Fujitsu Corporation

Masaru Nishida

Hiroaki Shiraishi

Takato Ohashi

Naoyuki Takeshita

Kazuyuki Inomoto

Katsuhiko Hirashima

Junichi Sawada

Hiroshi Ohtsuru

Shinji Takao

Yoshinobu Takagi

Tateo Shimaru

Ichiro Kagami

Takafumi Kamito

Iwao Hashizume

Hisaya Urabe

Masao Mutou

Tsuneharu Suzuki

Yushi Nobayashi

Mineo Kotegawa

A transmission apparatus includes a first storage configured to store data received from external into a write enable area, a second storage configured to store the data in accordance with a write request and output a retry request in response to occurring an error of writing a first data included in the data, and a controller configured to read the data from the first storage and send the write request to the second storage, set an area of the first storage storing the first data to a write disable area in combination with stop sending the retry request to external when receiving the retry request from the second storage, and send the first data reading from the write disable area of the first storage to external in response to a read request from external.

Transmission apparatus and retry method

A reception apparatus is configured to receive data including a plurality of packets each of which has information on a time point when the packet is generated; to extract a terminal packet which is a packet included in the data received and which has information on a time point which is nearest to a current time point; and to control an operation clock by comparing the information on the time point included in the terminal packet with information on an elapsed time obtained by adding information on a time point, which is included in a terminal packet of preceding data, to an elapsed time from when the preceding data is received to the current time point.

Reception apparatus, reception method, and reception program

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

Growing community of inventors

Fukuoka, Japan

Masaru Nishida