US4029948A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radiography
Assignee: QED Intellectual Property Ltd
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Filing: 1975-07-10
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Granted: 1977-06-14
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Expires: 1995-07-10
Abstract
Abstract In an apparatus for displaying representation of body sections derived, for example, from a diagnostic X-ray apparatus a further representation is provided for another body section by interpolation between the derived representations. The data for elements of the derived representation are stored and those relating to corresponding elements are withdrawn simultaneously for the interpolation to provide the corresponding element of the further representation. Any of the representations may be displayed individually or they may be displayed successively in a sequence relating to their position in the body.
Inventors
- 👤 Godfrey Newbold Hounsfield
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:27
CPC Classifications
A; A61; A61B; A61B6/00; A61B6/02; A61B6/03; A61B6/032; A61B6/52; A61B6/5211; A61B6/5229; A61B6/5235; Y; Y10; Y10S; Y10S378/00; Y10S378/901
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
114 words
Apparatus for displaying a representation of body sections for use, for example, in diagnostic X-ray apparatus including storage means for storing data signals representing the absorption coefficient of elements of two-dimensional spaced arrays of elements notionally delineated in respective spaced cross-sections of the body, means providing weighting functions, means for weighting data for corresponding elements of said first mentioned arrays with appropriate weighting functions to provide interpolated data signals according to predetermined interpolating functions said interpolated data signals representing coefficients for corresponding elements of another array of elements notionally delineated in another cross-section of said body intermediate the first mentioned body section and means for displaying a repesentation of any of said body sections.
Claim 2
Dependent Claim
114 words
Apparatus for displaying a representation of body sections for use, for example, in diagnostic X-ray apparatus including storage means for storing data signals representing the absorption coefficient of elements of two-dimensional spaced arrays of elements notionally delineated in respective spaced cross-sections of the body, means providing weighting functions, means for weighting data for corresponding elements of said first mentioned arrays with appropriate weighting functions to provide interpolated data signals according to predetermined interpolating functions said interpolated data signals representing coefficients for corresponding elements of another array of elements notionally delineated in another cross-section of said body intermediate the first mentioned body section and means for displaying a repesentation of any of said body sections.
Claim 3
Dependent Claim
42 words
An apparatus according to claim 1 wherein said storage means is divided into zones each having an independent input/output channel and including means for applying the data signals for adjacent pairs of said first mentioned arrays in diferent ones of said zones.
Claim 4
Dependent Claim
15 words
An apparatus according to claim 1 wherein said storage means is a video disc store.
Claim 5
Dependent Claim
21 words
An apparatus according to claim 1 wherein said other array is situated substantially midway between two of said first mentioned arrays.
Claim 6
Dependent Claim
22 words
An apparatus according to claim 1 arranged to display the said representations in a sequence related to their position in the body.
References Cited (Backward Citations)
US3582651A
Cited
US3778614A
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US3944833A
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US3679823A
Cited
US3818220A
Cited
US3894181A
Cited
US3950613A
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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) | 1980-06-13 | 1980-12-13 | 1981-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-06-13 | 1984-12-13 | 1985-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-06-13 | 1988-12-13 | 1989-06-14 | $7700.00 | Window Closed / Lapsed |