Data compression over packet networks
First Claim
1. A communication method for use in a communication system including a first communication device in communication with a second communication device over a packet network, said method comprising:
- receiving a first compressed data from said second communication device by said first communication device over said packet network, wherein said first compressed data is compressed according to a first protocol;
decompressing said first compressed data, by said first communication device, according to said first protocol to generate a first decompressed data;
compressing said first decompressed data to generate a second compressed data, wherein said second compressed data is compressed by said first communication device according to a second protocol;
transmitting said second compressed data to a third communication device in communication with said first communication device;
receiving a third compressed data from said third communication device by said first communication device, wherein said third compressed data is compressed according to said second protocol; and
transmitting said third compressed data to said second communication device, without decompressing said third compressed data, by said first communication device to said second communication device over said packet network;
wherein said first protocol differs from said second protocol.
9 Assignments
0 Petitions
Accused Products
Abstract
Methods and systems are provided for use in a MoIP system including a first modem, a second modem and a third modem. An exemplary communication method includes the steps of receiving a call from the first modem by the second modem over a telephone line, contacting the third modem by the second modem over a packet network, receiving information, from the third modem by the second modem, relating to one or more data compression protocols supported by the third modem, handshaking by the second modem with the first modem to establish a connection, and negotiating a first data compression protocol by the second modem with the first modem, wherein the first data compression protocol is according to the information relating to one of the one or more data compression protocols.
-
Citations
35 Claims
-
1. A communication method for use in a communication system including a first communication device in communication with a second communication device over a packet network, said method comprising:
-
receiving a first compressed data from said second communication device by said first communication device over said packet network, wherein said first compressed data is compressed according to a first protocol; decompressing said first compressed data, by said first communication device, according to said first protocol to generate a first decompressed data; compressing said first decompressed data to generate a second compressed data, wherein said second compressed data is compressed by said first communication device according to a second protocol; transmitting said second compressed data to a third communication device in communication with said first communication device; receiving a third compressed data from said third communication device by said first communication device, wherein said third compressed data is compressed according to said second protocol; and transmitting said third compressed data to said second communication device, without decompressing said third compressed data, by said first communication device to said second communication device over said packet network; wherein said first protocol differs from said second protocol. - View Dependent Claims (2, 3, 4, 5)
-
-
6. A communication method for use in a communication system including a first modem, a second modem and a third modem, said method comprising:
-
receiving a call from said first modem by said second modem over a telephone line; contacting said third modem over a packet network; receiving information, from said third modem by said second modem, relating to one or more data compression protocols supported by said third modem; handshaking by said second modem with said first modem to establish a connection; and negotiating a first data compression protocol by said second modem with said first modem, wherein said first data compression protocol is according to said information relating to one of said one or more data compression protocols. - View Dependent Claims (7, 8, 9, 10, 11, 12)
-
-
13. A communication device comprising:
-
a receiver configured to receive a first compressed data from a first device over a packet network, wherein said first compressed data is compressed according to a first protocol; a decompressing module configured to decompress said first compressed data according to said first protocol to generate a first decompressed data; a compressing module configured to compress said first decompressed data according to a second protocol to generate a second compressed data, wherein said second protocol differs from said first protocol; and a transmitter configured to transmit said second compressed data to a second device over a communication line; wherein a third compressed data from said second device is passed through, without decompressing said third compressed data, to said first device over said packet network, and wherein said third compressed data is compressed according to said second protocol. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
-
-
21. A modem comprising:
-
a receiver configured to receive a call from a first modem over a telephone line; a processing module configured to contact a second modem over a packet network in response to said call, and configured to receive information from said second modem relating to one or more data compression protocols supported by said second modem; a handshaking module configured to establish a connection with said first modem; and a data compression module configured to negotiate a first data compression protocol with said first modem; wherein said first data compression protocol is according to said information relating to one of said one or more data compression protocols. - View Dependent Claims (22, 23, 24, 25, 26, 27)
-
-
28. A communication method for use in a communication system including a first modem, a second modem and a third modem, said method comprising:
-
receiving a call from said first modem by said second modem over a telephone line; contacting said third modem by said second modem over a packet network, wherein said third modem is in communication with a device; receiving information, from said device by said second modem, relating to one or more data compression protocols supported by said device; handshaking by said second modem with said first modem to establish a connection; and negotiating a first data compression protocol by said second modem with said first modem, wherein said first data compression protocol is according to said information relating to one of said one or more data compression protocols. - View Dependent Claims (29, 30, 31, 32, 33, 34, 35)
-
Specification