Floor control in multi-point conference systems

• US 8,269,817 B2
• Filed: 07/16/2008
• Issued: 09/18/2012
• Est. Priority Date: 07/16/2008
• Status: Active Grant

• Current Assignee: Cisco Technology, Inc. (Cisco Systems, Inc.)
• Original Assignee: Cisco Technology, Inc. (Cisco Systems, Inc.)
• Inventors: Kumar, Sanjeev, Shaffer, Shmuel, Patel, Labhesh, Jain, Mukul
• Primary Examiner(s): Kuntz, Curtis
• Assistant Examiner(s): ROBINSON, RYAN C
• Application Number:
  US12/174,145
• Publication Number:
  US 20100013905A1
• Time in Patent Office: 1,525 Days
• Field of Search: 348 E7083- E7084, 348 1407- 1411
• US Class Current: 348/14.11
• CPC Class Codes: H04N 7/15 Conference systems

Abstract

In one embodiment, a conference with multiple end points is provided. At the locations, multiple screens may be configured to display video from a portion of the multiple end points. Video from multiple locations is output onto the multiple screens, such as video streams from N different segments are output on N different screens. The video output may be determined based on a first dimension of the floor control algorithm. A push-to-talk input may then be received from a button. A video segment associated with the push-to-talk button is then determined and the video segment is output on one of the multiple screens in response to receiving the push-to-talk input. The push-to-talk input may be used by users that cannot actively participate in the first dimension of the floor control algorithm. For example, users using sign language cannot speak louder and thus by using the push to talk button or hand gestures can indicate their desire to be switched in as one of the displayed segments.

Claims

1. A method comprising:

providing a conference with multiple locations;

receiving a plurality of video segments from the multiple locations, wherein a particular location can send more than one video segment, and wherein the particular location includes a plurality of displays showing video from a portion of the multiple locations;

receiving a push to talk (PTT) input from a PTT button;

determining a PTT video segment associated with the push to talk input;

switching the PTT video segment in with one or more video segments; and

displaying the PTT video segment with the one or more video segments on a selected one of the plurality of displays.

2. The method of claim 1, further comprising causing rendering of the PTT video segment on a first display screen.

3. The method of claim 2, wherein the first display screen is a dedicated screen for displaying PTT video segments in which the push to talk input has been received.

4. The method of claim 1, further comprising:

determining the plurality of video segments using a first dimension of a floor control algorithm; and

replacing a video segment in the plurality of video segments with the PTT video segment when the push to talk input is received.

5. The method of claim 4, wherein the first dimension of the floor control algorithm comprises an N loudest speaker algorithm, wherein the plurality of video segments are determined as the N loudest video segments.

6. The method of claim 4, wherein the floor control algorithm incorporates receiving input from the PTT button, wherein the PTT video segment and the one or more video segments are determined partially based on receiving input from a pressing of the PTT button.

7. The method of claim 1, further comprising:

receiving multiple push to talk requests;

determining a virtual loudness based on the multiple push to talk requests;

mapping the virtual loudness to a real loudness for the plurality of video segments from the multiple locations;

switching in the PTT video segment based on the virtual loudness and the real loudness.

8. The method of claim 7, wherein the PTT video segment is switched in by replacing a removed video segment if the PTT video segment has a higher virtual loudness than the removed video segment.

9. The method of claim 7, wherein the virtual loudness is determined based on detected gestures in the plurality of video segments.

10. The method of claim 1, further comprising:

storing the push to talk request in a queue, and

retrieving the push to talk request from the queue for switching in.

11. An apparatus comprising:

one or more processors; and

logic encoded in one or more tangible media for execution by the one or more processors and when executed operable to;

provide a conference with multiple locations;

receive a plurality of video segments from the multiple locations, wherein a particular location can send more than one video segment, and wherein the particular location includes a plurality of displays showing video from a portion of the multiple locations;

receive a push to talk (PTT) input from a PTT button;

determine a PTT video segment associated with the push to talk input; and

switch the PTT video segment in with one or more video segments; and

display the PTT video segment with the one or more video segments on a selected one of the plurality of displays.

12. The apparatus of claim 11, wherein the logic when executed is further operable to cause rendering of the PTT video segment on a first display screen.

13. The apparatus of claim 12, wherein the first display screen is a dedicated screen for displaying PTT video segments in which the push to talk input has been received.

14. The apparatus of claim 11, wherein the logic when executed is further operable to:

determine the plurality of video segments using a first dimension of a floor control algorithm; and

replace a video segment in the plurality of video segments with the PTT video segment when the push to talk input is received.

15. The apparatus of claim 14, wherein the first dimension of the floor control algorithm comprises an N loudest speaker algorithm, wherein the plurality of video segments are determined as the N loudest video segments.

16. The apparatus of claim 14, wherein the floor control algorithm incorporates receiving input from a PTT button, wherein the PTT video segment and the one or more video segments are determined partially based on receiving input from a pressing of the PTT button.

17. The apparatus of claim 11, wherein the logic when executed is further operable to:

receive multiple push to talk requests;

determine a virtual loudness based on the multiple push to talk requests;

map the virtual loudness to a real loudness for the plurality of video segments from the multiple locations;

switch in the PTT video segment based on the virtual loudness and the real loudness.

18. The apparatus of claim 17, wherein the PTT video segment is switched in by replacing a removed video segment if the PTT video segment has a higher virtual loudness than the removed video segment.

19. The apparatus of claim 17, wherein the virtual loudness is determined based on detected gestures in the plurality of video segments.

20. An apparatus comprising:

means for providing a conference with multiple locations;

means for receiving a plurality of video segments from the multiple locations, wherein a particular location can send more than one video segment, and wherein the particular location includes a plurality of displays showing video from a portion of the multiple locations;

means for receiving a push to talk (PTT) input from a PTT button;

means for determining a PTT video segment associated with the push to talk input; and

means for switching the PTT video segment in with one or more video segments; and

means for displaying the PTT video segment with the one or more video segments on a selected one of the plurality of displays.