Antenna switching control for AOA capturing in phone-as-a-key systems with de-whitened tone transmission, CRC based validation and event timing

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12221067
APP PUB NO 20240227732A1
SERIAL NO

18614309

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A reader includes a transceiver and a control module. The transceiver is configured to, during a current connection event, monitor notification messages transmitted from a portable access device to a phone-as-a-key (PaaK) system of a vehicle, where the notification messages are transmitted to establish a communication link between the portable access device and the PaaK system. The control module is configured to: perform an in-phase and quadrature phase capture of the notification messages based on fields in one or more of the notification messages, where the fields include a mobile de-whitened section including two or more series of consecutive bits, where the consecutive bits in each of the one or more series are all zeros or all ones; based on the in-phase and quadrature phase capture, determine an angle-of-arrival of the notification messages, and indicate the angle-of-arrival to the PaaK system for permitted access determined by the PaaK system.

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Patent Owner(s)

  • DENSO INTERNATIONAL AMERICA, INC.; DENSO CORPORATION

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Stitt, Raymond Michael Ada, US 54 609

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