4 results about "Datagram" patented technology

The invention relates to a method for transferring data telegrams (13a, 13b) from a transmitter (11a) to a receiver (11b), wherein a priority level is associated with the data telegrams (13a, 13b) to be transferred. The priority level specifies a priority to be considered for the transfer of the particular data telegram (13a, 13b). In order to perform the transfer of data telegrams having different priority levels with relatively less effort and thus even more quickly, a intermediate storage area (17a, 17b) is associated with each priority level in the transmitter (11a), the data telegrams (13a, 13b) are transferred over the physical communication medium (12) by means of different logical data connections (15a, 15b), wherein the number of logical data connections (15a, 15b) corresponds to the number of priority levels, data telegrams (13a) in the intermediate storage area (17a) associated with a lower priority level are transferred by means of the logical data connection (15a) associated with said priority level until at least one data telegram (13b) is present in the intermediate storage area (17b) associated with a higher priority level, and the data telegram (13b) in the intermediate storage area (17b); associated with the higher priority level is transferred by means of the logical data connection (15b) associated with the higher priority level. The invention further relates to a corresponding electrical device for transferring data telegrams.

A method of reducing overhead for datagrams that are transmitted to or received from a serial link that reduces overhead to no more than four bytes. The datagram includes at least a Protocol Data Unit (PDU) field, a Start-of-PDU Header (SPH) field, and a SPH Control (SCH) field. The SPH and SCH fields consist of two bytes. The datagram may additionally include End-of-PDU Header (EPH) and EPH Control (ECH) fields. A method may also involve substitution of flags for subsequent headers that are identical to previous headers.