Nissan Motor Company Limited

Tooru Futami

Tadashi Suzuki

Norimasa Kishi

Minoru Tomikashi

Hitoshi Takeda

Toshiharu Nakajima

An information providing system for vehicles includes: a first information center; a second information center; and an on-vehicle apparatus. The first information center includes a voice line to be used by an operator, an information search device that executes a search for facility information from a telephone directory data recording device, and a data transmission device that transmits the facility information obtained through the search executed by the information search device. The second information center includes a position search device that executes a search for position data corresponding to the facility information transmitted from the first information center, from a position data recording device, and a data line. The on-vehicle apparatus includes a communication device that obtains the facility information provided as a voice message from the first information center via the voice line and obtains the position data from the second information center via the data line.

Information providing system

A loop-type data transmission/reception network system has a plurality of data processing stations and a single data transmission/reception route which interconnects said stations in a loop for transmitting necessary data between the stations, each of the stations comprising: (a) means for detecting a break-down in the data transmission/reception route between the station itself and the preceding station; (b) means responsive to the detection of a break-down in the data transmission/reception route between the station itself and the preceding station by the detection means for transmitting break-down information to the subsequent station; and means for reversing the transmission direction in the data transmission reception route in accordance with the break-down information transmitted by the break-down information transmitting means.

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Fujisawa, Japan

Tooru Futami