| Patents for G04R 20 - Setting the time according to the time information carried or implied by the radio signal (1,375) |
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| 09/11/2013 | CN103293947A Satellite-ground laser time comparison system |
| 09/04/2013 | CN203178693U Double-memory automatic timing electronic clock |
| 09/04/2013 | CN203178685U 课室时间显示及同步响铃装置 Classroom time display and simultaneous ringing device |
| 09/04/2013 | CN103279026A Beidou satellite-based inter-vehicle time synchronization system |
| 09/04/2013 | CN103278704A Three-dimensional lightning detection system and method based on Beidou |
| 08/28/2013 | CN203164621U Synchronous ground monitoring system |
| 08/28/2013 | CN203164620U High precision time synchronization device |
| 08/28/2013 | CN203164619U Time synchronization device based on multiple signal sources |
| 08/28/2013 | CN203164618U GPS timing apparatus |
| 08/28/2013 | CN103268063A Electronic clock capable of automatically correcting time |
| 08/27/2013 | US8521083 Time synchronization system via two-way interactive wireless communication |
| 08/21/2013 | CN203151515U Intelligent multi-clock-source time synchronizer |
| 08/21/2013 | CN203151477U Communication relay device and precision timing system |
| 08/21/2013 | CN203149306U Beidou GPS dual-mode time service device |
| 08/20/2013 | US8514667 Electronic timepiece and reception control method for an electronic timepiece |
| 08/14/2013 | CN103248333A Piezoelectric vibrating piece, piezoelectric vibrator, oscillator, electronic device, and radio-controlled timepiece |
| 08/14/2013 | CN102281409B Television capable of automatically calibrating time and time calibration method thereof |
| 08/14/2013 | CN101552372B Radio wave receiving device with magnetic drive unit and antenna structure and electronic apparatus using the radio wave receiving device |
| 08/08/2013 | US20130201906 Precise time synchronization of network subscribers |
| 08/07/2013 | CN103235502A Timing device and system for performing automatic time check by using short-distance wireless communication interface |
| 08/07/2013 | CN103235501A Satellite-to-ground timing method by pulse time recording device |
| 08/07/2013 | CN103235500A Satellite time service method and timing device based on beidou |
| 08/07/2013 | CN102023565B Device and method for outputting time information |
| 08/07/2013 | CN101957590B Timepiece with wireless communication function |
| 07/31/2013 | CN203101856U Time synchronization system used for electric power communication |
| 07/31/2013 | CN203101855U Photosensitive alarm clock |
| 07/31/2013 | CN103226324A High-precision time-frequency source capable of being tamed to time-frequency standard in real time |
| 07/31/2013 | CN103226203A Satellite signal reception device, timekeeping device, and satellite signal reception method |
| 07/30/2013 | CA2707119C Time synchronization system and time synchronization method in train |
| 07/24/2013 | CN203086488U Electric power time synchronization system based on big dipper clock |
| 07/24/2013 | CN102339015B Marker detecting apparatus and radio-controlled timepiece |
| 07/16/2013 | US8488417 Time adjustment device, timekeeping device with a time adjustment device, and a time adjustment method |
| 07/11/2013 | US20130176828 Virtual real-time clock based on time information from multiple communication systems |
| 07/10/2013 | CN103199949A Zero base line self-closed-loop satellite and ground time synchronizing method in pseudo global positioning system |
| 07/10/2013 | CN103197535A Method for satellite-ground timing with oscilloscope |
| 07/10/2013 | CN103197534A Time calibration method and device |
| 07/10/2013 | CN102540869B Satellite timing method and device in mobile communication system |
| 07/03/2013 | CN203038018U Time synchronization system |
| 07/03/2013 | CN203038016U Alarm clock avoiding disturbing other people |
| 07/03/2013 | CN203037855U ADS-B timing unit of three systems of GPS/Beidou/GLONASS |
| 06/26/2013 | CN203025488U Domestic electronic chock for transmitting and receiving weather information wirelessly |
| 06/26/2013 | CN103176405A GPS (global positioning system) timing system for products on industrial sewing machine controller production line |
| 06/26/2013 | CN103176404A Time reminding method and time reminding equipment |
| 06/26/2013 | CN101740848B Antenna device, reception device, and radio wave timepiece |
| 06/19/2013 | CN203012386U American radio controlled clock |
| 06/19/2013 | CN203012383U Stopwatch |
| 06/19/2013 | CN203012377U Electronic clock capable of simultaneously displaying digital values and scale values of temperature and humidity |
| 06/19/2013 | CN103163780A Power network global position system (GPS)\big dipper dual system satellite synchronous clock system |
| 06/19/2013 | CN102591194B Intelligent test system and method used for IRIG (Inter-range Instrumentation Group)-B code fault-tolerant function of time synchronizer |
| 06/19/2013 | CN102411147B Unidirectional time-service discipline system and method for Beidou-I satellite system |
| 06/12/2013 | CN202995296U Wireless network optimizing device |
| 06/12/2013 | CN202995291U A watch with a function of short message prompting for incoming calls and a function of wechat pushing |
| 06/12/2013 | CN202995283U Pointer watch displaying motion information through electronic paper and transmitting motion information to cloud |
| 06/12/2013 | CN202994978U Time synchronization automatic tester |
| 06/12/2013 | CN103152117A Embedded-type high-precision network time server system |
| 06/05/2013 | CN202975622U Wireless communication watch apparatus |
| 06/05/2013 | CN202975621U Radio clock |
| 06/05/2013 | CN103138791A Method and system for achieving accurate timing by combining relay module and upper computer and relay module |
| 06/05/2013 | CN103135441A Global position system (GPS) timing device and running method thereof |
| 06/05/2013 | CN102426414B Time checking method of electric energy quality monitoring system |
| 05/29/2013 | CN202956592U Wireless monitor |
| 05/29/2013 | CN202956591U Pointer type radio controlled clock movement |
| 05/29/2013 | CN103125086A Precise time synchronisation of network subscribers |
| 05/29/2013 | CN103123458A Wrist watch based on Beidou navigation system and having global positioning and automatic time service functions |
| 05/29/2013 | CN102331707B Electronic timepiece and time difference correction method for an electronic timepiece |
| 05/29/2013 | CN102323743B Electronic device |
| 05/22/2013 | CN202946425U Clock synchronization device for fan control system |
| 05/22/2013 | CN103116269A Beidou satellite receiving terminal time integrity verification method |
| 05/08/2013 | CN202931039U Electric power parameter monitoring realization apparatus based on pulse time base signals |
| 05/08/2013 | CN202929374U Voltage monitor time calibration circuit |
| 05/08/2013 | CN202929373U Beidou seamless high-precision time service system |
| 05/08/2013 | CN202929372U Remote control alarm clock |
| 05/08/2013 | CN202929369U Time synchronizer for shore-based station of sea floor observation network |
| 05/08/2013 | CN103092067A Timing method and system based on digital logic |
| 05/08/2013 | CN103092066A Clock synchronization device and method used for fan control system |
| 05/08/2013 | CN103085845A Warden station and machine controller of plane shunting system, overhead timing system, and method |
| 05/08/2013 | CN102331706B Radio controlled timepiece |
| 05/08/2013 | CN101825866B Electronic device and satellite signal reception method for an electronic device |
| 05/08/2013 | CN101763030B Electronic apparatus, image pickup apparatus, time-correcting method, and program |
| 05/08/2013 | CN101718857B Satellite signal reception device, timekeeping device, and satellite signal reception method |
| 05/07/2013 | US8437227 Electronic timepiece |
| 05/07/2013 | US8437226 Timekeeping device and satellite signal reception method for a timekeeping device |
| 05/01/2013 | CN202916600U Satellite timing device of electric power composite automation system |
| 05/01/2013 | CN103076738A Automatic world clock replacing method and automatic world clock replacing system based on mobile terminal device |
| 05/01/2013 | CN103076737A High-precision GPS (global position system) distributive time-service method based on ping-pong buffer and message mechanism |
| 04/25/2013 | WO2013032645A3 Real-time clock integrated circuit with time code receiver, method of operation thereof and devices incorporating the same |
| 04/24/2013 | CN102346433B 时刻数据接收装置 Time data receiving apparatus |
| 04/17/2013 | CN202889361U Internet of Things terminal and Internet of Things time service system |
| 04/17/2013 | CN202886873U Civil aviation airborne driving cabin clock |
| 04/17/2013 | CN202886871U Vehicle-mounted terminal device and multipath clock synchronization system thereof |
| 04/17/2013 | CN103048919A Channel delay test-based satellite clock self-adjusting method |
| 04/17/2013 | CN102346434B Time information acquiring apparatus and radio-controlled timepiece |
| 04/10/2013 | EP2579111A2 Electronic Timepiece |
| 04/10/2013 | EP2579110A2 Electronic timepiece |
| 04/10/2013 | CN202870485U Time-service signal-receiving full-automatic selection apparatus |
| 04/10/2013 | CN202870484U Movement structure of pointer type electric wave clock |
| 04/10/2013 | CN202870480U Automatic timing digital display clock based on radio station time signals |
| 04/10/2013 | CN103036525A Piezoelectric vibration reed, piezoelectric vibrator, oscillator, electronic instrument, and radio timepiece |
| 04/10/2013 | CN103036524A Piezoelectric vibrator, oscillator, electronic instrument, and radio timepiece |
| 04/10/2013 | CN103036523A Piezoelectric vibration reed, piezoelectric vibrator, oscillator, electronic instrument, and radio timepiece |