Patent US3890790A successfully refreshed from Google Patents.
US3758752A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic vehicle identification
Assignee: Computer Identics Corp
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Filing: 1970-08-26
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Granted: 1973-09-11
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Expires: 1990-08-26
Abstract
Abstract Apparatus is disclosed for determining the actual size of a section of information associated with an adjacent space by comparing an apparent dimension of the section with a like apparent dimension of the space to produce a representation of the relative size of the section and space and then determining the actual size of the section using that representation of relative size.
Inventors
- 👤 C Kapsambelis
- 👤 C Ugalde
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:45
CPC Classifications
B; B61; B61L; B61L25/00; B61L25/02; B61L25/04; B61L25/041
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
245 words
In an optical reading system for reading coded information including code elements, each code element, having a first part having a first optical characteristic and a second part having a second optical characteristic distinguishable from said first characteristic, in which the distance between the reading system and coded elements may vary, a discrimination system for determining the size of said parts independently of the distance of the code elements from the reading system comprising: means for scanning said code elements; means, responsive to said means for scanning, for producing a first signal in response to the scanning of a said first part and a second signal in response to the scanning of a said second part; integrating means for integrating in a first direction and in the opposite direction and having means for accumulating the remaining sum of the integration; gating means responsive to said first signal to operate said integrating meanS in said first direction and responsive to said second signal to operate said integrating means in said opposite direction; means, responsive to said integrating means for producing a first output in response to said remaining sum being in a first range and a second output in response to said remaining sum being in a second range; and means, responsive to said first output for determining that said first part is smaller than said second part and responsive to said second output for determining that said first part is larger than said second part.
Claim 2
Dependent Claim
245 words
In an optical reading system for reading coded information including code elements, each code element, having a first part having a first optical characteristic and a second part having a second optical characteristic distinguishable from said first characteristic, in which the distance between the reading system and coded elements may vary, a discrimination system for determining the size of said parts independently of the distance of the code elements from the reading system comprising: means for scanning said code elements; means, responsive to said means for scanning, for producing a first signal in response to the scanning of a said first part and a second signal in response to the scanning of a said second part; integrating means for integrating in a first direction and in the opposite direction and having means for accumulating the remaining sum of the integration; gating means responsive to said first signal to operate said integrating meanS in said first direction and responsive to said second signal to operate said integrating means in said opposite direction; means, responsive to said integrating means for producing a first output in response to said remaining sum being in a first range and a second output in response to said remaining sum being in a second range; and means, responsive to said first output for determining that said first part is smaller than said second part and responsive to said second output for determining that said first part is larger than said second part.
Claim 3
Dependent Claim
20 words
The discriminator system of claim 1 in which said integrating means is a digital integrator and includes a bidirectional counter.
Claim 4
Dependent Claim
73 words
The discriminator system of claim 1 in which one of said first and second range includes a range of positive values and the other a range of negative values and said means for producing a first output in response to said remaining sum being in a first range and a second output in response to said remaining sum includes means for detecting whether said remaining sum is a positive or a negative value.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-09-10 | 1977-03-12 | 1977-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-10 | 1981-03-12 | 1981-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-10 | 1985-03-12 | 1985-09-11 | $7700.00 | Window Closed / Lapsed |