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| 2F080 | Alarms and timers for electric clock mechanisms | |
| G04C19/00 -23/50 | ||
| G04C19/00-23/50 | AA | AA00 PURPOSE |
AA01 | AA02 | AA03 | AA04 | AA06 | AA07 | ||||
| . Waterproofing | . Dustproofing | . Checking and testing | . Prevention of malfunction | . Combined use of parts | . Combined use of circuits | |||||||
| BB | BB00 POWER SOURCES |
BB01 | BB02 | BB03 | ||||||||
| . Batteries | . Power-source circuits | . Compensation for power outages | ||||||||||
| CC | CC00 INDICATION |
CC01 | CC02 | CC03 | CC04 | CC05 | CC06 | CC07 | CC08 | CC09 | CC10 | |
| . Optical indication | . . Digital indication | . . Analog indication | . . Changes in the level of brightness and illumination | . . Flashing indication | . Acoustic indication | . . Voice | . Indicator hands or needles | . Number wheels | . . Digital leaf systems (i.e., digital clocks with numbers on hinged plastic sheets) | |||
| CC11 | CC12 | CC13 | CC14 | CC15 | CC16 | CC17 | CC18 | |||||
| . Dial systems | . Indication of printing | . Indication of the alarm or timer status | . Indication of the alarm or timer setting | . Mode indication | . Monitor indication | . Switching of indicators | . Indication of ante meridian (am) and post meridian (pm) | |||||
| DD | DD00 ADDITIONAL FUNCTIONS AND USES |
DD01 | DD02 | DD03 | DD04 | DD05 | DD06 | DD07 | ||||
| . Measurement functions | . Timers | . Consumer products | . . Radios | . . Pillows | . . Illumination devices | . Action clocks | ||||||
| EE | EE00 ACOUSTIC TIME INDICATION, ALARMS, AND TIMER INDICATION |
EE01 | EE02 | EE03 | EE04 | EE05 | EE08 | EE09 | EE10 | |||
| . Kinds of sound-producing elements | . . Bells | . . Electro-magnetic driving | . . . Alternating current motors | . . Piezoelectric elements | . Sound volume adjustment | . Emission through perforations for sound | . Resonance perforations | |||||
| EE11 | EE12 | EE13 | EE14 | EE15 | EE16 | EE18 | EE19 | EE20 | ||||
| . Installation of sound-producing elements | . . Glass covers | . . Back cover | . . Bands | . . Casings | . . . Outside surfaces of casings | . Electric wiring and circuits to sound-producing elements | . . Earphones and headphones | . . Speakers | ||||
| EE21 | EE22 | EE23 | EE24 | EE25 | EE26 | EE27 | EE28 | EE29 | ||||
| . Drive circuits for sound-producing elements | . . Characteristic oscillating circuits | . . . Driving by subharmonic frequency-division output | . Changes in sound quality | . . Frequency | . . Intervals between sounds | . . Sound volume | . . . Decrease in sound level | . . . Increase in sound level | ||||
| EE31 | EE32 | EE33 | EE34 | EE35 | EE36 | EE37 | ||||||
| . Kinds of sound | . . Melodies or bird songs | . . Encoded sound | . . Voice | . . . Recorded voice | . . . . Recording by magnetic means | . . . . . Recording on magnetic tape | ||||||
| EE41 | EE42 | EE44 | EE45 | EE47 | EE49 | |||||||
| . Time and day indication | . . Regular operation except at night | . Selection of different sounds | . . Selection by outside handling means | . Accompaniment by a forecast | . Combination of sound indication and other types of indication | |||||||
| FF | FF00 OTHER FORECAST AND ALARM INDICATIONS |
FF01 | FF02 | |||||||||
| . Optical indication | . Touch indication | |||||||||||
| GG | GG00 SOUND CONTROL |
GG01 | GG02 | GG03 | GG04 | GG05 | GG06 | GG07 | GG08 | GG09 | GG10 | |
| . Control by brain waves | . Ante meridian (am) and post meridian (pm) and day and night control | . Bell-stopping means | . . Mechanical switches | . . . Position switches | . . . Vibration and shock switches | . . Circuit switching | . . . Operating time | . . Auto-stopping | . Snooze-alarm control | |||
| HH | HH00 TIMER CONTROL |
HH01 | HH02 | HH03 | HH04 | HH05 | HH06 | HH07 | HH08 | HH09 | HH10 | |
| . Operation over one time interval | . Operation over a given interval between two points in time | . Operation over multiple time intervals | . Operation of multiple devices | . . Simultaneous operation | . Operation irrespective of time and operation only for set time intervals | . Operation after one day | . Automatic changes in programming | . . Control by external detection means | . Selection of multiple functions | |||
| JJ | JJ00 DETECTION OF TIME |
JJ01 | JJ02 | JJ03 | JJ04 | JJ05 | JJ06 | JJ07 | JJ08 | JJ09 | JJ10 | |
| . Methods of switching | . . Mechanical switches | . . . Two movable connecting chips | . . . One movable connecting chip and one switch pin | . . . One movable connecting chip and one fixed connecting chip | . . . Rotating plates that serve as the connecting point | . . Lead switches | . . Optical switches | . . Code switches | . . Detection by two switches | |||
| JJ11 | JJ12 | JJ13 | JJ14 | JJ15 | ||||||||
| . Switch positioning arrangements | . . Clock hands | . . Number wheels | . . Gears | . . Circuit boards | ||||||||
| JJ21 | JJ22 | JJ23 | JJ24 | JJ25 | JJ26 | JJ27 | JJ28 | JJ30 | ||||
| . Switch operating elements | . . Levers | . . Cams | . . . Number-bearing cams | . . Number carriers (e.g., number wheels) | . . Gears | . . . Movement in the direction of the gear axles | . . Two-step operation | . Use of counter output | ||||
| KK | KK00 TIME ALARM AND TIMER SETTING |
KK01 | KK02 | KK03 | KK04 | KK05 | KK07 | KK09 | ||||
| . Setting members | . . Rotating operating members | . . . Rewinding and rotation of clock hands | . . Pinboards and setting | . . Use of sheets or cards | . Switches | . Pulse setting | ||||||
| KK11 | KK12 | KK13 | KK14 | |||||||||
| . Independent adjustment of set digits | . Hour and minute setting | . Day of the week setting | . Day and month setting | |||||||||
| LL | LL00 TIME, ALARM, TIMER CONTROL, AND CIRCUIT SETTING |
LL01 | LL02 | LL03 | LL04 | LL05 | LL06 | LL07 | LL08 | |||
| . Memory circuits | . . Read only memory (ROM), random access memory (RAM) | . Counters | . . Descending counters | . . . Ascending or descending counters | . . Preset counters | . Comparison circuits | . Central processing unit (CPU) control |