US 4,242,747 A · Analog-digital chronometric display

Abstract

A chronometric indicator for a watch has concentric arrays of angularly equispaced electrodes and analog display segments. The electrodes are staggered relative to the display segments so that each electrode overlaps halves of two adjacent segments, so that by selective energization of the electrode and the segments any half can be optically activated. In addition a digital display is provided within the two annular arrays, with each digit segment of the display being connected to a respective analog segment. A common connection for this digital display can be energized simultaneously with any of the outer analog segments to cause the corresponding digit segment to glow. The overlapping arrays of electrodes and analog display segments are energized to indicate the hour and minute, and the digital display is energized to indicate the second.

Claims9

Dependent claims

A chronometric indicator comprising:

an array of generally angularly equispaced electrodes each having a respective electrode connection;
an array of generally angularly equispaced analog display segments each having a respective segment connection and each having one half overlapping one respective electrode and another half overlapping another respective electrode;
and
means connected to said connections and operable in a first phase to energize two of said segment connections and one of said electrode connections to indicate the hour by activating two of said halves, and in a second phase to energize a single one of said segment connections and a single one of said electrode connections to indicate the minute by activating one of said halves.

1 more element

Dependencies are inferred from the claim text.

Analog-digital chronometric display

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Analog-digital chronometric display

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Abstract

Claims9