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公开(公告)号：US20200064859A1
公开(公告)日：2020-02-27
申请号：US16112235
申请日：2018-08-24
申请人： Baidu USA LLC
发明人： Manjiang ZHANG , Xu ZHOU , Oh KWAN , Ji LI
摘要： In one embodiment, a sensor unit to be utilized in an autonomous driving vehicle (ADV) includes a sensor interface coupled to a number of sensors mounted on a number of locations of an autonomous driving vehicle (ADV). The sensor unit includes a host interface to be coupled to a host system, where the host system is configured to perceive a driving environment surrounding the ADV based on sensor data obtained from the sensors and to plan a path to autonomously drive the ADV. The sensor unit includes a time synchronization hub device coupled to the sensor interface. The time synchronization hub device includes one or more TX and/or RX timestamp generators coupled to a time source, where the TX/RX timestamp generators generate TX/RX timestamps based on a time obtained from the time source to provide the TX/RX timestamps to one or more of the sensors.
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公开(公告)号：US20210157279A1
公开(公告)日：2021-05-27
申请号：US16953437
申请日：2020-11-20
发明人： Hidenori NAKAMURA
摘要： A time correction method is a method performed using wireless communication between an electronic apparatus that includes a first wireless communication unit, and an electronic timepiece that includes a second wireless communication unit. The time correction method includes the electronic timepiece starting wireless reception, the electronic apparatus generating an advertising signal including time data held by the electronic apparatus and starting transmission of the advertising signal, and the electronic timepiece receiving the advertising signal. The electronic timepiece updates time data held by the electronic timepiece based on the time data included in the received advertising signal.
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公开(公告)号：US10009116B2
公开(公告)日：2018-06-26
申请号：US15094366
申请日：2016-04-08
发明人： Norimitsu Baba , Hirokazu Nishijima
CPC分类号： H04B10/80 , G04R20/26 , G04R20/28 , G04R20/30 , H04B5/0081
摘要： Either the electronic timepiece or the communication device of a communication system has a first communicator, and the other has a second communicator. The first communicator has a first transmitter including a transmission coil and a drive circuit configured to drive the transmission coil, and is configured to transmit signals by communicating through electromagnetic coupling; and an first receiver including a photodetector and a detection circuit that detects the output value of the photodetector, and configured to receive signals by optical communication. The second communicator has an second transmitter including a light-emitting device and a drive circuit that drives the light-emitting device, and configured to transmit signals by optical communication; and a second receiver including a reception coil and a detection circuit that detects the output value of the reception coil, and configured to receive signals by communicating through electromagnetic coupling.
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4.发明授权公开(公告)号：US12019409B2
公开(公告)日：2024-06-25
申请号：US17168239
申请日：2021-02-05
发明人： Teruhiko Fujisawa
摘要： A radio-controlled timepiece includes a receiver configured to receive satellite radio waves including first time information, a short-range receiver configured to receive radio waves including second time information transmitted from a mobile device, an operating device configured to accept instruction operation, a reception controller configured to selectively execute first reception processing of acquiring the first time information by operating the receiver at a preset time and second reception processing of acquiring the second time information by operating the short-range radio receiver in response to the instruction operation from the operating device, and a time correction controller configured to correct a display time based on the first time information acquired in the first reception processing or the second time information acquired in the second reception processing.
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公开(公告)号：US09760063B2
公开(公告)日：2017-09-12
申请号：US14664624
申请日：2015-03-20
发明人： Kosuke Hasegawa
摘要： An electronic timepiece including: an operating unit which performs an operation including at least one of transmission, reception and generation of electromagnetic waves of a predetermined strength or more; a display unit which displays information; a reception unit which receives a predetermined operation for switching a display content by the display unit between display contents according to a plurality of functions; an output control unit which sets the display content to be a basic display according to a predetermined basic function when the reception unit continuously receives the predetermined operation for a first predetermined time; and a setting unit which switches on/off of the operation of the operating unit between an operation allowed state and an operation prohibited state when the reception unit continuously receives the predetermined operation for a second predetermined time longer than the first predetermined time.
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6.发明申请公开(公告)号：US20210247724A1
公开(公告)日：2021-08-12
申请号：US17168239
申请日：2021-02-05
发明人： Teruhiko FUJISAWA
摘要： A radio-controlled timepiece includes a receiver configured to receive satellite radio waves including first time information, a short-range receiver configured to receive radio waves including second time information transmitted from a mobile device, an operating device configured to accept instruction operation, a reception controller configured to selectively execute first reception processing of acquiring the first time information by operating the receiver at a preset time and second reception processing of acquiring the second time information by operating the short-range radio receiver in response to the instruction operation from the operating device, and a time correction controller configured to correct a display time based on the first time information acquired in the first reception processing or the second time information acquired in the second reception processing.
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7.发明授权Multipoint simultaneous measurement method and multipoint simultaneous measurement system in electric power station, and internal clock used therefor 有权电站多点同时测量方法和多点同时测量系统，以及用于其的内部时钟公开(公告)号：US09459591B2
公开(公告)日：2016-10-04
申请号：US13981805
申请日：2012-05-28
申请人： Tatsuya Chiba , Masaki Sato , Yoichi Yanagisawa
发明人： Tatsuya Chiba , Masaki Sato , Yoichi Yanagisawa
摘要： A multipoint simultaneous measurement method and a multipoint simultaneous measurement system in an electric power station and an internal clock used therefor, capable of performing measurement at the correct time even at a place in the electric power station where GPS radio waves cannot be received, and of securing simultaneity with high accuracy and with ease without connecting a plurality of measurement points via a cable and the like.
摘要翻译： 电站中的多点同时测量方法和多点同时测量系统及其使用的内部时钟，即使在无法接收GPS无线电波的电站中也能够在正确的时间进行测量，以及 通过电缆等连接多个测量点，可以高精度和轻松地确保同时性。
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公开(公告)号：US11703812B2
公开(公告)日：2023-07-18
申请号：US16585039
申请日：2019-09-27
发明人： Hayato Hori , Shuto Oikawa
摘要： A timepiece includes a clock circuit, a signal receiver configured to receive signals including time information, a processor configured to control a changing operation of changing a current time measured by the clock circuit based on the time information obtained from the signal receiver and controls a presenting operation of whether or not the changing operation is successful. The processor controls the changing operation based on a first flag indicating whether or not the signal receiver successfully receives the time information. The processor controls the presenting operation based on a second flag indicating whether or not the changing operation is successful within a predetermined period of time.
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公开(公告)号：US10788841B2
公开(公告)日：2020-09-29
申请号：US16112235
申请日：2018-08-24
申请人： Baidu USA LLC
发明人： Manjiang Zhang , Xu Zhou , Oh Kwan , Ji Li
摘要： In one embodiment, a sensor unit to be utilized in an autonomous driving vehicle (ADV) includes a sensor interface coupled to a number of sensors mounted on a number of locations of an autonomous driving vehicle (ADV). The sensor unit includes a host interface to be coupled to a host system, where the host system is configured to perceive a driving environment surrounding the ADV based on sensor data obtained from the sensors and to plan a path to autonomously drive the ADV. The sensor unit includes a time synchronization hub device coupled to the sensor interface. The time synchronization hub device includes one or more TX and/or RX timestamp generators coupled to a time source, where the TX/RX timestamp generators generate TX/RX timestamps based on a time obtained from the time source to provide the TX/RX timestamps to one or more of the sensors.
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10.发明申请公开(公告)号：US20190250567A1
公开(公告)日：2019-08-15
申请号：US15775851
申请日：2015-12-29
发明人： Hui WANG , Yucheng JI
IPC分类号： G04R20/28
摘要： An automatic regular time service method for a pointer type intelligent clock includes the following steps: a clock is connected to a mobile intelligent terminal by a wireless communication module to obtain a standard time; when the clock is not connected to the mobile intelligent terminal, an MCU module calls an internal error correction parameter list regularly by means of a command signal to obtain a correction time; and a movement controls pointers to rotate to synchronize the time to the standard time or correction time. A time service system for a pointer type intelligent clock is also disclosed. The method and the system solve the timekeeping error problem of a clock caused by a crystal oscillator error of a quartz movement, and can perform an automatic time service even if the clock is not connected to the network.
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