Automatic hiding and revealing of a pointer during keyboard activity

• US 4,760,386 A
• Filed: 06/13/1986
• Issued: 07/26/1988
• Est. Priority Date: 06/13/1986
• Status: Expired due to Fees

• Current Assignee: International Business Machines Corporation
• Original Assignee: International Business Machines Corporation
• Inventors: Sheppard, Ronald K., Heath, Allen W.
• Primary Examiner(s): Brigance, Gerald L.
• Application Number:
  US06/873,757
• Time in Patent Office: 774 Days
• Field of Search: 340/706, 340/707, 340/708, 340/709, 340/710, 340/711, 340/712, 340/724, 178/18
• US Class Current: 345/180
• CPC Class Codes: G06F 3/04892 Arrangements for controlling cursor position based on codes indicative of cursor displacements from one discrete location to another, e.g. using cursor control keys associated to different directions or using the tab key arrangements for controlling cursor position based on coordinate signals G06F3/038
• CPC Class Codes: G09G 5/08 Cursor circuits

Abstract

A pointer controlled by a pointing device, such as a mouse, is temporarily removed from a visual display screen when a first character is being updated on the screen. The pointer is left hidden from the screen until the event causing screen updating has been idle for a predetermined period of time. The pointer is not removed from the screen if the keystroke or other hiding event is invalid in the current context of the application program. The pointer is also immediately redisplayed if an event associated with the pointing device, such as either pointing device movement of pointing device button clicking, is detected.

Claims

1. In a computer system having a keyboard, a visual display, and a pointing device, a method of displaying a pointer controlled by said pointing device on said visual display comprising:

removing said pointer from a presentation on said visual display upon receipt by said system of an event generated by said keyboard; and

displaying said pointer on said visual display after passage of a chosen time delay which begins in association with said event.

2. In the method of claim 1 wherein said event is a sequence of keystrokes in which any intervening idle period between said keystrokes in said sequence is shorter than said time delay.

3. In the method of claim 1 wherein said event is a valid event in which an application program can utilize said valid event.

4. In the method of claim 2 wherein said event is a stored sequence of keystrokes originally generated by said keyboard.

5. In the method of claim 2 further comprising:

immediately displaying said pointer on said visual display upon the detection of an event generated by said pointing device.

6. In the method of claim 5 wherein said time delay is generated by:

loading a first time value number in a random access memory; and

periodically decrementing or incrementing said first number until a second number is detected in said random access memory.

7. In the method of claim 2 wherein said pointing device comprises a mouse.

8. In the method of claim 2 wherein said pointing device comprises a light pen.

9. In the method of claim 2 wherein said pointing device comprises a tablet.

10. In the method of claim 1 wherein said pointing device comprises a joystick.

11. In a computer system having a keyboard, a visual display, and a pointing device, the improvement for displaying a pointer controlled by said pointing device on said visual display comprising:

means for removing said pointer from a presentation on said visual display upon receipt by said system of an event generated by said keyboard;

means for generating a time delay which begins in association with said event; and

means for displaying said pointer on said visual display after the completion of said time delay.

12. In the system of claim 11 wherein said event is a sequence of keystrokes in which any intervening idle period between said keystrokes in said sequence is shorter than said time delay.

13. In the system of claim 11 wherein said event is a valid event in which an application program can utilize said valid event.

14. In the system of claim 12 wherein said event is a stored sequence of keystrokes originally generated by said keyboard.

15. In the system of claim 12 further comprising:

means for immediately displaying said pointer on said visual display upon the detection of an event generated by said pointing device.

16. In the system of claim 15 wherein said means for generating said time delay comprises:

means for loading a first time value number in a random access memory; and

means for periodically decrementing or incrementing said first number until a second number is detected in said random access memory.

17. In the system of claim 15 wherein said means for generating said time delay comprises a hardward timer.

18. In the system of claim 12 wherein said pointing device comprises a mouse.

19. In the system of claim 12 wherein said pointing device comprises a light pen.

20. In the system of claim 12 wherein said pointing device comprises a tablet.