Method for Host Preview During a Remote Desktop Session

• US 20130262560A1
• Filed: 03/29/2012
• Published: 10/03/2013
• Est. Priority Date: 12/21/2011
• Status: Active Grant

• Current Assignee: Seiko Epson Corporation (Seiko Group)
• Original Assignee: Seiko Epson Corporation (Seiko Group)
• Inventors: Ivashin, Victor, Nelson, Steve
• Granted Patent: US 9,210,212 B2
• Time in Patent Office: Days
• US Class Current: 709/203
• 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: G06F 9/452 Remote windowing, e.g. X-Window System, desktop virtualisation protocols for virtual reality H04L67/131
• CPC Class Codes: H04L 67/08 specially adapted for terminal emulation, e.g. Telnet
• CPC Class Codes: H04L 67/12 specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
• CPC Class Codes: H04L 67/146 Markers for unambiguous identification of a particular session, e.g. session cookie or URL-encoding

Abstract

Updated image views of an actively changing desktop, in a remote desktop session being shared by a Remote Desktop terminal server, are displayed on the host'"'"'s logon screen. Specifically, a Microsoft Window'"'"'s based computer (host), which is communicating with a network projector (client) through a remote desktop connection, provides continually updating image views of the desktop being hosted in a remote desktop session onto the host screen such that a user locally positioned near the host may preview the desktop content being provide to, and output by, the remote projector.

Claims

1. A method for displaying a hosted desktop in a remote desktop session between a client projector and a host computer, the client projector and the host computer being connected by a network, comprising:

establishing a remote desktop session between the client projector and the host computer;

in the client projector, using a processor to

receive a view of a hosted desktop of the host computer across the network;

in the host computer, using a processor to

send the view of the hosted desktop of the host computer across the network to the client projector;

detect the remote desktop session;

capture a screen of the hosted desktop; and

display the captured screen of the hosted desktop on a logon screen of a host computer display.

2. The method as in claim 1, wherein detecting the remote desktop session comprises detecting an active session and obtaining an active console session identification and an active host session identification.

3. The method as in claim 2, wherein detecting the remote desktop session further comprises searching for a process matching a name of a logon application and, if a process is found, comparing a session identification of the process to the active console session identification.

4. The method as in claim 2, wherein detecting the remote desktop session further comprises searching for a process matching the name of a client-server runtime system that manages processes in a logon session and, if a process is found, comparing a session identification of the process to the active host session identification.

5. The method as in claim 1 wherein displaying the captured screen comprises providing a graphical user interface (GUI) with a preview window available on the logon screen of the host computer display.

6. The method as in claim 1 further comprising transferring captured screen data to a global shared memory mapped file.

7. The method as in claim 6 further comprising updating a preview window by checking for updated display data in the global shared memory mapped file.

8. The method as in claim 1 further comprising transferring captured screen data using a named pipe.

9. The method as in claim 1 wherein capturing and display reoccur periodically.

10. A device for displaying a hosted desktop in a remote desktop session between a client projector and a host computer, the client projector and the host computer being connected by a network, and wherein a remote desktop session between the client projector and the host computer is established in which the client projector receives a view of a hosted desktop of the host computer across the network, comprising:

a processor that;

detects the remote desktop session; and

captures a screen of the hosted desktop; and

a display that displays the captured screen of the hosted desktop on a logon screen.

11. The device as in claim 10, wherein the processor detects the remote desktop session by detecting an active session and obtaining an active console session identification and an active host session identification.

12. The device as in claim 11, wherein the processor detects the remote desktop session by searching for a process matching a name of a logon application and, if a process is found, comparing a session identification of the process to the active console session identification.

13. The device as in claim 11, wherein the processor detects the remote desktop session by searching for a process matching the name of a client-server runtime system that manages processes in a logon session and, if a process is found, comparing a session identification of the process to the active host session identification.

14. The device as in claim 10 further comprising a graphical user interface (GUI) with a preview window available on the logon screen of the display.

15. The device as in claim 10 further comprising a global shared memory mapped file used for transferring captured screen to the display.

16. One or more tangible, non-transitory computer-readable media embodying instructions executable by a compute to perform a method for displaying a hosted desktop in a remote desktop session between a client projector and a host computer, the client projector and the host computer being connected by a network, the method comprising:

establishing a remote desktop session between the client projector and the host computer;

in the client projector, using a processor to

receive a view of a hosted desktop of the host computer across the network;

in the host computer, using a processor to

send the view of the hosted desktop of the host computer across the network to the client projector;

detect the remote desktop session;

capture a screen of the hosted desktop; and

display the captured screen of the hosted desktop on a logon screen of a host computer display.

17. The one or more tangible, non-transitory computer-readable media as in claim 16, wherein detecting the remote desktop session comprises detecting an active session and obtaining an active console session identification and an active host session identification.

18. The one or more tangible, non-transitory computer-readable media as in claim 17, wherein detecting the remote desktop session further comprises searching for a process matching a name of a logon application and, if a process is found, comparing a session identification of the process to the active console session identification.

19. The one or more tangible, non-transitory computer-readable media as in claim 17, wherein detecting the remote desktop session further comprises searching for a process matching the name of a client-server runtime system that manages processes in a logon session and, if a process is found, comparing a session identification of the process to the active host session identification.

20. The one or more tangible, non-transitory computer-readable media as in claim 16, wherein displaying the captured screen comprises providing a graphical user interface (GUI) with a preview window available on the logon screen of the host computer display.