Patent ID: 7420961

Claim:
A method of transmitting data bits over a modem connection, comprising: receiving a first stream of data bits, by a first modem; performing a first set of one or more modem tasks on the first stream of bits, by the first modem, so as to generate a second stream of bits; modulating the second stream of bits, by the first modem, so as to form a modulated signal; transmitting the modulated signal from the first modem to a front end unit of a responding system; demodulating the modulated signal by the front end unit, so as to form a third stream of bits; performing, by the front end unit, on the third stream of bits, a second set of zero or more modem tasks, including fewer tasks than the first set of tasks, so as to form a fourth stream of bits; and transmitting the fourth stream of bits to an upper layer unit of the responding system, directly or through one or more additional units, over an addressable network.