Multi-user control system for multi media sources

• US 20030197789A1
• Filed: 04/23/2002
• Published: 10/23/2003
• Est. Priority Date: 04/23/2002
• Status: Abandoned Application

• Current Assignee: Lawrence Livermore National Security LLC (Government of the United States of America)
• Original Assignee: Regents of the University of California (University of California)
• Inventors: Coffland, Douglas R.
• Application Number:
  US10/131,550
• Publication Number:
  US 20030197789A1
• Time in Patent Office: Days
• US Class Current: 348/211.3
• CPC Class Codes: H04N 23/66 Remote control of cameras or camera parts, e.g. by remote control devices
• CPC Class Codes: H04N 7/183 for receiving images from a single remote source

Abstract

A multi-user control system for multi-media sources. The system includes a module for connection initialization. A first software loop is performs main control functions including initializing a network, loading configurable features, and starting subsequent software control loops for single user control that execute in separate threads. Subsequent software loops perform single user control functions including executing associated features.

Claims

1. A multi-user control system for multi-media sources, comprising the steps of:

providing a first software loop that performs main control functions including initializing a network, loading configurable features, and starting subsequent software control loops for single user control that execute in separate threads,

providing subsequent software loops that perform single user control functions including executing associated features, and

providing a system for connection initialization.

2. The multi-user control system for multi-media sources of claim 1, wherein said first software loop establishes additional connections and starts additional software control loops for single user control that execute in separate threads.

3. The multi-user control system for multi-media sources of claim 1, wherein said first software loop starts network services, calls a “

StartCapture”

feature to start capturing video frames, creates a MulticastSession object that will be used for secure transmission of multicast video, creates a data key in preparation for a request to receive video, establishes a multicast session for the transmission of secure multicast video, and enters a loop and waits for connection requests.

4. The multi-user control system for multi-media sources of claim 1, wherein said subsequent software loops establish secure communications with at least one remote host, accept command requests from said remote host, execute associated features, and create a new video data key when exiting if no other of said hosts are still connected.

5. The multi-user control system for multi-media sources of claim 4, wherein said subsequent software loops establish secure communications with each said remote host, accept command requests from each said remote host, execute said associated features, and create a new video data key when exiting if no other said host is still connected.

6. The multi-user control system for multi-media sources of claim 1, wherein said system for connection initialization performs the following steps:

creates a new secure socket that is to be used for the control session with a connecting host, creates subsequent software control loops in separate threads for handling all further communications with said connecting host, and waits for another connection request.

7. A video surveillance system having a video camera/computer system that includes a multi-user control system for multi-media sources and a digital network, comprising the steps of:

providing a first software loop in said video camera/computer system that performs main control functions including initializing said digital network loading configurable features, and creating subsequent software control loops,

providing a subsequent software loops in said video camera/computer system that performs single user control functions including executing associated features, and

providing a system for connection initialization.

8. The video surveillance system having a video camera/computer system that includes a multi-user control system for multi-media sources and a digital network of claim 7, wherein said first software loop establishes connections and spawns new threads to server connections.

9. The video surveillance system having a video camera/computer system that includes a multi-user control system for multi-media sources and a digital network of claim 7, wherein said first software loop starts network services, calls the “

StartCapture”

feature to start capturing video frames, creates a MulticastSession object that will be used for secure transmission of multicast video, creates a data key in preparation for a request to receive video, establishes a multicast session for the transmission of secure multicast video, and enters a loop and waits for connection requests.

10. The video surveillance system having a video camera/computer system that includes a multi-user control system for multi-media sources and a digital network of claim 7, wherein said subsequent software loops establish secure communications with at least one remote host, accept command requests from said remote host, execute associated features, and create a new video data key when exiting if no other of said hosts are still connected.

11. The video surveillance system having a video camera/computer system that includes a multi-user control system for multi-media sources and a digital network of claim 10, wherein said subsequent software control loops establish secure communications with each said remote host, accept command requests from each said remote host, execute said associated features, and create a new video data key when exiting, if no other said host is still connected.

12. The video surveillance system having a video camera/computer system that includes a multi-user control system for multi-media sources and a digital network of claim 7, wherein said system for connection initialization performs the following steps:

a new secure socket that is to be used for the control session with a connecting host is created, a new thread is created to handle all further communications with said connecting host, wait for another connection request, and create subsequent software control loops to serve new connection requests.

13. A video surveillance system having a video camera/computer system that includes a multi-user control system for multi-media sources, a digital network, and at least one remote viewer workstation, comprising:

first software loop means in said video camera/computer system for performing main control functions including initializing said digital network, loading configurable features, and starting subsequent software control loops for single user control that execute in separate threads,

subsequent software loop means in said video camera/computer system for performing single user control functions including executing associated features, and

means for connection initialization.

14. The video surveillance system having a video camera/computer system that includes a multi-user control system for multi-media sources, a digital network, and at least one remote viewer workstation of claim 13, wherein said first software loop means establishes additional connections and starts additional software control loops for single user control that execute in separate threads.

15. The video surveillance system having a video camera/computer system that includes a multi-user control system for multi-media sources, a digital network, and at least one remote viewer workstation of claim 14, wherein said first software loop means starts network services, calls a “

StartCapture”

feature to start said video camera/computer system capturing video frames, creates a MulticastSession object that will be used for secure transmission of multicast video to said remote viewer workstation, creates a data key in preparation for a request to receive video, establishes a multicast session for the transmission of secure multicast video to said remote viewer workstation, and enters a loop and waits for connection requests.

16. The video surveillance system having a video camera/computer system that includes a multi-user control system for multi-media sources, a digital network, and at least one remote viewer workstation of claim 13, wherein said subsequent software control loops establish secure communications with at least one remote host, accept command requests from said remote host, execute associated features, and create a new video data key when exiting if no other of said hosts are still connected.

17. The video surveillance system having a video camera/computer system that includes a multi-user control system for multi-media sources, a digital network, and at least one remote viewer workstation of claim 16, wherein said subsequent software control loops establish secure communications with each said remote host, accept command requests from each said remote host, execute said associated features, and create a new video data key when exiting if no other said host is still connected.

18. The video surveillance system having a video camera/computer system that includes a multi-user control system for multi-media sources, a digital network, and at least one remote viewer workstation of claim 13, wherein said means for connection initialization performs the following steps:

a new secure socket that is to be used for the control session with a connecting host, a new thread is created to handle all further communications with said connecting host, and wait for another connection request.