CPC Subclass Not Allocatable
G04G ELECTRONIC TIME-PIECES
Description
G04G covers electronic timekeeping devices and systems that employ electronic circuits or components to measure, indicate, or regulate time. This includes digital and analog electronic clocks, watches, chronometers, and timing apparatus utilizing quartz oscillators, microprocessors, or other electronic timing mechanisms. The classification encompasses both the timekeeping circuitry and integrated display technologies (such as LED or LCD), as well as associated features like alarms, calendars, and time synchronization functions. Mechanical timekeeping devices without electronic components fall outside this scope and are classified under G04B.
11 direct subcodes
Child Classifications
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- G04G 11/00 Producing optical signals at preselected times
- G04G 13/00 Producing acoustic time signals
- G04G 15/00 Time-pieces comprising means to be operated at preselected times or after preselected time intervals (G04G11/00, G04G13/00 take precedence; ; pulse delay circuits H03K5/13; electronic time-delay switches H03K17/28; electronic time-programme switches which automatically terminate their operation after the programme is completed H03K17/296)
- G04G 17/00 Structural details; Housings (constructional details of radio-controlled time-pieces, e.g. antennas G04R60/00)
- G04G 19/00 Electric power supply circuits specially adapted for use in electronic time-pieces
- G04G 21/00 Input or output devices integrated in time-pieces
- G04G 3/00 Producing timing pulses (driving circuits for stepping motors G04C3/14; producing preselected time intervals for use as timing standards G04F5/00; pulse technique in general H03K; control, synchronisation, or stabilisation of generators in general H03L)
- G04G 5/00 Setting, i.e. correcting or changing, the time-indication (radio-controlled time-pieces G04R)
- G04G 7/00 Synchronisation (radio-controlled time-pieces G04R)
- G04G 9/00 Visual time or date indication means
- G04G 99/00 Subject matter not provided for in other groups of this subclass