EP0051291A2
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EP
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Document filing system
Assignee: Toshiba Corp
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Filing: 1981-10-29
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Granted: —
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Expires: 2001-10-29
Abstract
Abstract Picture information temporarily stored in a buffer memory 15) is reduced to a scale through a size conversion circuit (7) and stored in a refresh memory (75, 76) in an interface device (10) for display. A cursor of a predetermined size is set with respect to the picture information in the refresh memory (75, 76). Cursor-added picture information or partial picture information enclosed by the cursor is displayed on the screen of a CRT display unit (16).
Inventors
- 👤 Kazuhiko Iida
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-09 14:28
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/387; H04N1/393; H04N1/3935; G; G06; G06T; G06T3/00; G06T3/40; G09; G09G; G09G5/00; G09G5/08; H04N1/3872; H04N1/3873; H04N1/3875
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
196 words
A document filing system comprising means (11) for reading out picture information on a document, means (5, 13) for storing the picture information so read out, and means (4, 5, 16, 17) for retrieving the stored picture information and for reading out desired picture information, the document filing system including a buffer memory (5) for temporarily storing the read out picture information, a size conversion circuit (7) for performing the enlarging or reducing of the picture informing read out from the buffer memory (5), a refresh memory (75, 76) for storing the picture information obtained from the size conversion circuit (7), a display unit (16) for displaying the picture information in the refresh memory (75, 76), a cursor display unit (80) for setting a cursor of a predetermined size with respect to the picture information in the refresh memory (75, 76) which is displayed on the screen of the display unit (16), and control means (2) for causing the picture information enclosed by the cursor to be read out from the buffer memory (5), in which the picture information read out by the control means (2) is displayed on the screen of the display unit (16).
Claim 2
Dependent Claim
196 words
A document filing system comprising means (11) for reading out picture information on a document, means (5, 13) for storing the picture information so read out, and means (4, 5, 16, 17) for retrieving the stored picture information and for reading out desired picture information, the document filing system including a buffer memory (5) for temporarily storing the read out picture information, a size conversion circuit (7) for performing the enlarging or reducing of the picture informing read out from the buffer memory (5), a refresh memory (75, 76) for storing the picture information obtained from the size conversion circuit (7), a display unit (16) for displaying the picture information in the refresh memory (75, 76), a cursor display unit (80) for setting a cursor of a predetermined size with respect to the picture information in the refresh memory (75, 76) which is displayed on the screen of the display unit (16), and control means (2) for causing the picture information enclosed by the cursor to be read out from the buffer memory (5), in which the picture information read out by the control means (2) is displayed on the screen of the display unit (16).
Claim 3
Dependent Claim
145 words
A document filing system according to claim 1, in which said size conversion circuit (7) comprises means (401 to 405) for sequentially shiftably holding the picture information each corresponding to one scanning line, means (406 to 412) for delivering local information of a predetermined bit length from the holding means (401 to 405), a product sum calculation circuit (415) for obtaining a product sum of the local information supplied from the delivering means (406 to 412), means (430, 431) for supplying a reference position information of the local information being size-converted according to magnifying or reducing rate information supplied from a central processing unit (2) to the product sum calculation circuit (415), and a comparator (432) for causing an output of the product sum calculation circuit (415) to be compared with a predetermined value to generate a signal corresponding to a size-converted picture element bits.
Claim 4
Dependent Claim
166 words
A document filing system according to claim 1, in which said cursor display unit (80) comprises first and second cursor memories (81, 82) for holding X and Y direction position information of the cursor according to write-in code information from the central processing unit (2), a first address counter (83) for counting a cursor clock signal supplied from the refresh memory (75), a second address counter (84) for counting horizontal synchronizing signals supplied from the refresh memory, a first decoder (85) for detecting a coincidence between the content of the first cursor memory (81) and the content of the first address counter (83), a second decoder (86) for detecting a coincidence between the content of the second cursor memory (82) and the content of the second address counter (84), and a logical operation circuit (87 to 89, 901 to 903) for forming a cursor video signal, according to the outputs of the first and second decoders (85, 86), which is supplied to the display unit (16).
References Cited (Backward Citations)
No citation records indexed.
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