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:
Mar. 16, 1999
Filed:
Aug. 29, 1997
Sung Jin Jo, Gilbert, AZ (US);
Chee Seong Chua, Singapore, SG;
Motorola, Inc., Schaumburg, IL (US);
Abstract
Remote energy transmitting circuits 30, 35, 36, 37 sequentially transmit a first RF signal when activated by the controller 60. A remote unit 14 in the tire receives the first RF signal, and when the pressure in the tire is greater than a predetermined pressure, the remote unit 14 transmits a second RF signal. Via the remote receiver 20, the controller 60 determines whether the second RF signal is received within a predetermined time after transmitting the first RF signal. When the second RF signal is not received within the predetermined time, the controller 60 assumes a pressure detection failure and causes a display to indicate this condition.