US 2019/0376325 A1Published application

System for detecting approach and/or contact of a user and ultra high frequency communication with a portable user apparatus

AssigneesContinental Automotive France, Continental Automotive GmbH

InventorsGrégory SIGUIER, Olivier GERARDIERE, John Jefferson LACKEY, Maxime MICHEAU

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Abstract

Disclosed is a system for detecting approach and/or contact of a user and Ultra High Frequency communication with a portable user apparatus, intended to be embedded on board an automotive vehicle, the system including: a device for detecting approach and/or contact, including a sensor for detecting approach and/or contact and an electronic control unit; a conducting metal surface, suitable for the conduction of electric charges; and a communication device, including an Ultra High Frequency antenna emitting an electromagnetic field at an Ultra High Frequency wavelength, and a management unit for managing the emission and reception of data of the antenna. The conducting metal surface takes the form of a continuous path including a plurality of meanders spread over a length at least equal to: L=λ/6 wherein L is a total length of the meanders, and λ is a wavelength of the Ultra High Frequency antenna.

Claims20

Dependent claims

A system (20) for detecting approach and/or contact of a user and Ultra High Frequency communication with a portable user apparatus, intended to be embedded on board an automotive vehicle, said system comprising:

a device for detecting approach and/or contact, comprising a sensor for detecting approach and/or contact and an electronic control unit (61),
a conducting metal surface (60), suitable for the conduction of electric charges,
a communication device, comprising an Ultra High Frequency antenna (50) emitting an electromagnetic field at an Ultra High Frequency wavelength (A), and a management unit (51) for managing the emission and reception of data of said antenna, the presence of this conducting metal surface disturbing the operation of the Ultra High Frequency antenna (50) and rendering the Ultra High Frequency communication inoperative in certain zones Zj around the system (20),
wherein the conducting metal surface (60) takes the form of a continuous path comprising a plurality of meanders (M) spread over a length (L) at least equal to:
L=λ/6
with:
L total length of the meanders,
λ:
wavelength of the Ultra High Frequency antenna.

6 more elements

Dependencies are inferred from the claim text.

Facts

Application: 16/431,923Filed 5 Jun 2019
Priority: FR 18551026 Jun 2018
Published: 12 Dec 2019
Term ends: Not estimatedThe source records don’t support an estimate.

Classification21 codes

E05B 81/77
Detection of handle operation; Detection of a user approaching a handle; Electrical switching actions performed by door handles: comprising…
H01Q 1/3241
Particular used as part of a sensor or in a security system, e.g. for automotive radar, navigation systems: particular used in keyless entry systems
E05B 81/78
Detection of handle operation; Detection of a user approaching a handle; Electrical switching actions performed by door handles: as part of a…
G07C 9/00309
Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers…:…

Family

US 11,414,901 B2Related patent
US 2019/0376325 A1This patent

From the US filing history. Foreign family members aren’t listed.

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