EP0487979A2 - Bildprozessor mit Cursor variabler Grösse für verschiedene Bildauflösungen - Google Patents

Bildprozessor mit Cursor variabler Grösse für verschiedene Bildauflösungen Download PDF

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Publication number
EP0487979A2
EP0487979A2 EP91119377A EP91119377A EP0487979A2 EP 0487979 A2 EP0487979 A2 EP 0487979A2 EP 91119377 A EP91119377 A EP 91119377A EP 91119377 A EP91119377 A EP 91119377A EP 0487979 A2 EP0487979 A2 EP 0487979A2
Authority
EP
European Patent Office
Prior art keywords
cursor
data
size
display
resolution
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP91119377A
Other languages
English (en)
French (fr)
Other versions
EP0487979A3 (en
Inventor
Jun c/o Intellectual Property Division Matsubara
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Corp
Original Assignee
Toshiba Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Toshiba Corp filed Critical Toshiba Corp
Publication of EP0487979A2 publication Critical patent/EP0487979A2/de
Publication of EP0487979A3 publication Critical patent/EP0487979A3/en
Withdrawn legal-status Critical Current

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    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
    • G09G5/08—Cursor circuits

Definitions

  • the present invention relates to an image processor which can improve visibility of a cursor or a pointer on displays having various resolutions.
  • An image processor utilized in, e.g., an optical filing system, a graphic work station, or the like generally comprises a bit-map display for displaying vector fonts, picture patterns, and the like. Bit-map displays having various sizes and various resolutions are available.
  • an image processor of the present invention comprises means for providing cursor data having a predetermined size; means for providing display data; correction means for correcting the size of the cursor data in accordance with a visual resolution of a display for displaying the display data; and means for supplying the cursor data corrected by the correction means to the display together with the display data.
  • a cursor size to be bit-map displayed is, e.g., 32 ⁇ 32 dots
  • high-resolution display A having a resolution of 2,432 ⁇ 2,432 dots
  • middle-resolution display B having a resolution of 1,216 ⁇ 1,216 dots are selectively used.
  • a 32 ⁇ 32 (dot) cursor is displayed on display B
  • a 64 ⁇ 64 (dot) cursor is displayed on display A.
  • a 9.6 ⁇ 9.6 (mm) cursor is displayed on display A, and a 9.6 ⁇ 9.6 (mm) cursor is also displayed on display B by using the processor of the present invention. That is, a user can perform a desired screen operation using the cursors which appear to have the same size regardless of the resolutions of the displays to be used.
  • Fig. 1 is a block diagram showing an arrangement of an image processor according to an embodiment of the present invention
  • Fig. 2 is an explanatory view for explaining a correction method of a cursor display by the arrangement shown in Fig. 1.
  • cursor data D10 shown in Fig. 2 is stored in cursor data memory (e.g., SRAM, EPROM, or the like) 10, and image data D11 to be displayed is stored in display memory (e.g., VRAM) 11.
  • Cursor data D10 output from memory 10 is subjected to size conversion (enlargement) by cursor size converter 12, and converted cursor data D12 is supplied to mixer 18.
  • cursor data D12 is mixed with image data D11 from memory 11 at a predetermined timing according to the position of the cursor on a screen.
  • Mixed cursor/image data D18 is supplied to bit-map display unit (a liquid crystal or plasma display, or a CRT monitor) 22 via I/O port 20.
  • cursor data D12 When four different data, e.g., black, white, background, and inverted background data are to be used as cursor data D12 to be processed by mixer 18, two bits can be assigned per dot (pel).
  • a cursor may be formed as a sprite.
  • Display unit 22 is provided with dip switch 24 for setting a resolution parameter, as needed.
  • resolution parameter data D24 e.g., 2-bit data
  • switch 24 is supplied to resolution parameter discriminator 26 via I/O port 20.
  • resolution parameter data D24 and a cursor size (enlargement factor) is as follows. That is, if 2-bit resolution parameter data D24 is "00", the cursor size is not changed; if it is "01”, the horizontal size of the cursor is enlarged twice without enlarging its vertical size; if it is "10”, the vertical size of the cursor is enlarged twice without enlarging its horizontal size; and if it is "11", both the vertical and horizontal sizes of the cursor are enlarged twice.
  • resolution parameter data D24 is 2-bit data
  • a maximum of 4 different parameters can only be designated. If data D24 consists of three or more bits, eight or more different parameters can be designated.
  • the size may be set using a special-purpose hardware component (e.g., a ROM including a parameter/size conversion table), or may be set in a software manner using a CPU.
  • resolution parameter discriminator 26 When input resolution parameter data D24 is "00", resolution parameter discriminator 26 outputs data D26 for setting both vertical and horizontal sizes of cursor size converter 12 to be “1" (when display unit 22 is middle-resolution display B). When input resolution parameter data D24 is "11”, resolution parameter discriminator 26 outputs data D26 for setting both vertical and horizontal sizes of cursor size converter 12 to be “2" (when display unit 22 is high-resolution display A).
  • cursor data D12 whose size is corrected according to resolution parameter data D24 is mixed with image data D11, and mixed data D18 is displayed on display unit 22.
  • middle-resolution display B a cursor having a 32 ⁇ 32 dot size is displayed on the 1,216 ⁇ 1,216 (dot) display screen in accordance with the resolution parameter "00".
  • high-resolution display A a cursor having a 64 ⁇ 64 dot size is displayed on the 2,432 ⁇ 2,432 (dot) display screen in accordance with the resolution parameter "11" to have the same visual size as the cursor displayed on display B.
  • the cursor size is automatically corrected in accordance with the type (specification) of display unit 22 connected through I/O port 20.
  • the cursor size may be manually corrected according to a user's favor.
  • a user switches an input mode of the image processor shown in Fig. 1 to a "cursor size correction" mode using a keyboard (or a pull-down menu selected by a mouse).
  • a cursor size correction mode is started, the user inputs a desired cursor size as the numbers of dots in the vertical and horizontal directions using, e.g., a ten-key pad (when various cursor sizes are set as default values, a desired cursor size can be selected from a menu using a mouse in place of the ten-key pad).
  • Input cursor size data D14 is temporarily stored in register 16.
  • cursor size converter 12 places priority on designation based on cursor size data D14 in register 16 over designation of the size based on data D26 from discriminator 26, thereby determining the size of cursor data D12 to be supplied to mixer 18.
  • a means for manually setting a cursor size is arranged, even when display unit 22 does not comprise dip switch 24 for setting a resolution parameter, a user can desirably change and correct a cursor size according to the resolution of display unit 22.
  • a reference cursor size (32 ⁇ 32 dots) is subjected to predetermined enlargement to cope with displays having various resolutions.
  • a large reference cursor size e.g., 64 ⁇ 64 dots
  • reduction is performed by converter 12 in place of enlargement so as to cope with displays having various resolutions.
  • a 23 ⁇ 32 (dot) cursor may be reduced to 16 ⁇ 16 dots or may be enlarged to 64 ⁇ 64 dots.
  • the cursor need not always be uniformly enlarged in the vertical and horizontal directions, but may be nonuniformly enlarged to have, e.g., 64 ⁇ 32 dots.
  • the display cursor size is visually increased although the two displays have the same physical resolution. In this case, the cursor size can be reduced to, e.g., 16 ⁇ 16.
  • a visual cursor size is changed if intervals between the user and the displays are respectively 0.5 m and 1.0 m.
  • the cursor size can be enlarged almost twice that when the user is at a distance of 0.5 m from the display.
  • the meaning of the "resolution” of the present invention is not limited to the physical number of dots of a display, but also includes a “resolution” visually sensed by a user when the size of the display (the diagonal length of the display screen of a CRT in units of inches) is changed, or when the distance between a user and a display is changed.
  • the image processor of the present invention since the number of dots of cursor (or pointer) data to be bit-map displayed can be corrected in accordance with the resolution of a display used for displaying the data, or the ratio of the numbers of dots in the vertical and horizontal directions, a cursor having a preferable size for a user can be displayed on various displays.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Controls And Circuits For Display Device (AREA)
EP19910119377 1990-11-29 1991-11-13 Image processor with size-variable cursor for various display resolutions Withdrawn EP0487979A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2332984A JPH04199190A (ja) 1990-11-29 1990-11-29 画像処理装置
JP332984/90 1990-11-29

Publications (2)

Publication Number Publication Date
EP0487979A2 true EP0487979A2 (de) 1992-06-03
EP0487979A3 EP0487979A3 (en) 1992-11-19

Family

ID=18261009

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19910119377 Withdrawn EP0487979A3 (en) 1990-11-29 1991-11-13 Image processor with size-variable cursor for various display resolutions

Country Status (2)

Country Link
EP (1) EP0487979A3 (de)
JP (1) JPH04199190A (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994027277A1 (en) * 1993-05-10 1994-11-24 Philips Electronics N.V. Circuit arrangement for controlling the display of a cursor
WO1996035164A1 (en) * 1995-05-03 1996-11-07 International Business Machines Corporation Computer workstation

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3725194A1 (de) * 1986-07-30 1988-02-18 Sharp Kk Wortprozessor
DE4102733A1 (de) * 1990-01-30 1991-08-08 Mitsubishi Electric Corp Textanzeigegeraet und verfahren zum anzeigen von text

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3725194A1 (de) * 1986-07-30 1988-02-18 Sharp Kk Wortprozessor
DE4102733A1 (de) * 1990-01-30 1991-08-08 Mitsubishi Electric Corp Textanzeigegeraet und verfahren zum anzeigen von text

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
RESEARCH DISCLOSURE. vol. 300, no. 88, April 1989, HAVANT GB page 290; 'Dynamically Changing Cursors' *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994027277A1 (en) * 1993-05-10 1994-11-24 Philips Electronics N.V. Circuit arrangement for controlling the display of a cursor
WO1996035164A1 (en) * 1995-05-03 1996-11-07 International Business Machines Corporation Computer workstation

Also Published As

Publication number Publication date
EP0487979A3 (en) 1992-11-19
JPH04199190A (ja) 1992-07-20

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