04780883 is referenced by 58 patents and cites 13 patents.

A method for changing the data transmission rates in a synchronous data communication system including a first modem and a second modem coupled together through a transmission channel, the transmission channel including a first path for transmissions from the first modem to the second modem and a second path for transmission from the second modem to the first modem, includes the steps of determining, at the first modem, that the second path of the transmission channel is adequately high in quality to support an increase in transmission rate. Next it is determined, at the second modem, that the first path of the transmission channel is adequately high in quality to support an increase in transmission rate. A training sequence is then transmitted at an increased transmission rate from the second modem to the first modem. Next, a training sequence is transmitted at the increased transmission rate from the first modem to the second modem.

Title
Data modem with adaptive synchronized speed change
Application Number
6/878765
Publication Number
4780883
Application Date
June 26, 1986
Publication Date
October 25, 1988
Inventor
Raul F Fernandez
Miami
FL, US
Juan E Farias
Sunrise
FL, US
Donald C O Connor
Miami
FL, US
Agent
Jerry A Miller
Assignee
Racal Data Communications
FL, US
IPC
H04B 1/38
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