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1. WO2020072133 - SYSTEMS AND METHODS FOR DEVICE COEXISTENCE

Publication Number WO/2020/072133
Publication Date 09.04.2020
International Application No. PCT/US2019/046638
International Filing Date 15.08.2019
IPC
H04B 5/00 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
5Near-field transmission systems, e.g. inductive loop type
CPC
G06K 7/10059
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
KRECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
7Methods or arrangements for sensing record carriers, ; e.g. for reading patterns
10by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
10009sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves
10019resolving collision on the communication channels between simultaneously or concurrently interrogated record carriers.
10029the collision being resolved in the time domain, e.g. using binary tree search or RFID responses allocated to a random time slot
10059transponder driven
G06K 7/10227
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
KRECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
7Methods or arrangements for sensing record carriers, ; e.g. for reading patterns
10by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
10009sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves
10198setting parameters for the interrogator, e.g. programming parameters and operating modes
10227loading programming parameters or programs into the interrogator, e.g. for configuring the interrogator
H04B 5/0031
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
5Near-field transmission systems, e.g. inductive loop type
0025Near field system adaptations
0031for data transfer
H04B 5/0037
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
5Near-field transmission systems, e.g. inductive loop type
0025Near field system adaptations
0037for power transfer
H04B 5/0056
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
5Near-field transmission systems, e.g. inductive loop type
0056for use in interrogation, identification or read/write systems
Applicants
  • QUALCOMM INCORPORATED [US]/[US]
Inventors
  • HILLAN, John
Agents
  • AUSTIN, Wesley L.
Priority Data
16/273,02611.02.2019US
62/739,65201.10.2018US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) SYSTEMS AND METHODS FOR DEVICE COEXISTENCE
(FR) SYSTÈMES ET PROCÉDÉS DE COEXISTENCE DE DISPOSITIF
Abstract
(EN)
A near-field communication (NFC) device is described. The NFC device includes an antenna configured to radiate an electromagnetic field. The NFC device also includes electronic circuitry coupled to the antenna. The electronic circuitry is configured to receive first data from a unidirectional tag device within a transmission limit. The electronic circuitry is also configured to receive second data from at least one bidirectional tag device after the transmission limit.
(FR)
L'invention concerne un dispositif de communication en champ proche (NFC). Le dispositif NFC comprend une antenne configurée pour émettre un champ électromagnétique. Le dispositif NFC comprend également un montage de circuits électroniques couplés à l'antenne. Le montage de circuits électroniques est configuré pour recevoir des premières données, d'un dispositif de balisage unidirectionnel, dans une limite de transmission. Le montage de circuits électroniques est également configuré pour recevoir des secondes données, d'au moins un dispositif de balisage bidirectionnel, au-delà de la limite de transmission.
Also published as
Latest bibliographic data on file with the International Bureau