Invention Grant
- Patent Title: Common mode signal reduction in powerline communication devices
- Patent Title (中): 电力线通信设备中的共模信号降低
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Application No.: US13564558Application Date: 2012-08-01
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Publication No.: US09001926B2Publication Date: 2015-04-07
- Inventor: Faisal M. Shad
- Applicant: Faisal M. Shad
- Applicant Address: US CA San Diego
- Assignee: QUALCOMM Incorporated
- Current Assignee: QUALCOMM Incorporated
- Current Assignee Address: US CA San Diego
- Agency: DeLizio Gilliam, PLLC
- Main IPC: H04B3/54
- IPC: H04B3/54
Abstract:
An active common mode current limiting mechanism limits common mode currents in a powerline communication device. A powerline coupler determines a common mode signal component of an output signal of the powerline communication device. The powerline coupler provides voltage estimates of the common mode signal component to a signal processing unit. The signal processing unit generates samples of the voltage estimates of the common mode signal component. The signal processing unit adjusts transmit voltage levels of the powerline communication device based on the samples of the voltage estimates of the common mode signal component to limit the common mode signal component of the output signal.
Public/Granted literature
- US20140036976A1 COMMON MODE SIGNAL REDUCTION IN POWERLINE COMMUNICATION DEVICES Public/Granted day:2014-02-06
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