JPS61111485A - Electronic timepiece - Google Patents

Abstract

PURPOSE:To make a crown operation unnecessary by shifting the position of a long hand only by touching a cover glass with a finger and correcting the time. CONSTITUTION:A comparator circuit 6 compares a position detected by a touch position detection circuit 2 with that of the long hand of a clock counter 5, and obtains their difference. A motor 7 is normally used for driving the clock, and the long hand is driven by the amount obtained by the comparator circuit 6 at correcting the time. At this time, the motor 7 makes two turns, that is, normal and revers ones, in the direction where a transparent electrode 1 touched with a finger and the long hand can make below 180 deg.. Twelve transparent electrodes 1 are fitted by five-minite interval, and touched with a finger in the corrected state to move the long hand. When a finger is made turn along the transparent electrode 1, the correction more than one hour can be attained.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to improvements in time adjustment operations in electronic watches.

[Conventional technology]

Conventionally, in electronic watches, the minute hand is rotated by pulling out and rotating the crown.

[Problem that the invention seeks to solve]

However, with the conventional technology, several operations are required to pull out the crown, rotate it, and push it in to set the time.

Additionally, there are many mechanical parts that go in and out of the crown, which poses reliability issues.

Therefore, the present invention is intended to solve these problems, and its object is to provide an electronic timepiece that does not require crown operation.

[Means for solving problems]

The electronic timepiece of the present invention includes a transparent electrode divided into a plurality of parts in the circumferential direction on a cover glass, a detection means A9 for detecting which electrode of the transparent electrode is touched; Means B1 for storing the position A above-mentioned means A
The present invention is characterized by comprising a comparison means for determining the difference between and means B, and an electromechanical conversion mode capable of forward and reverse rotation to move the long hand by the obtained difference.The present invention has the above configuration. This allows the minute hand to move simply by touching the cover glass, making it easy to adjust the time.

〔Example〕

Hereinafter, the present invention will be described in detail based on examples.

FIG. 1 is a block diagram of an electronic timepiece according to the present invention. 1 is a sensor that detects the touch of a finger, 2 is a touch position detection circuit that detects the touch position, 3 is an oscillation circuit using a crystal oscillator, 4 is a frequency dividing circuit, and 5 is a clock counter, which is connected to the long hand. Remembers location. 6 is a comparison circuit that compares the position detected by the touch position detection circuit 2 with the position of the long hand of the clock counter 5 to find the difference. 7 is a motor that is normally used to drive the clock, and 6 when adjusting the time. in!
Drive the long hand by the amount obtained. Did you touch it with your finger at this time? The motor rotates in two ways, forward and reverse, in the direction where the angle between the A-bright electrode and the long hand is 180 degrees or less.

FIG. 2 shows an embodiment of time adjustment using the electronic timepiece of the present invention. Twelve transparent electrodes in No. 1 are attached at 5-minute intervals, and when the transparent electrodes are touched in the corrected state, the long hand moves by the circuit described above. The hour hand is 30 per hour as usual.
Since the degree changes, it is possible to make corrections for more than an hour by placing your finger on the transparent electrode and rotating it.

FIG. 5 is a sectional view of the touch position detection section of the electronic timepiece according to the present invention. When the watch case part is brought into contact with a human body and a finger touches the transparent electrode 1, a capacitive component is generated between the electrode facing the contact part and the watch case 2. The touch position detection circuit in No. 5 measures and compares the capacitance changes of each electrode to detect the electrode input. In this way, you can switch modes without operating the crown and simply touch your finger on the cover glass. The time can be easily adjusted, and since no transmission is required, the number of mechanical parts is reduced and reliability is improved.

Also, from a design perspective, it is possible to create something simpler.

〔Effect of the invention〕

As described above, the present invention not only allows the time to be easily adjusted without operating the crown, but also reduces the number of mechanical parts such as a liise necessary for time adjustment, improving reliability. Since there is no need to drill a hole for the liaison, the case processing becomes simpler and costs can be reduced. Furthermore, since it does not require a lily, it completely eliminates water seepage through the use hole, which is impossible with conventional watches, and even low-cost watches can be far more waterproof than conventional watches.

[Brief explanation of drawings]

FIG. 1 is a block diagram of an electronic timepiece according to the present invention. FIG. 2 shows the time adjustment state of the electronic timepiece according to the present invention. FIG. 3 is a cross-sectional view of a touch position detection section according to the present invention.

Claims (1)

[Claims] In an electronic watch that displays time using hands, a transparent electrode divided into a plurality of parts in the circumferential direction on a cover glass, a detection means A for detecting which electrode of the transparent electrode is touched;
A long hand and a short hand that serve as time pointers, a means B for storing the position of the long hand, a comparison means for determining the difference between the means A and B, and forward and reverse rotation for moving the long hand by the obtained difference. An electronic clock characterized by being equipped with an electromechanical converter.