Patent US4699149A successfully refreshed from Google Patents.
US4699149A
Expired / Lapsed
US
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Apparatus for the identification of individuals
Assignee: BTG International Ltd
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Filing: 1985-03-19
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Granted: 1987-10-13
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Expires: 2005-03-19
Abstract
Abstract The arrangement of veins is a unique characteristic of an individual. Identification is performed by means of a detector (9) which scans a region of the skin (6) and detects the position of subcutaneous blood vessels (8) by measurement of a parameter such as the reflection of incident radiation. Comparison of the measured pattern with a predetermined pattern provides identification of the individual.
Inventors
- 👤 Joseph Rice
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:05
CPC Classifications
G; G07; G07C; G07C9/00; G07C9/30; G07C9/32; G07C9/37; G06; G06V; G06V10/00; G06V10/10; G06V10/12; G06V10/14; G06V10/143; G06V40/00; G06V40/10; G06V40/14
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
113 words
An apparatus for identifying an individual comprising: radiation source means adapted to illuminate a region of the skin of an individual which is substantially opaque to visible radiation but substantially transparent to radiation from said source, means for detecting radiation from said source means reflected from the individual and sensitive to lateral variations and intensities of said reflected radiation so as to detect the arrangement of subcutaneous blood vessels in said region of the skin, wherein said means for detecting includes transducer means for generating a signal indicative of the variation of the arrangement of subcutaneous blood vessels; and comparator means for comparing said signal with a reference signal characteristic of the individual.
Claim 2
Independent Claim
113 words
An apparatus for identifying an individual comprising: radiation source means adapted to illuminate a region of the skin of an individual which is substantially opaque to visible radiation but substantially transparent to radiation from said source, means for detecting radiation from said source means reflected from the individual and sensitive to lateral variations and intensities of said reflected radiation so as to detect the arrangement of subcutaneous blood vessels in said region of the skin, wherein said means for detecting includes transducer means for generating a signal indicative of the variation of the arrangement of subcutaneous blood vessels; and comparator means for comparing said signal with a reference signal characteristic of the individual.
Claim 3
Dependent Claim
40 words
An apparatus for identifying an individual as claimed in claim 1, wherein the means for detecting the arrangement of subcutaneous blood vessels comprises means adapted to move laterally whereby an area of the skin of said individual can be scanned.
Claim 4
Dependent Claim
30 words
An apparatus for identifying an individual as claimed in claim 2, wherein said transducer means comprises a plurality of radiation detectors arranged substantially normal to said lateral direction of movement.
Claim 5
Dependent Claim
34 words
An apparatus for identifying an individual as claimed in claim 1, wherein said source of radiation includes integrator means to flood the region of surface of the skin adjacent the transducer means with radiation.
Claim 6
Dependent Claim
22 words
An apparatus for identifying an individual as claimed in claim 1, wherein said source of radiation is a source of infra-red radiation.
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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) | 1990-10-12 | 1991-04-13 | 1991-10-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-10-12 | 1995-04-13 | 1995-10-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-10-12 | 1999-04-13 | 1999-10-13 | $7700.00 | Window Closed / Lapsed |