Patent US5218644A successfully refreshed from Google Patents.
US5218644A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for recognizing latent information
Assignee: Individual
•
Filing: 1991-03-21
•
Granted: 1993-06-08
•
Expires: 2011-03-21
Abstract
Abstract A device for recognizing latent information including an asymmetrical reading head in the form of a truncated cone which is inclined (oblique). The image of the latent information furnished by the reading head is deformed or "warped" with respect to the image which would be furnished by a perfectly symmetrical reading head (a right truncated cone). Hence, different categories of users of an installation can be provided with device having different reading heads furnishing each user with a proper image for the information he is permitted to access so as to prevent access to non-permitted information, each category of users having access to a part of the information corresponding to the specific image furnished by the proper reading head of his device.
Inventors
- 👤 Eric Bauer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:30
CPC Classifications
G; G06; G06V; G06V40/00; G06V40/10; G06V40/12; G06V40/13; G06V40/1324; A; A61; A61B; A61B5/00; A61B5/117; A61B5/1171; A61B5/1172; G07; G07C; G07C9/00; G07C9/20; G07C9/22; G07C9/25; G07C9/257
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
68 words
A device for recognizing information from a person's finger comprising, means to produce a plurality of non-identical distorted images of the information, said images being produced by diffraction, said means to produce the image including a plurality of reading heads, each of said heads including detection plates provided with emitting and receiving members, the position of said emitting and receiving members being different for each of said heads.
Claim 2
Independent Claim
68 words
A device for recognizing information from a person's finger comprising, means to produce a plurality of non-identical distorted images of the information, said images being produced by diffraction, said means to produce the image including a plurality of reading heads, each of said heads including detection plates provided with emitting and receiving members, the position of said emitting and receiving members being different for each of said heads.
Claim 3
Dependent Claim
18 words
A device as claimed in claim 1, in which said non-identical images are in the form of ultrasounds.
Claim 4
Dependent Claim
19 words
A device as claimed in claim 2 in which the geometry of each of the reading heads is different.
Claim 5
Dependent Claim
39 words
A device as claimed in claim 2 in which said means to produce the images comprise a plurality of reading heads which heads include a diffraction plate, the position of the diffraction plate of each said heads being different.
Claim 6
Dependent Claim
36 words
A device as claimed in claim 2 in which said means to produce the images comprise reading heads having a body, the material from which the body of each of the heads is made being different.
Claim 7
Dependent Claim
43 words
A device as claimed in claim 1 in which said means to produce the images are reading heads for producing ultrasounds, at least portions of each of said reading heads being formed so as to produce a differently altered image of said information.
Claim 8
Dependent Claim
19 words
A device as claimed in claim 6 in which the geometry of each of the reading heads is different.
Claim 9
Dependent Claim
40 words
A device as claimed in claim 6 in which said means to produce the images comprise a plurality of reading heads which heads include a diffraction plate, the position of the diffraction plate of each of said heads being different.
Claim 10
Dependent Claim
36 words
A device as claimed in claim 6 in which said means to produce the images comprise reading heads having a body, the material from which the body of each of the heads is made being different.
Claim 11
Dependent Claim
44 words
A device as claimed in claim 6 in which said means to produce the images comprise reading heads which include detection plates provided with emitting and receiving members, the position of said emitting and receiving members being different for each of said reading heads.
Claim 12
Dependent Claim
32 words
A device as claimed in claim 6 in which said means to produce the images comprise reading heads which produce signals, and electronic means for transforming said signals into information for display.
Claim 13
Dependent Claim
19 words
A device as claimed in claim 1 in which the geometry of each of the reading heads is different.
Claim 14
Dependent Claim
30 words
A device as claimed in claim 1 in which the position of the diffraction plate of each of said heads differs with respect to the longitudinal axis of said heads.
Claim 15
Dependent Claim
31 words
A device as claimed in claim 1 in which each of said reading heads comprises a body of different materials from which the body of each of the heads is made.
Claim 16
Dependent Claim
16 words
A device as claimed in claim 14 in which said body is made of composite materials.
Claim 17
Dependent Claim
26 words
A device as claimed in claim 1 in which each of said reading heads produces signals, and electronic means for transforming said signals into displayable information.
Claim 18
Independent Claim
85 words
A device for recognizing information from a person's finger comprising, means to produce a plurality of non-identical distorted images of the information, said images being produced by diffraction, said means to produce the images including reading heads for producing ultrasounds, at least portions of said heads being formed so as to produce an altered image of said information, said reading heads including detection plates provided with emitting and receiving members, the position of said emitting and receiving members being different for each of said heads.
Claim 19
Independent Claim
85 words
A device for recognizing information from a person's finger comprising, means to produce a plurality of non-identical distorted images of the information, said images being produced by diffraction, said means to produce the images including reading heads for producing ultrasounds, at least portions of said heads being formed so as to produce an altered image of said information, said reading heads including detection plates provided with emitting and receiving members, the position of said emitting and receiving members being different for each of said heads.
References Cited (Backward Citations)
US3947128A
Cited
US4120585A
Cited
US4414684A
Cited
US4777958A
Cited
US4977601A
Cited
US4972476A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1996-06-07 | 1996-12-07 | 1997-06-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-06-07 | 2000-12-07 | 2001-06-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-06-07 | 2004-12-07 | 2005-06-08 | $7700.00 | Window Closed / Lapsed |