EP 0042913 B1 19860917 - PROCESS FOR THE AUTOMATIC SETTING OF RADIO CLOCKS AIDED BY TIME SIGNALS
Title (en)
PROCESS FOR THE AUTOMATIC SETTING OF RADIO CLOCKS AIDED BY TIME SIGNALS
Publication
Application
Priority
DE 3022949 A 19800619
Abstract (en)
[origin: US4440501A] A time measuring method is combined with an automatic rate correction process in a digital or quasianalog clock; a clock rate deviation is repeatedly measured, in a predetermined lock-in-range, derived from the clock oscillator frequency, by means of a time mark received from a transmitter; the deviation data are stored and used for correcting the clock rate and the oscillator frequency whereby the stored data are maintained until the arrival of the next time mark.
IPC 1-7
IPC 8 full level
G04G 7/00 (2006.01); G04G 5/00 (2013.01); G04G 7/02 (2006.01); G04R 20/22 (2013.01); G04R 40/06 (2013.01)
CPC (source: EP US)
G04R 20/22 (2013.01 - EP US); G04R 40/06 (2013.01 - EP US)
Citation (examination)
- DE 1773406 B2 19760826
- Elektor 1974, S.7-79, 7-80
- Funkschau 1979, H 26, S. 1527-1531
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI LU NL SE
DOCDB simple family (publication)
EP 0042913 A2 19820106; EP 0042913 A3 19820120; EP 0042913 B1 19860917; DE 3022949 A1 19811224; DE 3022949 C2 19831117; DE 3175319 D1 19861023; JP S5735780 A 19820226; US 4440501 A 19840403
DOCDB simple family (application)
EP 81102235 A 19810325; DE 3022949 A 19800619; DE 3175319 T 19810325; JP 9407681 A 19810619; US 27255981 A 19810611