Abstract: CPCS-UU in the CPCS-PDU trailer defined by the AAL Type 5 in an ATM network is used as a sequence number for error handling. CPCS-UU in the CPCS-PDU trailer is used as a sequence number of an MPEG-2 transport stream packet contained in CPCS-PDU; by monitoring the number of packets, and based on the check results of CRC-32, LI, and cell count, error handling is performed at the receiving end, and for corrupted packets, null packets are inserted in place of the corrupted packets.

Abstract: A media information distribution service system, such as a video-on-demand service system, is disclosed which, even if the capacity of a line is small and the number of lines connected to a media server, such as a video server, has to be increased accordingly, permits an uneconomical increase in the number of line circuits in the media server to be checked. In the system, a subscriber group that a distributor accommodates can be associated with a plurality of distributor-side paths on a distributor-side line. Each of the distributor-side paths is connected to a respective one of server-side paths on separate server-side lines connecting the media server and an exchange. In sending media information to a subscriber group, an in-server path control unit installed in the media server is permitted to select a free one out of server-side paths on server-side lines allocated for that subscriber group and activates a line interface corresponding to the free server-side path.

Abstract: A liquid crystal display device has a liquid crystal layer having super twisted nematic liquid crystal with a twist angle of 260.degree., the liquid crystal layer being sandwiched between a first substrate and a second substrate. A color filter is formed on the second substrate. The first substrate is orientation-processed so that pretilt angles of the liquid crystal to the first substrate are 5.5.degree.. The second substrate is orientation-processed so that pretilt angles of the liquid crystal to the second substrate are 3.0.degree.. Therefore, it is possible to easily reduce occurrence rate of inadequate display and, at the same time, to maintain beneficial characteristics of a liquid crystal display device with a twist angle of 250.degree. or more, i.e., a good temperature characteristic, a small contrast change against a temperature change, and good quality display.