Patent US3818191A successfully refreshed from Google Patents.
US3818191A
Expired / Lapsed
US
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Automatic non-contact recognition of coded insignia
Assignee: SRI International Inc
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Filing: 1972-03-03
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Granted: 1974-06-18
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Expires: 1992-03-03
Abstract
Abstract A system is provided for optically scanning a remotely located encoded label on a package, error detecting, verifying and decoding the same, regardless of the orientation of said package.
Inventors
- 👤 C Fennema
- 👤 J Yarborough
- 👤 A Brain
- 👤 C Rosen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:41
CPC Classifications
G; G06; G06K; G06K7/00; G06K7/10; G06K7/10544; G06K7/10821; G06K7/10861; G06K7/10871; B; B65; B65G; B65G47/00; B65G47/34; B65G47/46; B65G47/48; B65G47/49; B65G47/493; G07; G07G; G07G1/00; G07G1/10
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
261 words
A system for reading coded indicia applied to a parcel regardless of the angle made by said indicia with detecting apparatus which is remotely located from said parcel comprising a detecting station including means for emitting a high intensity substantially non-diverging light beam; means for repetitively sweeping said light beam through a plane; means for moving said parcel through said plane with its coded indicia positioned to be intersected by said light beam; photo cell means positioned to receive light emitted by said indicia caused by the illumination thereof by said light beam emitting means; counting means responsive to the output of said photocell means for determining that a proper number of bits of data have been generated by said photocell means in response to the light received from said coded indicia; storage means connected to receive the output from said photocell means for storing half of the bits of data generated by said photocell means with responsive to the light received from the coded indicia; means for comparing the bits of data which are stored with the remaining bits of data generated by said photocell means in response to the light received from the remaining half of said coded indicia and producing an error signal when an unidenticality is detected; means rendered inoperative in the presence of an error signal for decoding a portion of the bits stored in said storage means; and means responsive to said decoding means for utilizing the remaining bits of data in said storage means in accordance with the information decoded by sid decoding means.
Claim 2
Independent Claim
261 words
A system for reading coded indicia applied to a parcel regardless of the angle made by said indicia with detecting apparatus which is remotely located from said parcel comprising a detecting station including means for emitting a high intensity substantially non-diverging light beam; means for repetitively sweeping said light beam through a plane; means for moving said parcel through said plane with its coded indicia positioned to be intersected by said light beam; photo cell means positioned to receive light emitted by said indicia caused by the illumination thereof by said light beam emitting means; counting means responsive to the output of said photocell means for determining that a proper number of bits of data have been generated by said photocell means in response to the light received from said coded indicia; storage means connected to receive the output from said photocell means for storing half of the bits of data generated by said photocell means with responsive to the light received from the coded indicia; means for comparing the bits of data which are stored with the remaining bits of data generated by said photocell means in response to the light received from the remaining half of said coded indicia and producing an error signal when an unidenticality is detected; means rendered inoperative in the presence of an error signal for decoding a portion of the bits stored in said storage means; and means responsive to said decoding means for utilizing the remaining bits of data in said storage means in accordance with the information decoded by sid decoding means.
Claim 3
Dependent Claim
163 words
Apparatus as recited in claim 1 wherein said detecting means includes a plurality of gate detection means each one of which is enabled in response to diFferent predetermined data bit combinations in said portion of said data bits stored in said storage means; a plurality of storage means; a different data gate means for each one of said plurality of storage means, each one of said data gate means coupling said storage means which stores the remaining data bits with a different one of said plurality of storage means; and means for applying the outputs of each one of the detection gate means to a different one of the inputs of said plurality of storage gate means for enabling the one of said storage gate means to transfer the remaining bits in said storage means to one of said plurality of said storage means when the associated detecting gate means has all of the predetermined combination of data bits present at its input.
Claim 4
Dependent Claim
79 words
A system as recited in claim 1 wherein there is included a plurality of separate storage means; means responsive to a portion of the bits of data stored in said storage means for transferring the remaining bits of data into a predetermined one of said plurality of storage means in accordance with the information contained in said portion of said bits of data; and means responsive to an error signal for holding said means for transferring data bits inoperative.
Claim 5
Dependent Claim
47 words
In a system as recited in claim 1 wherein there is included means responsive to a portion of the code bits stored in said storage means for indicating utilization to be given to the remainder of the code bits which are stored in said means for storing.
Claim 6
Dependent Claim
38 words
Apparatus as recited in claim 1 wherein said high intensity narrow light beam emitting means is an ultraviolet laser, and said coded indicia is made with material which fluoresces in color in response to said ultraviolet laser light.
Claim 7
Dependent Claim
75 words
Apparatus as recited in claim 1 wherein said coded indicia has the form of concentric color markings spaced by no color regions; and said storage means connected to receive the output from said photocell means includes means responsive to a no color region being detected by said photocell means for storing a binary bit which is the same as the binary bit which was stored just prior to the occurrence of said no color region.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-06-17 | 1977-12-17 | 1978-06-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-17 | 1981-12-17 | 1982-06-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-17 | 1985-12-17 | 1986-06-18 | $7700.00 | Window Closed / Lapsed |