System and method for volume indication during a communication session

• US 7,535,995 B1
• Filed: 01/29/2002
• Issued: 05/19/2009
• Est. Priority Date: 01/29/2002
• Status: Active Grant

• Current Assignee: Cisco Technology, Inc. (Cisco Systems, Inc.)
• Original Assignee: Cisco Technology, Inc. (Cisco Systems, Inc.)
• Inventors: Firestone, Scott
• Primary Examiner(s): Gauthier; Gerald
• Application Number:
  US10/059,675
• Time in Patent Office: 2,667 Days
• Field of Search: 370/248, 370/267, 370/349, 709/204, 709/231, 379/15.05, 379/80, 375/259, 700/24, 705/14
• US Class Current: 379/80
• CPC Class Codes: G06Q 30/0247 Calculate past, present or future revenues
• CPC Class Codes: H04M 1/2535 adapted for voice communication over an Internet Protocol [IP] network Voice over Internet Protocol (VoIP) network equipment and services H04M7/006; implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP] H04L69/16
• CPC Class Codes: H04M 1/60 including speech amplifiers
• CPC Class Codes: H04N 2007/145 Handheld terminals
• CPC Class Codes: H04N 7/147 Communication arrangements, e.g. identifying the communication as a video-communication, intermediate storage of the signals selecting H04Q

Abstract

A method for volume indication during a communication session includes detecting analog audio at a telephony device. First communication packets are transmitted from the telephony device indicating that the analog audio is being received. The analog audio is encoded to a digital audio stream and second communication packets comprising the digital audio stream are transmitted from the telephony device. In accordance with a particular embodiment, the first communication packets indicate an approximate volume level of the analog audio. The method may also include receiving, at the telephony device, analog video. The analog video is converted to a digital video stream. The digital video stream may be transmitted from the telephony device.

Claims

1. A method for audio indication during a communication session, comprising:

detecting analog audio at a telephony device;

transmitting first communication packets from the telephony device indicating that the analog audio is being received;

encoding the analog audio to a digital audio stream; and

transmitting, from the telephony device, second communication packets comprising the digital audio stream.

2. The method of claim 1, wherein the first communication packets indicate an approximate volume level of the analog audio.

3. The method of claim 1, further comprising:

receiving, at the telephony device, analog video;

converting the analog video to a digital video stream; and

transmitting, from the telephony device, the digital video stream.

4. The method of claim 3, further comprising:

synchronizing the digital audio stream and the digital video stream; and

wherein the digital video stream is transmitted using third communication packets.

5. The method of claim 4 further comprising buffering the digital audio stream.

6. The method of claim 1, wherein:

transmitting the first communication packets comprises transmitting the first communication packets over a first transmission channel;

transmitting the second communication packets comprises transmitting the second communication packets over a second transmission channel; and

the first transmission channel having a generally lower average latency with respect to the second transmission channel.

7. The method of claim 6 wherein the first communication packets conform to a T.120 protocol and the second communication packets conform to an H.323 protocol.

8. The method of claim 1, wherein the first communication packets include a binary representation of a volume of the analog video.

9. The method of claim 1, wherein the first communication packets include a trinary representation of a volume of analog audio.

10. The method of claim 1, wherein the first communication packets include an analog representation of a volume of the analog audio.

11. The method of claim 6, wherein the second transmission channel passes through a multipoint control unit (MCU) and the first transmission channel does not pass through the MCU.

12. The method of claim 6, wherein the first and second communication packets are transmitted to an MCU, and the MCU gives the first communication packets a higher priority than the second communication packets.

13. The method of claim 1, wherein the first communication packets are sent redundantly.

14. The method of claim 1, wherein the first communication packets are transmitted using an unreliable protocol, and the second communication packets are transmitted using a reliable protocol.

15. The method of claim 1, wherein the first communication packets are transmitted along a first communication path and the second communication packets are transmitted along a second communication path, and wherein the first communication path is faster than the second communication path.

16. A method for volume indication during a communication session, comprising:

receiving a data stream including volume indication associated with an analog audio stream detected at a transmitting telephony device;

receiving a digital audio stream which comprises an encoded version of the analog audio stream;

displaying the volume indication at a user interface;

decoding the digital audio stream; and

playing an analog representation of the digital audio stream at the user interface.

17. The method of claim 16, further comprising:

receiving a digital video stream;

synchronizing the digital audio stream with the digital video stream; and

playing the digital video stream at the user interface.

18. The method of claim 17, further comprising buffering the digital audio stream.

19. A volume indicating telephony device, comprising:

a user interface operable to receive analog audio;

a volume detector operable to detect the analog audio;

a processor being operable to encode the analog audio into a digital audio stream;

a network interface being operable to transmit a first plurality of communication packets including an indication that the volume has been received; and

the network interface being further operable to transmit a second plurality of communication packets including the digital audio stream.

20. The telephony device of claim 19, wherein:

the user interface is further operable to receive analog video;

the processor is further operable to encode the analog video into a digital video stream; and

the network interface is further operable to transmit the digital video stream.

21. The telephony device of claim 20, wherein the processor is further operable to synchronize the digital audio stream and the digital video stream, and wherein the digital video stream is transmitted using third communication packets.

22. The telephony device of claim 21, further comprising a buffer being operable to buffer the digital audio stream.

23. A volume indicating telephony device, comprising:

a network interface operable to receive a data stream including volume indication associated with an analog audio stream detected at a transmitting telephony device;

the network interface being further operable to receive a digital audio stream which comprises an encoded version of the analog audio stream;

a user interface being operable to display the volume indication to a user;

a processor being operable to decode the digital audio stream; and

the user interface being further operable to play an analog representation of the digital audio stream to the user.

24. The telephony device of claim 23 further comprising:

the user interface being further operable to receive a digital video stream;

the processor being further operable to synchronize the digital audio stream and the digital video stream; and

the user interface being further operable to play the digital video stream at the user interface.

25. The telephony device of claim 24 further comprising a buffer being operable to buffer the digital audio stream.

26. Computer readable media encoded with logic for audio indication, the logic being operable, when executed by a computer, to perform the following steps:

detect analog audio at a telephony device;

transmit first communication packets from the telephony device indicating that the analog audio is being received;

encode the analog audio to a digital audio stream; and

transmit, from the telephony device, second communication packets comprising the digital audio stream.

27. The computer readable media encoded with logic of claim 26 wherein the logic is further operable to perform the following steps:

receive, at the telephony device, analog video;

convert the analog video to a digital video stream; and

transmit, from the telephony device, the digital video stream.

28. The computer readable media encoded with logic of claim 27 the logic being further operable to perform the following steps:

synchronize the digital audio stream and the digital video stream; and

wherein the digital video stream is transmitted using third communication packets.

29. The computer readable media encoded with logic of claim 28 wherein the logic is further operable to buffer the digital audio stream.

30. The computer readable media encoded with logic of claim 26 wherein the logic is further operable to perform the following steps:

transmit the first communication packets over a first transmission channel;

transmit the second communication packets over a second communication channel; and

the first transmission channel having a generally lower average latency with respect to the second transmission channel.

31. Computer readable media encoded with logic for volume indication during a communication session, the logic being operable, when executed by a computer, to perform the following steps:

receive a data stream including volume indication associated with an analog audio stream detected at a transmitting telephony device;

receive a digital audio stream which comprises an encoded version of the analog audio stream;

display the volume indication at a user interface;

decode the digital audio stream; and

play an analog representation of the digital audio stream at the user interface.

32. The computer readable media encoded with logic of claim 31, the logic being further operable to perform the following steps:

receive a digital video stream;

synchronize the digital audio stream and the digital video stream; and

play the digital video stream at the user interface.

33. A system for audio indication during a communication session, comprising:

means for detecting analog audio at a telephony device;

means for transmitting first communication packets from the telephony device indicating that the analog audio is being received;

means for encoding the analog audio to a digital audio stream; and

means for transmitting, from the telephony device, second communication packets comprising the digital audio stream.

34. The system of claim 33, further comprising:

means for receiving, at the telephony device, analog video;

means for converting the analog video to a digital video stream; and

means for transmitting, from the telephony device, the digital video stream.

35. The system of claim 34, further comprising:

means for synchronizing the digital audio stream and the digital video stream; and

wherein the digital video stream is transmitting using third communication packets.

36. The system of claim 33, further comprising:

means for transmitting the first communication packets over a first transmission channel;

means for transmitting the second communication packets over a second communication channel; and

the first transmission channel having a generally lower average latency with respect to the second transmission channel.

37. A system for volume indication during a communication session, comprising:

means for receiving a data stream including volume indication associated with an analog audio stream detected at a transmitting telephony device;

means for receiving a digital audio stream which comprises an encoded version of the analog audio stream;

means for displaying the volume indication at a user interface;

means for decoding the digital audio stream; and

means for playing an analog representation of the digital audio stream at the user interface.

38. The system of claim 37, further comprising:

means for receiving a digital video stream;

means for synchronizing the digital audio stream with the digital video stream; and

means for playing the digital video stream at the user interface.