Electronic timepiece, control method for electronic timepiece, regulating system for electronic timepiece, and regulating method for electronic timepiece

A system for regulating an electronic timepiece on the basis of data signals transmitted from an external transmitting device, the system comprising:

• the electronic timepiece;
• and
• the external transmitting device,
• wherein the electronic timepiece includes:
• a coil;
• a signal input unit for inputting a signal in response to an external operation;
• a mode setting unit for switching, in response to the signal, an operation mode of the electronic timepiece between a data receive mode and a normal operation mode;
• a synchronization signal generating unit for generating, when the operation mode is in the data receive mode, an internal synchronization signal that is synchronized to an external synchronization signal transmitted from the external transmitting device;
• a received data recovery unit for recovering, when the operation mode is in the data receive mode, received data on the basis of the internal synchronization signal and a data voltage signal induced across the coil by a transmitted data signal from the external transmitting device, and for outputting the received data;
• and
• an operation control unit for placing the received data recovery unit in an operation enabled state only during a prescribed time period while the electronic timepiece is in the data receive mode;
• wherein the external transmitting device includes a transmitter unit for transmitting the external synchronization signal and a pre-stored data signal on the basis of signals generated by an oscillating unit.

A control method for an electronic timepiece with a coil comprising:

• a mode setting step for switching an operation mode of the electrical timepiece between a data receive mode and a normal operation mode in response to an external operation;
• a synchronization signal generating step for generating, when the operation mode is in the data receive mode, an internal synchronization signal that is synchronized to an external synchronization signal transmitted from an external transmitting device;
• a received data recovery step for recovering, when the operation mode is in the data receive mode, a received data on the basis of the internal synchronization signal and a data voltage signal induced across the coil by a data signal transmitted from the external transmitting device, and outputting the received data;
• and
• an operation control step for enabling recovery of the received data in the received data generating step only during a prescribed time period while the electronic timepiece is in the data receive mode.

A method for regulating, on the basis of data signals transmitted from an external transmitting device, an electronic timepiece including a coil;

• a signal input unit for inputting a signal in response to an external operation;
• and a mode setting unit for switching, in response to the signal, an operation mode of the electronic timepiece between a data receive mode and a normal operation mode, the method comprising:
• a synchronization signal generating step for generating, when the operation mode is in the data receive mode, an internal synchronization signal that is synchronized to an external synchronization signal transmitted from the external transmitting device;
• a received data recovery step for recovering, when the operation mode is in the data receive mode, a received data on the basis of the internal synchronization signal and a data voltage signal induced across the coil by a data signal transmitted from the external transmitting device, and outputting the received data;
• and
• an operation control step for, only during a prescribed time period during the data receive mode, enabling recovery of the received data in the received data generating step.