Patent ID: 8595285
Filing Date: 2013-11-26
Classification: H04H,H04N

Abstract:
1. Receiver for a text-information signal carrying text-based information content being distributed to information objects, comprising: a transport-layer receiver configured to receive a transport signal so as to acquire a sequence of transport units; an application-layer receiver comprising: wherein the fragment headers associated with the sequence of the fragment sections are configured such wherein the de-fragmenter is configured to perform the de-fragmentation by a) checking the fragment header with which a current fragment section is associated as to whether the current fragment section is the first fragment section of a sub-sequence of fragment sections, b) if so, check the fragment header of the current fragment section and the fragment headers associated with a run of fragment sections immediately following the current fragment section and ending at the fragment section immediately preceding a fragment section comprising a fragment header associated therewith which indicates that its fragment section is the first fragment section of a sub-sequence of fragment sections, or at a fragment section that comprises a fragment header associated therewith that indicates that its fragment section is the last fragment section of a sub-sequence of fragment sections, whatever occurs first in the sequence of fragment sections, as to whether there is a discontinuity in the continuity index of these fragment headers; c) if there is a discontinuity in the continuity index of these fragment headers or if the run ends at a fragment section that comprises a fragment header associated therewith that does not indicate that its fragment section is the last fragment section of a sub-sequence of fragment sections, discarding the current fragment section on the run of fragment sections and resuming the de-fragmentation at step a) with the fragment section immediately following the run of fragment sections as the current fragment section; and d) otherwise, composing the information object from the current fragment section and the run of fragment sections, wherein the transport signal has each transport unit contained therein in a packetized form distributed onto one or more than one transport packet, each transport packet comprising a transport packet header and a transport packet data section, wherein the transport-layer receiver is configured to inspect, for each transport packet, the transport packet header in order to obtain a payload extraction information on a length of the transport content section or on a payload portion within the transport packet section and to extract and forward, by use of the payload extraction information, merely bits of the transport packet to the application-level receiver, which concern at least one of the fragment header and the fragment section.