EP 1612884 B1 20081015 - Interconnection circuit between two loop antennas embedded in a wristband of a wrist-carried wireless instrument
Title (en)
Interconnection circuit between two loop antennas embedded in a wristband of a wrist-carried wireless instrument
Title (de)
Verbindungschaltung zwischen zwei Schleifenantennen integriert in einem Armband am Handgelenk zu tragendes drahtloses Gerät
Title (fr)
Circuit de connexion entre deux antennes à boucles integrées dans un bracelet d'un instrument sans fils porté au poignet
Publication
Application
Priority
EP 04103146 A 20040702
Abstract (en)
[origin: EP1612884A1] The invention relates to a wireless instrument (1) comprising a wristband (2) having a first (2a) and a second (2b) band portions connected to opposite edges of a casing (3), each of the first and second band portions having upper and lower surfaces. A first (4a) and a second (4b) loop antennas are embedded respectively in the first and second band portions and extend between the corresponding upper and lower surfaces, both loop antennas being connected through the opposite edges of the casing to a first (5a) and a second (5b) tuning circuits, the first and second tuning circuits are connected to an antenna receiver (6) arranged in said casing and together in a hybrid manner via an interconnection circuit (7), both tuning circuits being connected partially in parallel and partially in series.
IPC 8 full level
H01Q 1/27 (2006.01); G04G 21/04 (2013.01)
CPC (source: EP KR)
H01Q 1/24 (2013.01 - KR); H01Q 1/273 (2013.01 - EP); H01Q 7/005 (2013.01 - EP); H01Q 21/28 (2013.01 - EP)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
EP 1612884 A1 20060104; EP 1612884 B1 20081015; AT E411631 T1 20081015; CN 1716691 A 20060104; CN 1716691 B 20110601; DE 602004017150 D1 20081127; HK 1086951 A1 20060929; JP 2006020303 A 20060119; JP 4644534 B2 20110302; KR 101180206 B1 20120905; KR 20060049406 A 20060518; SG 118435 A1 20060127; TW 200616276 A 20060516; TW I360915 B 20120321
DOCDB simple family (application)
EP 04103146 A 20040702; AT 04103146 T 20040702; CN 200510079781 A 20050628; DE 602004017150 T 20040702; HK 06106895 A 20060616; JP 2005179031 A 20050620; KR 20050052707 A 20050618; SG 200504843 A 20050627; TW 94120028 A 20050616