发明名称 |
Wideband CATV amplifier with microprocessor-based slope and gain control |
摘要 |
A broadband amplifier has a microcontroller having tables the entries of which correspond to desired variable slope and gain characteristics of the amplifier. The entries in the tables are derived from known temperature characteristics of a specific amplifier/cable combination; multiple tables are used to support multiple different configurations. The microcontroller retrieves values from the tables based on temperature data supplied thereto via a serial bus; these values are output to digital-to-analog converters which generate slope and gain control signals to control slope and gain compensation circuits in a PIN diode attenuator in the amplifier.
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申请公布号 |
US5999059(A) |
申请公布日期 |
1999.12.07 |
申请号 |
US19980001961 |
申请日期 |
1998.01.02 |
申请人 |
THOMAS & BETTS INTERNATIONAL, INC. |
发明人 |
BLOUNT, JR., RICHARD J.;UNDERKOFLER, LEON M. |
分类号 |
H04N5/14;H03F1/30;H03F1/32;H03F3/62;H03G3/30;H04N7/10;H04N7/26;(IPC1-7):H03G3/30 |
主分类号 |
H04N5/14 |
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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