Text processing apparatus including fixed and scrolled display information

• US 5,142,669 A
• Filed: 07/29/1988
• Issued: 08/25/1992
• Est. Priority Date: 07/31/1987
• Status: Expired due to Term

• Current Assignee: Sharp Kabushiki Kaisha (Hon Hai Precision Industry Co., Ltd.)
• Original Assignee: Sharp Kabushiki Kaisha (Hon Hai Precision Industry Co., Ltd.)
• Inventors: Inoue, Katumi, Sakae, Ayumi
• Primary Examiner(s): Harkcom, Gary V.
• Assistant Examiner(s): JAFFE, MICHAEL
• Application Number:
  US07/225,890
• Time in Patent Office: 1,488 Days
• Field of Search: 364/521, 364/518, 340/724, 340/726, 395/155, 395/157, 395/144
• US Class Current: 715/784
• CPC Class Codes: G09G 5/346 for systems having a bit-mapped display memory

Abstract

A text processing apparatus includes a keyboard to input various kinds of text information and includes a display to display text information input from the keyboard and an area specifying device to specify an area of the text information displayed on the display device. A scroll instruction device is included to scroll the text information displayed on the display device, memories to store information for use in editing text information input from the keyboard, and a dispaly controller. Reference material can be input into a window on the display. When a scroll command is given, the window containing the reference material will scroll to an edge of the display and will stop. Text displayed outside the window can continue to scroll while the text in the window remains fixed.

Claims

1. An information processing apparatus which can display information in a scroll and fixed format comprising:

input means for inputting information;

display means including a screen which has boundary limits, responsive to the input means for displaying information in a scroll and fixed format;

area specifying means responsive to the input means, for specifying an area of information to be displayed on the screen in a window;

memories responsive to the input means to store information for editing;

scroll instruction means responsive to the input means for scrolling information;

control means responsive to the input means for displaying information defined by said area specifying means as a reference portion; and

said control means including a window control means for displaying the information in the window in a fixed format, so that the information in the window and the window do not move relative to each other, when the window reaches the boundary limits of the screen and while other information on the screen outside of the window is being scrolled.

2. The information apparatus of claim 1, wherein the information is text and the limits of the screen are the upper, lower, right, and left extremities of the screen.

3. The information apparatus of claim 1, wherein the information in the window is displayed in lines and columns.

4. The information apparatus of claim 3 wherein the information in lines and columns is information in an amount that is less than an amount of information input by the input means.

5. A method of processing text for display in a scroll and fixed format, comprising the steps of:

(a) providing a text;

(b) designating a specific portion of the text to be a reference portion;

(c) displaying a portion of the text on a screen;

(d) displaying the reference portion of the text in a window on the screen in a fixed format so that the portion of the text and the window do not move relative to each other;

(e) scrolling the text and the window containing the reference portion; and

(f) automatically stopping the window containing the reference portion when the window reaches the limits of the screen so that the reference portion is displayed while the text outside the window continues to scroll.