Patent US4942479A successfully refreshed from Google Patents.
← Back to Patent Explorer
US4942479A Expired / Lapsed US ⏱️ 0.0 years remaining

Image information processing apparatus

Assignee: Toshiba Corp
•
Filing: 1989-04-13
•
Granted: 1990-07-17
•
Expires: 2009-04-13
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract Plural items of image information having different pixel densities are stored on an optical disk. The pixel densities for the image information are stored in an image information memory address storage area of a magnetic disk, and conversion factors for converting the different pixel densities into a predetermined pixel density for an output device are stored in a pixel density conversion table storage area of the magnetic disk. When image information read out from the optical disk has a pixel density different from the predetermined pixel density, the pixel density associated with the read-out image information is read out from the image information memory address storage area. Then, the conversion factor associated with the read-out pixel density and the predetermined pixel density is read out from the pixel density conversion table storage area. The pixel density of the read-out image information is converted, according to the read-out conversion factor, by a magnification/reduction/rotation circuit, and then output from the output device.

Inventors

  • 👤 Masayuki Kanno

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-24 09:37
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/32; H04N1/32101; H04N1/32106; H04N1/32122; H04N1/40; H04N1/40068; H04N2201/00; H04N2201/32; H04N2201/3201; H04N2201/3225; H04N2201/3243; H04N2201/3254

Claims Analysis

Total Claims: 24
Claim 1
Independent Claim 184 words
An image information processing apparatus, comprising: means for obtaining information of a first pixel density by scanning an image; image information storing means for storing the obtained image information together with pixel density data representing the first pixel density; means for retrieving the stored image information together with the pixel density data; means for outputting the retrieved image information, said outputting means having a second pixel density; conversion factor storing means for storing pixel density conversion factors in both a horizontal and a vertical direction of a view image outputted from said outputting means; means for reading pixel density conversion factors in both the horizontal and the vertical directions corresponding to the first pixel density of the image information of said image information storing means and the second pixel density of said outputting means from said conversion factor storing means; and means for converting the first pixel density of the image information in both the horizontal and the vertical directions to the second pixel density of said outputting means according to the pixel density conversion factors read out from said conversion factor storing means.
Claim 2
Dependent Claim 184 words
An image information processing apparatus, comprising: means for obtaining information of a first pixel density by scanning an image; image information storing means for storing the obtained image information together with pixel density data representing the first pixel density; means for retrieving the stored image information together with the pixel density data; means for outputting the retrieved image information, said outputting means having a second pixel density; conversion factor storing means for storing pixel density conversion factors in both a horizontal and a vertical direction of a view image outputted from said outputting means; means for reading pixel density conversion factors in both the horizontal and the vertical directions corresponding to the first pixel density of the image information of said image information storing means and the second pixel density of said outputting means from said conversion factor storing means; and means for converting the first pixel density of the image information in both the horizontal and the vertical directions to the second pixel density of said outputting means according to the pixel density conversion factors read out from said conversion factor storing means.
Claim 3
Dependent Claim 19 words
The apparatus according to claim 1, wherein said horizontal and vertical directions correspond to main-scanning and sub-scanning directions, respectively.
Claim 4
Dependent Claim 16 words
The apparatus according to claim 1, wherein said conversion factor storing means includes an optical memory.
Claim 5
Dependent Claim 43 words
The apparatus according to claim 1, further comprising: communication control means for controlling data communication between said apparatus and another image information processing apparatus; and means for supplying data received from said another image information processing apparatus to said image information storing means.
Claim 6
Dependent Claim 15 words
The apparatus according to claim 1, wherein said information obtaining means includes an optical scanner.
Claim 7
Dependent Claim 14 words
The apparatus according to claim 1, wherein said outputting means includes a display device.
Claim 8
Dependent Claim 13 words
The apparatus according to claim 1, wherein said outputting means includes a printer.
Claim 9
Dependent Claim 63 words
The apparatus according to claim 1, wherein said retrieving means includes: retrieving memory means for storing retrieval codes, each retrieval code corresponding to image information stored in said image information storing means; means for inputting a desired retrieval code designating image information to be retrieved; and means for retrieving and outputting image information associated with said retrieval code input from said inputting means.
Claim 10
Dependent Claim 35 words
The apparatus according to claim 8, wherein said retrieving and outputting means includes means for comparing said desired retrieval code input by said inputting means with said retrieval codes stored in said retrieving memory means.
Claim 11
Dependent Claim 87 words
The apparatus according to claim 1, further comprising: means for determining whether the first pixel density of image information read out by said reading means coincides with the second pixel density of said outputting means; means for controlling a page buffer memory to store image information for one page when a coincidence is obtained in said determining means; and means for supplying the image information for one page to said outputting means to form a view of an image having a full size of said outputting means.
Claim 12
Dependent Claim 57 words
The apparatus according to claim 10, further comprising: means, when no coincidence is obtained by said determining means, for controlling said reading means to output the pixel density conversion factors of the image information and the outputting means so as to convert the pixel density of the image information to the pixel density of said outputting means.
Claim 13
Dependent Claim 254 words
An image information processing apparatus, comprising: means for obtaining a plurality of items of image information having a plurality of different pixel densities by scanning a plurality of images; image information storing means for storing the obtained plurality of items of image information together with items of pixel density data representing the different pixel densities; means for retrieving a desired item of stored image information together with corresponding pixel density data; means for outputting the retrieved image information, said outputting means having a fixed pixel density; first memory means for storing a pixel density of each image information stored in said image information storing means in association with each image information; second memory means for storing pixel density conversion factors in both a horizontal and a vertical direction corresponding to said different pixel densities; third memory means for storing pixel density conversion factors in both the horizontal and the vertical directions of a view image outputted from said outputting means; means for reading pixel density conversion factors in both the horizontal and the vertical directions corresponding to a first pixel density of the desired item of stored image information from said image information storing means and a second pixel density of said outputting means from said conversion factor storing means; and means for converting the first pixel density of the image information in both the horizontal and the vertical directions to the second pixel density of said outputting means according to the pixel density conversion factors read out from said conversion factor storing means.
Claim 14
Dependent Claim 254 words
An image information processing apparatus, comprising: means for obtaining a plurality of items of image information having a plurality of different pixel densities by scanning a plurality of images; image information storing means for storing the obtained plurality of items of image information together with items of pixel density data representing the different pixel densities; means for retrieving a desired item of stored image information together with corresponding pixel density data; means for outputting the retrieved image information, said outputting means having a fixed pixel density; first memory means for storing a pixel density of each image information stored in said image information storing means in association with each image information; second memory means for storing pixel density conversion factors in both a horizontal and a vertical direction corresponding to said different pixel densities; third memory means for storing pixel density conversion factors in both the horizontal and the vertical directions of a view image outputted from said outputting means; means for reading pixel density conversion factors in both the horizontal and the vertical directions corresponding to a first pixel density of the desired item of stored image information from said image information storing means and a second pixel density of said outputting means from said conversion factor storing means; and means for converting the first pixel density of the image information in both the horizontal and the vertical directions to the second pixel density of said outputting means according to the pixel density conversion factors read out from said conversion factor storing means.
Claim 15
Dependent Claim 19 words
The apparatus according to claim 12, wherein said horizontal and vertical directions correspond to main-scanning and sub-scanning directions, respectively.
Claim 16
Dependent Claim 16 words
The apparatus according to claim 12, wherein said conversion factor storing means includes an optical memory.
Claim 17
Dependent Claim 43 words
The apparatus according to claim 12, further comprising: communication control means for controlling data communication between said apparatus and another image information processing apparatus; and means for supplying data received from said another image information processing apparatus to said image information storing means.
Claim 18
Dependent Claim 16 words
The apparatus according to claim 12, wherein said image information obtaining means includes an optical scanner.
Claim 19
Dependent Claim 14 words
The apparatus according to claim 12, wherein said outputting means includes a display device.
Claim 20
Dependent Claim 13 words
The apparatus according to claim 12, wherein said outputting means includes a printer.
Claim 21
Dependent Claim 64 words
The apparatus according to claim 12, wherein said retrieving means includes: retrieving memory means for storing retrieval codes, each code corresponding to image information stored in said image information storing means; means for inputting a desired retrieval code, each code designating image information to be retrieved; and means for retrieving and outputting image information associated with said retrieval code input from said inputting means.
Claim 22
Dependent Claim 35 words
The apparatus according to claim 19, wherein said retrieving and outputting means includes means for comparing said desired retrieval code input by said inputting means with said retrieval codes stored in said retrieving memory means.
Claim 23
Dependent Claim 88 words
The apparatus according claim 12, further comprising: means for determining whether the first pixel density of image information read out by said reading means coincides with the second pixel density of said outputting means; means for controlling a page buffer memory to store image information for one page when a coincidence is obtained in said determining means; and means for supplying the image information for one page to said outputting means so as to form a view of an image having a full size of said outputting means.
Claim 24
Dependent Claim 57 words
The apparatus according to claim 21, further comprising: means, when no coincidence is obtained by said determining means, for controlling said reading means to output the pixel density conversion factors of the image information and the outputing means so as to convert the pixel density of the image information to the pixel density of said outputting means.

References Cited (Backward Citations)

US4280143A Cited
US4595956A Cited
US4679096A Cited
GB2158672A Cited
US4698688A Cited
US4814890A Cited
US4827349A Cited
EP0212131A2 Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1993-07-16 1994-01-15 1994-07-17 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1997-07-16 1998-01-15 1998-07-17 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2001-07-16 2002-01-15 2002-07-17 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag