Hitachi, Ltd.

Sotaro Hiroshima

Toshiro Suzuki

Yasuo Kogure

Takafumi Kojima

Akio Yasuda

The detection of any transmission error having developed between a central station and a transmitting station, and the start of a counterplan to the transmission error are realized by a simple construction. The central station transmits messages to which error correcting codes for correcting the transmission errors of the respective messages are affixed, to receivers via the transmitting stations through radio communications. Each of the receivers corrects the transmission error which has developed in relation to the message received through the radio communications, by the use of the error correcting code affixed to the particular message. On the other hand, each of the transmitting stations for relaying the messages detects whether or not the transmission error has developed in relation to the message received from the central station, by the use of the error correcting code affixed to the particular message, and it executes predetermined failure counterplan processing in a case where frequency in the transmission error detection has exceeded a predetermined frequency value.

Growing community of inventors

Chigasaki, Japan

Sotaro Hiroshima