EP3799252 MAGNETIC ALIGNMENT SYSTEMS WITH NFC FOR ELECTRONIC DEVICES

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European Patent Office

Application Number 20198834

Application Date 28.09.2020

Publication Number 3799252

Publication Date 31.03.2021

Publication Kind A1

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CPC

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Applicants APPLE INC

Inventors LARSSON KARL RUBEN FREDRICK
ORO AARON A
RASMUSSEN TIMOTHY J
GRAHAM CHRISTOPHER S
JOL ERIC S
WU JAMES C
KARANIKOS DEMETRIOS B
DALY MIRANDA L
THOMPSON PAUL J

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Priority Data 201962907332 27.09.2019 US
202017028256 22.09.2020 US
202063061752 05.08.2020 US

Title

(DE) MAGNETISCHE AUSRICHTUNGSSYSTEME MIT NFC FÜR ELEKTRONISCHE VORRICHTUNGEN

(EN) MAGNETIC ALIGNMENT SYSTEMS WITH NFC FOR ELECTRONIC DEVICES

(FR) SYSTÈMES D'ALIGNEMENT MAGNÉTIQUE AVEC NFC POUR DISPOSITIFS ÉLECTRONIQUES

Abstract

(EN) A magnetic alignment system can include a primary annular magnetic alignment component and a secondary annular magnetic alignment component. The primary alignment component can include an inner annular region having a first magnetic orientation, an outer annular region having a second magnetic orientation opposite to the first magnetic orientation, and a non-magnetized central annular region disposed between the primary inner annular region and the primary outer annular region. The secondary alignment component can have a magnetic orientation with a radial component. Additional features, such as a rotational magnetic alignment component and/or an NFC coil and circuitry can be included.

H	ELECTRICITY
02	GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
J	CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
7	Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries

H	ELECTRICITY
02	GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
J	CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
50	Circuit arrangements or systems for wireless supply or distribution of electric power

H	ELECTRICITY
02	GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
J	CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
50	Circuit arrangements or systems for wireless supply or distribution of electric power
10	using inductive coupling

H	ELECTRICITY
02	GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
J	CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
50	Circuit arrangements or systems for wireless supply or distribution of electric power
90	involving detection or optimisation of position, e.g. alignment

H	ELECTRICITY
04	ELECTRIC COMMUNICATION TECHNIQUE
B	TRANSMISSION
5	Near-field transmission systems, e.g. inductive loop type

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1. EP3799252 - MAGNETIC ALIGNMENT SYSTEMS WITH NFC FOR ELECTRONIC DEVICES

H	ELECTRICITY
02	GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
J	CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
50	Circuit arrangements or systems for wireless supply or distribution of electric power
90	involving detection or optimisation of position, e.g. alignment

G	PHYSICS
06	COMPUTING; CALCULATING; COUNTING
K	RECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
7	Methods or arrangements for sensing record carriers, ; e.g. for reading patterns;
10	by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
10009	sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves
10237	the reader and the record carrier being capable of selectively switching between reader and record carrier appearance, e.g. in near field communication [NFC] devices where the NFC device may function as an RFID reader or as an RFID tag

H	ELECTRICITY
01	BASIC ELECTRIC ELEMENTS
F	MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
38	Adaptations of transformers or inductances for specific applications or functions
14	Inductive couplings