System and method for data feed acceleration and encryption

• US 20020080871A1
• Filed: 10/03/2001
• Published: 06/27/2002
• Est. Priority Date: 10/03/2000
• Status: Active Grant

• Current Assignee: Realtime Data LLC (Realtime Data Compression Systems, Inc.)
• Original Assignee: Realtime Data LLC (Realtime Data Compression Systems, Inc.)
• Inventors: Fallon, James J., Pickel, Paul F., McErlain, Stephen J.
• Granted Patent: US 9,143,546 B2
• Time in Patent Office: Days
• US Class Current: 375/240
• CPC Class Codes: H04L 12/1895 for short real-time information, e.g. alarms, notifications, alerts, updates
• CPC Class Codes: H04L 65/1101 Session protocols
• CPC Class Codes: H04L 65/70 Media network packetisation
• CPC Class Codes: H04L 65/80 Responding to QoS
• CPC Class Codes: H04L 67/55 Push-based network services
• CPC Class Codes: H04L 69/04 Protocols for data compression, e.g. ROHC

Abstract

Systems and methods for providing accelerated transmission of broadcast data, such as financial data and news feeds, over a communication channel using data compression and decompression to provide secure transmission and transparent multiplication of communication bandwidth, as well as reduce the latency associated with data transmission of conventional systems.

Claims

1. A method for providing accelerated transmission of data over a network, comprising the steps of:

receiving a data stream for transmission over a communication channel;

compressing, in real-time, the data stream at a compression rate that increases the effective bandwidth of the communication channel;

transmitting the compressed data stream over the communication channel; and

decompressing, in real time, the compressed data stream received over the communication channel.

2. The method of claim 1, wherein the step of compressing comprises the steps of compressing the data stream using a statistical compression algorithm, wherein the statistical compression algorithm uses code tables that are derived based on a data model associated with the data stream.

3. The method of claim 2, wherein the statistical compression algorithm comprises Huffman encoding.

4. The method of claim 2, wherein the statistical compression algorithm comprises Arithmetic encoding.

5. The method of claim 2, wherein the code tables comprise a state machine.

6. The method of claim 5, wherein the state machine comprises one or more global states each having one or more code tables associated therewith.

7. A method for providing accelerated transmission of data over a network, comprising the steps of:

receiving a data stream for transmission over a communication channel;

compressing, in real-time, the data stream;

transmitting the compressed data stream over the communication channel; and

decompressing, in real time, the compressed data stream received over the communication channel, wherein a latency associated with the compressing, transmitting and decompression steps is less than a latency associated with transmitting the data stream in uncompressed format.

8. The method of claim 7, wherein the step of compressing comprises the steps of compressing the data stream using a statistical compression algorithm, wherein the statistical compression algorithm uses code tables that are derived based on a data model associated with the data stream.

9. The method of claim 8, wherein the statistical compression algorithm comprises Huffman encoding.

10. The method of claim 8, wherein the statistical compression algorithm comprises Arithmetic encoding.

11. The method of claim 8, wherein the code tables comprise a state machine.

12. The method of claim 8, wherein the state machine comprises one or more global states each having one or more code tables associated therewith.

14. The method of claim 13, wherein the step of compressing using a content-independent system comprises the steps of compressing the data stream using a statistical compression algorithm, wherein the statistical compression algorithm uses code tables that are derived based on a data model associated with the data stream.

15. The method of claim 14, wherein the statistical compression algorithm comprises Huffman encoding.

16. The method of claim 14, wherein the statistical compression algorithm comprises Arithmetic encoding.

17. The method of claim 14, wherein the code tables comprise a state machine.

18. The method of claim 17, wherein the state machine comprises one or more global states each having one or more code tables associated therewith.

13. A method for providing accelerated transmission of data over a network, comprising the steps of:

compressing a data stream using a content-dependent compression system that is constructed based on a data model associated with the data stream;

transmitting the compressed data stream over a communication channel; and

utilizing a content-independent compression system to compress the data stream, when a compression ratio obtained using the content-dependent system falls below a predetermined threshold, or when a latency associated with the data transmission exceeds a predetermined threshold.