发明名称 |
DISPOSITIVO DE CONEXION PARA EL ACCIONAMIENTO DE UN ALTAVOZ DE SENAL |
摘要 |
<p>Circuit arrangement for driving a signal loudspeaker (L), in which an oscillator (OS) is provided which can be gated by a control signal (ST) and which generates rectangular signals (S1) allocated to a signal tone. The oscillator (OS) is followed by a pulse shaper (JF) which generates with at least one edge of each rectangular signal (S1) a pulse (S2) which is short in comparison with the duration of the period of the rectangular signals (S1) and which is supplied to the signal loudspeaker (L) via an amplifier stage (T). <IMAGE></p> |
申请公布号 |
ES493896(D0) |
申请公布日期 |
1981.04.01 |
申请号 |
ES19960004938 |
申请日期 |
1980.07.31 |
申请人 |
SIEMENS AKTIENGESELLSCHAFT |
发明人 |
|
分类号 |
G08B3/10;H04R3/00;(IPC1-7):04R3/00 |
主分类号 |
G08B3/10 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|