CONTROLLING PLAYBACK OF RECORDED MEDIA IN A PUSH-TO-TALK COMMUNICATION ENVIRONMENT

• US 20080114600A1
• Filed: 11/10/2006
• Published: 05/15/2008
• Est. Priority Date: 11/10/2006
• Status: Active Grant

• Current Assignee: Cisco Technology, Inc. (Cisco Systems, Inc.)
• Original Assignee: Cisco Technology, Inc. (Cisco Systems, Inc.)
• Inventors: Christenson, Steven L., Shaffer, Shmuel
• Granted Patent: US 7,764,973 B2
• Time in Patent Office: Days
• US Class Current: 704/270
• CPC Class Codes: G10L 21/04 Time compression or expansion

Abstract

In one embodiment a method is provided which comprises recording a push-to-talk communication session comprising media segments, each media segment being associated with an endpoint device from which the media segment originated. A playback request for playback of at least one recorded media segment at an adjusted playback speed may be received and, in response to the playback request, a playback speed of the at least one recorded media segment may be adjusted relative to another recorded media segment. The recorded media including the segment with the adjusted playback speed may then be provided at a requesting endpoint device.

Claims

1. A method comprising:

recording a push-to-talk communication session comprising media segments, each media segment being associated with an endpoint device from which the media segment originated;

receiving a playback request for playback of at least one recorded media segment at an adjusted playback speed;

in response to the playback request, adjusting a playback speed of the at least one recorded media segment relative to another recorded media segment; and

providing recorded media including the media segment with the adjusted playback speed to or at a requesting endpoint device.

2. The method of claim 1, further comprising:

assigning a priority to recorded media segments associated with a priority endpoint device;

providing the recorded media segments with the priority at a first playback speed at the requesting endpoint device; and

providing the other recorded media segments at a second playback speed at the requesting endpoint device, the second playback speed being faster than the first playback speed.

3. The method of claim 2, wherein the first playback speed is a normal playback speed in which the media is played back at the speed at which it was originally recorded.

4. The method of claim 2, comprising assigning the priority to an endpoint in accordance with a role performed by a person using the endpoint device.

5. The method of claim 2, comprising:

receiving a communication from the requesting endpoint device that identifies the priority endpoint device; and

assigning the priority to the priority endpoint device.

6. The method of claim 2, comprising assigning the priority based on Real Time Control Protocol (RTCP) communications or on a floor control mechanism.

7. The method of claim 2, comprising:

displaying a user interface on a endpoint device that provides a user with an option to adjust the playback speed of the at least one recorded media segment; and

receiving a user input that identifies the at least one recorded media segment.

8. The method of claim 1, comprising:

recording the push-to-talk communication session at each endpoint device in a Virtual Talk Group; and

adjusting the playback speed of the at least one recorded media segment at the endpoint device.

9. The method of claim 1, comprising:

recording the push-to-talk communication session at a central server facilitating a Virtual Talk Group;

adjusting the playback speed of the at least one recorded media segment at the central server; and

communicating the recorded media including the media segment with the adjusted playback speed to the requesting endpoint device.

10. The method of claim 1, comprising:

calculating an estimated duration of playback of the recorded media before adjustment and an estimated duration of playback of the recorded media after adjustment; and

providing the estimated durations to a user of the requesting endpoint device.

11. An endpoint device comprising:

a recording module to record a push-to-talk communication session comprising media segments, each media segment being associated with an endpoint device from which the media segment originated;

an interface to receive a playback request for playback of at least one recorded media segment at an adjusted playback speed;

an adjustment module to, in response to the playback request, adjust a playback speed of the at least one recorded media segment relative to another recorded media segment; and

a playback module provide the recorded media including the segment with the adjusted playback speed at the endpoint device.

12. The endpoint device of claim 11, wherein a priority is assigned to recorded media segments associated with a priority endpoint device, the adjustment module being configured to provide the recorded media segments with the priority at a first playback speed at the endpoint device, and provide the other recorded media segments at a second playback speed at the endpoint device, the second playback speed being faster than the first playback speed.

13. The endpoint device of claim 12, wherein the first playback speed is a normal playback speed in which the media is played back at the speed at which it was originally recorded.

14. The endpoint device of claim 12, wherein the priority is assigned to an endpoint associated with role performed by a person in a virtual talk group.

15. The endpoint device of claim 12, wherein the priority is assigned based on Real Time Control Protocol (RTCP) communications or on a floor control mechanism.

16. The endpoint device of claim 12, comprising:

a display to provide a user interface that provides a user with an option to adjust the playback speed of the at last one recorded media segment; and

an input arrangement providing the interface to receive a user input that identifies the at least one recorded media segment.

17. The endpoint device of claim 11, which comprises a calculation module configured to:

calculate an estimated duration of playback of the recorded media before adjustment and an estimated duration of playback of the recorded media after adjustment; and

provide the estimated durations to the user of the endpoint device.

18. A server comprising:

a network interface to interface to a plurality of endpoints configured to participate in a push-to-talk communication session;

a recorder to record the push-to-talk communication session, the push-to-talk session comprising media segments, each media segment being associated with an endpoint device from which the media segment originated; and

one or more processors configured to;

receive a playback request for playback of at least one recorded media segment at an adjusted playback speed from a requesting endpoint device;

in response to the playback request, adjust a playback speed of the at least one recorded media segment relative to another recorded media segment; and

communicate the recorded media including the segments with the adjusted playback speed to the requesting endpoint device.

19. The server of claim 18, wherein the one or more processors are configured to:

assign a priority to recorded media segments associated with a priority endpoint device;

communicate the recorded media segments with the priority at a first playback speed to the requesting endpoint device; and

communicate the other recorded media segments at a second playback speed to the requesting endpoint device, the second playback speed being faster than the first playback speed.

20. The server of claim 19, wherein the first playback speed is a normal playback speed in which the media is played back at the speed at which it was originally recorded.

21. The server of claim 19, wherein the one or more processors are configured to assign the priority to an endpoint device in accordance with a role performed by a person using that endpoint device.

22. The server of claim 19, wherein the one or more processors are configured to:

receive a communication from the requesting endpoint device that identifies the priority endpoint device; and

assign the priority to the priority endpoint device.

23. The server of claim 19, wherein the one or more processors are configured to assign the priority based on Real Time Control Protocol (RTCP) communications or on a floor control mechanism.

24. The server of claim 18, wherein the one or more processors are configured to:

calculate an estimated duration of playback of the recorded media segment before adjustment and an estimated duration of playback of the recorded media after adjustment; and

communicate the estimated durations to the requesting endpoint device.

25. Apparatus comprising:

means for recording a push-to-talk communication session comprising media segments, each media segment being associated with an endpoint device from which the media segment originated;

means for receiving a playback request for playback of at least one recorded media segment at an adjusted playback speed;

means for adjusting a playback speed of the at least one recorded media segment relative to another recorded media segment in response to the playback request; and

means for providing the recorded media including the segments with the adjusted playback speed to or at a requesting endpoint device.