IP Library Granted Patent US 7,450,570
Granted Patent B1
US 7,450,570 · App. 10/978,886 · Granted Nov 11, 2008

System and method of providing a high-quality voice network architecture

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Quick Facts
Patent No.
US 7,450,570
App. No.
10/978,886
Granted
Nov 11, 2008
Kind
B1
Abstract

Embodiments of the invention include a system and method for providing high quality voice/sound communications over a local loop of a telephone network. The method aspect of the invention comprises receiving a voice signal, digitizing the voice signal into a high quality voice signal, utilizing sampling rates greater than 8000 samples per second and/or sample sizes greater than 8 bits per sample, negotiating voice processing characteristics between a customer premises equipment and a network element such as a softswitch, receiving speech from a user at a customer premises equipment according to the negotiation, converting the received speech into high bandwidth signal and transmitting the high bandwidth signal to a telephone local loop, transmitting the high bandwidth signal from the local loop to wideband node that packetizes the high bandwidth signal for transmission to a packet network and receiving the packetized signal from the packet network at a switch that switches between an on-network or off-network status. A voice over IP platform may also be used to route packetized signals from the packet network to either the telephone network or another packet network.

Claims (53)

1. A system for providing high quality sound communications, the system comprising:

means for negotiating between a computing device and a network element characteristics associated with sound reception and transmission;

means for digitizing an audio signal into a high quality sound signal, utilizing sampling rates greater than 8000 samples per second and/or sample sizes greater than 8 bits per sample;

means for receiving a sound signal and transmitting an associated high quality sound signal from the computing device to a telephone local loop;

means for receiving the high quality sound signal from the telephone local loop and transmitting a packetized signal to a packet network, the packetized signal generated from the received high quality sound signal; and

means for receiving the packetized signal from the packet network and switching between an on-network and off-network status.

2. The system of claim 1 , wherein when the means for switching switches to an off-net status, the packetized signal is transmitted to a telephone network.

3. The system of claim 2 , wherein the telephone network is the publicly switched telephone network (PSTN).

4. The system of claim 1 , wherein the means for transmitting a packetized signal to a packet network further comprises a voice over IP network.

5. The system of claim 1 , wherein the means for transmitting a packetized signal to a packet network further comprises an asynchronous transfer mode (ATM) network.

6. The system of claim 1 , wherein the means for transmitting a packetized signal to a packet network further comprises means for transmitting the packetized signal over an Ethernet network.

7. The system of claim 1 , wherein when the means for switching switches to an on-network status, a call is transmitted from a first computing device to a second computing device without using a telephone network.

8. The system of claim 7 , wherein when the means for switching switches the system to an off-network status, a call is transmitted from the first computing device to the second computing device through a telephone network.

9. The system of claim 1 , wherein the network element is a softswitch.

10. The system of claim 1 , wherein the negotiated characteristics associated with sound reception and transmission comprise at least one of: sound compression, sound coding, signal sampling rate, and a signal transmission rate.

11. The system of claim 1 , wherein the negotiated characteristics associated with sound reception and transmission comprise technical capabilities of a calling party computing device.

12. The system of claim 11 , wherein the negotiated characteristics associated with sound reception and transmission further comprise the technical capabilities of a called party computing device.

13. The system of claim 1 , wherein the negotiated characteristics associated with sound reception and transmission relate to network capabilities.

14. The system of claim 13 , wherein the negotiated characteristics associated with sound reception and transmission further relate to network bottlenecks.

15. The system of claim 1 , wherein the means for switching of the high quality sound signal utilizes time domain switching.

16. The system of claim 15 , wherein the time domain switching uses an ISDN transport.

17. A method for providing high bandwidth communications, the method comprising, in a communications network:

negotiating sound processing characteristics between a computing device and a network element;

receiving a sound signal at the computing device according to the negotiation;

receiving a digitized sound signal, wherein the sound signal is digitized into a high quality signal, utilizing sampling rates grate than 8000 samples per second and/or sample sizes great than 8 bits per sample;

transmitting the high bandwidth signal to a wideband node that packetizes the high bandwidth signal for transmission to a packet network; and

receiving the packetized signal from the packet network at a switch that switches between an on-network or off-network status.

18. The method of claim 17 , wherein when the switch is on-network, the switch routes packetized signals from the packet network to a second packet network.

19. The method of claim 17 , wherein when the switch is off-network, the switch routes packetized signals from the packet network to a telephone network.

20. The method of claim 19 , wherein the telephone network is a publicly switched telephone network (PSTN).

21. The method of claim 17 , wherein transmitting the high bandwidth signal to a packet network uses an asynchronous transfer mode component.

22. The method of claim 17 , wherein transmitting the high bandwidth signal to a packet network occurs over an Ethernet network.

23. The method of claim 17 , wherein the network element is a softswitch.

24. The method of claim 17 , wherein the negotiated sound processing characteristics relate to at least one of: sound compression, sound coding, signal sampling rate, and a signal transmission rate.

25. The method of claim 17 , wherein the negotiated sound characteristics relate to technical capabilities of a calling party computing device.

26. The method of claim 25 , wherein the negotiated characteristics further relate to technical capabilities of a called party computing device.

27. The method of claim 17 , wherein the negotiated characteristics relate to network capabilities.

28. The method of claim 27 , wherein the negotiated characteristics further relate to network bottlenecks.

29. A system for providing high bandwidth communications, the system comprising:

a first computing device at a user location having a microphone to receive sound, digitize the sound into a high quality sound signal utilizing sampling rates greater than 8000 samples per second and/or samples sizes greater than 8 bits per sample and transmit the high quality sound signal using transmission characteristics that are negotiated with a network element;

a second computing device that receives the transmitted sound signal and transmits a packetized signal to a packet network; and

a switch connected a telephone network and a second packet network, the switch receiving the packetized signal from the packet-network and switching between an on-network and off-network status.

30. The system of claim 29 , wherein when the switch switches to an off-network status, the packetized signal is routed to a telephone network.

31. The system of claim 29 , wherein when the switch switches to an on-network status, the packetized signal is routed to the second packet network.

32. The system of claim 30 , wherein the telephone network is the publicly switched telephone network (PSTN).

33. The system of claim 29 , wherein the second computing device comprises an asynchronous transfer mode component.

34. The system of claim 29 , wherein the network element is the switch.

35. The system of claim 29 , wherein a local telephone loop communicates the sound signal from the first computing device to the second computing device.

36. A system for providing high bandwidth communications, the system comprising:

a first computing device at a user location having a microphone to receive sound, digitize the sound into a high quality sound signal utilizing sampling rates greater than 8000 samples per second and/or samples sizes greater than 8 bits per sample and transmit the high quality sound signal to a telephone local loop, the first computing device negotiating with a network element regarding sound transmission characteristics;

a second computing device that receives the high bandwidth signal from the telephone local loop and transmits a packetized signal to a packet network, the packetized signal generated from the received high bandwidth signal; and

a voice over IP platform connected to the packet network, a telephone network and a second packet network, wherein the voice over IP platform routes the packetized signal either the telephone network or the second packet network.

37. The system of claim 36 , wherein the voice over IP platform further comprises routing servers, application servers and a call control module that manage the routing of packetized signals from the packet network.

Assignments (5)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 14, 2012
From: AT&T INTELLECTUAL PROPERTY II, L.P.
To: CHANYU HOLDINGS, LLC
Reel/Frame 028199/0415 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 3, 2012
From: BARZEGAR, FARHAD; GERSZBERG, IRWIN; HILL, THOMAS W., JR.; MOLLICA, SCOTT JOSEPH
To: AT&T CORP.
Reel/Frame 028153/0599 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 20, 2012
From: AT&T PROPERTIES, LLC
To: AT&T INTELLECTUAL PROPERTY II, L.P.
Reel/Frame 027731/0063 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 16, 2012
From: AT&T CORP.
To: AT&T PROPERTIES, LLC
Reel/Frame 027718/0657 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 1, 2004
From: BARZEGAR, FARHAD; GERSZBERG, IRWIN; HILL, THOMAS W., JR.; MOLLICA, SCOTT JOSEPH
To: AT&T CORP.
Reel/Frame 015950/0994 →