# US 2014/0191860 A1 · Operation-sound generator

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- Number: US 2014/0191860 A1
- Document ID: US20140191860A1
- Status: Published application
- Kind: A1
- Application number: 14/236,447
- Filed: 2012-07-31
- Published: 2014-07-10
- Earliest claimed: 2011-08-01
- Assignees: Yazaki Corporation
- Inventors: Hatsushi Akamine
- Web page: https://patentgrep.com/patent/US20140191860A1

## CPC

- B06B 1/0215: {for generating pulses, e.g. bursts of oscillations, envelopes}
- B60Q 1/34: for indicating change of drive direction (B60Q1/22 takes precedence)
- B60Q 1/381: {with several light sources activated in sequence, e.g. to create a sweep effect}
- B60Q 9/00: Arrangement or adaptation of signal devices not provided for in one of main groups B60Q1/00 - B60Q7/00 {, e.g. haptic signalling}
- B06B: METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, {e.g.} FOR PERFORMING MECHANICAL WORK IN GENERAL (for particular applications, see the relevant subclasses, e.g. B07B1/40, B23Q17/12, B24B31/06; measurement of mechanical vibrations G01H; in direction finding, locating, distance or velocity measuring G01S; {generating seismic energy G01V1/02}; control of mechanical vibrations in general G05D; sound-producing devices, e.g. bells, sirens, whistles G10K, {e.g. methods or devices for transmitting, conducting, or directing sound in general G10K11/00}; generation of electrical oscillations H03B; electromechanical resonators in general H03H; electromechanical transducers {for communication techniques, e.g. microphones, speakers} H04R)
- B60Q: ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL

## Abstract

An operation-sound generator which can output an operation-sound similar to a hit-sound of a mechanical relay with sound pressure in which a driver is recognizable is provided. A microcomputer supplies a plurality of first pulse sequences to the buzzer at intervals during a lighting period of turning on the direction indicator lamp or the hazard lamp, each of the first pulse sequences having a pulse number differing from each other, a same pulse width, and a same duty, in an order gradually reducing the pulse number. The pulse number of each of the first pulse sequences is set so that the output of each of the first pulse sequences is finished before stationary vibration of the buzzer is performed. Furthermore, after the output of the first pulse sequence is finished, the microcomputer starts the output of next the first pulse sequence before the vibration of the buzzer is stopped.

## Claims

### Claim 1

An operation-sound generator having a buzzer outputting an operation-sound synchronized with a blinking of a direction indicator lamp or a hazard lamp comprising:
a pulse supply device supplying a plurality of first pulse sequences to the buzzer at intervals during a lighting period of turning on the direction indicator lamp or the hazard lamp or a non-lighting period of turning off the direction indicator lamp or the hazard lamp, each of the first pulse sequences having a pulse number differing from each other, a same pulse width, and a same duty,
wherein the pulse number of each of the first pulse sequences is set so that the output of each of the first pulse sequences is finished before stationary vibration of the buzzer is performed, and
wherein after the output of the first pulse sequence is finished, the pulse supply device starts the output of next the first pulse sequence before the vibration of the buzzer is stopped.

### Claim 2 (depends on 1)

The operation-sound generator as claimed in claim 1, wherein the pulse supply device outputs the plurality of the first pulse sequences in an order gradually reducing the pulse number.

### Claim 3 (depends on 1)

The operation-sound generator as claimed in claim 1, wherein the pulse supply device supplies the plurality of the first pulse sequences during one of the lighting period and the non-lighting period, and wherein after only one second pulse sequence having a predetermined pulse number is outputted during the other of the lighting period and the non-lighting period, the supply of the pulse is stopped until the other period is finished.

### Claim 4 (depends on 2)

The operation-sound generator as claimed in claim 2, wherein the pulse supply device supplies the plurality of the first pulse sequences during one of the lighting period and the non-lighting period, and wherein after only one second pulse sequence having a predetermined pulse number is outputted during the other of the lighting period and the non-lighting period, the supply of the pulse is stopped until the other period is finished.