Pioneer Electronic Corporation

Pioneer Corporation

Kinya Ohno

Kunihiro Minoshima

Hidemi Usuba

Sho Murakoshi

Makoto Matsumaru

Seiichi Hasebe

Hiroaki Shibuki

Masao Higuchi

Ryuichiro Morioka

Myrine Maekawa

Yasuyuki Noda

A relay device and the like are provided which are capable of easily transmitting/receiving information among information processors connected on buses whose information transmission standards are different from each other. A bridge Bfor connecting buses BSand BSwhose information transmission standards are different from each other includes: an operation unit () for performing an operation of instructing an operation of an apparatus connected to any of the buses BS; a message generatorfor generating a control message corresponding to the instructed operation; and a packet transmitter/receiver () for transmitting the generated control message to a target apparatus via the bus BS to which the target apparatus is connected.

Relay device, relay method, and information recording medium

A data transmission system capable of ensuring proper operation even when any nodes-to-bus connection, which is not allowed by restrictions, is made. The system implements data transmission among a plurality of nodes mutually connected by a cable serving as a bus. The system includes a first process for initializing a control process on the nodes to the bus in accordance with a change in an electrical connection of the bus, a second process of detecting a connection topology of the nodes, and a third process for identifying each node to be connected to the bus. A forbidden connection detecting process is provided for detecting if there is a loop connection path of the nodes on the bus and handling operations are provided for executing handling in accordance with a result of detection by the forbidden connection detecting process.

Data transmission system with bus failure recovery

Growing community of inventors

Tsurugashima, Japan

Kinya Ohno