EP 0439724 B2 19970416 - Autonomous radio-controlled clock
Title (en)
Autonomous radio-controlled clock
Title (de)
Autonome Funkuhr
Title (fr)
Horloge radio-pilotée autonome
Publication
Application
Priority
DE 9000899 U 19900127
Abstract (en)
[origin: US5144599A] An autonomous radio timepiece comprises a casing and a bracelet attached thereto. The casing includes an operating circuit, while the bracelet carries a flexible antenna. The antenna can be removed from the bracelet in the event that the bracelet is worn and must be discarded. The antenna carries a plug-in type connector at one end which is adapted to make a tight sealing connection with the casing, and is also adapted to electrically connect the antenna with the circuit of the casing. The circuit within the casing includes a receiver which is fixedly tuned as a function of the antenna inductivity of a foil core to the time message transmitter. Also provided is a variable automatic supplemental tuner to compensate for bending of the bracelet while the receiver is actuated. The antenna comprises a foil of an insulting material on which an antenna conductor is printed, along with two shielding conductors extending parallel to the antenna conductor.
IPC 1-7
IPC 8 full level
G04B 47/02 (2006.01); G04G 1/00 (2006.01); G04G 1/06 (2006.01); G04G 21/04 (2013.01); G04G 99/00 (2010.01); H01Q 1/27 (2006.01)
CPC (source: EP US)
G04G 21/04 (2013.01 - EP US); G04R 60/04 (2013.01 - EP US); H01Q 1/273 (2013.01 - EP US)
Designated contracting state (EPC)
CH DE ES FR GB IT LI
DOCDB simple family (publication)
DE 9000899 U1 19910523; DE 59004924 D1 19940414; EP 0439724 A2 19910807; EP 0439724 A3 19920122; EP 0439724 B1 19940309; EP 0439724 B2 19970416; ES 2051441 T3 19940616; HK 118294 A 19941104; US 5144599 A 19920901
DOCDB simple family (application)
DE 9000899 U 19900127; DE 59004924 T 19901204; EP 90123144 A 19901204; ES 90123144 T 19901204; HK 118294 A 19941027; US 63569290 A 19901228