JPH0728485A - Alarm device - Google Patents

Abstract

PURPOSE:To provide an alarm device which expresses plural sounds and sound patterns employing a single buzzer. CONSTITUTION:The device is provided with two oscillators 1 and 2 which generate different oscillation frequencies and two frequency divider circuits 3 and 4 which operate based on separately inputted control signals and frequency divide the oscillator output that only corresponds to the specified number of frequencies. Moreover, the device is provided with a logic circuit 11 which selects the output of one circuit 3 or 4 within each of the two frequency divider circuits 3 and 4 by an external instruction and a buzzer 13 which operates based on the output of the circuit 11 and outputs different interval vibration sounds in accordance with the output frequency.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an alarm device,
Particularly, the present invention relates to an alarm device suitable for a printer device that generates a plurality of buzzer sounds and the like.

[0002]

2. Description of the Related Art Conventionally, a printer device expresses a state of the printer device, for example, an error state, a usable state, or a change in the state as an alarm with one kind of buzzer sound (for example, JP-A-62-62). 216768).

[0003]

However, since only one type of buzzer sound is generated in the conventional printer,
There is an inconvenience that the state of the printer device when the buzzer sound is generated cannot be distinguished until the display unit of the printer device is seen. Many other alarm systems are similar.

[0004]

SUMMARY OF THE INVENTION It is an object of the present invention to improve the disadvantages of the conventional example, and in particular to provide an alarm device which expresses a plurality of sounds and a sound pattern with one buzzer.

[0005]

According to the present invention, n oscillators having different oscillating frequencies and the n oscillators are individually provided so as to operate and designated based on a control signal input separately. N frequency dividing circuits for dividing the corresponding oscillator output by the number of times, and a logic circuit for selecting one frequency dividing circuit output of each of the n frequency dividing circuits by an external command,
A buzzer that operates in response to the output of the logic circuit and that outputs a vibrating sound with a different pitch according to the output frequency is provided. This aims to achieve the above-mentioned object.

[0006]

[Operation] The oscillator 1 and the oscillator 2 have different oscillation frequencies, and output as an input signal of the frequency dividing circuit 3 and the frequency dividing circuit 4. The frequency dividing circuit 3 and the frequency dividing circuit 4 frequency-divide the input signals from the oscillator 1 and the oscillator 2 by the number of times specified by the frequency determination signals 5 and 6 controlled by the CPU or the like, and output the frequency-divided signals. Output signals 14 and 15 of the frequency dividing circuits 3 and 4
Is input to the logic circuit 11.

The logic circuit 11 is effective for the buzzer 13 in which the output of either the output signal 14 or 15 of the frequency dividing circuit is changed by the voice pattern signal 12 controlled by the CPU or the like according to the input frequency. To do so. The frequency determination signals 5 and 6 control the pitch (pitch) of the sound, and the voice pattern signal 12 controls the sound pattern.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. The embodiment shown in FIGS. 1 and 2 is based on two oscillators 1 and 2 having different oscillating frequencies, and a control signal which is individually provided corresponding to the two oscillators 1 and 2 and is input separately. Are operated to divide the corresponding oscillator output by a specified number of times, and one of the two frequency dividing circuits 3 and 4 is divided by 3 or 4. A logic circuit 11 for selecting the output of 1 according to an external command and a buzzer 13 that operates according to the output of the logic circuit 11 and outputs a vibrating sound of a different pitch according to the output frequency.

The logic circuit 11 specifies the vibration frequency of the buzzer 13 by the control signal input to each of the two frequency dividing circuits 3 and 4, and the buzzer having a different pattern according to an external command input separately. It has a function to output signals.

This will be described in more detail. FIG. 1 shows a buzzer circuit of the printer device in this embodiment. Although two oscillators are used in this embodiment of FIG. 1, three or more oscillators may be encountered.

The oscillators 1 and 2 have different oscillation frequencies and output as input signals to the frequency dividing circuit 3 and the frequency dividing circuit 4. The frequency dividing circuit 3 and the frequency dividing circuit 4 are the oscillator 1
Also, the input signal from the oscillator 2 is divided by the number of times specified by the frequency determination signals 5 and 6 controlled by the CPU or the like and output. Output signals 14 and 1 of the frequency dividing circuits 3 and 4
5 is one NOT circuit 8 and three NAND circuits 7,
It is input to the logic circuit 11 composed of 9 and 10.

The logic circuit 11 is effective for the buzzer 13 in which the output of either the output signal 14 or 15 of the frequency dividing circuit is changed by the voice pattern signal 12 controlled by the CPU or the like according to the input frequency. To do so. The frequency determination signals 5 and 6 control the pitch (pitch) of the sound, and the voice pattern signal 12 controls the sound pattern.

For example, as shown in FIG. 2, the waveform of the output signal 14 of the frequency dividing circuit 3 is a), the waveform of the output signal 15 of the frequency dividing circuit 4 is b), and the voice pattern signal 12 input to the logic circuit 11 is shown. Is c), the waveform of the signal 16 input to the buzzer 13 is d). In this way, the pitch and the sound pattern of the oscillating sound of the buzzer 13 whose pitch changes according to the input frequency change.

In the embodiment shown in FIG. 1, the number of oscillators and the number of frequency dividing circuits are each two, but the number may be three or more (n). In this case, the logic circuit 11 may correspond to a plurality (n) of three or more.

[0015]

Since the present invention is constructed and functions as described above, it is possible to generate a plurality of sounds using one buzzer. It is possible to provide an alarm device which is excellent in the past and which can be discriminated by the above.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of the present invention.

FIG. 2 is a timing chart showing the operation of FIG.

[Explanation of symbols]

 1, 2 oscillator 3, 4 frequency divider circuit 11 logic circuit 13 buzzer

Claims (2)

[Claims] 1. An n number of oscillators having different oscillation frequencies, and an oscillator output which is provided corresponding to each of the n number of oscillators, operates based on a control signal input separately, and corresponds to a specified number of times. Of n frequency dividing circuits, a logic circuit that selects one of the frequency dividing circuits of the n frequency dividing circuits by an external command, and operates according to the output of the logic circuit. An alarm device comprising: a buzzer that outputs a vibrating sound having a different pitch according to an output frequency. 2. The logic circuit specifies the vibration frequency of the buzzer by a control signal input to each of the n frequency divider circuits, and outputs a buzzer signal having a different pattern according to an external command input separately. The alarm device according to claim 1, wherein the alarm device has a function of outputting.