Method and apparatus for identifying display monitor functionality and compatibility

• US 6,223,283 B1
• Filed: 07/17/1998
• Issued: 04/24/2001
• Est. Priority Date: 07/17/1998
• Status: Expired due to Term

• Current Assignee: Hewlett-Packard Development Company, L.P. (HP Inc.)
• Original Assignee: Compaq Computer Corporation (HP Inc.)
• Inventors: Nott, William, Chaiken, Craig L.
• Primary Examiner(s): Heckler, Thomas M.
• Application Number:
  US09/118,386
• Time in Patent Office: 1,012 Days
• Field of Search: 713/1, 713/2, 713/100, 713/200, 713/201, 710/8, 710/15, 710/19, 348/739, 345/211
• US Class Current: 713/1
• CPC Class Codes: G09G 2370/042 for monitor identification
• CPC Class Codes: G09G 2370/10 Use of a protocol of communication by packets in interfaces along the display data pipeline
• CPC Class Codes: G09G 5/006 Details of the interface to the display terminal specific for a display terminal using a CRT G09G1/167; using a flat panel G09G3/2096; circuits for interfacing with colour displays G09G5/04

Abstract

A monitor includes a file that identifies one or more compatible monitors and/or a list of features of the monitor. A processing unit, such as a computer, that does not specifically support the particular monitor may nonetheless configure itself to operate effectively with the monitor. If the processing unit supports a compatible monitor, it configures itself to operate with the compatible monitor. Otherwise, the processing unit may configure itself to support the features of the particular monitor.

Claims

1. A display monitor having given features comprising:

a housing;

a screen disposed in the housing; and

a memory device disposed in the housing, the memory device storing a file identifying (1) a compatible monitor and (2) the given features of the display monitor.

2. The display monitor, as set forth in claim 1, wherein the file comprises an Extended Display Identification Data (EDID) file.

3. The display monitor, as set forth in claim 1, wherein the file identifies a plurality of compatible monitors.

4. The display monitor, as set forth in claim 1, wherein the file identifies the given features using feature flags.

5. A device comprising:

a display monitor having given features and having a file stored therein, the file containing information which identifies (1) another monitor compatible with the display monitor and (2) the given features of the display monitor; and

a processing unit being connectable to the display monitor to receive the information contained within the file, the processing unit being configurable to operate with the display monitor in response to the information.

6. The device, as set forth in claim 5, wherein the file comprises an Extended Display Identification Data (EDID) file.

7. The device, as set forth in claim 5, wherein the file identifies a plurality of compatible monitors.

8. The device, as set forth in claim 5, wherein the file identifies the given features using feature flags.

9. The device, as set forth in claim 5, wherein the display monitor and the processing unit are disposed in an integral housing.

10. The device, as set forth in claim 5, wherein the display monitor and the processing unit are disposed in separate housings.

11. The device, as set forth in claim 5, wherein the processing unit comprises an operating system having a list of supported monitors, the operating system configuring the processing unit to operate with the compatible monitor identified in the file in response to the list of supported monitors containing the compatible monitor identified in the file, and the operating system configuring the processing unit to operate with a monitor having the given features in response to the list of supported monitors not containing the compatible monitor identified in the file.

12. A display monitor having given features and being functionally compatible with at least one other type of monitor comprising:

a housing;

a screen disposed in the housing; and

a memory device disposed in the housing, the memory device storing an Extended Display Identification Data (EDID) file identifying one of the at least one other type of compatible monitor and identifying the given features of the display monitor.

13. The display monitor, as set forth in claim 12, wherein the EDID file identifies a plurality of compatible monitors.

14. The display monitor, as set forth in claim 12, wherein the EDID file identifies the given features using feature flags.

15. A device comprising:

a display monitor having given features and being compatible with at least one other type of monitor, the display monitor having an Extended Display Identification Data (EDID) file stored therein, the EDID file containing information which identifies one of the at least one other type of compatible monitor and which identifies the given features of the display monitor; and

a processing unit having a list of supported monitors, the processing unit configuring itself to operate with the one of the at least one other type of compatible monitor in response to the list of supported monitors containing the one of the at least one other type of compatible monitor contained in the EDID file, and the processing unit configuring itself to operate with a monitor having the given features in response to the list of supported monitors not containing the one of the at least one other type of compatible monitor contained in the EDID file.

16. The device, as set forth in claim 15, wherein the EDID file identifies a plurality of compatible monitors.

18. The device, as set forth in claim 15, wherein the display monitor and the processing unit are disposed in an integral housing.

19. The device, as set forth in claim 15, wherein the display monitor and the processing unit are disposed in separate housings.

20. The device, as set forth in claim 15, wherein the processing unit comprises an operating system having the list of supported monitors, the operating system configuring the processing unit to operate with the compatible monitor identified in the EDID file in response to the list of supported monitors containing the compatible monitor identified in the EDID file, and the operating system configuring the processing unit to operate with a monitor having the given features in response to the list of supported monitors not containing the compatible monitor identified in the EDID file.

17. A device comprising:

a monitor having given features and being compatible with at least one other type of monitor, the monitor having an Extended Display Identification Data (EDID) file stored the rein, the EDID file containing information which identifies one of the at least one other type of compatible monitor and which identifies the given features of the monitor; and

a processing unit having a list of supported monitors, the processing unit configuring itself to operate with the one of the at least one other type of compatible monitor in response to the list of supported monitors containing the one of the at least one other type of compatible monitor contained in the EDID file, and the processing unit configuring itself to operate with a monitor having the given features in response to the list of supported monitors not containing the one of the at least one other type of compatible monitor contained in the EDID file.

21. A computer comprising:

a processing unit being connectable to read an Extended Display Identification Data (EDID) file from a display monitor, the EDID file containing information which identifies an other type of compatible monitor and which identifies given features of the display monitor, the processing unit storing a list of supported monitors and having a program which configures the processing unit to operate with the other type of compatible monitor in response to the list of supported monitors containing the other type of compatible monitor contained in the EDID file, and which configures the processing unit to operate with a monitor having the given features in response to the list of supported monitors not containing the other type of compatible monitor contained in the EDID file.

22. The computer, as set forth in claim 21, further comprising:

a display monitor having given features and being compatible with at least one other type of monitor, the display monitor having an Extended Display Identification Data (EDID) file stored therein, the EDID file containing information which identifies one of the at least one other type of compatible monitor and which identifies the given features of the display monitor.

23. The computer, as set forth in claim 21, wherein the EDID file identifies a plurality of compatible monitors.

24. The computer, as set forth in claim 21, wherein the EDID file identifies the given features using feature flags.

25. The computer, as set forth in claim 22, wherein the display monitor and the processing unit are disposed in an integral housing.

26. The computer, as set forth in claim 22, wherein the display monitor and the processing unit are disposed in separate housings.

27. An apparatus comprising:

a tangible computer-readable medium storing a list of supported monitors and storing a program which configures a processing unit to operate with a compatible monitor in response to the list of supported monitors containing the compatible monitor contained in an Extended Display Identification Data (EDID) file and which configures the processing unit to operate with a monitor having the given features in response to the list of supported monitors not containing a compatible monitor contained in the EDID file.

28. A method of configuring a device to operate with a monitor, the method comprising the acts of:

(a) storing a file in the monitor;

(b) storing in the file information identifying the monitor;

(c) storing in the file information relating to a type of monitor which is compatible with the identified monitor;

(d) storing in the file information relating to features of the identified monitor;

(e) downloading the file into the device;

(f) comparing the file information identifying the monitor with a list of supported monitors;

(g) configuring the device to operate with the identified monitor in response to the information identifying the monitor being contained in the list;

(h) comparing the file information relating to the compatible monitor with the list of supported monitors;

(i) configuring the device to operate with the compatible monitor in response to the information relating to the compatible monitor being contained in the list; and

(j) configuring the device to operate with a monitor having the features of the identified monitor in response to the information relating to the compatible monitor not being contained in the list.

29. The method, as set forth in claim 28, wherein act (a) comprises the act of storing an Extended Display Identification Data file in the monitor.

30. The method, as set forth in claim 28, wherein act (c) comprises the act of storing in the file information relating to a plurality of types of monitors which are compatible with the identified monitor.

31. The method, as set forth in claim 28, wherein act (d) comprises the act of storing the file information relating to the features of the identified monitor in the form of flags.

32. The method, as set forth in claim 28, wherein the acts are performed in the recited order.

33. A method of improving compatibility of a monitor, the method comprising the acts of:

(a) storing a file in the monitor;

(b) storing in the file information identifying the monitor;

(c) storing in the file information relating to a type of monitor which is compatible with the identified monitor; and

(d) storing in the file information relating to features of the identified monitor.

34. The method, as set forth in claim 33, wherein act (a) comprises the act of storing an Extended Display Identification Data file in the monitor.

35. The method, as set forth in claim 33, wherein act (c) comprises the act of storing in the file information relating to a plurality of types of monitors which are compatible with the identified monitor.

36. The method, as set forth in claim 33, wherein act (d) comprises the act of storing the file information relating to the features of the identified monitor in the form of flags.

37. The method, as set forth in claim 33, wherein the acts are performed in the recited order.

38. A method of configuring a device to operate with a monitor, the method comprising the acts of:

(a) downloading a file from the monitor into the device, the file containing information identifying the monitor, identifying a compatible monitor, and identifying features of the monitor;

(b) comparing the information identifying the monitor with a list of supported monitors;

(c) configuring the device to operate with the identified monitor in response to the information identifying the monitor being contained in the list;

(d) comparing the information identifying the compatible monitor with the list of supported monitors;

(e) configuring the device to operate with the compatible monitor in response to the information identifying the compatible monitor being contained in the list; and

(f) configuring the device to operate with a monitor having the identified features in response to the information identifying the compatible monitor not being contained in the list.

39. A method of manufacturing a device, the method comprising the acts of:

(a) providing a monitor having a file which stores information identifying the monitor, information relating to a type of monitor which is compatible with the identified monitor, and information relating to features of the identified monitor; and

(b) providing a processing unit which (1) downloads the file, (2) compares the information identifying the monitor with a list of supported monitors and configures the device to operate with the identified monitor in response to the information identifying the monitor being contained in the list, (3) compares the file information relating to the compatible monitor with the list of supported monitors and configures the device to operate with the compatible monitor in response to the information relating to the compatible monitor being contained in the list, and (4) configures the device to operate with a monitor having the features of the identified monitor in response to the information relating to the compatible monitor not being contained in the list.