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    • 7. 发明授权
    • ELECTRONIC WATCH WITH WIRELESS COMMUNICATION FUNCTION
    • ELEKTRONISCHE UHR MIT KABELLOSER KOMMUNIKATION FUNKTION
    • EP1522908B1
    • 2008-05-28
    • EP04731490.1
    • 2004-05-06
    • Seiko Epson Corporation
    • OGUCHI, Isao, SEIKO EPSON CORPORATION
    • G04G1/06G04C9/02
    • H01Q7/08G04C10/02G04R60/12H01Q1/273
    • A photoelectric generating means (6) is disposed proximally to the surface of the dial (21) on the back cover (3) side, and the dial (21) is made of a nonmagnetic, optically transparent material. The support substrate (62) of the photoelectric generating means (6) is a nonmagnetic material, and the antenna (5) is located proximally to the surface of the support substrate (62) on the back cover (3) side. Because the support substrate (62) is a nonmagnetic material, external RF signals can pass through the dial (21) and photoelectric generating means (6) to the coil (52) of the antenna (5), and signals can thus be received by the antenna (5). Because the antenna (5) can be contained inside the case member (1), the appearance can be improved.
    • 光电发生装置(6)位于后盖(3)侧的刻度盘(21)的表面的近侧,并且刻度盘(21)由非磁性的光学透明材料制成。 光电发生装置(6)的支撑基板(62)是非磁性材料,天线(5)位于后盖(3)侧的支撑基板(62)的表面的近侧。 由于支撑基板(62)是非磁性材料,所以外部RF信号可以通过刻度盘(21)和光电发生装置(6)通过天线(5)的线圈(52),因此可以由 天线(5)。 因为天线(5)可以容纳在壳体(1)内部,所以可以改善外观。
    • 8. 发明公开
    • Reception circuit, radio-controlled timepiece, and reception circuit control method
    • Empfangsschaltung,funkgesteuerte Uhr und Steuerungsverfahrenfürdie Empfangsschaltung
    • EP1879297A1
    • 2008-01-16
    • EP07013370.7
    • 2007-07-09
    • Seiko Epson Corporation
    • Miyahara, FumiakiFujisawa, Teruhiko
    • H04B1/16G04C9/02G04G5/00
    • H04B1/16G04R20/10G04R20/12
    • A reception circuit can receive a plurality of standard time signals and has a reception means for selectively receiving and demodulating any one of the plural standard time signals, and a control means for outputting a control signal that controls the reception means. The reception means includes a signal amplifier unit for amplifying a reception signal representing the received standard time signal; a signal extraction unit for extracting a signal of a specific frequency from the amplified reception signal; a rectifier unit for rectifying the extracted signal of the specific frequency; and a demodulation unit for demodulating the rectified signal of the specific frequency. The signal extraction unit includes a plurality of crystal filters corresponding to the frequencies of the plural standard time signals; a plurality of parallel capacitances corresponding to the plural crystal filters and parallel connected to the plural crystal filters; a filter switching unit for switching the plural crystal filters based on the control signal; and a parallel capacitance switching unit for switching the plural parallel capacitances based on the control signal. The control means outputs to the filter switching unit and the parallel capacitance switching unit a control signal denoting the switch states enabling the reception means to receive the standard time signal.
    • 接收电路可以接收多个标准时间信号,并且具有用于选择性地接收和解调多个标准时间信号中的任何一个的接收装置,以及用于输出控制接收装置的控制信号的控制装置。 接收装置包括用于放大表示所接收的标准时间信号的接收信号的信号放大器单元; 信号提取单元,用于从放大的接收信号中提取特定频率的信号; 整流单元,用于对提取的特定频率的信号进行整流; 以及用于解调特定频率的整流信号的解调单元。 信号提取单元包括与多个标准时间信号的频率对应的多个晶体滤波器; 多个并联电容对应于多个晶体滤波器并并联连接到多个晶体滤波器; 滤波器切换单元,用于基于所述控制信号切换所述多个晶体滤波器; 以及并联电容切换单元,用于基于控制信号切换多个并联电容。 控制装置向滤波器切换单元和并行电容切换单元输出表示允许接收装置接收标准时间信号的开关状态的控制信号。
    • 10. 发明公开
    • Radio controlled timepiece
    • Funkuhr
    • EP1666995A2
    • 2006-06-07
    • EP05257221.1
    • 2005-11-23
    • SEIKO INSTRUMENTS INC.
    • Saitoh, Yoritaka
    • G04G5/00G04C9/02
    • H03J7/04G04R20/10H03J2200/10
    • A reception means extracts a time code from a radio signal received by an antenna, thereby outputting it to a control means. The control means obtains an information of a present time instant from the time code extracted by the reception means and corrects a present time instant being clocked by its own clock means. A display means displays the present time instant being clocked by the clock means. In a case where there has been judged that the time code is not outputted from the reception means, the control means controls so as to alter a tuning frequency by altering a capacity value of a variable capacity diode.
    • 接收装置从由天线接收的无线电信号中提取时间码,从而将其输出到控制装置。 控制装置从由接收装置提取的时间码获得当前时刻的信息,并校正由其自己的时钟装置计时的当前时刻。 显示装置显示由时钟装置计时的当前时刻。 在已经判定没有从接收装置输出时间码的情况下,控制装置通过改变可变容量二极管的容量值来控制以改变调谐频率。