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:
Aug. 12, 2025
Filed:
Oct. 07, 2021
Bridgestone Corporation, Tokyo, JP;
Hiromitsu Ichikawa, Tokyo, JP;
Hajime Fukumori, Tokyo, JP;
BRIDGESTONE CORPORATION, Tokyo, JP;
Abstract
A tire air pressure monitoring system includes: a data acquisition unit that acquires tire air pressure data at each fixed detection period; a storage unit that stores newly acquired air pressure data P(), and air pressure data P() to P(N) acquired 1 to N periods prior to the air pressure data P(); a determination unit that determines a state in which air pressure has decreased, on the basis of air pressure data; and a communication unit that transmits a determination result of the determination unit to an external device, in which the determination unit compares each piece of the air pressure data P() to P(n) with the air pressure data P() to calculate decrease values, compares the decrease values with a preset first threshold value (th), and determines that tire air pressure is decreasing when at least one decrease value is greater than or equal to the first threshold value.