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:
Dec. 27, 2005
Filed:
Dec. 15, 1999
Dale Lee Yones, Boulder, CO (US);
Dale Lee Yones, Boulder, CO (US);
The Goodyear Tire & Rubber Company, Akron, OH (US);
Abstract
A power-on reset for a transponder () capable of measuring one or more parameters (e.g., temperature, pressure) in an object (e.g., a tire,) and transmitting a data stream (FIGS.C,B) to an external reader/interrogator (). The transponder typically operates in a passive mode, deriving its power (Vxx, Vcc, Vdd) from an RF interrogation signal received by an antenna system (), but can also operate in a battery-powered active mode. The transponder includes memory () for storing measurements, calibration data, programmable trim settings (), transponder ID and the like. A power-on reset circuit () prevents operation of the transponder until it is stable, and starts transmission of the data stream at a first bit of the data stream, in order to ensure a first-pass transmission of a complete data stream. It also prevents modulation of the antenna system for data stream transmission if the power levels are too low for stable transponder operation during modulation.