Patent US4736203A successfully refreshed from Google Patents.
US4736203A
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US
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3D hand profile identification apparatus
Assignee: Sanofi Aventis France
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Filing: 1985-07-17
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Granted: 1988-04-05
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Expires: 2005-07-17
Abstract
Abstract An identification system is disclosed which determines whether the claimed identity of an individual is in fact the true identity. A three dimensional image of a hand is obtained using a digitizing camera and a pair of orthogonal reflecting surfaces. The image is then compared with a previously recorded hand image for the claimed identity. If the images match, within a selectable tolerance, the person is accepted as the correct individual. If they do not match, the person is rejected. Signalling and/or control apparatus responds to the results of the comparison.
Inventors
- 👤 David P. Sidlauskas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:02
CPC Classifications
G; G06; G06V; G06V40/00; G06V40/10; G06V40/107; G06V40/11; G07; G07C; G07C9/00; G07C9/30; G07C9/32; G07C9/37
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
137 words
An identification apparatus comprising: means responsive to retro-reflected radiation; a pair of orthogonally orientated retro-reflective surfaces in front of which a person's hand may be placed for retro-reflecting incident radiation from a source of radiation which is not interrupted by said hand for projecting a single image comprising a plan and profile view of said person's hand to said retro-reflected radiation responsive means; means in said retro-reflected radiation responsive means which is responsive to said image for providing signals corresponding to said plan and profile views; means responsive to said signals for providing current measurement data from said plan and profile views; means for comparing said current measurement data with data previously stored in a memory; and means for providing a signal when said current measurement data and said previously stored data match within a predetermined tolerance.
Claim 2
Dependent Claim
137 words
An identification apparatus comprising: means responsive to retro-reflected radiation; a pair of orthogonally orientated retro-reflective surfaces in front of which a person's hand may be placed for retro-reflecting incident radiation from a source of radiation which is not interrupted by said hand for projecting a single image comprising a plan and profile view of said person's hand to said retro-reflected radiation responsive means; means in said retro-reflected radiation responsive means which is responsive to said image for providing signals corresponding to said plan and profile views; means responsive to said signals for providing current measurement data from said plan and profile views; means for comparing said current measurement data with data previously stored in a memory; and means for providing a signal when said current measurement data and said previously stored data match within a predetermined tolerance.
Claim 3
Dependent Claim
14 words
An apparatus according to claim 1 wherein said incident and retro-reflected radiation are coaxial.
Claim 4
Dependent Claim
18 words
An apparatus according to claim 1 wherein at least one of said retro-reflective surfaces comprises a reference mark.
Claim 5
Dependent Claim
19 words
An apparatus according to claim 3 wherein said reference mark comprises a predetermined non-reflective area on said latter surface.
Claim 6
Dependent Claim
66 words
An identification apparatus comprising: a source of radiation; first and second orthogonally orientated retro-reflective surfaces for reflecting said radiation; means for propagating said radiation from said source along a first and a second axis perpendicular to said first and said second surfaces, respectively; and means responsive to the radiation reflected from each of said surfaces for providing signals corresponding to the intensity of said reflected radiation.
Claim 7
Dependent Claim
66 words
An identification apparatus comprising: a source of radiation; first and second orthogonally orientated retro-reflective surfaces for reflecting said radiation; means for propagating said radiation from said source along a first and a second axis perpendicular to said first and said second surfaces, respectively; and means responsive to the radiation reflected from each of said surfaces for providing signals corresponding to the intensity of said reflected radiation.
Claim 8
Dependent Claim
22 words
An apparatus according to claim 5 wherein the radiation incident on each of said surfaces and the radiation reflected therefrom are coaxial.
Claim 9
Dependent Claim
39 words
An apparatus according to claim 5 comprising: means for comparing said signals with data previously stored in a memory; and means for providing a signal when there is a predetermined correspondence between said signals and said previosly stored data.
Claim 10
Dependent Claim
49 words
An apparatus according to claim 5 wherein said propagating means comprises: a beam splitter for propagating said radiation from said source along said first axes to said first surface; and a plane mirror for propagating said radiation from said beam splitter to said second surface along said second axis.
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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) | 1991-04-05 | 1991-10-05 | 1992-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-04-05 | 1995-10-05 | 1996-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-04-05 | 1999-10-05 | 2000-04-05 | $7700.00 | Window Closed / Lapsed |