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:
Jun. 25, 2024
Filed:
Jul. 04, 2019
Nippon Telegraph and Telephone Corporation, Tokyo, JP;
Kazutaka Hara, Musashino, JP;
Tomohiro Taniguchi, Musashino, JP;
Ryota Shiina, Musashino, JP;
Tomoki Murakami, Musashino, JP;
Toshiro Nakahira, Musashino, JP;
NIPPON TELEGRAPH AND TELEPHONE CORPORATION, Tokyo, JP;
Abstract
An objective is to provide a communication system, a terminal, a communication method, and a program capable of improving the probability of successful authentication regardless of mobility of the terminal. The communication system according to the present invention includes a terminalincluding: a sensor unitthat senses a state of the terminal and includes at least one of an acceleration sensor, a gyro sensor, a position sensor, and a proximity sensor; an optical receiverthat receives an optical modulation signal and outputs an electrical signal; a correction circuitthat corrects the electrical signal on a basis of the state of the terminal sensed by the sensor unitwhen one of the following is true: illuminance of light received from an optical transmitterby the optical receiveris equal to or lower than an illuminance threshold value; and a signal intensity of the electrical signal output by the optical receiveris equal to or lower than an intensity threshold value; an authentication information checking circuitthat checks the authentication information contained in the electrical signal; and a terminal-side RF transmitter/receiverthat transmits the authentication information to a base stationvia RF wireless communication.