发明名称 |
DIGITAL ENUNCIATOR FOR COMMUNICATION SYSTEM |
摘要 |
A receiver in a communication system is coupled to a transmission channel for receiving communication signals transmitted over a transmission channel. The receiver includes signal receiving electronics for receiving communication signals directed to the receiver. The receiver also includes a controller, responsive to the receipt of a communication signal by the signal receiving electronics, to provide an enunciator enable signal, and a clock signal generator for generating a clock signal. The receiver further includes an enunciator coupled to the clock signal generator, for producing an electronic sound signal. The enunciator includes a volume control module for receiving a first periodic signal and providing a volume control signal. The enunciator also includes a divider for receiving the clock signal and providing a corresponding output signal having a frequency corresponding to the frequency of the clock signal frequency divided by a divider value. The enunciator further includes a tone control module coupled to the divider, for providing a tone control signal having a specified frequency and overtone pattern, and a modulator for modulating the third periodic signal by the second periodic signal to provide an electronic sound signal.
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申请公布号 |
WO0019388(A1) |
申请公布日期 |
2000.04.06 |
申请号 |
WO1999US22142 |
申请日期 |
1999.09.24 |
申请人 |
CONEXANT SYSTEMS, INC. |
发明人 |
YIN, NING;REYES, ROMY;WALLEY, KENNETH, SCOTT |
分类号 |
G08B3/10;(IPC1-7):G08B3/10 |
主分类号 |
G08B3/10 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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