JPS61130892A - Electronic wrist watch - Google Patents

Abstract

PURPOSE:To eliminate waste power consumption, by totally stopping the circuit with an external control switch. CONSTITUTION:When an external control switch 6 is closed, the input signal (a) of a NOR gate 11 composing a totally stopping circuit 5 moves to the logical level 0 while the output signal (b) of a control circuit 4 moves to the logical level 1. Then, the output (c) of the circuit 5 goes to the logical level 0 and the action of a display unit 3 is stopped. then, a MOS transistor 8 comprising a feedback resistance of an oscillation inverter 10 of an oscillation circuit 1 is turned OFF and a transistor 7 for short-circuiting a gate of the inverter 10 is turned ON. As a result, the vibration of a crystal resonator 9 is stopped to eliminate waste power consumption. Therefore, the total stopping function can be operated during the period to the start of marketing after the completion of a timepiece to satisfy the nominal life safficiently about the battery after it is marketed.

Description

[Detailed description of the invention] [Industrial application field] A wooden invention related to power saving of electronic wristwatches.

[Conventional technology]

In conventional electronic watches, after the AI construction was completed, a battery was introduced, and the clock started working, and even if it was stored at a watch store, the clock always worked. .

[Problems that the invention seeks to solve]

However, with the above-mentioned conventional technology, the watch is in operation from the time the watch body is completed until it is sold, and if it is kept in a watch store for a very long time, one of the main problems is the consumption of the pond. It has progressed quite a bit, and the battery runs out as soon as it is in the hands of a watchmaker.Even if the nominal battery life of an electronic wristwatch is written as, for example, 2 years when reading the instruction manual, For customers, the product has a lifespan of two years after purchase, which creates a sense of distrust.) In addition, there are cases where a wristwatch with a pointer display is stored with the seconds set and the hands stopped. The problem was that the oscillation circuit that consumed the most resources was operating.

A precautionary measure to solve the problem] The electronic wristwatch of the present invention is characterized in that the circuit is completely stopped by an external operation switch. By operating the external operation switch, all parts of the clock that consume power, such as the oscillation circuit, branch circuit, and display device, are stopped, thereby eliminating power consumption.

〔Example〕

FIG. 1 is a block diagram of a circuit configuration in an embodiment of the present invention, and diagram t42 is a detailed circuit diagram of diagram tR1.

The time standard signal is oscillated at the oscillation circuit [181, and the frequency dividing circuit 2
The frequency of the 1-hour standard single signal is divided into necessary low frequency signals, and the signals are displayed on the display device Wt3. This display R3 may be either a pointer display or a digital display.

When the external operation switch 6 is closed, the control circuit 4 prevents chattering, the full stop circuit 5 is activated, and the oscillation circuit 1 and display device 3 are stopped. Most of the circuits used in electronic watches are made up of 0-M0E+ transistors, and the 9 circuits made up of C-MOS (C-MOS) transistors are not operated and stop. If it is, it will consume almost no power. Therefore, if the total shutdown circuit described above is in operation, the power consumption will be almost rx.

Using Figure 2, we will explain in more detail the state in which the full stop circuit is activated.

When the external operation switch 6 is closed, the input signal α of the NOR gate 11 constituting the total stop circuit 5 goes to logic level "0".
Therefore, the output signal of the control circuit 4 has a logic level of "1".
Then, the output C of the all stop circuit 5 becomes logic level "0", the display device 5 stops operating, and the MOS transistor 8 forming the feedback resistance of the oscillation inverter 0 of the oscillation circuit 1
is turned off, and transistor 7, which shorts the gate of oscillation inverter 0, is turned on. As a result, the vibration of the Mizushima root mover 9 is stopped, and wealth consumption is eliminated.

Then, when the external operation switch 6 is opened, the signal αhC1 has a logic level of "1", the output C of the all stop circuit 5 has a logic level of "1", and the display R5° oscillation circuit 1 starts operating.

In the above-mentioned embodiment, control is performed using a full stop circuit.
However, it is also possible to directly stop the oscillation circuit display bias using an external operation switch, or the same effect can be achieved by controlling the oscillation circuit/display device to turn off the power.

〔Effect of the invention〕

As mentioned above, according to the present invention, by operating the external operation switch, the full stop function is activated and the oscillation circuit, etc. is stopped. After that, if you activate the full stop function until the time of sale, then if you release the full stop function at the time of sale, the battery life after reaching the customer will fully satisfy the nominal battery life. This increases confidence in the watch.

Furthermore, this operation can be easily performed using an external operating member, and it is possible to completely stop the watch body even after completing inspections and the like. In addition, when a watch store is busy with new items arriving and the watches are slow, it can be used in a wide variety of applications, such as starting the watch once, confirming N, and then stopping the watch completely again. As an alternative technology for this function, without inserting 8 ponds,
It is also conceivable that the watch may be broken in at the time of sale, but in this case it would be necessary to open the nose cover of the watch at the time of sale, but with the present invention there is no need to open the back cover, and confidence in the quality of the watch is increased.

In addition, currently, there are clocks that do not use batteries and are powered by solar cells, etc.
There is a product that charges a capacitor using a power generation means and uses that electrical energy to pivot an electronic wristwatch (like this one)
In the case of some types of electronic watches, if the capacitor Vcw energy is not charged at all, it will take some time for the watch to start working even if charging starts due to the power generation means being busy. Therefore, if you are busy with this type of electronic watch, if you adopt the present invention, you can charge it at the time of shipment from the factory and put it in a fully stopped state, so you can start the watch immediately when you are busy at the time of sale. It is very effective because it gives a sense of trust to everyone, and even a single watch store does not need to charge the battery at the time of sale.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of an embodiment of an electronic wristwatch according to the present invention. @Figure 2 is a detailed circuit diagram of Figure 1. 1... Oscillation circuit 2... Branch circuit 3... Display device 4... Control equalization 5... Full stop circuit 6... ... External operation switch 7 ... Seat transistor 8 ... Feedback resistor transistor 9 ...
Crystal oscillator 10... Oscillation inverter 11... NOR gate 12... Clock operation switch and above

Claims (1)

[Claims] (1) An electronic wristwatch having an oscillation circuit, a frequency division circuit, and a display device, characterized in that all functions of the oscillation circuit, frequency division circuit, display device, etc. are controlled to be stopped by operating an external operation switch. electronic watch.