptable limits, said encoded information presented in pairs of adjacent segments including a first segment having a first characteristic and a second segment having a second contrasting characteristic, said segments occurring in more than one width, comprising: sensing means for reading said encoded information and producing a first segment signal representative of said first segment and a second segment signal representative of said second segment; measuring means, responsive to said first and second segment signals, for providing first and second size signals representative of the widths of said first and second segments, respectively; a first function generator, responsive to said first size signal, for producing a first function signal and a second function generator, responsive to said second size signal for producing a second function signal; and first determining means responsive to the difference between said first function signal and said second size signal for producing a first recognition signal representative of whether the ratio of the widths of said first and second segments is within a first predetermined range and second determining means, responsive to the difference between said second function signal and said first size signal for producing a second recognition signal representative of whether the ratio of the widths of said first and second segments is within a second predetermined range.
Claim 2
Dependent Claim
236 words
A reading system for reading encoded information and determining whether the ratio of the widths of a pair of segments is within acceptable limits, said encoded information presented in pairs of adjacent segments including a first segment having a first characteristic and a second segment having a second contrasting characteristic, said segments occurring in more than one width, comprising: sensing means for reading said encoded information and producing a first segment signal representative of said first segment and a second segment signal representative of said second segment; measuring means, responsive to said first and second segment signals, for providing first and second size signals representative of the widths of said first and second segments, respectively; a first function generator, responsive to said first size signal, for producing a first function signal and a second function generator, responsive to said second size signal for producing a second function signal; and first determining means responsive to the difference between said first function signal and said second size signal for producing a first recognition signal representative of whether the ratio of the widths of said first and second segments is within a first predetermined range and second determining means, responsive to the difference between said second function signal and said first size signal for producing a second recognition signal representative of whether the ratio of the widths of said first and second segments is within a second predetermined range.
Claim 3
Dependent Claim
146 words
The system of claim 1 in which said first determining means includes: first subtractor means, responsive to said first function signal and said second size signal for producing a first difference signal representative of the difference thereof; and first comparator means, responsive to said first difference signal and a first reference signal for providing said first recognition signal representing whether the ratio of widths of said first and second segments is within a first predetermined range; and said second determining means includes second subtractor means responsive to said second function signal and said first size signal for providing a second difference signal representative of the difference thereof; and second comparator means, responsive to said second difference signal and a second reference signal for providing said second recognition signal representing whether the ratio of widths of said first and second segments is within a second predetermined range.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-05-05 | 1978-11-04 | 1979-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-05-05 | 1982-11-04 | 1983-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-05-05 | 1986-11-04 | 1987-05-06 | $7700.00 | Window Closed / Lapsed |