US4194217A
Expired / Lapsed
US
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Method and apparatus for in-vivo spectroscopic analysis
Assignee: Scientific Innovations Inc
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Filing: 1978-03-31
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Granted: 1980-03-18
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Expires: 1998-03-31
Abstract
Abstract Method and apparatus for the spectroscopic analysis of a specimen in which the specimen is irradiated with a narrow band of monochromatic light over a range of wavelengths, the light reflected from the specimen is scanned to generate a signal representative thereof, the signal is converted into a digital signal and stored. Digital data representative of selected spectroscopic characteristics is also stored and the digital data and the spectroscopic data are read out to identify the spectroscopic characteristics of the specimen. A TV camera scanner enables selective gating by varying the respective horizontal and vertical portions of the video signal. The video signal may be visually monitored to alter the scanning of the specimen and to determine those portions of the signal to be gated.
Inventors
- 👤 Francois J. G. van den Bosch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:03
CPC Classifications
G; G01; G01J; G01J3/00; G01J3/28
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
99 words
Apparatus for the spectroscopic analysis of a specimen, comprising: first means for scanning the specimen with a narrow band of a monochromatic light over a range of wavelengths; second means for scanning the light reflected from said specimen and generating a signal representative thereof; means for selectively gating a portion of said signal; means for converting the gated signal into a digital signal; means for storing said digital signal; means for storing digital data representative of selected spectroscopic characteristics; and means for reading out said digital data and said spectroscopic data to identify the spectroscopic characteristics of said specimen.
Claim 2
Dependent Claim
99 words
Apparatus for the spectroscopic analysis of a specimen, comprising: first means for scanning the specimen with a narrow band of a monochromatic light over a range of wavelengths; second means for scanning the light reflected from said specimen and generating a signal representative thereof; means for selectively gating a portion of said signal; means for converting the gated signal into a digital signal; means for storing said digital signal; means for storing digital data representative of selected spectroscopic characteristics; and means for reading out said digital data and said spectroscopic data to identify the spectroscopic characteristics of said specimen.
Claim 3
Dependent Claim
37 words
Apparatus as in claim 1 wherein said means for converting includes a binary coded decimal converter responsive to said digital signal and means for multiplexing the decimally coded data into said digital signal having a serial format.
Claim 4
Dependent Claim
21 words
Apparatus as in claim 1 further comprising means for visually monitoring the scanned signal and the selective gating of said signal.
Claim 5
Dependent Claim
24 words
Apparatus as in claim 1 wherein said digital data includes words having eight bits wherein each bit represents one angstrom of said monochromatic light.
Claim 6
Dependent Claim
18 words
Apparatus as in claim 4 wherein said range of wavelengths extends from the ultra-violet to the near infra-red.
Claim 7
Dependent Claim
17 words
Apparatus as in claim 1 wherein said means for reading out is a cathode ray tube display.
Claim 8
Dependent Claim
14 words
Apparatus as in claim 1 wherein said means for reading out is a printer.
Claim 9
Dependent Claim
14 words
Apparatus as in claim 1 wherein said means for reading out is a recorder.
Claim 10
Dependent Claim
39 words
Apparatus as in claim 1 wherein said second means for scanning is a TV camera and said means for selectively gating includes means for varying the horizontal and vertical components of the video signal generated by said TV camera.
Claim 11
Dependent Claim
25 words
Apparatus as in claim 1 wherein said specimen is the sclera of the eye and the spectroscopic analysis identifies the spectroscopic characteristics of the blood.
Claim 12
Dependent Claim
53 words
Apparatus for the spectroscopic analysis of a specimen, comprising: means for scanning the specimen with a narrow band of monochromatic light over a range of wavelengths; means for detecting the light reflected from said specimen and generating a signal representative thereof; means for amplifying said signal; and means for recording the amplified signal.
Claim 13
Dependent Claim
53 words
Apparatus for the spectroscopic analysis of a specimen, comprising: means for scanning the specimen with a narrow band of monochromatic light over a range of wavelengths; means for detecting the light reflected from said specimen and generating a signal representative thereof; means for amplifying said signal; and means for recording the amplified signal.
Claim 14
Dependent Claim
82 words
Method for spectroscopic analysis of a specimen, comprising the steps of: scanning the specimen with a narrow band of monochromatic light over a range of wavelengths; scanning light reflected from said specimen and generating a signal representative thereof; selectively gating a portion of said signal; converting said signal into a digital signal; storing said digital signal; storing digital data representative of selected spectroscopic characteristics; and reading out the digital data and said spectroscopic data to identify the spectroscopic characteristics of said specimen.
Claim 15
Dependent Claim
82 words
Method for spectroscopic analysis of a specimen, comprising the steps of: scanning the specimen with a narrow band of monochromatic light over a range of wavelengths; scanning light reflected from said specimen and generating a signal representative thereof; selectively gating a portion of said signal; converting said signal into a digital signal; storing said digital signal; storing digital data representative of selected spectroscopic characteristics; and reading out the digital data and said spectroscopic data to identify the spectroscopic characteristics of said specimen.
Claim 16
Dependent Claim
33 words
A method as in claim 12 wherein the step of converting includes the step of decimal to binary conversion and multiplexing the decimally coded data into said digital signal having a serial format.
Claim 17
Dependent Claim
46 words
The method as in claim 12 wherein said step of scanning the light reflected from said specimen uses a TV camera and said step of selectively gating includes the step of varying the horizontal and vertical components of the video signal generated by the TV camera.
References Cited (Backward Citations)
US3886331A
Cited
US3820898A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-03-18 | 1983-09-17 | 1984-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-03-18 | 1987-09-17 | 1988-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-03-18 | 1991-09-17 | 1992-03-18 | $7700.00 | Window Closed / Lapsed |