Display apparatus which can scroll displayed data with regard to cursor position

Patent 4734689 Issued on March 29, 1988. Estimated Expiration Date:

February 24, 2006. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Abstract Claims Description Full Text

Patent References

Word processor and display
Patent #: 4495490
Issued on: 01/22/1985
Inventor: Hopper , et al.

Display terminal with a cursor responsive virtual distributed menu Patent #: 4586035
Issued on: 04/29/1986
Inventor: Baker , et al.

Inventor

Kurakake, Shigeo

Assignee

Casio Computer Co., Ltd.

Application

No. 06/833055 filed on 02/24/1986

US Classes:

345/684Scrolling

Examiners

Primary: Curtis, Marshall M.
Assistant: Fatahi-yar, Mahmoud

Attorney, Agent or Firm

Frishauf, Holtz, Goodman & Woodward

International Classes

G09G 5/34 (20060101)
G06F 3/033 (20060101)

Foreign Application Priority Data

1985-03-07 JP

Abstract

A display apparatus includes a document memory for storing data, a display section for displaying the data stored in a desired storage area of the document memory on a screen, and a scroll controller for designating data to be displayed on the display section and designating a cursor position to be displayed. When a cursor is located outside of a predetermined range on the screen, if a cursor-up or-down movement command is input, the displayed data is scrolled without moving the cursor position. When the cursor is located in the predetermined range on the screen, if the cursor-up or - down movement command is input, the cursor position changes in accordance with the command, and the displayed data is not scrolled. Even when the cursor is located outside of the predetermined range on the screen, if a storage area to be displayed by scrolling is not present in the document memory, or even if the storage area is present, if data to be displayed is not present on the screen, the cursor is displayed just as when located in the predetermined range.