JPS591992B2 - Jidousyuuseidenshidenkei - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to the configuration of a digital watch or an all-electronic watch that displays time using electro-optical display means.

In particular, it relates to the processing of received external time information.

An object of the present invention is to provide a configuration that allows one-touch adjustment of time.

Another purpose is to provide a configuration for selecting necessary information from the time information transmitted from the outside, which will become more generalized when automatic correction becomes generalized. .

In recent years, there has been remarkable progress in digital clocks.
In the early stages, they only had simple functions such as displaying the hours and minutes, but in recent years, digital watches have evolved to have more complex functions.

However, as digital watches become more multifunctional, time adjustment becomes more complex, which is becoming a major obstacle to the widespread use of digital watches.

The present invention eliminates these drawbacks and provides a configuration that can be easily modified.

A detailed explanation will be given below using an example.

Fig. 1 apb shows an example of a method for receiving external time information, and Fig. 1 a shows the transmitting coil 1.
This is a method of detecting signals through mutual induction between a receiver coil 2 and a receiver coil 2, and as shown in Figure 1, a capacitor is formed by a transmitter electrode 4 and a receiver electrode 5, and the signal is detected by impedance division between the transmitter electrode 4 and the receiver electrode 5 and the gate capacitance of the inverter 3. This is what is shown.

What is shown in FIG. 2 is an example of the configuration according to the present invention, and the method shown in FIG. 1 is adopted as the method of detecting the external signal.

What is shown in FIG. 3 is a timing chart of the time information S to be transmitted and the signals in the main part of FIG.

In the circuit example shown in Fig. 2, the transmitted time information is seconds, minutes,
The time, date, day of day, month, and year data are included, and the received automatically corrected clock does not require "day of the day" data.

When the lock switch 37 is turned off, it enters a correction waiting state, and when σ of the external time information S is detected by the receiving electrode 32,
Ql becomes bi-level and the output of frequency divider 6 is 16.384
The reset signal R is synchronized with KHz and the AND gate 33
part of the clock divider 6 and the time counter 7.8,
9, 10, 11°12 are reset.

Subsequently, the output a1 of the AND gate 34 becomes bi-level, the AND gate 19 is turned on, and the correction fast-forward clock (1024 Hz) is added to the second time counter T through the OR gate 13.

Here, flip-flops 38 to 43 are correction digit selection circuits.

Next, when the external time signal 1' is received, the output a1 of the AND gate 34 becomes low level and a2 becomes bi level, so the correction fast-forward clock is stopped at the second time counter and added to the minute time counter 8. .

When the next external time signal S 2' is received, a2 becomes low level, a3 becomes bi level, and the same operation is repeated.

However, when 4' of external time signal S is received, a5
becomes bi-level, and other outputs a1 + a2 + a
3 t a4 ta6+a7 is low level, so
A fast-forward correction clock cannot be added to any time counter.

In other words, since the extra output a5 is provided, the time counter will not be corrected by unnecessary information.

In this example, the "day of the week" information is input during the a5zvl' level period.

Next, when the external time signal S 5' is received, a correction fast-forward clock is added to the month time counter 11 by the same operation as described above.

Thereafter, the same operation is repeated, and when the external time signal 7' is received, all corrections are completed, and even if other external signals are received, a1 to a7 will not go to the bi level, and O
Outputs as a normal clock are connected to each time counter by R gates 13, 14, 15, 16, 17, and 18.

Then, the lock switch is turned on and external signals cannot be received.

Next, when the lock switch is turned off again, the operation described above is repeated.

. The external time signal used in this example is used to input the time interval required for the time counter to count up to the desired time using the correction fast-forward clock used.

In other words, if you want to correct it to 30 seconds, the external time signal S
Between 0' and 1', the correction fast-forward clock 1024H
Using z gives an interval of 30/1o24 seconds.

In the same manner, 1' to 2', 2' to 3', . . . are modified by giving desired time intervals.

As described above, if the configuration according to the present invention is applied and external time information is unified, it will be possible for an automatically correcting watch to easily select only the necessary information, and it will be possible to select only the necessary information according to the watch to be corrected. This eliminates the need to change external time information, which brings considerable advantages to the widespread use of self-correcting electronic watches.

This is a very effective configuration, especially when time information is widely distributed to the public through telephone lines or the like.

Also, there is not only one piece of unnecessary information as mentioned above, but also two or three pieces of information.
However, it is easy to select.

Since it is possible to easily select information, not only time information but also alarm setting time, rate adjustment command information, etc. can be displayed at the same time.
Even if it is sent from outside, it can be selected using the same operation.

In addition to the method of selecting time information as described above, a certain degree of selection is also possible by sequentially transmitting information starting from the most frequently used information.

For example, if external time information is sent in the order of seconds, minutes, hours, date, day of the week, month, and year, a clock that does not require "year" information will be If a system is adopted in which the circuit does not operate even if a signal is input after the information of ``Year'' is received, unnecessary ``year'' information will not be input.

The above description has been about an automatically correcting electronic clock that is configured with an asynchronous counter, but it can also be similarly adopted in a clock that has a synchronous counter.

[Brief explanation of drawings]

Fig. 1: An example of the combination of an external time information signal and an automatically correcting electronic clock. a... Mutual inductive coupling method, b... Impedance division method, 1... Transmitting coil, 2...
...Reception coil, 3...Inverter,
4... Transmitting electrode, 5... Receiving electrode. Fig. 2: An example of a circuit of an automatically correcting electronic timepiece employing the method according to the present invention. 6... Frequency divider circuit, 7... Second counter
, 8... Minute counter, 9... Hour counter, 10... Date counter, 11...
...month counter, 12...year counter,
13, 14, 15, 16, 17゜18.35...
・OR gate, 19, 20, 21゜22.23.2
4.33.34...AND gate, 25.2
6, 27, 28, 29, 30... decoder and display circuit, 31... oscillation circuit, 32...
...receiving electrode, 36... seconds reset switch,
3T...Lock switch, 38-43...
...Selection circuit. Figure 3: Timing chart of external time information signal S and Figure 2: Main part signals

Claims (1)

[Claims] 1. In electronic time, which consists of an oscillator serving as a time reference, a frequency divider that divides the signal of the oscillator, a plurality of time counters that count the output signals of the frequency divider, and display means, the time is transmitted from outside the watch body. A receiving means for receiving information, a selection circuit for selecting a time digit to be corrected based on the time information, and a plurality of gate circuits for introducing time correction signals into the plurality of time counters, the selection circuit comprising: It has a number of output signals corresponding to the time digits of the time information, and the output signals are input to the gate circuits of the corresponding time digits to open and close the time correction signals, and the output signals are input to the gate circuits of the corresponding time digits to open and close the time correction signals, and the output signals are input to the gate circuits of the corresponding time digits to open and close the time correction signals, and the output signals are input to the gate circuits of the corresponding time digits to open and close the time correction signals. An automatically correcting electronic timepiece characterized in that output signals for which there is no corresponding time counter among the signals are not input to any gate circuit.