JPH0273296A - Chord and superdirectional horn generating device - Google Patents

Abstract

PURPOSE:To generate a horn which gives no unpleasant sense by providing at least one piece of more of oscillators and controlling its level and frequency. CONSTITUTION:An oscillator 1 is constituted of a frequency synthesizer and electronic parts, and generates (do), (mi) and (sol) sounds which give no unpleasant sense to a man. Its level and frequency are controlled by a controller 2, and a signal is generated. The obtained signal is amplified up to an object level by an amplifier 3, and sent to an external sound volume generator 4. A dispersed chord obtained by combining said chords controls its sound volume, and a horn which gives no unpleasant sense is generated. This horn is sent to the outside from the generator 4, and a voice transfer system for informing the existence to the other party is formed. Also, a voice synthesizing IC is used for the oscillator 1, a word for giving no unpleasant sense is made, and it is also possible to generate it to the outside.

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Industrial Application Field This invention relates to an audible alarm system, and mainly relates to an automobile horn system.

(b) Prior Art and Purpose of the Invention The horn generators commonly used in automobiles and bicycles only emit a horn sound.
It ignores human emotions and causes discomfort to many people by emitting a honking sound.

From this perspective, the present invention provides a horn sound generating device that does not cause extreme discomfort to general motor vehicles and bicycles,
It is intended to be used in conjunction with the currently used horn sound generator, and to use the right person in the right place.

Additionally, a device that uses ultrasonic waves to generate sound only in a specific range can be used to prevent noise without affecting the surroundings.

(C) Embodiment FIG. 1 is a block diagram showing the basic configuration of the present invention, in which the oscillator 1 is composed of a frequency synthesizer and electronic components, and the controller 2 controls the level, frequency, etc. of the oscillator 1. do.

Amplifier 3 amplifies the signal obtained from oscillator 1 to a desired level and sends it to external volume generator 4.

FIG. 2 is a block diagram showing one example of the present invention, in which one frequency synthesizer 5 produces (C) tone 0, (Mi) tone m, (G) tone.
Sound S is generated, amplified by amplifier 3, and sent to speaker 4 to simultaneously generate sound S.

This (C) (Mi) (G) sound is known as a sound that does not cause discomfort to humans.

FIG. 3 shows the case of distributed chord generation in which signals of the above (C), (E), and (G) tones are generated sequentially with a time difference.

Sounds made of chords, especially arpeggios, are soft C. (Do) (Mi) (So) In the case of ten (Do) + (Mi), (C) and (Mi) are single notes and the volume is lowered, and (G) + (
If the volume is set to the specified level with do, do, or mi, there will be a low-level warning at the beginning, which can reduce discomfort.

If you want to use it repeatedly to increase the warning effect, make sure that (G) + (C) and (Mi) are used at the specified volume from the second time onwards.

It is also a good idea to use speech synthesis 1C in the oscillator shown in FIG. 1 to generate words that will not cause discomfort to the other party and generate them externally.

Also, using a blocking oscillator as the oscillator in Figure 1, birds,
It is also good to generate animal sounds. The voice of a small bird, the voice of a cuckoo, etc., like the synthesis of human voices, may give off a feeling of discomfort or repulsion in some cases, so care must be taken in how they are used.

Figure 4 shows another embodiment in which the oscillator 1 is 20Kt.
- It is divided into J, z oscillator A and 20.4.40 KHz oscillator B, each amplified and sent to ultrasonic transducers C and D. Then, each ultrasonic transducer generates an ultrasonic wave in its respective directivity range c-d, creating a mutually overlapping portion e, and a 440 Hz beep 1 to sound is generated in this range. Therefore, the 4401-1z beat sound can be generated only at a specific target location. The reason for selecting 440 Hz for the generated sound is (a) to create sound.

In addition, the treble of about 7000H2 is 20 to 401- (AM with Z
The modulated version is effective at short distances, so it can be used while spinning at low speeds on the sidewalk.

[Brief explanation of the drawing]

Fig. 1 is a block diagram showing the basic configuration of a horn generating device according to the present invention, Fig. 2 is a block diagram of an embodiment of the present invention, and Fig. 3 shows the time difference between (C), (Mi), and (G) sounds. FIG. 4 is a block diagram of an apparatus for transmitting certain selected sounds to a specific area. Figure L Figure 2 1...Audio oscillator, 2...Controller φ11. 3...Amplifier, 4...Volume generator. Figure 3

Claims (1)

[Claims] 1. Using at least one oscillator of an audio frequency,
A chord and super-directional horn generating device characterized by an audio transmission system for generating a horn sound that does not cause discomfort and informing the other party of the presence of the horn. 2. The chord and super-directional horn generating device according to claim 1, which generates a horn sound by synthesizing sounds using two or more oscillators. 3. The chord and ultrasonic wave according to claim 1, which uses two or more oscillators that generate ultrasonic signals, superimposes each other's directivity to generate a beat sound, and transmits sound to a specific target range. Directional horn generator.