Invention Grant
US08897342B2 Distributed modem architectures for power line communication systems and other wired communication systems
有权
用于电力线通信系统和其他有线通信系统的分布式调制解调器架构
- Patent Title: Distributed modem architectures for power line communication systems and other wired communication systems
- Patent Title (中): 用于电力线通信系统和其他有线通信系统的分布式调制解调器架构
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Application No.: US13198498Application Date: 2011-08-04
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Publication No.: US08897342B2Publication Date: 2014-11-25
- Inventor: Lawrence H. Zuckerman , Perry I. Tsao , Thomas Yang , Keiichi McGuire , Chenguang Gong , Ravichander Bairi
- Applicant: Lawrence H. Zuckerman , Perry I. Tsao , Thomas Yang , Keiichi McGuire , Chenguang Gong , Ravichander Bairi
- Applicant Address: US CA Santa Clara
- Assignee: National Semiconductor Corporation
- Current Assignee: National Semiconductor Corporation
- Current Assignee Address: US CA Santa Clara
- Agent Andrew Viger; Frederick J. Telecky, Jr.
- Main IPC: H04B1/38
- IPC: H04B1/38 ; H04L25/02
Abstract:
A master modem is configured to generate a carrier signal for transmission over a wired connection. A slave modem is configured to change an impedance of the wired connection to alter generation of the carrier signal by the master modem. The impedance of the wired connection is changed based on data to be provided by the slave modem. The master modem can demodulate its own carrier signal to obtain the data provided by the slave modem. The impedance of the wired connection could be changed by changing an impedance of a transformer winding or inductor of the slave modem, where the transformer winding or inductor is coupled to the wired connection. The impedance of the wired connection could also be changed by changing a reactance of a circuit coupled to the wired connection.
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