Each of the user interfaces has a navigation bar.

The navigation bar includes multiple scan phase instruction texts and highlights a scan phase instruction text corresponding to a current scan phase.

The recording pit row is wobbled in a phase opposite to wobbling phase of the recording track.

The invention is characterized in that the production cycle includes an interruption of flow between an oxidizing phase and a scavenging phase.

The method includes a synchronisation point (SP) where the results of the mark phase are passed onto the sweeping phase.

Advantageously the volumetric pump is formed by the pump casing of the cylinder which is in the scavenging phase.

The phase of the periodic scan is changed in response to one of the wireless devices being detected in one of the scans.

The X-ray system improves an existing user interface so that a current scan phase of the operation can be clearly known.

In the rate sweeping phase, a timing error detector (24) examines the sampling signal generated by a decimator (16).

In this way the sweep and admission phase begins, which includes the rest of the race.

The first part of this second cycle time is still dedicated to the sweep and admission phase.

A baud rate acquisition circuit (10) for synchronizing a sampling signal with an input signal operates in broad rate sweeping and a rate fine tuning phases.