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.

Date of Patent:
Oct. 01, 2019

Filed:

Sep. 26, 2017
Applicants:

Naoyuki Ishihara, Aichi, JP;

Yosuke Tomita, Aichi, JP;

Tetsuo Nishidai, Aichi, JP;

Takahiro Inaguma, Aichi, JP;

Kazuya Hamada, Aichi, JP;

Hirofumi Ohata, Aichi, JP;

Inventors:

Naoyuki Ishihara, Aichi, JP;

Yosuke Tomita, Aichi, JP;

Tetsuo Nishidai, Aichi, JP;

Takahiro Inaguma, Aichi, JP;

Kazuya Hamada, Aichi, JP;

Hirofumi Ohata, Aichi, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G07C 9/00 (2006.01); G08C 17/02 (2006.01); H04W 12/06 (2009.01);
U.S. Cl.
CPC ...
G07C 9/00309 (2013.01); G08C 17/02 (2013.01); H04W 12/06 (2013.01); B60R 2325/105 (2013.01); B60R 2325/202 (2013.01); G07C 2009/00357 (2013.01); G07C 2009/00555 (2013.01);
Abstract

A vehicle communication system includes a vehicle-mounted device and a portable device. In the vehicle communication system, a transmission unit transmits a first to third radio signals having intensities weaker in this order, a measurement unit measures an intensity of each of the radio signals, and a determination unit that determines whether an intensity difference between any two of the radio signals among the radio signals measured by the measurement unit is larger than a threshold value. Control of a target mounted on the vehicle is permitted if the intensity difference is larger than the threshold value.


Find Patent Forward Citations

Loading…