Data processing arrangements
AssigneeE M I Limited
InventorsGodfrey Newbold Hounsfield, Paul Anthony Beaven, Brian Herbert Lill
Life of this patent
Estimating the term…
Abstract
A data processing arrangement includes first storage means having storage locations arranged in a plurality of rows and second storage means comprising a single column of locations, one location being provided in said second storage means for each row of the locations in said first storage means. In order that the data stored in the two storage means can be correlated such that a combination of the data held in various locations of the first storage means can be compared with a corresponding value in a location of said second storage means, there is provided means for shifting the data held in the first and second storage means, at individually controllable rates, along said rows and said column respectively.
Claims8
A data processing arrangement including
- a. first storage means for storing electrical signals indicative of the value of a function at each of a plurality of different spatial locations of a region,
- b. second storage means for storing electrical signals indicative of the overall value of the function over linear combinations of some of said locations,
- c. means for correlating the information stored in said first and second storage means, to update the signals stored in said first storage means which relate to the locations of said combinations, comprising
- i. means for shifting the information stored in each of said storage means at respective rates,
- ii. means for controlling said rates in dependence upon the disposition of said linear combinations of elements with respect to said region and
- iii. means for combining some of the information stored in said first and second storage means, and
- d. means for replacing the signals in said second storage means with other signals indicative of a further overall value of the function over further linear combinations of some of said locations so that the signals in said first storage means may be further updated.
A scanning apparatus for investigating a body by means of penetrating radiation such as X- or .gamma.- radiation including a data processing arrangement including
- a. first storage means for storing electrical signals indicative of the value of a function at each of a plurality of different spatial locations of a region,
- b. second storage means for storing electrical signals indicative of the overall value of the function over linear combinations of some of said locations,
- c. means for correlating the information stored in said first and second storage means, to update the signals. stored in said first storage means which relate to the locations of said combinations, comprising
- i. means for shifting the information stored in each of said storage means at respective rates,
- ii. means for controlling said rates in dependence upon the disposition of said linear combinations of elements with respect to said region and
- iii. means for combining some of the information stored in said first and second storage means, and
- d. means for replacing the signals in said second storage means with other signals indicative of a further overall value of the function over further linear combinations of some of said locations so that the signals in said first storage means may be further updated.
Dependencies are inferred from the claim text.