Invention Grant
US08718577B1 Method and apparatus for minimizing local oscillator leakage in a transmitter
有权
用于最小化发射机中本地振荡器泄漏的方法和装置
- Patent Title: Method and apparatus for minimizing local oscillator leakage in a transmitter
- Patent Title (中): 用于最小化发射机中本地振荡器泄漏的方法和装置
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Application No.: US13689402Application Date: 2012-11-29
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Publication No.: US08718577B1Publication Date: 2014-05-06
- Inventor: Peter Smidth
- Applicant: Exalt Communications Incorporated
- Applicant Address: US CA Campbell
- Assignee: Exalt Communications Incorporated
- Current Assignee: Exalt Communications Incorporated
- Current Assignee Address: US CA Campbell
- Agency: Hickman Palermo Truong Becker Bingham Wong LLP
- Main IPC: H04B1/04
- IPC: H04B1/04

Abstract:
According to techniques described herein LO leakage may be automatically minimized in a transmitter chain, even though the leakage may be varying in nature. In an embodiment a target signal for transmission is received. An offset for reducing the effects of the LO leakage is applied to the target signal. After the offset is applied, the target signal is converted to a transmission signal using the LO. A power associated with the transmission signal is determined. The offset is then adjusted based on the power associated with the transmission signal. In another embodiment, the offset signal is adjusted in a manner that minimizes the power associated with the transmission signal.
Public/Granted literature
- US20140148109A1 METHOD AND APPARATUS FOR MINIMIZING LOCAL OSCILLATOR LEAKAGE IN A TRANSMITTER Public/Granted day:2014-05-29
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