Apparatus for and a method of storing a real time stream of digital information signals

摘要

An apparatus for recording a substantially real time stream of digital information signals on a disc like record carrier has been proposed. The stream of information signals represents information arranged in a sequence of video frames, each video frame arranged in separate, consecutive data blocks comprised in separate, consecutive data packets. The apparatus comprises input means (1) for receiving the stream of digital signals, processing means (100) for processing the stream of digital information signals to obtain digital information signals and writing means (102) for writing the digital information signals into the units of recording on the disc like record carrier. The processing means (102) are adopted to detect the data blocks in the data packets and to allocate consecutive data blocks comprised in multiple data packets into consecutive logical units, a size of each logical unit corresponding to the predetermined size of the unit of recording. This apparatus is specifically suitable for recording digital video (DV) signals in a manner that preserves the format of original data as much as possible.

主权项

1. An apparatus for recording a substantially reel time stream of digital video information signals on a disc like record carrier, the stream of digital video information signals representing information arranged in a sequence of video frames, each video frame arranged in separate, consecutive data blocks transmitted in data packets, the data blocks comprising data blocks headers, the disc like record carrier having units of recording of a predetermined size larger than a size of the data packets, the apparatus comprising:
input means for receiving the stream of digital video information signals; processing means for processing the stream of digital video information signals to obtain recordable information signals representing logical units of information; writing means for writing the recordable information signals into the units of recording on the disc like record carrier,and wherein:
the processing means are adapted to detect the data blocks in the data packet to separate the data blacks from the data packets, to generate allocation information using information comprised in the data blocks headers, to allocate consecutive data blocks comprised in multiple data packets to consecutive logical units of information according to the allocation information, a size of each logical unit of information corresponding to the predetermined size of the unit of recording and the processing means are adapted to allocate a first data block representing a beginning of a video frame comprised in the sequence of video frames to a predefined location in a logical unit of information.