| 摘要 |
<p>The invention relates to a method and a system for auxiliary information transmission over a HDLC digital link. In order to perform transmission of an original digital signal between a local point and a distant point, or vice versa, the original flag bytes are transcoded into transcoded flag bytes a) from auxiliary information in order to generate and transmit b) a transcoded digital signal. On reception, the transcoded flag bytes are decoded and interpreted c), then subjected to reverse transcoding d) in order to reconstitute the original flag bytes. The original digital signal is reconstituted and transmitted to an application e). Application to the transmission of auxiliary data of any type, to management of the HDLC digital link, to the creation of auxiliary services. <IMAGE></p> |
