发明名称 |
SYSTEM AND METHOD FOR INVERTING AUTOMATIC GAIN CONTROL (AGC) AND SOFT LIMITING |
摘要 |
A soft limiter for a signal processor includes a variable-gain amplifier, and a threshold detector. The variable-gain amplifier includes a signal input for receiving an input signal, a signal output for providing an output signal representative of the input signal, and a gain control input for controlling a gain of the amplifier. The threshold detector is coupled to the gain control input, and includes a control input for receiving a control variable thereon. The threshold detector is configured to set the gain of the amplifier to a first gain value when the control variable exceeds a threshold value, and to set the gain to a second gain value different from the first gain value when the control variable is less than the threshold value.
|
申请公布号 |
CA2363400(C) |
申请公布日期 |
2004.11.02 |
申请号 |
CA20012363400 |
申请日期 |
2001.11.21 |
申请人 |
RESEARCH IN MOTION LIMITED |
发明人 |
SIMMONS, SEAN B.;KEMENCZY, ZOLTAN |
分类号 |
H03G3/20;H03G7/06;H03G11/04;H04B1/18;H04Q7/32;(IPC1-7):H03G3/20 |
主分类号 |
H03G3/20 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|