High speed data transmission method and corresponding devices

A transmission/reception device, comprising:

• a logical coding circuit for associating at least two distinct transmission times (T, 2T) with at least two respective statuses of a data signal to transmit,
• a circuit that detects the falling edge generated by a remote transmission/reception device,
• a circuit for generating, in response to the detection of the falling edge generated by a remote transmission/reception device, for a status of the data signal, approximately exclusively a plateau on a first voltage level for approximately the time defined as the transmission time (T, 2T) associated with the status (“0”, “1”) to transmit and a rising edge, to the exclusion of any falling edge.

A transmission/reception device, comprising:

• a logical coding circuit for associating at least two distinct transmission times (T, 2T) with at least two respective statuses of the data signal S to transmit,
• a circuit for the detection of a rising edge generated by a remote transmission/reception device,
• a circuit for generating, in response to the detection of the said rising edge generated by a remote transmission/reception device, for a status of the data signal to transmit, approximately exclusively a plateau at a second voltage level approximately for the time defined by the transmission time (T, 2T) associated with the status (“0”, “1”) to transmit and a falling edge, to the exclusion of any rising edge.