Method and apparatus for displaying data patterns in information systems

• US 6,483,515 B1
• Filed: 04/09/1999
• Issued: 11/19/2002
• Est. Priority Date: 04/09/1999
• Status: Active Grant

• Current Assignee: Oracle America, Inc. (Oracle Corporation)
• Original Assignee: Sun Microsystems Incorporated (Oracle Corporation)
• Inventors: Hanko, James G.
• Primary Examiner(s): Sheikh, Ayaz
• Assistant Examiner(s): NGUYEN, THU HA T
• Application Number:
  US09/289,798
• Time in Patent Office: 1,320 Days
• Field of Search: 345/418, 345/430, 345/501, 345/502, 345/530, 345/545, 345/531, 345/568, 358/456, 395/124, 395/132, 709/245-247, 709/223-226, 709/217-219
• US Class Current: 345/545
• CPC Class Codes: G06F 3/1454 involving copying of the display data of a local workstation or window to a remote workstation or window so that an actual copy of the data is displayed simultaneously on two or more displays, e.g. teledisplay
• CPC Class Codes: G09G 5/393 Arrangements for updating the contents of the bit-mapped memory

Abstract

A method of updating a remote display device associated with a remote system to fill at least a portion of a display area on the display device with a tiled pattern including repetitions of a tile image data stored at a host system interconnected to the remote system via a communication link. The host system determines the number of replications of the tile image data to fill the display area and transmits display information to the remote system via the communication link, including: the tile image data; a number of repetitions of said tile image data to fill said portion of said display area; and coordinate data representing the position of the display area on the display device. The remote system receives the display information and generates the tile pattern by performing steps including: storing the tile image data starting at a location in an on-screen frame buffer corresponding to a coordinate location within the display area relative to said display area coordinate data; and copying the tile image data into the frame buffer until said portion of the display area is filled with said tiled pattern.

Claims

1. In an information processing system including a host system interconnected to a remote system via a communication link, a method of updating a remote display device associated with said remote system to fill at least a portion of a display area on the display device with a tiled pattern including repetitions of a tile image data stored at the host system, the method comprising the steps of:

(a) the host system determining the number of repetitions of the tile image data to fill said portion of the display area and transmitting display information to the remote system via the communication link, the display information including;

(1) said tile image data; and

(2) replication information including;

(i) information representing a number of repetitions of said tile image data to fill said portion of said display area, and (ii) coordinate data representing the position of the display area on the display device; and

(b) the remote system receiving the display information and generating said tile pattern by performing steps including;

(1) storing the tile image data in a frame buffer starting at a location corresponding to a coordinate location within the display area relative to said display area coordinate data; and

(2) replicating the tile image data into the frame buffer based on the replication information until said portion of the display area is filled with said tiled pattern.

2. The method of claim 1 wherein:

(i) transmitting display information from the host system to the remote system further comprises transmitting a coordinate location on the display device for each repetition of the tile image, and (ii) copying tile image data by the remote system comprises copying the tile image data into the frame buffer at locations corresponding to said coordinate locations on the display device.

3. The method of claim 1 further comprising the step of the remote system performing image processing of the received tile image data before displaying on the display device.

4. The method of claim 1, wherein:

(i) the tile image is rectangular and (ii) the display area is rectangular.

5. The method of claim 1, wherein the display area is rectangular and comprises a non-rectangular display region and a non-display clipped region, said method further comprising the steps of the host system dividing the display region into one or more rectangular display regions and performing the steps (a) and (b) for each rectangular display region utilizing at least a portion the tile image data for filling each rectangular display region with repetitions of said portion of the tile image data.

6. The method of claim 1, wherein (a) the host system comprises a data source system, and (b) the remote system comprises a human interface device.

7. The method of claim 1, wherein said display area coordinate data comprises an offset specifying the position of the display area relative to an origin coordinate on the display device.

8. The method of claim 1, wherein the information processing system comprises a plurality of host systems and a plurality of remote systems with associated display devices.

25. The method of claim 1, wherein the display device can only be accessed by the host system through the remote system.

26. The method of claim 6, wherein the host system can only be accessed by the human interface device through the remote system.

9. In an information processing system including a host system interconnected to a remote system via a communication link, a method of updating a remote display device associated with said remote system to fill at least a portion of a display area on the display device with a tiled pattern including repetitions of a tile image data stored at the host system, the method comprising the steps of:

(a) the host system determining the number of repetitions of the tile image data to fill said portion of the display area and transmitting display information to the remote system via the communication link, the display information including;

(1) said tile image data; and

(2) replication information including;

(i) replication commands corresponding to a number of repetitions of said tile image data to fill said portion of said display area, and (ii) a coordinate location on the display device for each repetition of the tile image; and

(b) the remote system receiving the display information and generating said tile pattern by performing steps including;

(1) storing the tile image data in a frame buffer starting at a location corresponding to a coordinate location within the display area relative to said display area coordinate data; and

(2) replicating the tile image data into the frame buffer at locations corresponding to said coordinate locations on the display device in response to the replication commands until said portion of the display area is filled with said tiled pattern.

10. The method of claim 9, wherein the display area is rectangular and comprises a non-rectangular display region and a non-display clipped region, said method further comprising the steps of the host system dividing the display region into one or more rectangular display regions and performing the steps (a) and (b) for each rectangular display region utilizing at least a portion the tile image data for filling each rectangular display region with repetitions of said portion of the tile image data.

11. The method of claim 9 further comprising the step of the remote system performing image processing of the received tile image data before displaying on the display device.

12. The method of claim 9, wherein (a) the host system comprises a data source system, and (b) the remote system comprises a human interface device.

13. The method of claim 9, wherein the information processing system comprises a plurality of host systems and a plurality of remote systems with associated display devices.

14. An information processing system including a host system interconnected to a remote system via a communication link for updating a remote display device associated with said remote system to fill at least a portion of a display area on the display device with a tiled pattern including repetitions of a tile image data stored at the host system, wherein:

the host system is configured by program instructions for determining the number of repetitions of the tile image data to fill the display area and for transmitting display information to the remote system via the communication link, the display information including;

(a) said tile image data; and

(b) replication information including;

(1) information representing a number of repetitions of said tile image data to fill said portion of said display area, and (2) coordinate data representing the position of the display area on the display device; and

the remote system is configured by program instructions for receiving the display information and generating said tile pattern by performing steps including;

(c) storing the tile image data in a frame buffer starting at a location corresponding to a coordinate location within the display area relative to said display area coordinate data; and

(d) replicating the tile image data into the frame buffer based on the replication information until said portion of the display area is filled with said tiled pattern.

15. The information system of claim 14 wherein:

(i) the host system further incudes program instructions for transmitting a coordinate location on the display device for each repetition of the tile image, and (ii) the remote system further includes program instructions for copying the tile image data into the frame buffer at locations corresponding to said coordinate locations on the display device.

16. The information system of claim 14 wherein the remote system further includes program instructions for performing image processing of the received tile image data before displaying on the display device.

17. The information system of claim 14, wherein the display area is rectangular and comprises a non-rectangular display region and a non-display clipped region, and wherein the host system further includes program instructions for dividing the display region into one or more rectangular display regions and performing the steps (a) through (d) for each rectangular display region utilizing at least a portion the tile image data for filling each rectangular display region with repetitions of said portion of the tile image data.

18. The information system of claim 14, wherein (a) the host system comprises a data source system, and (b) the remote system comprises a human interface device.

19. The information system of claim 14, wherein the information processing system comprises a plurality of host systems and a plurality of remote systems with associated display devices.

20. In an information processing system including a host system interconnected to a remote system via a communication link, a display system for updating a remote display device associated with said remote system to fill at least a portion of a display area on the display device with a tiled pattern including repetitions of a tile image data stored at the host system, the display system comprising:

means at the host system for determining the number of replications of the tile image data to fill the display area,

means for transmitting display information from the host system to the remote system via the communication link, the display information including;

(a) said tile image data;

(b) replication information including;

(1) replication commands corresponding to a number of repetitions of said tile image data to fill said portion of said display area, and (2) a coordinate location on the display device for each repetition of the tile image; and

means for receiving the display information in the remote system for receiving and generating said tile pattern including;

(c) means for storing the tile image data in a frame buffer starting at a location corresponding to a coordinate location within the display area relative to said display area coordinate data; and

(d) means for replicating the tile image data into the frame buffer at locations corresponding to said coordinate locations on the display device in response to the replication commands until said portion of the display area is filled with said tiled pattern.

21. The display system of claim 20, wherein the display area is rectangular and includes a non-rectangular display region and a non-display clipped region, and wherein the display system further includes means at the host system for dividing the display region into one or more rectangular display regions and for each rectangular display region utilizing at least a portion the tile image data for filling each rectangular display region with repetitions of said portion of the tile image data.

22. The display system of claim 20 further comprising means for performing image processing of the received tile image data before displaying on the display device.

23. The display system of claim 20, wherein (a) the host system comprises a data source system, and (b) the remote system comprises a human interface device.

24. The display system of claim 20, wherein the information processing system comprises a plurality of host systems and a plurality of remote systems with associated display devices.