爆竹声电子放音装置 专利CN2067447UA类

永连软件系统工程公司  2017-1-31 23:39
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本实用新型涉及一种爆竹声电子放音装置,适用于婚嫁迎娶、节日喜庆时渲染热烈欢乐气氛。本实用新型主要由放音电路、放大器、扬声器等组成,其特征是其放音电路采用了计算机语言处理技术的电子放音电路,并在该电子放音电路的语言处理器上接一循环放音控制器,从而只要接通电源就可连续循环地放出爆竹声,它具有体积小、可靠性高、音响效果好、使用方便、能循环放音等优点。 说明

本实用新型涉及一种爆竹声电子放音装置,适用于婚嫁迎娶、节日喜庆时模拟放爆竹,渲染热烈的欢乐气氛。

放爆竹是我国人民表示喜庆的传统做法,但极易引起火灾,造成人员伤亡、财产损失,因而目前许多大城市均颁布了市区禁止放爆竹的规定,于是一种能模拟放爆竹而又安全的电子爆竹便应运而生。目前有种电子爆竹是在一装饰性容器(如宫灯)内装有爆竹声放音装置,并在此容器下挂一串模拟鞭炮。该爆竹声放音装置由放音电路、放大器和扬声器三个基本部分组成,其中放音电路由一个录音机芯上装一盘录有爆竹声的磁带所构成,由于考虑到在容器中按钮、倒带不便,故将录音机芯长期锁定在放音状态,磁带则采用循环式。然而由于循环磁带短、极易磨损,造成输出音量下降,并常出现绞带、轧带等故障,加之录音机芯长期锁定在放音状态,这种频繁启动的不合理启动方式加剧了故障的发生,使人们放爆竹以示庆贺的情绪受到损害。

本实用新型的目的是这样实现的:将上述爆竹声电子放音装置中的放音电路--录音机芯加磁带换为现代先进的计算机语言处理技术中的电子放音电路,并在该电路中的语言处理器上接一循环放音控制器,从而在接通电源时就可连续循环放音。且具有体积小、可靠性高、音响效果好、操作简便等优点。

以下结合附图对本实用新型进行详细说明:图1为本实用新型的结构框图;图2为本实用新型的电原理图;图3为本实用新型的放音电路1的实施例。

参照图1,本实用新型的结构为:放音电路1、放大器2、扬声器3依次串联,直流电源5通过电源开关6分别和放音电路1、放大器2连接,放音电路1和放大器2装在基座4上,而扬声器3的位置则以获得最佳音响效果为原则而定。

如前所述,本实用新型的放音电路1采用了目前先进的计算机语言处理技术的电子放音电路,并在该电路的语言处理器上连接一个循环放音控制器,如图2所示。具体地说,放音电路1由语言处理器、只读存储器、循环放音控制器及电子元器件所构成的外围电路所组成,该只读存储器中存储有爆竹声数字信号,它通过数据线和控制线与语言处理器相连接。循环放音控制器的两个输入端分别与电源、语言处理器的An+1端相连。

当电源接通时,循环放音控制器接收一电压跳变信号,其两个输出端先后闭合,语言处理器进入放音状态,只读存储器在选片及地址控制信号作用下,通过其数据线将爆竹声数字信号传输到语言处理器,经过D/A转换成爆竹声电信号,再输送到放大器2;放大后的爆竹声电信号输送到扬声器3,于是放出爆竹声。当只读存储器所存储的数字信号输出完后,语言处理器的An+1端发出一控制信号给循环放音控制器,该控制器的两个输出端再次先后闭合,语言处理器再次进入放音状态……,上述程序依次循环,直至电源断开。

由图3得知,本实用新型所用的电子放音电路由一片语言处理器UM5100和一片可擦只读存储器EPROM27128及电阻器R1~R5、电容器C1~C6、二极管D1~D4、电位器W1、W2、三极管G及继电器J所组成。虚线框内为循环放音控制器,其中继电器J的一端接+5V电源,另一端通过三极管G接地,三极管G的基极通过电阻器R3分别接二极管D1、D2,D2接语言处理器A14端,D1与+5V电源之间接电容器C6,电容器C6的二端分别通过R4、R5接地。其余部分为目前计算机语言处理技术用的先进的电子放音电路,在只读存储器EPROM27128中存储有爆竹声数字信号。电源接通后,电源电压正跳变通过循环放音控制器中的电容器C6、二极管D1、电阻器R3到达三极管G的基极,使三极管G导通,继电器J吸合,其触点j1先闭合,UM5100的复位端被高电平触发,其内部的计数器置零,处于等待状态。接着j2闭合,UM5100的放音端被低电平触发,转入放音状态,其第32脚变为低电平,并发出选片控制信号给27128的第20脚,同时UM5100的地址控制端A0~A13通过连接线将控制信号传输到27128的相应端,而27128通过数据线D0~D7将爆竹声数字信号送到UM5100,该信号经过D/A转换电路变为爆竹声电信号,由UM5100的输出端第23脚经C1、W1输送到放大器2,经放大后输送到扬声器3,于是由扬声器放出爆竹声。当27128的数字信号读完时,UM5100的A14端由低电平变为高电平,电压信号通过二极管D2、电阻器R3到达三极管G的基极,使G再次导通,重复上述各程序,如此循环直至电源断开为止。

语言处理器的放音触发端有两类触发方式:第一类是只允许脉冲触发,第二类是既允许脉冲、又允许电平触发。本实施例中的循环放音控制器对上述两类触发方式均适用。但在第二类触发方式时,还可根据所需要的触发电平直接将该放音触发端接电源或接地。

此外,本实用新型还可由包含有语言处理器、存储有爆竹声数字信号的只读存储器及部分外围电路功能的单块集成电路和循环放音控制器、元器件所组成。

专利公开号:CN2067447U 专利状态/类型:申请 专利申请号:CN 90207053 专利公开日:1990年12月12日 专利申请日:1990年3月17日 发明者:杨源祥, 袁冠 申请人:永连软件系统工程公司
分类
国际分类号A63H5/00, G10K15/04
法律事件
日期代码事件说明
1990年12月12日C06Publication
1991年7月31日C14Granted
1993年7月14日C19Lapse of patent right due to non-payment of the annual fee
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