发明名称 Radio-controlled watch
摘要 Provided is a radio-controlled watch capable of performing leap second correction even when information on a leap second is not received from a satellite. Provided is a radio-controlled watch that adjusts time by receiving a signal containing time information from a satellite, the radio-controlled watch being configured to: store a leap second correction value to be used for leap second correction with respect to the time information; display a numerical value corresponding to the leap second correction value; receive an instruction operation of changing the leap second correction value from a user in a state in which the numerical value is displayed; and change the leap second correction value in response to the received instruction operation.
申请公布号 US8792308(B2) 申请公布日期 2014.07.29
申请号 US201113634403 申请日期 2011.03.23
申请人 Citizen Holdings Co., Ltd.;Citizen Watch Co., Ltd 发明人 Kato Akira;Hagita Takushi;Yasuoka Tadashi
分类号 G04C11/02 主分类号 G04C11/02
代理机构 Sughrue Mion, PLLC 代理人 Sughrue Mion, PLLC
主权项 1. A radio-controlled watch that adjusts time by receiving a signal containing time information from a satellite, the radio-controlled watch comprising: storage means for storing a leap second correction value to be used for leap second correction with respect to the time information; leap second display means for displaying a numerical value corresponding to the leap second correction value stored in the storage means; instruction receiving means for receiving an instruction operation of changing the leap second correction value from a user in a state in which the leap second display means displays the numerical value; and leap second correction value changing means for changing the leap second correction value stored in the storage means in response to the received instruction operation, wherein: the storage means further stores information relating to an expiry date of the leap second correction value; the leap second correction value changing means updates the information relating to the expiry date when changing the leap second correction value; and the radio-controlled watch further comprises determination result display means for determining, with use of the information relating to the expiry date, whether the leap second correction value stored in the storage means is valid or not, and displaying a result of the determination.
地址 Tokyo JP