Invention Grant
US09590572B2 Logarithmic detector amplifier system for use as high sensitivity selective receiver without frequency conversion
有权
对数检波器放大器系统用作高灵敏度选择接收器,无需频率转换
- Patent Title: Logarithmic detector amplifier system for use as high sensitivity selective receiver without frequency conversion
- Patent Title (中): 对数检波器放大器系统用作高灵敏度选择接收器,无需频率转换
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Application No.: US14216945Application Date: 2014-03-17
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Publication No.: US09590572B2Publication Date: 2017-03-07
- Inventor: Patrick Antoine Rada , Forrest James Brown , Alexandre Dupuy
- Applicant: DockOn AG
- Applicant Address: CH Zurich
- Assignee: DOCKON AG
- Current Assignee: DOCKON AG
- Current Assignee Address: CH Zurich
- Agency: Baker & Hostetler LLP
- Main IPC: H04B1/16
- IPC: H04B1/16 ; H03F3/193 ; H03F1/56 ; H03F3/195 ; H04B1/22 ; H03L7/06

Abstract:
A logarithmic detector amplifying (LDA) system is provided for use as a high sensitivity receive booster or replacement for a low noise amplifier in a receive chain of a communication device. The LDA system includes an amplifying circuit configured to receive an input signal having a first frequency and generate an oscillation based on the input signal, a sampling circuit coupled to the amplifying circuit and configured to terminate the oscillation based on a predetermined threshold to periodically clamp and restart the oscillation to generate a series of pulses modulated by the oscillation and by the input signal, and one or more resonant circuits coupled with the amplifying circuit and configured to establish a frequency of operation and to generate an output signal having a second frequency, the second frequency being substantially the same as the first frequency.
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