Patent ID: 8243554

Claim:
An analog type electronic timepiece comprising: a plurality of hands for displaying a time; a driving unit for electrically driving the hands; a receiver for receiving and demodulating a radio wave containing a time code signal; a controller that inputs the time code signal from the receiver and has an interrupt function caused by a rising input of the time code signal and an interrupt function caused by a falling input of the time code signal; a first timing detector for detecting a rising timing of the time code signal; a second timing detector for detecting a falling timing of the time code signal after detection of the first timing detector; a comparator for comparing a time width from a detection timing of the first timing detector until a detection timing of the second timing detector with a predetermined first time width; a second synchronization determination unit for setting the detection timing of the second timing detector as a candidate of a second synchronous point when it is determined by the comparator that the time width exceeds the predetermined first time width, and determining the second synchronous point of the time code signal based on the candidate; and an interrupt prohibition unit for prohibiting an interrupt caused by the falling input of the time code signal during a hand driving processing period of the driving unit; wherein the first timing detector is configured to detect the rising timing of the time code signal through the interrupt function caused by the rising input of the controller; and wherein the second timing detector is configured to detect the falling timing of the time code signal through the interrupt function caused by the falling input of the controller.