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US5010245A
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Radiation transducing device with location identification
Assignee: FillFactory NV
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Filing: 1989-05-25
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Granted: 1991-04-23
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Expires: 2009-05-25
Abstract
Abstract A transducing device for sensing incident radiation includes an array of radiation sensitive elements, arranged in a matrix and interconnected to provide a plurality of interconnected rows and a plurality of interconnected columns of radiation sensitive elements. Comparator elements are connected to rows and columns of elements for comparing the magnitude of radiation received by the radiation sensitive elements to a predetermined threshold value. Encoding elements respond to outputs of the comparator elements for identifying radiation sensitive elements which have been exposed to radiation, including those elements where the radiation is maximum. The invention obviates the necessity of processing information from a large number of elements which do not hold useful information therein.
Inventors
- 👤 Bart M. H. L. Dierikx
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 06:23
CPC Classifications
H; H04; H04N; H04N25/00; H04N25/40; H04N25/47; H04N25/70; H04N25/703; H04N25/708; H04N25/76
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
94 words
A radiation transducing device for transducing radiation, comprising: an array of radiation sensitive elements, comparator elements connected to at least a portion of said array for comparing the amount of radiation received by the radiation sensitive elements to a predetermined threshold value, encoding element connected to said comparator elements for producing an output effective for identifying the location of said radiation sensitive elements which have been exposed to radiation and measuring means connected to said radiation sensitive elements for determining the amount of incident radiation collected in an element during a predetermined time period.
Claim 2
Dependent Claim
94 words
A radiation transducing device for transducing radiation, comprising: an array of radiation sensitive elements, comparator elements connected to at least a portion of said array for comparing the amount of radiation received by the radiation sensitive elements to a predetermined threshold value, encoding element connected to said comparator elements for producing an output effective for identifying the location of said radiation sensitive elements which have been exposed to radiation and measuring means connected to said radiation sensitive elements for determining the amount of incident radiation collected in an element during a predetermined time period.
Claim 3
Dependent Claim
18 words
The radiation transducing device of claim 1, in which the radiation sensitive elements are arranged in a matrix.
Claim 4
Dependent Claim
14 words
The radiation transducing device of claim 2, in which the matrix contains 100×100 elements.
Claim 5
Dependent Claim
14 words
The radiation transducing device of claim 2, in which the matrix contains 32×32 elements.
Claim 6
Dependent Claim
55 words
The radiation transducing device of claim 2, in which the matrix contains a plurality of rows of elements and a plurality of columns of elements and wherein the radiation sensitive elements of the same row and the same column are commonly connected to a respective comparator element for enabling identifying a row or column number.
Claim 7
Dependent Claim
38 words
The radiation transducing device of claim 5, in which two or more signals of two or more rows or columns of radiation sensitive elements are supplied to a common load for determining the maximum value of said signals.
Claim 8
Dependent Claim
17 words
The radiation transducing device of claim 1, in which said encoding elements comprise a combinatorial logic circuit.
Claim 9
Dependent Claim
23 words
The radiation transducing device of claim 7, in which two encoding elements are connected to the output of a respective single comparator element.
Claim 10
Dependent Claim
23 words
A radiation transducing device of claim 2, further including means for generating and propogating carry signals between the pixel elements in said array.
Claim 11
Dependent Claim
27 words
The radiation transducing device of claim 9, in which the carry signals generating means is effective for propogating the carry signals serially between the radiation sensitive elements.
Claim 12
Dependent Claim
50 words
The radiation transducing device of claim 10, in which the carry signals generating means comprises a sampling circuit for sampling the radiation contained in the radiation sensitive elements, a latching circuit for storing therein a result of the sampling, and a clocking circuit for clocking information through the latching circuit.
Claim 13
Dependent Claim
15 words
The radiation transducing device of claim 11, wherein the latching circuit comprises a flip flop.
Claim 14
Dependent Claim
32 words
The radiation transducing device of claim 2, in which the encoding elements comprise means for defining the boundaries of an area in the matrix in which at least two pixels are activated.
Claim 15
Dependent Claim
19 words
The radiation transducing device of claim 1, in which the device is completely monolitically integrated in a semiconductor substrate.
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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) | 1994-04-22 | 1994-10-22 | 1995-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-04-22 | 1998-10-22 | 1999-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-04-22 | 2002-10-22 | 2003-04-23 | $7700.00 | Window Closed / Lapsed |