Calendar display apparatus

Details Calendar display apparatus Calendar display apparatus

1990-02-13

1990-11-20

Miska, Vit W.

Horology: time measuring systems or devices

With calendar indicator

368 37, G04B 1924

Patent

active

049723936

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.

REFERENCES:
patent: 1548772 (1925-08-01), Van Dyke
patent: 1600913 (1926-09-01), Van Dyke
patent: 2603940 (1952-07-01), Packard
patent: 23123091 (1938-07-01), Becker
patent: 3621648 (1971-11-01), Takagi
patent: 4541725 (1985-09-01), Baumgartner et al.

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