Method and system for broadcasting live data over a network

• US 7,404,002 B1
• Filed: 03/06/2003
• Issued: 07/22/2008
• Est. Priority Date: 03/06/2003
• Status: Active Grant

• Current Assignee: NVIDIA Corporation
• Original Assignee: NVIDIA Corporation
• Inventors: Pereira, Mark Anthony
• Primary Examiner(s): Flynn; Nathan J.
• Assistant Examiner(s): DENNISON, JERRY B
• Application Number:
  US10/384,232
• Time in Patent Office: 1,965 Days
• Field of Search: 709/203, 709/216, 709/217, 709/219, 709/231, 709/239
• US Class Current: 709/231
• CPC Class Codes: H04L 12/1854 with non-centralised forwarding system, e.g. chaincast
• CPC Class Codes: H04L 63/08 for authentication of entities cryptographic mechanisms or cryptographic arrangements for entity authentication H04L9/32

Abstract

Method and system for broadcasting live data over a network are described. In one embodiment, live data is accessed. Next, a first client is authenticated. The live data is then broadcast to a first client, wherein the first client is capable of buffering and re-transmitting the live data. Next, a second client is authenticated. A list of clients receiving the live data is then sent to the second client. The second client then selects the first client from the list, contacts the first client, and then receives the live data from the first client.

Claims

1. A method for broadcasting live data over a network comprising:

accessing live data;

authenticating a first client;

broadcasting from a server, the live data to the first client, wherein the first client buffers and re-transmits the live data;

authenticating a second client; and

sending a list of clients receiving the live data to the second client, wherein the second client performs;

selecting the first client from the list;

contacting the first client; and

receiving the live data from the first client;

the first client signaling the second client informing the second client of a departure of the first client; and

following said signaling, said first client terminating said re-transmitting.

2. The method of claim 1 further comprising:

maintaining a list of clients authorized to receive the live data.

3. The method of claim 1 wherein the second client selects the first client from the list of clients based on broadcasting properties of the first client comprised of:

IP address, speed of connection, number of clients already receiving the live data from the first client, and history of first client up-time.

4. The method of claim 1 further comprising:

the first client maintaining the buffering and re-transmitting of the live data to the second client until the second client transfers to a new transmitter.

5. The method of claim 4 further comprising:

prohibiting the second client from receiving the live data from any other clients accessing the broadcast at a lower level.

6. The method of claim 1 further comprising:

charging a fee per client per amount of live data received; and

providing a reward per client per amount of live data transmitted.

7. A computer system comprising:

a) a first client;

b) a second client; and

c) a server system comprising;

a bus;

a memory unit coupled with the bus; and

a processor coupled with the bus for executing a method for broadcasting live data over a network comprising;

accessing live data;

maintaining a list of clients authorized to receive the live data;

authenticating the first client;

broadcasting the live data to the first client, wherein the first client is capable of buffering and re-transmitting the live data;

authenticating the second client;

sending a list of clients receiving the live data to the second client; and

wherein the second client performs;

selecting the first client from the list;

contacting the first client; and

receiving the live data from the first client;

wherein before the first client stops the re-transmitting of the live data, the first client;

signals the second client informing the second client of the departure status of the first client; and

maintains the buffering and re-transmitting of the live data to the second client until the second client transfers to a new transmitter.

8. The computer system of claim 7 wherein the second client selects the first client based on broadcasting properties of the first client comprised of:

IP address, speed of connection, number of clients already receiving the live data from the first client, and history of first client up-time.

9. The computer system of claim 7 wherein the second client is prohibited from receiving the live data from any other clients accessing the broadcast at a lower level in the same broadcast chain.

10. The computer system of claim 7 wherein said server further performs:

charging a fee per client per amount of live data received; and

providing a reward per client per amount of live data transmitted.

11. A computer network comprising:

a) a server comprising a processor for performing a method of broadcasting live data comprising;

receiving live data;

maintaining a list of clients authorized to receive the live data;

authenticating a first client;

broadcasting the live data to the first client, wherein the first client is capable of buffering and re-transmitting the live data;

authenticating a second client; and

sending a list of clients receiving the live data to the second client;

b) wherein the second client further comprises a processor for;

receiving the list of clients receiving the live data including the first client;

selecting the first client from the list;

contacting the first client; and

receiving the live data from the first client; and

c) wherein the first client transmits a signal to the second client informing the second client of the departure status of the first client; and

the first client maintains the receiving and transmitting of the live data to the second client until the second client transfers to a new transmitter;

wherein the second client is prohibited from receiving the live data from any other clients accessing the broadcast at a lower level.

12. The computer network of claim 11 wherein the second client selects the first client based on broadcasting properties of the first client comprised of:

IP address, speed of connection, number of clients already receiving the live data from the first client, and history of first client up-time.

13. The computer network of claim 11 wherein the second client is a high priority client.

14. The computer network of claim 13 wherein the high priority client is a receive only client.