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:
Oct. 28, 2025
Filed:
May. 18, 2023
Applicant:
Analog Devices, Inc., Wilmington, MA (US);
Inventors:
Harvey Weinberg, Sharon, MA (US);
Tze Lei Poo, Cambridge, MA (US);
Tao Yu, Cambridge, MA (US);
Eugene Oh Hwang, Sherman Oaks, CA (US);
Assignee:
Analog Devices, Inc., Wilmington, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G08B 21/00 (2006.01); B60R 25/24 (2013.01); G06K 19/067 (2006.01);
U.S. Cl.
CPC ...
B60R 25/246 (2013.01); G06K 19/0675 (2013.01); B60R 2325/205 (2013.01);
Abstract
Remote keyless entry (RKE) systems and devices are described. The RKE devices include one or more passive radios that respond to an interrogation signal from an interrogating device such as a vehicle. The passive radio sends a responsive signal that can include a decaying portion representing a ringdown signal. The passive radio includes a SAW resonator in some situations.