EP0349027A1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Image portion determination of a solid-state imaging device
Assignee: Imec
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Filing: 1989-05-25
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Granted: —
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Expires: 2009-05-25
Abstract
Abstract A radiation transducing device (1) comprising an array (2) of pixel elements (8) in which a pixel element is only read out when the radiation that is incident on that pixel element exceeds a predetermined threshold value. Encoding circuits (5, 6), connected to comparators (3, 4) and radiation measuring element (21) provide a digital representation (x₀₁, x₀₂, x₀₃, x₀₄, x a0 , y₀₁, y₀₂, y₀₃, y₀₄, y a0 of the portion of the pixel array, whose incident radiation amount exceeds said threshold value.
Inventors
- 👤 Marcel Henrietta Ludovicus Dierickx Bart
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-08 01:51
CPC Classifications
H; H04; H04N; H04N25/00; H04N25/40; H04N25/47; H04N25/70; H04N25/703; H04N25/708; H04N25/76
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
89 words
A transducing device for transducing radiation, comprising an array of elements sensitive for radiation, comparator elements connected to an array part of said elements, for comparing the amount of radiation received by a radiation sensitive element with a predetermined threshold value, an encoding element connected to said comparator element for producing a digital representation of the element on which radiation was incident and a measuring element connected to said radiation sensitive elements for determination of the amount of incident radiation to said corresponding element during a predetermined time period.
Claim 2
Dependent Claim
89 words
A transducing device for transducing radiation, comprising an array of elements sensitive for radiation, comparator elements connected to an array part of said elements, for comparing the amount of radiation received by a radiation sensitive element with a predetermined threshold value, an encoding element connected to said comparator element for producing a digital representation of the element on which radiation was incident and a measuring element connected to said radiation sensitive elements for determination of the amount of incident radiation to said corresponding element during a predetermined time period.
Claim 3
Dependent Claim
25 words
A radiation transducing device, in which the array of radiation sensitive elements is a matrix, of e.g. 100 x 100 or 32 x 32 elements.
Claim 4
Dependent Claim
25 words
A radiation transducing device, in which the array of radiation sensitive elements is a matrix, of e.g. 100 x 100 or 32 x 32 elements.
Claim 5
Dependent Claim
33 words
A radiation transducing device of claim 2, in which the radiation sensitive elements of one row or column are commonly connected to a comparator element, for determination of the row or column number.
Claim 6
Dependent Claim
40 words
A radiation transducing device of claim 3, in which two or more signals of two or more rows or columns of radiation sensitive elements are supplied to a common load for the determination of the maximum value of said signals.
Claim 7
Dependent Claim
22 words
A radiation transducing device according to one of the preceeding claims, in which said encoding element is embodied as combinatorial logical circuit.
Claim 8
Dependent Claim
22 words
A radiation transducing device of claim 5, in which two combinational encoding elements are connected to the output of the comparator elements.
Claim 9
Dependent Claim
24 words
A radiation transducing device of claim 1, in which means for providing a carry signal are provided between the pixel elements in said array.
References Cited (Backward Citations)
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