EP 0040655 A1 19811202 - Method and means for automatically setting timepieces in a time zone.
Title (en)
Method and means for automatically setting timepieces in a time zone.
Title (de)
Verfahren und Mittel zum automatischen Einstellen von Uhren in einer Zeitzone.
Title (fr)
Procédé et moyens pour la mise à l'heure automatique d'une montre dans une zone de temps.
Publication
Application
Priority
EP 80301708 A 19800522
Abstract (en)
A timepiece is set by transmission of a time related signal which is received by the timepiece and converted into digital form. The circuit developing signals representing the time displayed by the timepiece is stepped more rapidly than normal and simultaneously compared with the time related signal until they compare at which time the rapid stepping of the timepiece is abruptly terminated and normal stepping of the timepiece is resumed. The carrier may be any supersonic frequency. Setting of the timepiece may be enabled only after operating a time check switch. The above technique may be employed to produce an alarm at a requested time to serve as a memory or wake-up aid, for example.
IPC 1-7
IPC 8 full level
G04G 5/00 (2006.01); G04R 20/00 (2013.01); G04R 40/00 (2013.01)
CPC (source: EP)
G04R 20/26 (2013.01); G04R 40/00 (2013.01)
Citation (search report)
- US 3937004 A 19760210 - NATORI MINORU, et al
- DE 2715096 A1 19781012 - HILBERG WOLFGANG PROF DR ING
- FR 2232006 A1 19741227 - CITIZEN WATCH CO LTD [JP]
- US 4023344 A 19770517 - MUKAIYAMA FUMIAKI
- DE 2643250 A1 19780330 - BRAUN AG
- US 4020628 A 19770503 - VITTOZ ERIC A
- IEEE Transactions on Broadcast and Television Receivers, Vol. BTR-18, No. 4, November 1974, pages 234-237 New York, U.S.A. E.G. BREEZE: "Television line 21 Encoded Information and its Impact on Receiver Design" * page 234, paragraph 1 *
- Jahrbuch der Deutschen Gesellschraft fur Chronometrie E.V., Vol 28, 1977, pages 49-58 Stuttgart, DE. M. SCHLEGEL: "Ein Versuch Mit Kodierter Zeitubertragung Uber UKW - Rundfunksender" * figures 6-8 *
- Radio Mentor Electronic, Vol. 43, No. 7, July 1977, pages 266-270 A. HELLER: "Electronic zum EBU/IRT-Zeitcode-System" * figure *
Designated contracting state (EPC)
CH DE FR GB LI
DOCDB simple family (publication)
DOCDB simple family (application)
EP 80301708 A 19800522