Fujitsu Corporation

Fujitsu Ten Limited

Masayoshi Moriya

Makoto Yoshida

Nobutsugu Fujino

Yuuta Nakaya

Kazumasa Ushiki

Ichiro Iida

Kenji Oka

Mamoru Machida

Tetsuo Seki

Satoshi Ishii

Akihiro Ohta

Kazuaki Hamada

A mobile communication apparatus includes a storage unit that stores therein correspondence information correlating area and transmission resource; an area deducing unit that deduces in which area the mobile communication apparatus is located; a selecting unit that selects the transmission resource correlated, in the correlation information stored by the storage unit, with the area deduced by the area deducing unit; and a transmitter that using the transmission resource selected by the selecting unit, transmits data to a second mobile communication apparatus.

Communication system including correlation information correlating area and transmission resource

In order to provide the method and the device for distance measurement by pulse radar that securely eliminates the false echo from the distance over the detectable limit determined by the pulse generation cycle, the pulse radar comprises the pulse signal sending unit that generates the pulse signals with different cycles at OSC, switches to the predetermined intervals by OSC switch, and sends the pulse signal to targets, the reflected signal receiving unit that receives the reflected signals and stores the data in the RAM, the reflected signal data acquisition unit that obtains the data of each reflected signal, and the reflected signal identification unit that compares the intensity of the reflected signals obtained at the same lag time point during a certain time period after sending the pulse signal for reference and identifies the reflected signals of the sent pulse signal for reference.

Method and device for distance measurement by pulse radar

Growing community of inventors

Kawasaki, Japan

Masayoshi Moriya