Patent EP0317229A2 successfully refreshed from Google Patents.
EP0317229A2
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EP
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Verification methods and systems
Assignee: Light Signatures Inc
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Filing: 1988-11-14
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Granted: —
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Expires: 2008-11-14
Abstract
Abstract Verification of a card C involves moving it through a slot S of a terminal T to derive test signals representative of pixels of a sensed card-area 12 that includes a likeness 24 (FIG 2) of the cardholder together with part 26 (FIG 2) of his alpha-numeric identifier 10. The test signals, after sampling, are quantized (94 FIG 4) against two controlled thresholds which identify each pixel of the area 12 as being darker than, lighter than, or about the same as the detected average optical density (80 FIG 4) of the sensed area 12. When digitized (96 FIG 4), the quantized signals are compared (86 FIG 4) with digital-data signals read (78 FIG 4) from a magnetic recording 14 that was made during earlier (FIG 5) sensing of the area 12. Lamps L indicate the existence of acceptable (40; 90 FIG 4), unacceptable (42; 88 FIG 4) or uncertain (44; 92 FIG 4) overall correlation between the compared signals. A two-dimensional liquid-crystal display D shows the correlation results graphically in binary pixel form (black/white), with pixel-to-pixel correspondence with the sensed area; operation of a button 53 expands the display D to show sub-pixels.
Inventors
- 👤 Robert Norman Goldman
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-07 20:20
CPC Classifications
G; G07; G07F; G07F7/00; G07F7/08; G07F7/086; G06; G06Q; G06Q20/00; G06Q20/30; G06Q20/34; G06Q20/347; G07C; G07C9/00; G07C9/20; G07C9/22; G07C9/25; G07C9/253; G07F7/12; G07F7/125
Claims Analysis
Total Claims: 27
Claim 1
Independent Claim
116 words
A method of verification in which identification indicia (12) borne by a document or other item (C) are sensed to derive test signals dependent on the sensed indicia (12), and comparison is made for correlating the test signals with stored data (14) relating to the indicia (12) and providing an output (L) dependent on the correlation between them, characterised in that the test signals are representative of pixels of a sensed area that includes at least part of the said indicia (12), that the comparison is made between these signals and pixel-representative signals derived from the stored data (14), and that pixels (46) dependent on the comparison results are displayed to manifest the correlation graphically (D).
Claim 2
Independent Claim
116 words
A method of verification in which identification indicia (12) borne by a document or other item (C) are sensed to derive test signals dependent on the sensed indicia (12), and comparison is made for correlating the test signals with stored data (14) relating to the indicia (12) and providing an output (L) dependent on the correlation between them, characterised in that the test signals are representative of pixels of a sensed area that includes at least part of the said indicia (12), that the comparison is made between these signals and pixel-representative signals derived from the stored data (14), and that pixels (46) dependent on the comparison results are displayed to manifest the correlation graphically (D).
Claim 3
Dependent Claim
28 words
A method according to Claim 1 characterised in that the pixel-representative signals derived from the stored data are derived from data (14) stored on the said item (C).
Claim 4
Dependent Claim
23 words
A method according to Claim 2 characterised in that the data is stored in a magnetic record (14) on the said item (C).
Claim 5
Independent Claim
25 words
A method according to any one of Claims 1 to 3 characterised in that the display (D) corresponds pixel-to-pixel (46) with the sensed area (12).
Claim 6
Independent Claim
23 words
A method according to any one of Claims 1 to 4 characterised in that the display (D) is of binary pixel form (46).
Claim 7
Independent Claim
29 words
A method according to any one of Claims 1 to 5 characterised in that the test signals are signals quantized to discrete thresholds of pixel-value within said area (12).
Claim 8
Dependent Claim
27 words
A method according to Claim 6 characterised in that the signal-quantization is related to two sensing-thresholds so as to establish three possible values for each test signal.
Claim 9
Dependent Claim
33 words
A method according to Claim 6 or Claim 7 characterised in that at least one of the sensing-thresholds is set in accordance with an average of sensed pixel-values within the said area (12).
Claim 10
Independent Claim
82 words
A method according to any one of Claims 1 to 8 characterised in that verification is indicated as accepted (40; 90 FIG 4), uncertain (44; 92 FIG 4), or rejected (42; 88 FIG 4) according to whether the test signals overall meet one or the other of predetermined criteria defining acceptable, intermediate and unacceptable correlation with the stored data (14), and that the correlation is manifested graphically (D) as aforesaid at least in the event that verification is indicated as uncertain (44).
Claim 11
Independent Claim
31 words
A method according to any one of Claims 1 to 9 characterised in that said area comprises at least part of a photographic image (12) represented on the said item (C).
Claim 12
Dependent Claim
22 words
A method according to Claim 10 characterised in that the photographic image (12) comprises a likeness (24, FIG 2) of an individual.
Claim 13
Dependent Claim
30 words
A method according to Claim 10 or Claim 11 characterised in that at least part of alpha-numeric information (10) borne by the said item (C) lies within said area (12).
Claim 14
Dependent Claim
30 words
A method according to Claim 12 characterised in that the alpha-numeric information, or part thereof (54 FIG 3), lying within said area, is superimposed therein with the said image (12).
Claim 15
Dependent Claim
132 words
A verification system in which means for sensing (82 FIG 4) identification indicia (12) borne by a document or other item (C) presented to the system, derives test signals dependent on the sensed indicia (12), and comparison (86 FIG 4) is made for correlating the test signals with stored data (14) relating to the indicia (12) and providing an output (L) dependent on the correlation between them, characterised in that the sensing means (82) derives the test signals as representative of pixels of a sensed area that includes at least part of the said indicia (12), that the comparison (86) is made between these signals and pixel-representative signals derived from the stored data (14), and that the system includes display means (D) for providing a graphic display dependent on the comparison results.
Claim 16
Dependent Claim
132 words
A verification system in which means for sensing (82 FIG 4) identification indicia (12) borne by a document or other item (C) presented to the system, derives test signals dependent on the sensed indicia (12), and comparison (86 FIG 4) is made for correlating the test signals with stored data (14) relating to the indicia (12) and providing an output (L) dependent on the correlation between them, characterised in that the sensing means (82) derives the test signals as representative of pixels of a sensed area that includes at least part of the said indicia (12), that the comparison (86) is made between these signals and pixel-representative signals derived from the stored data (14), and that the system includes display means (D) for providing a graphic display dependent on the comparison results.
Claim 17
Dependent Claim
34 words
A system according to Claim 14 characterised in that it includes a reader device (78 FIG 4) for reading the stored data (14) from the document or other item (C) presented to the system.
Claim 18
Dependent Claim
16 words
A system according to Claim 15 characterised in that reader device is a magnetic-stripe reader (78).
Claim 19
Independent Claim
30 words
A system according to any one of Claims 14 to 16 characterised in that the display (D) corresponds pixel-to-pixel (46) with the area (12) sensed by said sensing means (82).
Claim 20
Independent Claim
23 words
A system according to any one of Claims 14 to 17 characterised in that the display (D) is of binary pixel form (46).
Claim 21
Independent Claim
22 words
A system according to any one of Claims 14 to 18 characterised in that the display means comprises a liquid-crystal device (D).
Claim 22
Independent Claim
31 words
A system according to any one of Claims 14 to 19 characterised in that the test signals are derived as signals quantized to discrete thresholds of pixel-value within said area (12).
Claim 23
Dependent Claim
27 words
A system according to Claim 20 characterised in that the signal-quantization is related to two sensing-thresholds so as to establish three possible values for each test signals.
Claim 24
Dependent Claim
46 words
A system according to Claim 20 or Claim 21 characterised in that means (80 FIG 4) is provided for deriving an average of sensed pixel-values within the said area (12), and that at least one of the sensing-thresholds is set in accordance with the derived average.
Claim 25
Independent Claim
83 words
A system according to any one of Claims 14 to 22 characterised in that it includes indicator means (L) for indicating that verification is accepted (40; 90 FIG 4), uncertain (44; 92), or rejected (42; 88) according to whether the test signals overall meet one or the other of predetermined criteria defining acceptable, intermediate and unacceptable correlation with the stored data, and that the correlation is manifested graphically (D) as aforesaid, at least in the event that verification is indicated as uncertain (44).
Claim 26
Independent Claim
30 words
A system according to any one of Claims 14 to 23 characterised in that the display means (D) includes provision (53) for selectively increasing the number of pixels (46) displayed.
Claim 27
Independent Claim
88 words
A method of producing a document or other item (C) for use in a method or with a system according to any one of Claims 1 to 24 in which indicia (12) borne by the said item (C) is sensed and signals in accordance with the sensed indicia (12) are recorded on the said item (C) in machine-readable form (14), characterised in that the signals are representative of pixels of a sensed area (12) of said item (C) that includes at least part of the said indicia (12).
References Cited (Backward Citations)
No citation records indexed.
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