Mouse driven remote communication system

• US 5,168,269 A
• Filed: 11/08/1990
• Issued: 12/01/1992
• Est. Priority Date: 11/08/1990
• Status: Expired due to Fees

• Current Assignee: Norton-Lambert Corp.
• Original Assignee: Norton-Lambert Corp.
• Inventors: Harlan, Duncan C.
• Primary Examiner(s): Oberley, Alvin E.
• Assistant Examiner(s): Mengistu, Amare
• Application Number:
  US07/610,710
• Time in Patent Office: 754 Days
• Field of Search: 340/709, 340/717, 364/188
• US Class Current: 715/856
• CPC Class Codes: G06F 3/038 Control and interface arrangements therefor, e.g. drivers or device-embedded control circuitry
• 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: G06F 3/1415 with means for detecting differences between the image stored in the host and the images displayed on the displays
• CPC Class Codes: G09G 5/08 Cursor circuits

Abstract

The present invention provides a system which has a first computer (herein termed the SUPPORT PC) and second remotely located computer (herein termed the CUSTOMER PC). The SUPPORT PC and the CUSTOMER PC each have a display. The image displayed on the CUSTOMER PC'"'"'s display is transmitted to and duplicated on the SUPPORT PC'"'"'s display. The SUPPORT PC is equipped with an analog input device (such as a mouse), the efficient operation of which requires immediate visual feedback. Signals from the input device are transmitted to the remote CUSTOMER PC. The images which appear on the display of the remote CUSTOMER PC are transmitted, relatively slowly, to the display of the SUPPORT PC. In order to provide immediate visual feedback to the operator of the input device at the SUPPORT PC, a Dynamic Temporary Dual Cursor is shown on the screen of the SUPPORT PC along with the regular cursor which is transmitted from the CUSTOMER PC. The Dynamic Temporary Dual Cursor is moved in quick synchronization with movement of the input device, that is, the Dynamic Temporary Dual Cursor moves in direct response to the input device. In due time the image of the cursor transmitted from the remote CUSTOMER PC coincides with and merges with the image of the Dynamic Temporary Dual Cursor.

Claims

1. In a computer system including a first computer which has a first display associated therewith, and a second computer which has a second display associated therewith, the combination of:

image transfer means connecting said computers for transferring screen images which appear on said second display to said first display, said transfer requiring a period of time whereby a particular image will appear at a particular location on said first display said period of time after said particular image appears at the corresponding particular location on said second display,

an input device which requires optical feedback from said first display for efficient operation, said first input device connected to said first computer,

first cursor forming means for forming and moving a dynamic temporary dual cursor on said first display in response to motion of said input device, and

second cursor forming means for forming and moving a second cursor on said second display in response to motion of said input device, said second cursor being transferred to said first display by said image transfer means,

whereby said first display device displays two cursors when said input device is moved, one of said cursors being formed by said first cursor forming means and moving immediately in response to movement of said input device, and the second of said cursors being formed on said second display by said second cursor forming means and being transferred to said first display after a period of time by said image transfer means, said two cursors coinciding after a period of time.

2. The system recited in claim 1 wherein said input device is a mouse.

3. The system recited in claim 1 wherein said computer are small personal computers.

4. The system recited in claim 1 wherein said computer communicate by relatively slow serial communication.

5. The system recited in claim 1 wherein said computer are connected by telephone lines and modems.

6. A system including a CUSTOMER PC which has a first display, and a SUPPORT PC which has a second display,

image transfer means connecting said CUSTOMER PC to said SUPPORT PC so that what appears on said first display appears on said second display after a slight time period, said time period being substantially equal to the time required to transmit data from said CUSTOMER computer to said SUPPORT computer,

a mouse input device connected to said SUPPORT PC,

first cursor forming means for forming and moving a first cursor on said first display in response to motion of said mouse, said image transfer means transferring said image of said cursor to said second display after said slight time period,

second cursor forming means for forming and moving a dynamic temporary dual cursor on said second display in response to motion of said mouse input device, after said time period, said dynamic temporary dual cursor coinciding with the image of said first cursor that is transferred from said first display to said second display

wherein said dynamic temporary dual cursor provides the operator of said SUPPORT PC with immediate optical feedback to guide the motion of said mouse even thought said first cursor is transferred to said SUPPORT PC only after said time period.

7. A system including a CUSTOMER PC which has a first display, and a SUPPORT PC which has a second display,

image transfer means connecting CUSTOMER PC to said SUPPORT PC so that what appears on said first display appears on said second display after a slight time period, said time period being substantially equal to the time required to transmit data from said CUSTOMER computer to said SUPPORT computer,

an input device which requires optical feedback connected to said SUPPORT PC,

first cursor forming means for forming and moving a first cursor on said first display in response to motion of said input device, said image transfer means transferring said image of said cursor to said second display after said slight time period,

second cursor forming means for forming and moving a dynamic temporary dual cursor on said second display in response to motion of said input device, after said time period, said dynamic temporary dual cursor coinciding with the image of said first cursor that is transferred from said first display to said second display

whereby said dynamic temporary dual cursor provides the operator of said SUPPORT PC with immediate optical feedback to guide the motion of said input device and said first cursor movement appears on said SUPPORT PC after said slight time period.

8. The system recited in claim 7 wherein said input device is a mouse.

9. The system recited in claim 7 wherein said SUPPORT PC and said CUSTOMER PC are IBM compatible personal computers.

10. A computer system with a display and an input device for an operator,

first pointer forming means for providing and moving a first pointer on said display in response to movement of said input device, said first pointer forming means moving said first pointer only after a first delay,

second pointer forming means for providing and moving a second pointer on said display in response to movement of said input device, said second pointer forming means moving said second pointer with a delay that is shorter than said first delay,

whereby when said input device is moved, for a short period of time, two pointers appear on said display and if said input device is not moved for a time period longer than said first delay, said two pointers merge into one pointer.