Nippon Telegraph and Telephone Corporation

Masahiko Noguchi

Nobuhiro Kimura

Takato Toda

Taichi Osada

Shuji Kimura

Ryo Nagaoka

Takashi Yasunaga

Ruriko Matsuura

A control system including: a first wireless telephone terminal; a second wireless telephone terminal; and a wireless mobile object. The first wireless telephone terminal includes a call placement/reception unit that establishes a voice channel over a mobile communication network with the second wireless telephone terminal and the wireless mobile object by using a multi-point call function of controlling a voice call among a plurality of points. A control unit controls the wireless mobile object by transmitting a control signal to the wireless mobile object through the voice channel, and transmits, to the second wireless telephone terminal through the voice channel, a change signal for changing a user who maneuvers the wireless mobile object when strength of radio waves from the wireless mobile object decreases to less than a threshold value.

Control system, radio telephone device, control method and program

Growing community of inventors

Musashino, Japan

Masahiko Noguchi