Fujitsu Ten Limited

Fujitsu Semiconductor Limited

Renesas Electronics Corporation

Fujitsu Corporation

Renesas Technology Corp.

Kaoru Noumi

Yukio Ishikawa

Susumu Nishihashi

Yasuyuki Umezaki

Hidetaka Ebeshu

Tsuyoshi Takatori

Hiroaki Shimauchi

Shigeo Koide

Yukio Fujisawa

Tomoyuki Katou

Tomohide Kasame

Junji Takahashi

Nobuaki Kawasoe

Akiko Furuya

Masato Ishio

Takehito Iwanaga

Shinichiro Takatomi

Tomohiro Matsuo

Hiroshi Arita

Masatoshi Hagiwara

Satoshi Fukui

Masayoshi Kusumoto

Naoto Shimoji

Takuhiro Tarumoto

Yasuhiro Shirota

Kokoro Hayashi

Koji Uchihashi

Koichi Oogaki

Nobuaki c/oFujitsu Ltd Kawasoe

Akiko c/oFujitsu Ltd Furuya

Yasuyuki c/oFujitsu Limited Umezaki

Naoto c/oFujitsu Ltd Shimoji

Masayoshi c/oFujitsu Ltd Kusumoto

A gateway apparatus for performing transfer control of frame data between communication channels includes a routing map that stores ID information about the frame data and information about a communication channel that uses the ID information, and a search engine unit that routes the frame data to a transfer destination on the basis of the ID information of the frame data received and the routing map. The search engine unit does not transfer the frame data to the transfer destination when the ID information about the frame data received is ID information that is not used in the communication channel through which the frame data is received.

Gateway apparatus and data transfer control method

An error detector has a parity bit generator which generates error detection data for data strings sent from a CPU I/F to a memory, a parity checker which detects an error in the data strings output from the memory based on the error detection data, and a selector circuit which switchingly outputs the data from the parity bit generator and the data from a CPU which sends diagnostic data. While the selector circuit is switched to output the data from the CPU, based on the error detection data output from the selector circuit, the error detector conducts a failure diagnosis of error detection functions including at least one of the parity bit generator and the parity checker.

Error detector and error detection method

A gateway apparatus for performing transfer control of frame data between a plurality of different communication channels is provided with a time stamp unit for adding time stamp information to received frame data and a data discarding unit for determining processing delay of the frame data or abnormality of the apparatus by referring to the time stamp information and for deleting the time stamp information added to the frame data at the time of sending the frame data.

Gateway apparatus and data managing method

A communication conversion apparatus achieve efficient conversion without conversion delay and converts messages that effect communication with different communication protocols and schedules. In a message conversion apparatus that performs message conversion of different communication protocols, a routing circuit and a scheduler circuits that perform scheduling of the different communication protocols are separately provided. And time-triggered scheduling and event-triggered scheduling are separately performed. Conversion of FlexRay and CAN messages can be efficiently implemented.

Communication message conversion apparatus and communication message conversion method

There is provided a gateway apparatus that controls a forwarding process of frame data between multiple communication channels, said gateway apparatus including a search engine that is respectively provided for each of the multiple communication channels to route the frame data between the multiple communication channels, and a first storage portion that is respectively provided for each of the multiple communication channels to temporarily stores the frame data routed.

Gateway apparatus and routing method

A vehicular electronic control apparatus includes a vehicle control section and a unit control section. The vehicle control section controls a function dependent on a vehicle equipment. The unit control section that controls a function of a unit provided in a vehicle. The vehicle control section and the unit control section are disposed in independent hardwares and software platforms, respectively.

Vehicular electronic control apparatus and method for controlling vehicle

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Kobe, Japan

Kaoru Noumi