System and method for multimedia collaborative conferencing

• US 6,532,218 B1
• Filed: 04/05/1999
• Issued: 03/11/2003
• Est. Priority Date: 04/05/1999
• Status: Expired due to Term

• Current Assignee: Unify Inc. (Atos SE)
• Original Assignee: Siemens Information & Communication Networks, Inc. (Siemens AG)
• Inventors: Shaffer, Shmuel, Beyda, William J.
• Primary Examiner(s): Marcelo, Melvin
• Assistant Examiner(s): Ferris, Derrick W
• Application Number:
  US09/286,265
• Time in Patent Office: 1,436 Days
• Field of Search: 709/204, 709/213, 370/260, 348/14.04, 725/82, 725/114, 725/115, 725/116, 725/117
• US Class Current: 370/260
• CPC Class Codes: H04L 12/1822 Conducting the conference, e.g. admission, detection, selection or grouping of participants, correlating users to one or more conference sessions, prioritising transmission
• CPC Class Codes: H04N 7/15 Conference systems

Abstract

A conferencing server (22) and methods for use with a videoconferencing system (20) for multimedia collaborative conferencing. The conferencing server (22) includes at least two data ports (69) and at least two video graphics input ports (67), each pair of data and video graphics input ports for connecting to one of at least two computers (72) belonging to a participant located in a local videoconference room. The conferencing server (22) also includes a single video graphics output port (77) for connecting to a local input port (40) of the videoconferencing system (22). The conferencing server (22) includes a control unit (50) that is selectively programmed to couple a first of the at least two video graphics input ports (67) to the video graphics output port (77) for allowing the transfer of information from the computer connected to the first of the at least two video graphics input ports to the videoconferencing system (20). In specific embodiments, the video graphics input and output ports are SVGA input and output ports.

Claims

1. A conferencing server for routing video signals from a plurality of computers to a video conferencing system, comprising:

a plurality of data ports for providing a data connection with the plurality of computers;

a plurality of video input ports for receiving video signals from the plurality of computers;

a single active video output port that provides video signals from a presenting computer to a video input of the video conferencing system;

a memory at stores video signals received from the presenting computer; and

a processor programmed to receive a request from a request computer other than the presenting computer to cease providing video signals from the presenting computer to the single active video output port and to begin providing video signals from the requesting computer to the single active video output port.

2. The conferencing system of claim 1, wherein the processor is programmed to allow the requesting computer to retrieve a stored display from the memory of the conferencing server and to alter the stored display prior to the display being provided by the requesting computer to the single active video output port.

3. The conferencing computer of claim 1, wherein the processor is programmed to receive a signal from the requesting computer to again supply video signals received from the presenting computer to the single active video output port.