Telecommunication conferencing system and method

• US 6,262,979 B1
• Filed: 12/01/1998
• Issued: 07/17/2001
• Est. Priority Date: 12/01/1998
• Status: Expired due to Term

• Current Assignee: Hewlett Packard Enterprise Development LP (Hewlett-Packard Enterprise Company)
• Original Assignee: 3Com Corporation (HP Inc.)
• Inventors: Gadda, Chris, Anderson, Pehr
• Primary Examiner(s): Vu, Huy D.
• Assistant Examiner(s): Harper, Kevin C.
• Application Number:
  US09/204,107
• Time in Patent Office: 959 Days
• Field of Search: 370/352, 370/353, 370/354, 370/355, 370/356, 370/389, 370/260, 370/261, 370/263, 370/265, 370/266, 370/432, 370/390, 370/267, 370/268, 370/269, 379/88.17
• US Class Current: 370/267
• CPC Class Codes: H04L 12/1813 for computer conferences, e.g. chat rooms instant messaging H04L51/04; protocols for multimedia communication H04L65/1101; arrangements for multi-party communication H04L65/403; telephonic conference arrangements H04M3/56; television conference systems H04N7/15
• CPC Class Codes: H04L 12/4625 Single bridge functionality, e.g. connection of two networks over a single bridge
• CPC Class Codes: H04L 12/6418 Hybrid transport
• CPC Class Codes: H04L 2012/6481 Speech, voice
• CPC Class Codes: H04Q 11/04 for time-division multiplexing H04Q11/0001 takes precedence
• CPC Class Codes: H04Q 2213/13103 Memory
• CPC Class Codes: H04Q 2213/13107 Control equipment for a part of the connection, distributed control, co-processing
• CPC Class Codes: H04Q 2213/13175 Graphical user interface [GUI], WWW interface, visual indication
• CPC Class Codes: H04Q 2213/1324 Conference call
• CPC Class Codes: H04Q 2213/13242 Broadcast, diffusion, multicast, point-to-multipoint (1 : N)
• CPC Class Codes: H04Q 2213/1325 Priority service
• CPC Class Codes: H04Q 2213/1332 Logic circuits
• CPC Class Codes: H04Q 2213/13389 LAN, internet
• CPC Class Codes: H04Q 2213/13396 Signaling in general, in-band signalling

Abstract

A telecommunication conferencing system and method are described. Three or more telephone sets connected to one of the networks can concurrently participate in a conference call. Each telephone set engaged in the conference call receives a list of participants in the call and an identifier associated with that call. Each telephone set generates voice data packets that include the identifier and forwards the generated packets to the network. In one embodiment, the telephone set generates a unicast packet for each other telephone set engaged in the conference call. In another embodiment, the packets generated by the telephone set are multi-cast packets that include the identifier associated with the conference call. Each telephone set locally produces a combination of the packets received and outputs audio signals corresponding to the voice data of the combination.

Claims

1. A telecommunication conferencing system, comprising:

a network;

at least three telecommunication devices connected to the network, each telecommunication device engaging in a concurrent telephonic communication and including;

an I/O device in electrical communication with the network for receiving and sending packets to other devices connected to the network;

an input device for producing audio signals from an input local to the telecommunication device;

a packet controller in electrical communication with the I/O device and the input device, the packet controller (a) generating packets from the audio signals received by the input device, (b) forwarding the generated packets to the I/O device for transmission to the network, and (c) combining packets received by the I/O device and the generated packets from audio signals from the input local to the telecommunication device and producing an audio signal with the combined packets.

2. The telecommunication conferencing system of claim 1 wherein the packets generated from the audio signals received by the input device are unicast packets, the packet controller generating one of the unicast packets for each of the other telecommunication devices engaged in the concurrent telephonic communication.

3. The telecommunication conferencing system of claim 1 wherein the packets generated from the audio signals received by the input device are multi-cast packets.

4. The telecommunication conferencing system of claim 1 wherein the step of combining comprises combining at least portions of packets received by at least one of the I/O device and the input device.

5. The telecommunication conferencing system of claim 1 wherein the step of combining comprises selecting at least a portion of one of the packets received by at least one of the I/O device and the input device.

6. The telecommunication conferencing system of claim 1 wherein each telecommunication device generates the combination from packets received from other telecommunication devices known by that telecommunication device to be engaged in the concurrent telephonic communication.

7. The telecommunication conferencing system of claim 1 further comprising:

a second I/O device in electrical communication with a second network and the packet controller.

8. A telecommunication conferencing system, comprising:

at least three telecommunication devices connected to a network, each telecommunication device engaging in a concurrent telephonic communication and receiving a unique identifier that is associated with the telecommunication device engaging in the concurrent telephonic communication, each telecommunication device including;

an I/O device in electrical communication with the network;

a local input device for producing audio signals signal packets;

a packet controller in electrical communication with the I/O device and the input local device, the packet controller (a) generating multi-cast packets from the audio signals received from the local input device, and (b) forwarding the generated multi-cast packets to the I/O device for transmission to the network, each generated multi-cast packet including the identifier associated with each of the telecommunication devices engaging in the concurrent telephonic communication, wherein the packet controller of each telecommunication device produces a combination of the multi-cast packets received from the other telecommunication devices engaged in the concurrent telephonic communication and the multi-cast packet generated from the audio signals received from the local input device at that telecommunication device.

9. The telecommunication conferencing system of claim 8 wherein the combination is a selected one of the multi-cast packets received from the other telecommunication devices engaged in the concurrent telephonic communication.

10. The telecommunication conferencing system of claim 8 further comprising:

a second I/O device in electrical communication with a second network and the packet controller.

11. The telecommunication conferencing system of claim 8 wherein the I/O device of each telecommunication device communicates with the network via a first communication path, and each telecommunication device further includes a second I/O device in electrical communication with a second network via a second communication path.

12. The telecommunications conferencing system of claim 8 wherein each telecommunication device receives a list of participants based on the telecommunication devices participating in the concurrent telephonic communication, the packet controller of each telecommunication device forwarding or dropping packets without the identifier corresponding to the participants, and forwarding packets with the identifier corresponding to the participants to circuitry associated with the input device, the circuitry producing audio signals corresponding to the voice data in the packets.

13. The telecommunications conferencing system of claim 12 wherein the list of participants is based on the identifier associated with each of the telecommunication devices engaging in the concurrent telephonic communication.

14. A method for conducting a concurrent telephonic communication among at least three telecommunication devices connected to a network, comprising the steps of:

receiving at one of the telecommunication devices voice data packets transmitted by the other telecommunication devices conducting the concurrent telephonic communication;

receiving an audio signal from a local input and generating packets from the audio signal from the local input;

forwarding the generated packets from the audio signal from the local input from that one telecommunication device to the other telecommunication devices conducting the concurrent telephonic communication;

generating at that one telecommunication device a combination of the received voice data packets and generated packets from the audio signal from the local input;

generating at that one telecommunication device audio signals corresponding to the combination of the received voice data packets and the generated packets from the audio signals from the local input.

15. The method of claim 14 wherein said step of receiving an audio signal from a local input and generating packets from the audio signal includes:

generating from the received audio signals from the local input a unicast packet for each of the other telecommunication devices conducting the concurrent telephonic communication, each unicast packet having voice data corresponding to the received audio signals; and

forwarding each generated unicast packet to the network.

16. The method of claim 14 further comprising the step of selecting only one of the voice data packets received from each of the other telecommunication devices to generate the combination.

17. The method of claim 14 wherein said step of receiving an audio signal from a local input and generating packets from the audio signal includes:

generating from the received audio signals multi-cast packets having voice data corresponding to the received audio signals from the local input; and

forwarding the multi-cast packets to the network.

18. The method of claim 14, wherein the step of receiving an audio signal from a local input and generating packets from the audio signal includes using a packet controller to generate multi-cast packets from the audio signals received from a local input device, and forwarding the generated multi-cast packets to an input/output device of that one of the telecommunication devices for transmission to the network, the input/output device being connected to the network for transmitting packets over the network and receiving packets, each generated multi-cast packet including the identifier associated with each of the telecommunication devices engaging in the concurrent telephonic communication.

19. The method of claim 18 wherein each network device receives a list of participants based on the network devices participating in the concurrent telephonic communication, the packet controller of each network device forwarding or dropping packets without the identifier corresponding to the participants, and forwarding packets with the identifier corresponding to the participants to circuitry associated with the local input device, the circuitry producing audio signals corresponding to the voice data in the packets.

20. The method of claim 19 wherein the list of participants is based on the identifier associated with each of the network devices engaging in the concurrent telephonic communication.

21. An audio conferencing system comprising:

a network;

a first network device connected to the network;

a second network device connected to the network;

a third network device connected to the network, each network device including a network input/output device for receiving packets from other devices connected to the network and sending packets on the network, a local device with a local sound input and a sound output, and a packet controller in electrical communication with the input/output device and the local device, the packet controller (a) generating packets from the audio signals received by the local sound input, (b) forwarding the generated packets to the input/output device for transmission to the network, (c) combining packets received by the input/output device and the generated packets from the audio signals received by the local sound input, and (d) producing audio signals based on the combined packets.

22. The audio conferencing system according to claim 21, wherein the packets generated by the packet controller are multi-cast packets from the audio signals received from the input device, said packet controller forwarding the generated multi-cast packets to the input/output device for transmission to the network, each generated multi-cast packet including the identifier associated with each of the telecommunication devices engaging in the concurrent telephonic communication.

23. The audio conferencing system of claim 22 wherein each network device receives a list of participants based on the network devices participating in the concurrent telephonic communication, the packet controller of each network device forwarding or dropping packets without the identifier corresponding to the participants, and forwarding packets with the identifier corresponding to the participants to circuitry associated with the input device, the circuitry producing audio signals corresponding to the voice data in the packets.

24. The audio conferencing system of claim 23 wherein the list of participants is based on the identifier associated with each of the network devices engaging in the concurrent telephonic communication.

25. An audio conferencing system comprising:

a network;

a first network device connected to the network;

a second network device connected to the network;

a third network device connected to the network, each network device including a network input/output device for receiving packets from other devices connected to the network and sending packets on the network, a local device with a local sound input and a sound output, and a packet controller in electrical communication with an input/output device and the local device, the packet controller a packet controller in electrical communication with the Input/output device and the input device, the packet controller (a) generating multi-cast packets from the audio signals received from the input device, (b) forwarding the generated multi-cast packets to the Input/output device for transmission to the network, each generated multi-cast packet including the identifier associated with each of the network devices engaging in the concurrent telephonic communication, (c) forwards the generated packets to the input/output device for transmission to the networks, (d) combines packets received by the input/output device and packets from the audio signals received by the input device and (e) produces audio signals for providing and audio output at the local device based on the combined packets.