JPS6324191A - timer device - Google Patents

Abstract

PURPOSE:To use a timer function without setting any timer time by automatically setting timer time (e.g. 60, 45, or 30min) which is high in use frequency when a timepiece function is switched to the timer function. CONSTITUTION:With a switch B pressed, the timer time is set to 60min and 00sec by an FF 23, an AND gate 24, an AND gate 9, an AND gate 21, and an OR gate 10 when the timepiece function is switched to the timer function. Here, a switch A is pressed and then an FF 22 sends a pulse of 32Hz to a frequency dividing circuit 2 from an AND gate 1 to hold a write signal H at H for a one-word period, thereby stores a memory circuit 18 consisting of a shift register with the stored information of 60min and 00sec by the circulation loop consisting of a shift register 5, a 12-bit shift register 11, AND gates 8 and 9, and an OR gate 10. An AND gate 12 judges >=10, and AND gate 13 judges >=6, and an AND gate 14 judges >=7 to send a signal to an FF 15. Consequently, when a 1sec signal is sent to a subtracting circuit 4 at the time of 60min 00sec to display 59min 59sec.

Description

[Detailed description of the invention] The present invention relates to an electronic timer device.

The present invention provides a timer device that can be incorporated into watches, calculators, and the like.

A clock is suitable for providing correct time information for the current time, but for example, if you have an appointment in an hour from now, it may be necessary to provide time information that indicates how many minutes are left for the specified time. It is not possible to give a quick answer.

A timer device can be considered as a method to solve such problems. However, the timer device has the disadvantage that it is necessary to first set the timer time, and this time setting takes time. Furthermore, when using the same timer time repeatedly, the timer time must be set again.

The present invention solves the above-mentioned drawbacks, and when switching from another function to the timer function, it is automatically set to a frequently used timer time (for example, 60 minutes, 45 minutes, 30 minutes). It is. Furthermore, the present invention provides a timer device that is provided with a memory circuit so that the timer time can be used repeatedly. Furthermore, when the timer time reaches 00 minutes 00 seconds, the display remains as it is, and the counting content starts counting down again as a repeating timer, and after a certain period of time, for example 4 seconds, the display is set to 0.
To provide an extremely user-friendly timer device by emphasizing to the user that the timer time has finished counting and making it easy to understand the operation of starting the next count by setting the actual count value from 0 minutes 00 seconds. The purpose is to

The present invention will be explained below based on embodiments.

FIG. 1 shows an embodiment of the timer device of the present invention, and is a circuit diagram of the timer device portion of a timer with a clock. Figure 2 shows the timing waveforms of Figure 1. FIG. 3 shows the display contents of the display section of the clock-equipped timer shown in FIG. 1.

In FIG. 1, reference numeral 2 denotes a frequency dividing circuit, which divides the frequency of a 32 Hz signal inputted through an AND gate 1 to output an IHz Hz signal. Here, the output s/s of the flip-flop 22 controlled by the start/stop switch A is input to the AND gate 1, and the transmission of the 32 Hz signal is controlled. The I Hz signal is differentiated by AND gate 3,
It is input to the subtraction circuit 4.

The 4-bit shift register 5, the AND gate 8, the AND gate 9, the 12-bit shift register 11, and the subtraction circuit 4 constitute a closed loop, and store time information in a circular manner. hand,
Subtract one second from the time information. and gate 12
．． 13.14 detects values of 10 or more, 6 or more, and 7 or more from the state of the 4-bit shift register 5, and AND gates 16 and 17 detect the digits of 1 second and 1 minute, respectively.
, set the 10 second and 10 minute digits to 5. ANDGATE 12.13.14 and ANDGATE 16.1
7 performs carry control when subtracting, such as from 60 minutes to 59 minutes or from 60 seconds to 59 seconds. The timer circuit is configured as described above.

The memory circuit 18 is a circuit for storing timer time, and reads and stores closed loop time information from the 4-bit shift register 5 in response to a write signal. Moreover, the time information of this memory circuit 18 is transmitted by the sending signal E.
is written to the 12-bit shift register 11,
Time information can be transferred in a closed loop. Incidentally, since the time information in the memory circuit 18 becomes blank after being read, the same information is written again from the 4-bit shift register 5 immediately after being read. The flip-flop circuit 23 switches between time mode and timer mode, and is controlled by switch B. A zero detection circuit 19 detects that the remaining time of the timer circuit is 00 minutes 00 seconds. 20 is a timer, which produces an output four seconds after the output of the zero detection circuit 19.

In the figure, signals D1, D2, D3, and D4 are digit signals representing digits of 10 seconds and 10 minutes, respectively, and tl, F% j3, and L are bit signals that represent the bits within each digit. This is a signal representing

Next, the operation of this embodiment will be explained.゛Flip-flops F and P (hereinafter abbreviated as F and F) 23 are mode switching F and F, and switch between the clock function and the timer function,
This is so that the display section and external operation members (hereinafter referred to as switches) A and B can be used in common for both functions. FIG. 3a shows the state of the clock function, and 12:34 is displayed. In this state, when switch B is pressed, F, F
The output σ of 23 becomes H, and the AND gate 24 turns it into 1.
A word signal is generated, and the AND gate 9 sends a set signal for one word, and the AND gate 21 sends a set signal for one word.
A signal is sent to the OR gate 10 to set the minute digit to 6.

As a result, when switching from clock function to timer function 60
Set to minute 00 seconds. Figure 3 shows the contents of this display. In this state, switch A starts. It becomes stop switch s/s.

FIG. 3C will be described to explain the present invention.

When switch 8 is pressed, the output Q of F and F22 becomes H, and AND gate 1 sends 32Hz to frequency divider circuit 2.

Furthermore, the write signal becomes ``H'' for one word, and the 4-bit shift register 5 and the 12-bit shift register 1
1, the information of 60 minutes and 0 seconds stored in a circular loop consisting of AND gates 8, 9, and OR gate 10 is stored in a memory circuit 18 consisting of a shift register. When the frequency dividing circuit 2 sends out a signal multiplied by I Hz, it is differentiated by the AND gate 3 and sent to the subtraction circuit 4. and gate 12 is 1
The AND gate 13 makes a judgment of 6 or more, the AND gate 14 makes a judgment of 7 or more, and F, F 15
send a signal to. AND gate 16 is 9 for 1 second and 1 minute digits
The gate to set, AND gate 17 is 10 seconds, 10
This gate sets the minute digit to 5. This results in 60
When a 1 second signal is sent to the subtraction circuit 4 from minutes oo seconds, 59 minutes 59 seconds is displayed. Similarly, Figure 3 C is 21 minutes 32 minutes.
At the second, switch A is pressed to set the stop state, and switch A is pressed again to set the start state. This allows repeated start and stop operations.

Next, FIG. 3d, which best represents the features of the present invention, will be explained. In this case, the timer is used continuously for 45 minutes instead of 60 minutes. First, set it to 45 minutes. The embodiment shown in FIG. 1 has a keyboard (not shown), and allows setting using the numeric keys on the keyboard.

When Kim is set, the clear signal ■ becomes -L' between one word of the minute digit, inhibiting the minute information from the shift register 5 and sending the information of 4 from the set signal G to the OR gate 10. It will be done. Therefore, the display will be 04 minutes.

Next, when the key [E] is set, the clear signal I becomes "L" for one word of the minute digit, prohibiting the minute information from the shift register 5, and the information of 5 is sent to the OR gate 10 from the set signal G. Sent. Further, the shift signal H becomes "H" for one word of the 10th digit, and the information of 4 from the 4-bit shift register 6 is sent to the AND gate 9.

Therefore, the display will be 45 minutes and the set will end.

In this state, when the start state is set, a down count starts. This 45 minute timer period is stored in the memory circuit 18 in the same manner as in FIG. 3C. 00 minutes O
When the time reaches O seconds, the 00 detection circuit 19 operates and sends a signal to the 4 second timer circuit. Since the 4 second timer circuit 20 holds the display contents for 4 seconds, 00 minutes 00 seconds is displayed. However, the colon is blinking for 1 second because it is counting during this time.

At 00 minutes and 00 seconds, the next two-word write signal becomes H, and the first one-word send signal E becomes H. As a result, the contents of the memory circuit 18 for 45 minutes are sent to the shift registers 5 and 11.
The 45 minutes of information sent to is written into the memory circuit 18 again as the second word. This allows you to use the timer continuously without having to reset it.

When the information in the shift register 5.11 reaches 44 minutes and 56 seconds, the 4-second counter 2° stops and the display returns to the conventional display method.

You can repeat this as many times as you like in a row. If you want to set the seconds digits, you can set them in the same way as the minutes.

Next, FIG. 3e will be explained. In this case, the timer that has been set and used once is desired to be used repeatedly at the next opportunity after the timer has been used. When the timer time reaches 00 minutes OO seconds and the use is once finished and the stop state is started, the frequency divider circuit 2 is reset and the timer time of the previous use stored in the memory circuit 1 is reset. In the same manner, the information is written to the shift register 5.11, and this information is stored again in the memory circuit 18, which has become blank after transmitting the time information.

A down count is performed in the same manner thereafter.

This embodiment does not have a reset switch, but if it does have a reset switch, it is desirable to display the timer time when it is reset.

The present invention sets the timer time when the power is turned on, rather than setting it when switching from another function to the timer function, so that the timer function alone has great value.

Furthermore, it is also possible to freely change the set time.

As described above, in the present invention, when the timer time reaches 00 minutes 00 seconds, the display is left in the same state, and the counted contents are repeated as a timer and starts counting down again.
After a certain period of time, for example 4 seconds, the display changes from 00 minutes OO seconds to the actual counted value, so you can immediately start counting down again as a repeat timer without having to set a blank time after counting, and you can also start counting down again as a repeat timer when counting is finished. The user can reliably recognize that the This results in
Although the timer device of the present invention does not provide any blank time, it is very easy to use.

[Brief explanation of the drawing]

FIG. 1 is a circuit diagram of a timer device showing an embodiment of the present invention. FIG. 2 is a timing waveform diagram of FIG. 1. FIG. 3 is a diagram showing the display contents of the timer device of FIG. 1. that's all

Claims (1)

[Claims] 1. In a timer device having at least one function in addition to the timer function, when switching from another function to the timer function, a set signal to set the set time is generated. Features a timer device. 2. In a timer device having an external operating member, a timer circuit, and a memory circuit, the set timer time is stored in the memory circuit, and is preset in the timer circuit by operating the external operating member. A timer device.