公开(公告)号：US06320822B1

公开(公告)日：2001-11-20

申请号：US09341896

申请日：1999-08-26

申请人： Makoto Okeya ,  Teruhiko Fujisawa ,  Hiroshi Yabe ,  Joji Kitahara ,  Hiroyuki Kojima ,  Noriaki Shimura

发明人： Makoto Okeya ,  Teruhiko Fujisawa ,  Hiroshi Yabe ,  Joji Kitahara ,  Hiroyuki Kojima ,  Noriaki Shimura

IPC分类号： G04B900

CPC分类号： G04G19/12 ,  G04C10/00 ,  Y10T307/799 ,  Y10T307/858

摘要： Portable electronic equipment includes a carried-by-user detector for detecting whether the electronic equipment is in a state carried by a user or not. When the electronic equipment is in a state not carried by the user, i.e., when the user is not employing the electronic equipment, an operating mode is shifted from a normal operating mode to a power saving mode to reduce power consumption of the electronic equipment. Useless consumption of power during non-use of the electronic equipment can be thus reduced. Further, in electronic equipment (timepiece) incorporating a power generator for generating power by converting first energy (motion, pressure or heat) into electric energy as second energy, whether the power generator is generating power, i.e., whether the electronic equipment is carried by the user, is detected by a power generation detecting circuit, and when a non-power-generation time exceeds a predetermined time, the operating mode is shifted to the power saving mode, thereby reducing power consumption. Accordingly, the electronic equipment (timepiece) can be provided with which when the electronic equipment is in the state not carried by the user or when the electronic equipment is in the state not carried by the user and in a state of not generating power, the operating mode of the electronic equipment is shifted to the power saving mode and energy can be saved without inconveniencing the user.

摘要翻译： 便携式电子设备包括用于检测电子设备是否处于由用户携带的状态的携带用户检测器。 当电子设备处于未由用户承载的状态时，即当用户不使用电子设备时，操作模式从正常操作模式转换到省电模式，以减少电子设备的功耗。 可以减少在不使用电子设备期间无用的功率消耗。 此外，在通过将第一能量（运动，压力或热）转换为电能作为第二能量的发电机组合的电子设备（钟表）中，发电机是否发电，即电子设备是否由 用户被发电检测电路检测到，当非发电时间超过预定时间时，将工作模式转移到省电模式，从而降低功耗。 因此，可以提供电子设备（时计），当电子设备处于未被用户携带的状态时或者当电子设备处于未由用户承载的状态并且处于不发电的状态时， 电子设备的操作模式转移到省电模式，并且可以节省能量，而不会使用户不便。

公开(公告)号：US06462967B1

公开(公告)日：2002-10-08

申请号：US09454264

申请日：1999-12-03

申请人： Teruhiko Fujisawa ,  Makoto Okeya

发明人： Teruhiko Fujisawa ,  Makoto Okeya

IPC分类号： H02J102

CPC分类号： G04G19/02

摘要： An oscillation circuit 80 produces an oscillation signal in accordance with the oscillation frequency of a quartz oscillator 81, and a frequency dividing circuit 90 divides the frequency of the oscillation signal to produce a sampling clock CKs having a duty ratio of 1/8. A constant-voltage circuit 70 is operated during the period in which the sampling clock CKs takes an “H” level, and is stopped during the period in which the sampling clock CKs takes an “L” level. During the period in which the constant-voltage circuit 70 stops the operation, a voltage Vreg affected by fluctuations in a second lower potential side voltage Vss2 is generated. However, since the cycle of the sampling clock CKs is short, a fluctuation width of the voltage Vreg is suppressed. Power consumption of the constant-voltage circuit 70 is reduced.

摘要翻译： 振荡电路80根据石英振荡器81的振荡频率产生振荡信号，分频电路90分频振荡信号的频率，产生占空比为1/8的采样时钟CKs。 在采样时钟CK为“H”电平的期间，恒定电压电路70动作，在采样时钟CK为“L”电平的期间停止。 在恒压电路70停止动作的期间，产生受第二低电位侧电压Vss2的波动影响的电压Vreg。 然而，由于采样时钟CKs的周期短，因此电压Vreg的波动宽度被抑制。 恒压电路70的功耗降低。

公开(公告)号：US06693851B1

公开(公告)日：2004-02-17

申请号：US09743665

申请日：2001-01-11

申请人： Teruhiko Fujisawa ,  Makoto Okeya

发明人： Teruhiko Fujisawa ,  Makoto Okeya

IPC分类号： G04C300

CPC分类号： H02J9/005 ,  G04C10/00 ,  G04G19/12

摘要： When an electronic timepiece is in a power-saving mode in which the current time display is suspended, it is determined whether or not the charge voltage supplied from a high-capacity capacitor is higher than a predetermined reference voltage, and if higher, enough electrical energy is stored in the high-capacity capacitor to return from the power-saving mode to the display mode, so that a current time restoration process is performed upon detecting power generation. On the other hand, if the charge voltage is less than or equal to the predetermined reference voltage, the supply of the power supply voltage to the control circuits is stopped to prevent the electrical energy stored in the high-capacity capacitor from being consumed needlessly. As a result, the electronic timepiece can be reactivated quickly when the power generating device begins to generate power.

摘要翻译： 当电子钟表处于暂停当前时间显示的省电模式时，确定从大容量电容器提供的充电电压是否高于预定的参考电压，并且如果更高，足够的电 能量被存储在高容量电容器中以从节电模式返回到显示模式，从而在检测发电时执行当前时间恢复处理。 另一方面，如果充电电压小于或等于预定参考电压，则停止向控制电路供应电源电压，以防止存储在大容量电容器中的电能被不必要地消耗。 结果，当发电装置开始发电时，电子表可以重新激活。

公开(公告)号：US09130272B2

公开(公告)日：2015-09-08

申请号：US12913548

申请日：2010-10-27

申请人： Teruhiko Fujisawa

发明人： Teruhiko Fujisawa

IPC分类号： H01Q1/12 ,  G04B47/00 ,  H01Q1/27 ,  G04G5/00 ,  H01Q1/40 ,  H01Q7/00 ,  G04R60/10

CPC分类号： H01Q1/273 ,  G04G5/002 ,  G04R60/10 ,  H01Q1/40 ,  H01Q7/00

摘要： A wrist-worn electronic device includes an antenna that receives externally transmitted radio signals; a case of which at least part is made of a non-conductive material; an information display unit that is housed inside the case, is flat, and is made of a non-conductive material; a back cover that is attached to the case and is made of a conductive material; and a reception unit that is positioned and housed inside the case between the information display unit and the back cover, and processes a reception signal based on radio signals received by the antenna. The antenna has an antenna electrode that is disposed and formed as a line around the outside of the information display unit. The back cover is connected to the ground potential of the reception unit and reflects the radio signals.

摘要翻译： 手腕式电子设备包括接收外部发送的无线电信号的天线; 至少部分由非导电材料制成的情况; 容纳在壳体内的信息显示单元是平坦的，并且由非导电材料制成; 后盖，其附接到壳体并由导电材料制成; 以及接收单元，其被定位并容纳在信息显示单元和后盖之间的壳体内，并且基于由天线接收的无线电信号来处理接收信号。 天线具有天线电极，该天线电极被设置和形成为围绕信息显示单元的外部的线。 后盖连接到接收单元的接地电位，并反射无线电信号。

公开(公告)号：US08570838B2

公开(公告)日：2013-10-29

申请号：US13293183

申请日：2011-11-10

申请人： Teruhiko Fujisawa

发明人： Teruhiko Fujisawa

IPC分类号： G04C11/00 ,  H01Q13/10 ,  G04R60/06 ,  G04R60/12

CPC分类号： G04R60/10 ,  G04C10/02 ,  G04R60/06 ,  G04R60/12 ,  H01Q1/273 ,  H01Q13/10

摘要： An electronic timepiece with internal antenna maintains sufficiently high reception performance of circularly polarized waves even when having a metal external case. The timepiece has a cylindrical case; a crystal that covers the opening on the face side of the case; a drive mechanism that arranged inside the case; a metal antenna; and a dielectric. The antenna houses the drive mechanism and has a cylindrical side part, a bottom part that covers the opening on the back side of the side part, and an antenna electrode that contacts the inside of the side part. The back cover covers the back side of the case and is also the bottom part. The dielectric extends circumferentially to the side part, and contacts the antenna electrode in the face-back cover direction. A slot extending circumferentially is formed in the antenna electrode. Part or all of the slot is covered by the dielectric.

摘要翻译： 具有内部天线的电子钟表即使在具有金属外壳的情况下也能保持足够高的圆偏振波的接收性能。 钟表具有圆柱形外壳; 覆盖壳体正面的开口的晶体; 驱动机构，其布置在所述壳体内; 金属天线; 和电介质。 天线装有驱动机构，并且具有圆筒形侧部，覆盖侧部侧背面的开口部的底部和与侧部内侧接触的天线电极。 后盖覆盖壳体的背面，也是底部。 电介质沿周向延伸到侧部，并且在面向后盖方向上与天线电极接触。 在天线电极中形成有周向延伸的槽。 部分或全部槽被电介质覆盖。

公开(公告)号：US07903501B2

公开(公告)日：2011-03-08

申请号：US12145379

申请日：2008-06-24

申请人： Teruhiko Fujisawa

发明人： Teruhiko Fujisawa

IPC分类号： G04C11/02 ,  H04L25/49

CPC分类号： G04R20/10

摘要： A radio-controlled timepiece that receives a standard time signal containing a time code and adjusts the time based on the received standard time signal includes: a reception unit that receives the standard time signal; an analog/digital conversion unit that digitizes the received standard time signal based on a prescribed threshold value; a time counter that keeps time; a time code generator that generates a reference time code based on the time counted by the time counter; a duty evaluation unit that calculates the pulse duty cycle of the digital signal output from the A/D conversion unit, and determines if the received pulse duty cycle that is calculated matches the duty cycle of the reference time code generated by the time code generator; a level changing unit that changes the relative level of the threshold value to the reception signal if the duty evaluation unit determines that the received pulse duty cycle does not match the duty cycle of the reference time code; and a time code decoder that decodes the digital signal and demodulates the time code if the duty evaluation unit determines that the received pulse duty cycle matches the duty cycle of the reference time code.

摘要翻译： 接收包含时间码并基于接收的标准时间信号调整时间的标准时间信号的无线电控制时计包括：接收标准时间信号的接收单元; 模拟/数字转换单元，其基于规定的阈值对接收到的标准时间信号进行数字化; 一个保持时间的时间计数器 时间码发生器，其基于由时间计数器计数的时间生成基准时间码; 负责评估单元，计算从A / D转换单元输出的数字信号的脉冲占空比，并且确定所计算的接收脉冲占空比是否与由时间码发生器产生的参考时间码的占空比相匹配; 如果占空比评估单元确定接收到的脉冲占空比与参考时间码的占空比不匹配，则电平改变单元将阈值的相对电平改变为接收信号; 以及时间码解码器，其对所述数字信号进行解码，并且如果所述占空比评估单元确定所接收的脉冲占空比与所述参考时间码的所述占空比匹配，则解调所述时间码。

公开(公告)号：US07720452B2

公开(公告)日：2010-05-18

申请号：US11763332

申请日：2007-06-14

申请人： Fumiaki Miyahara ,  Teruhiko Fujisawa

发明人： Fumiaki Miyahara ,  Teruhiko Fujisawa

IPC分类号： H04B1/18 ,  G04C11/02

CPC分类号： H04B1/16 ,  G04R20/10 ,  G04R20/12

摘要： 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.

摘要翻译： 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，用于对提取出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，用于基于所述控制信号切换所述多个并联电容。 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。

公开(公告)号：US07391677B2

公开(公告)日：2008-06-24

申请号：US11777884

申请日：2007-07-13

申请人： Osamu Urano ,  Teruhiko Fujisawa ,  Katsuyuki Honda ,  Jun Matsuzaki

发明人： Osamu Urano ,  Teruhiko Fujisawa ,  Katsuyuki Honda ,  Jun Matsuzaki

IPC分类号： G04C11/02 ,  H04B7/19 ,  H04B7/185 ,  G01S1/00

CPC分类号： G01S19/34 ,  G01S19/27

摘要： A positioning device has a reception unit for receiving navigation messages transmitted continuously in a time series from positioning information satellites orbiting the Earth and determines the location of the positioning device based on the navigation messages received by the transmission unit. Each navigation message is segmented into a plurality of data transmission blocks that are transmitted sequentially, a portion of the data transmission blocks carry almanac data containing orbital information for all positioning information satellites including the positioning information satellite transmitting the received navigation message, and the data transmission blocks carrying the almanac data are transmitted non-contiguously. The positioning device also has signal discrimination unit for identifying the start of receiving a data transmission block containing the non-contiguously transmitted almanac data, and identifying the end of receiving the data transmission block containing the almanac data. The reception unit intermittently receives the signals of the data transmission blocks containing the almanac data by receiving the navigation messages in the reception time of the data transmission blocks containing the almanac data identified by the signal discrimination unit.

摘要翻译： 定位装置具有接收单元，用于接收从轨道上的定位信息卫星以时间序列连续发送的导航信息，并且基于由传输单元接收的导航消息确定定位设备的位置。 每个导航消息被分割成顺序发送的多个数据传输块，一部分数据传输块携带包含所有定位信息卫星的轨道信息的年历数据，包括定位信息卫星发送接收的导航消息，数据传输 携带历书数据的块非连续传输。 定位装置还具有用于识别接收包含非连续发送的历书数据的数据发送块的开始的信号鉴别单元，并且识别包含历书数据的数据发送块的接收结束。 接收单元通过在包含由信号鉴别单元识别的年历数据的数据传输块的接收时间内接收导航消息来间歇地接收包含历书数据的数据传输块的信号。

公开(公告)号：US20080025151A1

公开(公告)日：2008-01-31

申请号：US11777884

申请日：2007-07-13

申请人： Osamu Urano ,  Teruhiko Fujisawa ,  Katsuyuki Honda ,  Jun Matsuzaki

发明人： Osamu Urano ,  Teruhiko Fujisawa ,  Katsuyuki Honda ,  Jun Matsuzaki

IPC分类号： G01S1/00 ,  G04B47/00

CPC分类号： G01S19/34 ,  G01S19/27

摘要： A positioning device has a reception unit for receiving navigation messages transmitted continuously in a time series from positioning information satellites orbiting the Earth and determines the location of the positioning device based on the navigation messages received by the transmission unit. Each navigation message is segmented into a plurality of data transmission blocks that are transmitted sequentially, a portion of the data transmission blocks carry almanac data containing orbital information for all positioning information satellites including the positioning information satellite transmitting the received navigation message, and the data transmission blocks carrying the almanac data are transmitted non-contiguously. The positioning device also has signal discrimination unit for identifying the start of receiving a data transmission block containing the non-contiguously transmitted almanac data, and identifying the end of receiving the data transmission block containing the almanac data. The reception unit intermittently receives the signals of the data transmission blocks containing the almanac data by receiving the navigation messages in the reception time of the data transmission blocks containing the almanac data identified by the signal discrimination unit.

摘要翻译： 定位装置具有接收单元，用于接收从轨道上的定位信息卫星以时间序列连续发送的导航信息，并且基于由传输单元接收的导航消息确定定位设备的位置。 每个导航消息被分割成顺序发送的多个数据传输块，一部分数据传输块携带包含所有定位信息卫星的轨道信息的年历数据，包括定位信息卫星发送接收的导航消息，数据传输 携带历书数据的块非连续传输。 定位装置还具有用于识别接收包含非连续发送的历书数据的数据发送块的开始的信号鉴别单元，并且识别包含历书数据的数据发送块的接收结束。 接收单元通过在包含由信号鉴别单元识别的年历数据的数据传输块的接收时间内接收导航消息来间歇地接收包含历书数据的数据传输块的信号。

公开(公告)号：US06999381B2

公开(公告)日：2006-02-14

申请号：US10371384

申请日：2003-02-21

申请人： Teruhiko Fujisawa ,  Isao Oguchi

发明人： Teruhiko Fujisawa ,  Isao Oguchi

IPC分类号： G04C11/02

CPC分类号： G04G21/02 ,  G04G21/04 ,  G04R20/10 ,  G04R20/12

摘要： An electronic device able to accurately receive external wireless information, a reception controller for the electronic device, and a reception control program for the electronic device. A radio-controlled timepiece has a stepping motor unit and an external wireless information reception unit for receiving a carrier wave with time information. The stepping motor unit has a magnetic field evaluation unit for detecting whether or not an external magnetic field is present and outputting a signal indicative of whether or not such an external magnetic field is present. The external wireless information reception unit has an antenna for receiving external wireless information and a receiving circuit for processing external wireless information received from the antenna. A reception controller controls the external wireless information reception unit according to the external-magnetic-field-detection signal output from the magnetic field evaluation unit.