Invention Grant
US07936850B2 Method and apparatus for providing a digital automatic gain control (AGC)
有权
用于提供数字自动增益控制(AGC)的方法和装置
- Patent Title: Method and apparatus for providing a digital automatic gain control (AGC)
- Patent Title (中): 用于提供数字自动增益控制(AGC)的方法和装置
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Application No.: US11654379Application Date: 2007-01-17
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Publication No.: US07936850B2Publication Date: 2011-05-03
- Inventor: Eric B. Rodal , Charles Abraham
- Applicant: Eric B. Rodal , Charles Abraham
- Applicant Address: US CA Irvine
- Assignee: Broadcom Corporation
- Current Assignee: Broadcom Corporation
- Current Assignee Address: US CA Irvine
- Agency: McAndrews, Held & Malloy, Ltd.
- Main IPC: H04L27/08
- IPC: H04L27/08

Abstract:
A method and apparatus for providing a digital automatic gain control (AGC) for a radio-frequency (RF) receiver. The receiver comprises a logarithmic analog-to-digital converter for sampling the analog RF signals, a FIR filter for filtering the digitized signals, a resampler for resampling the digitized signals, and an automatic gain control circuit. The AGC circuit controls the resampling process to provide automatic gain control function in the digital domain. The resampler circuit has as its input a digital signal having a first plurality of bits. The output signal from the resampler has a second plurality of bits, where the second plurality of bits are less than the first plurality of bits. The automatic gain control circuit controls the resampling of the first plurality of bits to form the second plurality of bits in accordance with an automatic gain control signal.
Public/Granted literature
- US20080170606A1 Method and apparatus for providing a digital automatic gain control (AGC) Public/Granted day:2008-07-17
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