Fujitsu Corporation

Masao Mutou

Hideaki Watanabe

Hideki Miyasaka

Kazuyuki Inomoto

Junichi Sawada

Hirohiko Inagaki

Hiroaki Shiraishi

Shinji Takao

Yoshinobu Takagi

Masaru Nishida

Ichiro Kagami

Yushi Nobayashi

Mineo Kotegawa

Kiyoshi Maeda

Takehira Masanori

A method is disclosed for setting a master node of a ring network that has adjacently connected nodes situated on rightward and leftward lines of a bidirectional transmission channel. The method includes the steps of: counting the number of nodes interposed between a designated node and each node other than the designated node on the rightward and leftward lines of the bidirectional transmission channel; and setting one of the nodes as the master node. The master node satisfies a relation of, NHC_L=NHC_R or NHC_L=NHC_R-, wherein NHC_L is the number of interposed nodes counted from the leftward line, and NHC_R is the number of interposed nodes counted from the rightward line.

Method and apparatus for setting master node of ring network

An encoding unit encodes and compresses picture data in a bit map format corresponding to the MPEG method. A packet assembling portion assembles the picture data encoded by the encoding unit as packets in the format corresponding to the MPEG method, and stores the packets to a storing medium. At this point, the packet assembling portion writes an I picture index to a packet that contains at least a part of I picture data. When a special reproducing operation is performed, a data storing unit reads only packets that have the I picture index. A decoding unit decodes only I picture data of picture data contained in packets read from the storing medium and displays the decoded picture data.

Moving picture data storing system and moving picture data decoding

Growing community of inventors

Yokohama, Japan

Masao Mutou