| 3/00 | Producing timing pulses (driving circuits for stepping motors G04C 3/14; producing preselected time intervals for use as timing standards G04F 5/00; pulse technique in general H03K; control, synchronisation, or stabilisation of generators in general H03L) |
| 3/02 | Producing timing pulses (driving circuits for stepping motors G04C 3/14; producing preselected time intervals for use as timing standards G04F 5/00; pulse technique in general H03K; control, synchronisation, or stabilisation of generators in general H03L) Circuits for deriving low frequency timing pulses from pulses of higher frequency (pulse frequency dividers in general H03K 23/00-H03K 29/00) |
| 3/04 | Producing timing pulses (driving circuits for stepping motors G04C 3/14; producing preselected time intervals for use as timing standards G04F 5/00; pulse technique in general H03K; control, synchronisation, or stabilisation of generators in general H03L) Temperature-compensating arrangements |
| 5/00 | Setting, i.e. correcting or changing, the time-indication |
| 5/02 | Setting, i.e. correcting or changing, the time-indication by temporarily changing the number of pulses per unit time, e.g. quick-feed method |
| 5/04 | Setting, i.e. correcting or changing, the time-indication by setting each of the displayed values, e.g. date, hour, independently |
| 7/00 | Synchronisation |
| 7/02 | Synchronisation by radio |
| 9/00 | Visual time or date indication means |
| 9/02 | Visual time or date indication means by selecting desired characters out of a number of characters or by selecting indicating elements the position of which represent the time, e.g. by using multiplexing techniques |
| 9/04 | Visual time or date indication means by selecting desired characters out of a number of characters or by selecting indicating elements the position of which represent the time, e.g. by using multiplexing techniques by controlling light sources, e.g. electroluminescent diodes |
| 9/06 | Visual time or date indication means by selecting desired characters out of a number of characters or by selecting indicating elements the position of which represent the time, e.g. by using multiplexing techniques using light valves, e.g. liquid crystals |
| 9/08 | Visual time or date indication means by building-up characters using a combination of indicating elements, e.g. by using multiplexing techniques |
| 9/10 | Visual time or date indication means by building-up characters using a combination of indicating elements, e.g. by using multiplexing techniques by controlling light sources, e.g. electroluminescent diodes |
| 9/12 | Visual time or date indication means by building-up characters using a combination of indicating elements, e.g. by using multiplexing techniques using light valves, e.g. liquid crystals |
| 11/00 | Producing optical signals at preselected times |
| 13/00 | Producing acoustic time signals |
| 13/02 | Producing acoustic time signals at preselected times, e.g. alarm clocks |
| 15/00 | Time-pieces comprising means to be operated at preselected times or after preselected time intervals (G04G 11/00, G04G 13/00 take precedence; pulse delay circuits H03K 5/13; electronic time-delay switches H03K 17/28; electronic time-programme switches which automatically terminate their operation after the programme is completed H03K 17/296; time programming for television signal recording H04N 5/761) |
| 17/00 | Structural details; Housings |