US4598368A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Superposed image display device
Assignee: Toshiba Corp
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Filing: 1983-12-27
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Granted: 1986-07-01
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Expires: 2003-12-27
Abstract
Abstract There is provided a superposed image display device to display image signals from a plurality of image diagnostic apparatuses such as an X-ray CT apparatus, NMR CT apparatus, etc. This display device comprises memories to store the image signals from the CT apparatuses and NMR CT apparatus, multipliers to multiply the image signals read out from the memories by K1 and K2, an adder to add the output signals of the multipliers, and a display device to display the output signal of the adder.
Inventors
- 👤 Yoshiyuki Umemura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:54
CPC Classifications
G; G01; G01R; G01R33/00; G01R33/20; G01R33/44; G01R33/48; G01R33/54; G01R33/56; H; H04; H04N; H04N5/00; H04N5/30; H04N5/32; H04N5/3205
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
232 words
A device for displaying an image of an object comprising: a first apparatus for generating a plurality of first image signals which each represent one of a plurality of picture elements comprising an image of said object obtained using a first imaging technique, said first apparatus including a first image signal pickup mechanism to obtain said first image signals; a second apparatus for generating a plurality of second image signals which each represent one of a plurality of picture elements comprising another image of said object obtained using a second imaging technique, said second apparatus including a second image signal pickup mechanism which is separate and distinct from said first image signal pickup mechanism; means for storing said first image signals at first address locations, with each first address location corresponding to the location in said object represented by the picture element corresponding to said first image signal stored at that first address location; means for storing said second image signals at second address locations, with each second address location corresponding to the location in said object represented by the picture element corresponding to said second image signal stored at that second address location; means for independently operating upon said stored first and second image signals; means for simultaneously displaying each operated upon first and second image signal from first and second address locations corresponding to the same location in said object.
Claim 2
Independent Claim
232 words
A device for displaying an image of an object comprising: a first apparatus for generating a plurality of first image signals which each represent one of a plurality of picture elements comprising an image of said object obtained using a first imaging technique, said first apparatus including a first image signal pickup mechanism to obtain said first image signals; a second apparatus for generating a plurality of second image signals which each represent one of a plurality of picture elements comprising another image of said object obtained using a second imaging technique, said second apparatus including a second image signal pickup mechanism which is separate and distinct from said first image signal pickup mechanism; means for storing said first image signals at first address locations, with each first address location corresponding to the location in said object represented by the picture element corresponding to said first image signal stored at that first address location; means for storing said second image signals at second address locations, with each second address location corresponding to the location in said object represented by the picture element corresponding to said second image signal stored at that second address location; means for independently operating upon said stored first and second image signals; means for simultaneously displaying each operated upon first and second image signal from first and second address locations corresponding to the same location in said object.
Claim 3
Dependent Claim
38 words
A device of claim 1 wherein said operating means includes means for outputting at the same time, from said first and second means for storing, first and second image signals corresponding to the same location in said object.
Claim 4
Dependent Claim
43 words
A device of claim 2 wherein said operating means further includes first and second means for multiplying said first and second image signals by respective adjustable first and second coefficients upon outputting of said signals from said first and second means for storing.
Claim 5
Dependent Claim
16 words
A device of claim 3 wherein the sum of said first and second coefficients is 1.
Claim 6
Dependent Claim
27 words
A device of claim 3 wherein said means for simultaneously displaying includes an adder coupled to add together outputs of said first and second means for multiplying.
Claim 7
Dependent Claim
33 words
A device of claim 2 wherein said operating means further includes first and second means for spatially filtering said first and second image signals with respective adjustable first and second spatial frequency characteristics.
Claim 8
Dependent Claim
24 words
A device of claim 6 wherein said first and second means for spatially filtering each comprises a linear stationary non-recursive 3×3 type digital filter.
Claim 9
Dependent Claim
97 words
A device of claim 6 wherein said first and second means for spatially filtering each comprises a digital filter, a temporary memory, first and second multipliers and an adder, with said digital filter and said first multiplier coupled to receive the same image signals, said temporary memory coupled to store filtered image signals from said digital filter, said second multiplier coupled to receive said image signals stored in said temporary memory, and the outputs of said first and second multipliers coupled to first and second inputs of said adder to be combined through operation of said adder.
Claim 10
Dependent Claim
31 words
A device of claim 6 wherein said first and second means for spatially filtering includes an adder coupled to add together outputs of said first and second means for spatially filtering.
Claim 11
Dependent Claim
37 words
A device of claim 1 wherein said means for simultaneously displaying includes a color display device having first and second color signal input terminals to which said operated upon first and second image signals are respectively coupled.
Claim 12
Dependent Claim
70 words
A device of claim 1 wherein said means for simultaneously displaying includes a color display device having first and second color signal input terminals and means for selectively mixing said operated upon first and second imaging signals to provide resultant first and second mixed signals, respectively, and means for coupling said first and second mixed signals to said first and second signal output terminals of said color display device, respectively.
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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) | 1989-06-30 | 1989-12-30 | 1990-07-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-06-30 | 1993-12-30 | 1994-07-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-06-30 | 1997-12-30 | 1998-07-01 | $7700.00 | Window Closed / Lapsed |