JPS61191982A - Alarm timepiece - Google Patents

Abstract

PURPOSE:To generate an alarm sound positively, by mounting a vibration sensor at a part of a time piece to provide a control circuit for forbidding the stopping operation of an alarm sound according to an output generated therefrom with the action of an alarm switch. CONSTITUTION:While with a sound locking SW (switch)9 closed, an alarm is set, as an alarm time is reached, upon the closing of an alarm SW8, an alarm circuit 10 operates to generate 11 an alarm sound. On the other hand, with the closure of the SW8, a piezoelectric element 1 responses to generate an output from an amplifier 5. But an one-shot circuit 6 is kept disable only by a fixed time by an output from a delay circuit 12 and at this time, no output from the circuit 6 will generate and hence, the snooze state will not enter. But after the stoppage of an output from the circuit 12, a pulse is generated from the circuit 6 by tapping a part of a timepiece to set the snoozing with a circuit 7. After a fixed time, an alarm sound is generated. Then, the alarm is stopped by opening the SW9.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an alarm clock that stops the alarm sound by striking the clock.

[Prior Art] The applicant of the present application previously filed an application for a device in which a vibration sensor is fixed to a part of a watch and a snooze function is activated by the output of the vibration sensor generated by hitting the watch frame (Utility Application No. 59-35543).
No.).

[Problems to be Solved by the Invention] In the above device, when the alarm switch is closed at the alarm time, the vibration sensor is sensitive to the mechanical shock.
There was a problem where the alarm went into snooze mode and the alarm did not sound.

The present invention is designed to prevent malfunctions caused by the operation of an alarm switch.

[Means for Solving the Problems] The present invention includes a vibration sensor attached to a part of the watch, and a control circuit that prohibits the operation of stopping the alarm sound due to the output generated from the vibration sensor in conjunction with the operation of the alarm switch. It is something that

[Example] In Fig. 1, 1 is a piezoelectric element as a vibration sensor attached to a part of a watch, 2 is a capacitor, 3.4 is a resistor,
5 is an amplifier, 6 is a one-shot circuit, and 7 is a snooze circuit. 8 is an alarm switch, 9 is a stop switch,
10 is an alarm circuit, 11 is a sounding device, and 12 is a delay circuit constituting a control circuit.

In the above configuration, when the alarm time comes and the alarm switch 8 is closed while the ring stop switch 9 is closed and the alarm is set, the alarm circuit 10 is activated and the sound generating device 11 generates an alarm sound.

On the other hand, when the alarm switch 8 is opened, the piezoelectric element 1 is sensitive, and the amplifier 5 generates an output. However, the one-shot circuit 6 is kept in an inoperable state for a certain period of time by the output of the delay circuit 12. This time is set to be slightly longer than the time until the output from the piezoelectric element 1 stops when the alarm switch 8 is opened.

Therefore, at this time, no output is generated from the one-shot circuit 6, and there is no possibility of entering the snooze state by mistake. After the output from the delay circuit 6 has stopped, by tapping a part of the clock, a pulse is generated from the one-shot circuit 6, and a snooze is applied by the snooze circuit 7. This causes the alarm to sound again after a certain period of time. To completely stop the alarm sound, open the stop switch 9.

FIG. 2 shows another embodiment. In this example, the output from the alarm circuit 10 is waveform-shaped by a waveform shaping circuit 13, and this is used as an enable signal for the one-shot circuit 6. That is, in the alarm circuit 10, there is a delay time (delay caused by a chattering removal circuit, etc.) after the alarm switch 8 closes until the alarm signal is generated, and the output of the piezoelectric element 1 normally stops during this delay time. It is.

Therefore, by enabling the one-shot circuit 6 after the alarm signal is generated, malfunction can be prevented.

FIG. 3 shows still another embodiment.1. Stop ringing switch 9
This shows the case where it is used for something that can also be snoozed. In the figure, 14 is an inverter, and 15 is a timer circuit, which performs a snooze when the stop switch 9 is opened within a set time, and completely stops the sound when it is closed for more than the set time. 16 is a flip-flop circuit, 17 is an IEH gate circuit, and one is a delay circuit similar to that shown in FIG.

In the above configuration, when the alarm switch 8 is closed while the stop switch 9 is closed, the alarm circuit 1
An output of 0 generates an alarm sound. While the piezoelectric element 1 is generating an output due to the opening of the alarm switch 10, the one-shot circuit 6 is in an inoperable state due to one delay circuit, and no pulse is generated from its output.
Does not cause malfunction.

When snoozing, the user strikes the clock and uses the output of the piezoelectric element 1 to generate a pulse from the one-shot circuit 6, thereby setting the output of the gate circuit 18 to "O" for a short period of time. This triggers the flip-flop circuit 16, stops the alarm sound, and activates the snooze circuit 7. The pulse width of the one-shot circuit 6 is made shorter than the set time of the timer circuit 15, and no output is generated from the timer circuit 6. When the snooze circuit 7 generates an output after a certain period of time, the flip-flop circuit 16 is reset and the alarm sound is generated again.

The snooze setting can also be performed using the snooze switch 9. That is, by opening the ring stop switch 9 for a shorter period of time than the set time, the same operation as described above can be performed.

If you want to completely stop the alarm sound, press the stop switch 9.
This is to keep it open.

As a result, an output is generated from the timer circuit 15, the flip-flop circuit 16 is reset, and the snooze circuit 7 is held in an inactive state.

FIG. 4 is an improved version of the example shown in FIG. 2, in which the one-shot circuit 6 in FIG. 2 is removed. In Figure 4,
20 is a snooze time timer circuit, 21 is a flip-flop circuit, and 22 is a gate circuit. , 23-25 are transistors, 26-30 degrees 308 are resistors, and 31-33 are capacitors.

Next, the operation will be explained. When the alarm switch 8 closes and the terminal a becomes < 1 (1II) as shown in Fig. 5 a,
An alarm signal is generated from the alarm circuit 10 with a delay (due to the delay of the chattering removal circuit, etc. in the alarm circuit) as shown in FIG. As described in the example of FIG. 2, this delay time is longer than the generation time of the output from the piezoelectric element 1 (FIG. 5C) when the alarm switch 8 is opened. Therefore, while the above output from the piezoelectric element 1 is being generated, the output of the alarm circuit 10 is held at O'', the base of the transistor 25 is held at 011 as shown in FIG. 5d, and the transistor 25 is turned off. Retained. Therefore, snooze is not applied by the output of the piezoelectric element 1.

When an alarm signal as shown in FIG. 5 is generated from the alarm circuit 10, an alarm sound is generated from the sound generating device 11 and a minute signal as shown in FIG. 5d is generated at the base of the transistor 25.

Therefore, when the user taps the clock to put the snooze on, the piezoelectric element 1 generates an output as shown in FIG. 5C.

This turns transistor 24 off and when the base input of transistor 25 exceeds the threshold level as shown in FIG. 5d, transistor 25 turns on. An alarm signal (an intermittent signal) is supplied to the base input of the transistor 25, and the transistor 25 repeatedly turns on and off, but the terminal e is inverted to almost 0% by the capacitor 33 as shown in FIG. 5e. 33 is discharged and charged as the transistor 25 turns on and off, but since the discharging time constant is much larger than the charging time constant, the terminal e is held at approximately "O". When reversed to “O”, the flip-flop circuit 21 is reset and the alarm circuit 10
The alarm signal from stops. Therefore, the alarm sound stops and the transistors 24 and 25 are turned on and off, respectively, and return to the initial state.

On the other hand, the timer circuit 20 operates by the above-mentioned reset of the two flip-flop circuits and starts counting the snooze time. Then, when a certain period of time has passed, the timer circuit 20
An output is generated, the flip-flop circuit 21 is set, and the alarm sound is generated again.

According to this example, there is no need for a delay circuit, a waveform shaping circuit, etc., and the simplest circuit configuration is sufficient.

Note that the present invention is not limited to the above example, and various modifications are possible. For example, the sensitivity of the amplifier 5 may be reduced for a certain period of time after the alarm switch is closed. Further, although the one-shot circuit is controlled in each of the above-mentioned units, the amplifier 5, snooze circuit 7, alarm circuit 10, etc. may be temporarily rendered inactive. In general, one-shot circuits may be used in place of the delay circuits 12 and 19 in FIGS. 1 and 2.

Further, a delay circuit may be provided on the output side of the alarm switch to delay the opening output.

[Effects] According to the present invention, it is possible to prevent the vibration sensor from stopping the alarm sound due to the operation of the alarm switch, and it is possible to reliably generate the alarm sound.

[Brief explanation of the drawing]

FIG. 1 is an electric circuit diagram showing one embodiment of the present invention, and FIG.
4 is an electric circuit diagram showing other embodiments, and FIG. 5 is a voltage waveform diagram for explaining the operation of FIG. 4. DESCRIPTION OF SYMBOLS 1... Piezoelectric element, 7... Snooze circuit, 8... Alarm switch, 10... Alarm circuit, 11...
Sound generation device, 12... Delay circuit, 13... Waveform shaping circuit, 18... Gate circuit, 19... Delay circuit, 24
．． 25...Patent applicant for transistors and above Seiko Co., Ltd. Figure 3 Figure 4

Claims (1)

[Claims] An alarm device that generates an alarm sound when the alarm switch operates; a vibration sensor that is attached to a part of the watch and generates an output and stops the alarm sound when vibration is applied to the watch; and the alarm switch. an alarm clock comprising a control circuit that prohibits an operation of stopping an alarm sound due to an output generated from the vibration sensor in conjunction with the operation of the alarm clock.