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. 03, 2025
Filed:
Dec. 22, 2023
Impinj, Inc., Seattle, WA (US);
John D. Hyde, Corvallis, OR (US);
Shailendra Srinivas, Seattle, WA (US);
Jay Kuhn, Seattle, WA (US);
Ronald A Oliver, Seattle, WA (US);
Harley Heinrich, Snohomish, WA (US);
Theron Stanford, Seattle, WA (US);
Christopher J. Diorio, Shoreline, WA (US);
Impinj, Inc., Seattle, WA (US);
Abstract
An RFID IC may operate at a relatively low clock frequency while impedance matching to an antenna is being tuned to increase the amount of power that the IC can extract from an incident RF wave. A tuning circuit tunes the impedance matching by adjusting a variable impedance coupling the IC and the antenna. The IC may power-up with a low clock frequency or reduce its current clock frequency to a lower clock frequency prior to tuning or during the tuning process, and may increase its clock frequency upon completion of tuning or during the tuning process.