Patents
Patents for G04C 21 - Producing acoustic time signals by electrical means (1,026)
09/2006
09/13/2006CN2816862Y Interferrence-free alarm clock
09/12/2006US7106660 Sun dial and method for determining average sunlight
09/06/2006CN2814470Y mp3闹钟 mp3 alarm clock
08/2006
08/24/2006DE102005000982B4 Uhr und Verfahren zur Steuerung eines Elements an der Uhr Clock and method for controlling an element to the clock
08/23/2006CN1271478C Musical scale sounding device and time signal clock
08/10/2006US20060176779 Single day alarm clock
07/2006
07/20/2006DE102005000982A1 Clock with display device has panel which is opened by ejection-switch and sensor which controls ejection switch only on allowable threshold value
07/05/2006CN2793783Y Clock with simple movement
06/2006
06/29/2006US20060140063 Method for optimizing mode sequencing in a multimode electronic device
06/28/2006CN2791709Y Voice-imitation promptor
06/20/2006US7065005 Timepiece such as a wristwatch including an alarm mechanism
06/15/2006US20060126444 Watch for dispensing scents, vapor and/or droplets, and storage device
06/14/2006CN2788232Y Voice-controlled time-declaring clock
06/01/2006US20060114751 Water-resistant portable apparatus comprising an electroacoustic transducer
05/2006
05/24/2006DE102004037377B3 Hörhilfegerätesystem Hearing aid
05/23/2006US7050360 Wrist watch with vibration function
05/03/2006CN1768309A Reversible watch
04/2006
04/25/2006US7035169 Event planner timepiece
04/13/2006US20060077763 Electronic device and method for enhancing usability of electronic device
04/06/2006DE202004018615U1 Sleep machine, has alarm clock, memory device for storing data of individual heart rhythm sample, adjusting device for adjusting heart beat monitors and output device for outputting audio signals
04/05/2006CN2769963Y Multifunction hand type quartzcrystal clock
04/04/2006US7021819 Timepiece including a striking work
03/2006
03/30/2006US20060067165 Time alarm
03/23/2006US20060062086 Enhanced control buttons for digital timepieces
03/16/2006DE202005019948U1 Alarm clock, has clock work that moves strike hammer from its resting position to top dead center of its hanging axis, where minute hand of clock work releases hammer, and stopper stops hammer in its tense position
03/01/2006CN2762193Y Voice urine wetting alarm capable of used as clock
02/2006
02/22/2006CN2760618Y Quartz alarm clock machine core
02/16/2006WO2006017001A2 Memento timepiece systems
01/2006
01/26/2006US20060018202 Reversible watch
01/26/2006US20060017559 Enhanced fire, safety, security and health monitoring and alarm response method, system and device
01/25/2006CN2754129Y Chip-programmed voice-rotary-disk table clock
01/17/2006US6987710 Alarm clock with dial illumination
01/12/2006US20060007788 Memento timepiece systems
12/2005
12/28/2005EP1609027A2 Reversible watch
12/22/2005DE19543586B4 Funkuhr mit analoger Zeitanzeige Radio controlled clock with analogue time display
12/07/2005CN2745091Y Quartz alarm watch taking watch crown as alarm switch
11/2005
11/24/2005DE202005010184U1 Cuckoo clock has mechanical drive controlling low voltage electrical units through contactless switch
11/22/2005US6967902 Voice feedback timer system
11/17/2005DE202005010886U1 Time indication device e.g. wrist watch, for use by hunter, has phosphorescent area, hour and minute needles to indicate time, and needle to indicate information and/or indications that are correlated with sun rise and/or sun set time
11/10/2005US20050249048 Childhood time-keeping device with parental control
11/01/2005US6961288 Sound-scale generation device and time-announcing clock
10/2005
10/27/2005US20050237860 Shofar Timekeeping Apparatus and Method
10/12/2005EP1584001A1 Portable tight device with an electro-acoustic transducer
10/12/2005EP0860757B1 Electronic timepiece
09/2005
09/28/2005CN1673906A Clock with simple movement and its using method
09/21/2005CN2727820Y 一种电子闹钟 An electronic alarm clock
09/15/2005DE102004006803A1 Alarm with presence detector for preventing falling asleep again has presence detector that can be activated by operating stop switch in order to trigger waking signal on detecting presence of person within defined area
09/01/2005US20050190654 Single day alarm clock
08/2005
08/27/2005CA2497088A1 Single day alarm clock
08/04/2005US20050169112 Portable type electronic device having sounding function
08/03/2005CN1648796A Portable type electronic device having sounding function
07/2005
07/20/2005CN2711780Y Electronic silencing clock with alarm
07/20/2005CN1641496A Timekeeping apparatus
07/14/2005US20050152223 Timekeeping apparatus
07/13/2005CA2491369A1 Timekeeping apparatus
06/2005
06/21/2005US6909672 Time-to-voltage converter
06/08/2005CN1205517C Method and system of self renewing appointment display of intelligent watch
06/02/2005WO2004088436A3 Reversible watch
05/2005
05/26/2005US20050111305 Clock-driving device combined with a conventional core
05/24/2005US6898154 Clock-driving device combined with a conventional core
05/24/2005US6898153 Musical circle of fifths clock
05/12/2005US20050099893 Alarm in electronic device
05/10/2005US6891778 Watch with rotating conical bands and with removable objects
05/04/2005DE19824274B4 Wecker-Uhr Alarm Clock Clock
04/2005
04/14/2005US20050078560 Event planner timepiece
04/06/2005CN1605049A Radio clockwork mechanism having a detector for setting the clock hands
02/2005
02/02/2005CN1187661C Device capable immersing and containing sound transducer
01/2005
01/13/2005DE10161854B4 Funkuhrwerk mit Detektor für die Zeigerstellung Radio movement detector with the pointer position
01/06/2005US20050002278 Radio clockwork mechanism having a detector for setting the clock hands
12/2004
12/22/2004CN2665767Y Mute chronopher
12/15/2004CN2664036Y Periodical alarm clock
11/2004
11/10/2004CN2655306Y Alarm starting device for alarm clock movement
10/2004
10/14/2004WO2004088436A2 Reversible watch
09/2004
09/22/2004CN2643359Y Pointer type quartz electronic time-signaling alarm clock
09/15/2004EP1456719A1 Radio clockwork mechanism having a detector for setting the clock hands
09/01/2004CN2636930Y Game controller with alarm clcok prompting function
09/01/2004CN1525268A Alarm clock capable of uploading ring or music and method thereof
08/2004
08/05/2004WO2004066041A1 Portable tight device with an electro-acoustic transducer
07/2004
07/29/2004US20040144240 Sound-scale generation device and time-announcing clock
07/21/2004CN1514314A Generation changing type excellent mechanical clock
07/21/2004CN1514313A Musical scale sounding device and time signal clock
07/14/2004CN1157994C Water-proof device with sound energy convertor capable of immersing
04/2004
04/28/2004CN1147763C Large electromechanical pointer clock
04/14/2004CN2611949Y Timer having speech recording and speech indicating device
04/07/2004CN1487379A Event design chronometer
03/2004
03/25/2004US20040056202 Time-to-voltage converter
03/04/2004US20040042348 Timepiece such as a wrist-watch including an alarm mechanism
03/03/2004EP1394637A1 Timepiece, in particular wristwatch, comprising an alarm mechanism
02/2004
02/04/2004CN1137452C Acoustic alarm safety device and timing device therewith
01/2004
01/21/2004CN1135453C Alarm clock
12/2003
12/03/2003CN2590048Y Improved electronic alarm clock
12/03/2003CN2590047Y Movement of small volume quartz clock having easily adjustable alarm
12/02/2003US6657923 Slot machine alarm clock apparatus and method
11/2003
11/19/2003CN2586995Y Automatic adjusting clock
11/05/2003CN1453668A Multifunctional musical time control device
11/05/2003CN1127003C Clock movement with time zone display
10/2003
10/28/2003US6639874 Pointer electronic timepiece, operating method and control program thereof
10/21/2003US6636457 Clock movement with a display for world time zones
10/02/2003DE20310007U1 Wrist watch or pocket watch with a cuckoo clock function
08/2003
08/20/2003CN1118728C Striking device of clock and watch
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