Calendar display apparatus
AssigneeCitizen Watch Co., Ltd.
InventorsMasahiro Sase, Takeo Muto, Teruho Keida
Life of this patent
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Abstract
A calendar display apparatus includes a reference signal generator, a calendar data generator, and rotational display members. The reference signal generator generates a reference signal every period of 24 hours. The calendar data generator generates year, month, date, and day data upon reception of the reference signal. The rotational display members are driven by signals from the calendar data generator so as to display a year, a month, a date, and a day. A scale corresponding to the rotational display member for displaying years is constituted by multiple circular scales. Scale marks representing years are sequentially and continuously formed on the multiple circular scales from its inner circumference to outer circumferences.
Claims11
A calendar display apparatus including reference signal generating means for generating a reference signal having a period of 24 hours, calendar data generating means for generating year, month, date, and day data on the basis of the reference signal, and rotational display members, driven by signals from said calendar data generating means, for displaying a year, a month, a date, and a day, characterized in that a scale pointed by said rotational year display member comprises a multiple circular scale having year scale marks formed thereon continuously from an inner circumference to outer circumferences thereof such that number of years increases sequentially.
Dependencies are inferred from the claim text.