Patent ID: 11904810
Assignee: VALEO COMFORT AND DRIVING ASSISTANCE
Field: Control (Instruments)
Classification: CPC B  G  H | IPC B  H

Claim 0:
1. A system for hands-free access to a vehicle, said hands-free access system comprising:
a hands-free access device of said vehicle configured to:
transmit a location frame, said location frame comprising a modulated signal and a pure carrier signal transmitted during time windows at different time intervals,
receive at least one measurement of a received signal strength of a primary received signal performed on said pure carrier signal by a hands-free identifier, and
receive information on an absence or presence of noise in said location frame, said information being sent by said hands-free identifier,
wherein, depending on said at least one measurement of the received signal strength of a primary received signal and on said information on the absence or presence of noise, authorize or prevent access to said vehicle,

a hands-free identifier configured to:
receive said location frame transmitted by said hands-free access device of said vehicle,
perform at least one measurement of the received signal strength of a primary received signal on said pure carrier signal of said location frame,
send said hands-free access device said at least one measurement of the received signal strength of a primary received signal,
check the presence of noise in said location frame, and
send the hands-free access device information on the absence or presence of noise in said location frame.