Devices for monitoring digital video signals and associated methods and systems

• US 20050015480A1
• Filed: 05/05/2003
• Published: 01/20/2005
• Est. Priority Date: 05/05/2003
• Status: Abandoned Application

• Current Assignee: Silicon Graphics Incorporated (Graphics Properties Holdings, Inc.)
• Original Assignee: Silicon Graphics Incorporated (Graphics Properties Holdings, Inc.)
• Inventors: Foran, James L.
• Application Number:
  US10/429,257
• Publication Number:
  US 20050015480A1
• Time in Patent Office: Days
• US Class Current: 709/224
• 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: G08B 13/19634 Electrical details of the system, e.g. component blocks for carrying out specific functions
• CPC Class Codes: G08B 13/19667 Details realated to data compression, encryption or encoding, e.g. resolution modes for reducing data volume to lower transmission bandwidth or memory requirements
• CPC Class Codes: G08B 13/19682 Graphic User Interface [GUI] presenting system data to the user, e.g. information on a screen helping a user interacting with an alarm system
• CPC Class Codes: G08B 13/19693 using multiple video sources viewed on a single or compound screen
• 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
• CPC Class Codes: H04L 67/131 Protocols for games, networked simulations or virtual reality
• CPC Class Codes: H04L 9/40 Network security protocols
• CPC Class Codes: H04N 7/181 for receiving images from a plurality of remote sources

Abstract

Data related to information displayed on a local display unit is formed into a data transfer protocol format (e.g., Internet Protocol (IP)). Typically, the data is captured before it is formed into the data transfer protocol format. The formed data is transmitted through a network. The transmitted data is received at a remote computer station. The received data is converted to a visual display (pixel) format (e.g., Digital Visual Interface (DVI)). Typically, the converted data is stored in a frame buffer of the remote computer station. The converted data is displayed on a remote display unit of the remote computer station.

Claims

1. A method for monitoring information displayed on a local display unit at a remote computer station, comprising the steps of:

(1) forming data related to the information displayed on the local display unit into a data transfer protocol format;

(2) transmitting said formed data through a network;

(3) receiving said transmitted data at the remote computer station;

(4) converting said received data to a visual display format; and

(5) displaying said converted data on a remote display unit of the remote computer station, thereby monitoring information displayed on the local display unit at the remote computer station.

2. The method of claim 1, further comprising, before said step (1), the step of:

(6) capturing the data related to the information displayed on the local display unit.

3. The method of claim 2, wherein said captured information is in a second visual display format.

4. The method of claim 3, wherein the second visual display format is a Digital Visual Interface Transition Minimized Differential Signaling format.

5. The method of claim 1, wherein the visual display format is a Digital Visual Interface Transition Minimized Differential Signaling format, and said step (4) comprises the step of:

converting said received data to the Digital Visual Interface Transition Minimized Differential Signaling format.

6. The method of claim 1, further comprising, the steps of:

(6) before said step (1), compressing the data related to the information displayed on the local display unit; and

(7) after said step (4), decompressing said converted data at the remote computer station.

7. The method of claim 1, further comprising, the steps of:

(6) before said step (1), encrypting the data related to the information displayed on the local display unit; and

(7) after said step (4), decrypting said converted data at the remote computer station.

8. The method of claim 1, further comprising, before said step (1), the step of:

(6) responding to a signal from the remote computer station.

9. The method of claim 8, further comprising the step of:

(7) preventing transmission of said formed data through the network.

10. The method of claim 1, further comprising, before said step (5), the step of:

(6) storing said converted data in a frame buffer of the remote computer station.

11. The method of claim 1, wherein the local display unit is one of a plurality of local display units, and further comprising the step of:

(6) repeating said step (1) through said step (2) for at least one other of the plurality of local display units.

12. The method of claim 11, wherein said step (5) comprises the step of:

displaying said converted data of at least one of the plurality of local display units on the remote display unit of the remote computer station, thereby monitoring information displayed on at least one of the plurality of local display units at the remote computer station.

13. The method of claim 12, further comprising the step of:

(7) selecting at least one of the plurality of local display units to display.

14. The method of claim 12, further comprising the step of:

(7) tiling a screen of the remote display unit into a plurality of tile portions, wherein a tile portion of the plurality of tile portions can display one of the plurality of local display units.

15. The method of claim 1, wherein the remote computer station is one of a plurality of remote computer stations, and further comprising the step of:

(6) repeating said step (3) through said step (5) at at least one other of the plurality of remote computer stations.

16. The method of claim 15, wherein said step (5) comprises the step of:

displaying said converted data on the remote display unit of at least one of the plurality of remote computer stations, thereby monitoring information displayed on the local display unit at at least one of the plurality of remote computer stations.

17. The method of claim 16, further comprising the step of:

(7) selecting at least one of the plurality of remote computer stations.

18. A system for monitoring information displayed on a local display unit at a remote computer station, comprising:

a network; and

a device connected to said network;

wherein;

said device forms data related to the information displayed on the local display unit into a data transfer protocol format, and transmits said formed data through said network;

said network conveys said formed data; and

the remote computer station receives said formed data, converts said formed data to a visual display format, and displays said converted data on a remote display unit of the remote computer station.

19. The system of claim 18, wherein said device captures said data related to the information displayed on the local display unit.

20. The system of claim 18, wherein said device compresses said data related to the information displayed on the local display unit.

21. The system of claim 18, wherein said device encrypts said data related to the information displayed on the local display unit.

22. The system of claim 18, wherein said device responds to a signal from the remote computer station.

23. The system of claim 22, wherein said device prevents transmission of said formed data through said network.

24. The system of claim 18, wherein the remote computer station stores said converted data in a frame buffer.

25. The system of claim 18, wherein the remote computer station decrypts said converted data.

26. The system of claim 18, wherein the remote computer station decompresses said converted data.

27. The system of claim 18, wherein the local display unit is a component of a local computer station.

28. The system of claim 18, wherein the local display unit is a digital camera.

29. The system of claim 28, wherein said digital camera is a digital video camera.

30. The system of claim 18, wherein the local display unit is an endoscope.

31. The system of claim 18, wherein said device comprises a computer usable medium having computer readable program code means embodied in said computer usable medium for causing an application program to execute on a controller.

32. The system of claim 18, wherein said device comprises an interface card.

33. The system of claim 18, wherein said device comprises a connector.

34. A computer program product for enabling monitoring of information displayed on a local display unit at a remote computer station, said computer program product comprising:

a computer usable medium having computer readable program code means embodied in said computer usable medium for causing an application program to execute on a controller that controls the local display unit, said computer readable program code means comprising;

a computer readable first program code means for causing said controller to form data related to the information displayed on the local display unit into a data transfer protocol format; and

a computer readable second program code means for causing said controller to transmit said formed data through a network to the remote computer station.

35. The computer program product of claim 34, wherein said computer usable medium further comprises:

a computer readable third program code means for causing said controller to capture said data related to the information displayed on the local display unit.

36. The computer program product of claim 34, wherein said computer usable medium further comprises:

a computer readable third program code means for causing said controller to compress said data related to the information displayed on the local display unit.

37. The computer program product of claim 34, wherein said computer usable medium further comprises:

a computer readable third program code means for causing said controller to encrypt said data related to the information displayed on the local display unit.

38. The computer program product of claim 34, wherein said computer usable medium further comprises:

a computer readable third program code means for causing said controller to respond to a signal from the remote computer station.

39. The computer program product of claim 38, wherein said computer usable medium further comprises:

a computer readable fourth program code means for causing said controller to prevent transmission of said formed data through said network.

40. An interface card for enabling monitoring of information displayed on a local display unit at a remote computer station, comprising:

an integrated circuit, said integrated circuit comprising;

a first logic circuit for forming data related to the information displayed on the local display unit into a data transfer protocol format; and

a second logic circuit for transmitting said formed data through a network to the remote computer station.

41. The interface card of claim 40, wherein said integrated circuit further comprises:

a third logic circuit for capturing said data related to the information displayed on the local display unit.

42. The interface card of claim 40, wherein said integrated circuit further comprises:

a third logic circuit for compressing said data related to the information displayed on the local display unit.

43. The interface card of claim 40, wherein said integrated circuit further comprises:

a third logic circuit for encrypting said data related to the information displayed on the local display unit.

44. The interface card of claim 40, wherein said integrated circuit further comprises:

a third logic circuit for responding to a signal from the remote computer station.

45. The interface card of claim 44, wherein said integrated circuit further comprises:

a fourth logic circuit preventing transmission of said formed data through said network.

46. The interface card of claim 40, wherein said integrated circuit comprises an application specific integrated circuit.

47. The interface card of claim 40, wherein said integrated circuit comprises a field programmable gate array.

48. A connector for enabling monitoring of information displayed on a local display unit at a remote computer station, comprising:

a port for connecting the connector to a network;

an inductive signal clamp for connecting to a visual display link of the local display unit; and

an integrated circuit, said integrated circuit comprising;

a first logic circuit for capturing data related to the information displayed on the local display unit;

a second logic circuit for forming said captured data into a data transfer protocol format;

a third logic circuit for interfacing between said second logic circuit and said network; and

a fourth logic circuit for transmitting said formed data through said network to the remote computer station.

49. The connector of claim 48, wherein said integrated circuit further comprises:

a fifth logic circuit for compressing said data related to the information displayed on the local display unit.

50. The connector of claim 48, wherein said integrated circuit further comprises:

a fifth logic circuit for encrypting said data related to the information displayed on the local display unit.

51. The connector of claim 48, wherein said integrated circuit further comprises:

a fifth logic circuit for responding to a signal from the remote computer station.

52. The connector of claim 51, wherein said integrated circuit further comprises:

a sixth logic circuit for preventing transmission of said formed data through said network.

53. The connector of claim 48, wherein said integrated circuit comprises an application specific integrated circuit.

54. The connector of claim 48, wherein said integrated circuit comprises a field programmable gate array.

55. A connector for enabling monitoring of information displayed on a local display unit at a remote computer station, comprising:

a first port for connecting the connector to a network;

a second port for connecting the connector to the local display unit; and

an integrated circuit, said integrated circuit comprising;

a first logic circuit for forming data related to the information displayed on the local display unit into a data transfer protocol format;

a second logic circuit for interfacing between said first logic circuit and said network; and

a third logic circuit for transmitting said formed data through said network to the remote computer station.

56. The connector of claim 55, wherein said integrated circuit further comprises:

a fourth logic circuit for capturing said data related to the information displayed on the local display unit.

57. The connector of claim 55, further comprising:

a third port for connecting the connector to a local computer station.

58. The connector of claim 55, wherein the connector is a Digital Video Interface connector.

59. The connector of claim 55, wherein said integrated circuit further comprises:

a fourth logic circuit for compressing said data related to the information displayed on the local display unit.

60. The connector of claim 55, wherein said integrated circuit further comprises:

a fourth logic circuit for encrypting said data related to the information displayed on the local display unit.

61. The connector of claim 55, wherein said integrated circuit further comprises:

a fourth logic circuit for responding to a signal from the remote computer station.

62. The connector of claim 55, wherein said integrated circuit further comprises:

a fifth logic circuit for preventing transmission of said formed data through said network.

63. The connector of claim 55, wherein said integrated circuit comprises an application specific integrated circuit.

64. The connector of claim 55, wherein said integrated circuit comprises a field programmable gate array.