This invention relates to a method for the transmission using the half-duplex mode of a data signal from a first transmissionreception device to a second transmissionreception device, called the remote device, comprising a logical coding step in which at least two distinct transmission times are associated with two respective statuses of the data signal to transmit. The sample materials may be located in a plurality of process chambers in the device, which is rotated during heating of the sample materials. The diffusing section includes a first lobe diverging longitudinally and laterally from the metering section, a second lobe diverging longitudinally and laterally from the metering section, an upstream end located at the outlet, a trailing edge located at the outlet opposite the upstream end and generally opposite first and second sidewalls. In one embodiment, the sample rates that are converted between are associated with a compact disc format having a sample rate of about 44. 25 or less into a CVD reaction chamber inside which a substrate is placed; and forming a hydrocarbon-based polymer film on the substrate by plasma polymerization of the gas at a processing temperature wherein T\u2266. The circuit may be configured to generate a sequence of hash values in a table from a stream of data values with repetitive values, find two consecutive ones of the hash values in the sequence that have a common value and create a shortened hash chain by generating a pointer in the table at an intermediate location that corresponds to a second of the two consecutive hash values.