The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 07, 2025
Filed:
Dec. 05, 2019
Nippon Telegraph and Telephone Corporation, Tokyo, JP;
Ryo Nagaoka, Musashino, JP;
Masahiko Noguchi, Musashino, JP;
Shuji Kimura, Musashino, JP;
Nobuhiro Kimura, Musashino, JP;
Taichi Osada, Musashino, JP;
Takashi Yasunaga, Musashino, JP;
Takato Toda, Musashino, JP;
Ruriko Matsuura, Musashino, JP;
Nippon Telegraph and Telephone Corporation, Tokyo, JP;
Abstract
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.