Processing

Please wait...

Settings

Settings

Goto Application

1. WO2012065781 - ELECTRONIC CIRCUIT ARRANGEMENT FOR RECEIVING LOW FREQUENCY ELECTRO-MAGNETIC WAVES WITH AN ADJUSTABLE ATTENUATOR ELEMENT

Publication Number WO/2012/065781
Publication Date 24.05.2012
International Application No. PCT/EP2011/067018
International Filing Date 29.09.2011
IPC
G06K 7/00 2006.01
GPHYSICS
06COMPUTING; CALCULATING OR COUNTING
KRECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
7Methods or arrangements for sensing record carriers
G06K 19/077 2006.01
GPHYSICS
06COMPUTING; CALCULATING OR COUNTING
KRECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
19Record carriers for use with machines and with at least a part designed to carry digital markings
06characterised by the kind of the digital marking, e.g. shape, nature, code
067Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards
07with integrated circuit chips
077Constructional details, e.g. mounting of circuits in the carrier
CPC
G06K 19/0715
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
KRECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
19Record carriers for use with machines and with at least a part designed to carry digital markings
06characterised by the kind of the digital marking, e.g. shape, nature, code
067Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards ; also with resonating or responding marks without active components
07with integrated circuit chips
0701at least one of the integrated circuit chips comprising an arrangement for power management
0715the arrangement including means to regulate power transfer to the integrated circuit
G06K 19/07749
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
KRECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
19Record carriers for use with machines and with at least a part designed to carry digital markings
06characterised by the kind of the digital marking, e.g. shape, nature, code
067Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards ; also with resonating or responding marks without active components
07with integrated circuit chips
077Constructional details, e.g. mounting of circuits in the carrier
07749the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card
G06K 7/0008
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
0008General problems related to the reading of electronic memory record carriers, independent of its reading method, e.g. power transfer
H03G 3/22
HELECTRICITY
03BASIC ELECTRONIC CIRCUITRY
GCONTROL OF AMPLIFICATION
3Gain control in amplifiers or frequency changers ; without distortion of the input signal
20Automatic control
22in amplifiers having discharge tubes
H04B 1/12
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
1Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
06Receivers
10Means associated with receiver for limiting or suppressing noise or interference ; induced by transmission
12Neutralising, balancing, or compensation arrangements
H04B 7/0871
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
7Radio transmission systems, i.e. using radiation field
02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
04using two or more spaced independent antennas
08at the receiving station
0868Hybrid systems, i.e. switching and combining
0871using different reception schemes, at least one of them being a diversity reception scheme
Applicants
  • MAXIM INTEGRATED GMBH [AT]/[AT] (AllExceptUS)
  • AKBARI-DILMAGHANI, Rahim [GB]/[AT] (UsOnly)
Inventors
  • AKBARI-DILMAGHANI, Rahim
Agents
  • BERGMEIER, Werner
Priority Data
10 2010 044 028.017.11.2010DE
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) ELECTRONIC CIRCUIT ARRANGEMENT FOR RECEIVING LOW FREQUENCY ELECTRO-MAGNETIC WAVES WITH AN ADJUSTABLE ATTENUATOR ELEMENT
(FR) AGENCEMENT DE CIRCUIT ÉLECTRONIQUE DESTINÉ À RECEVOIR DES ONDES ÉLECTROMAGNÉTIQUES BASSE FRÉQUENCE COMPORTANT UN ÉLÉMENT ATTÉNUATEUR AJUSTABLE
Abstract
(EN)
An electronic circuit arrangement for receiving low-frequency electromagnetic waves is proposed, having an inductor (L) acting as an antenna for generating a received signal, having a first receiver (2), connected to the inductor (L), for decoding a first component of the received signal and having a second receiver (3), connected to the inductor (L), for decoding a second component of the received signal, wherein at least the second receiver (3) is connected to the inductor (L) via an attenuator element (4) having adjustable attenuation, wherein at least one adjustment signal generation circuit (5; 6) is provided for generating an adjustment signal corresponding to a voltage of the received signal which is fed to the attenuator element (4) for adjusting the attenuation.
(FR)
L'invention porte sur un agencement de circuit électronique destiné à recevoir des ondes électromagnétiques basse fréquence, lequel agencement comprend une inductance (L) jouant le rôle d'antenne pour générer un signal reçu, un premier récepteur (2), connecté à l'inductance (L), pour décoder une première composante du signal reçu, et un second récepteur (3), connecté à l'inductance (L), pour décoder une seconde composante du signal reçu. Au moins le second récepteur (3) est connecté à l'inductance (L) par l'intermédiaire d'un élément atténuateur (4) à atténuation ajustable. Au moins un circuit de génération de signal d'ajustement (5; 6) est utilisé pour générer un signal d'ajustement correspondant à une tension du signal reçu qui est appliquée à l'élément atténuateur (4) pour ajuster son atténuation.
Latest bibliographic data on file with the International Bureau