Power line communication apparatus and power line communication method
US7627304B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 6, 2006 |
| Grant date | Dec 1, 2009 |
| Priority date | — |
| Expiry date | Jul 25, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B2203/5495
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A power line communication apparatus is provided with an auto gain detector that detects a gain fluctuation of an AGC (Auto Gain Control) circuit that automatically adjusts a gain of a received signal; a retry ratio calculator that calculates a ratio of retry based on output from an ARQ (Automatic Repeat request) unit that detects an error in the received data and issues a repeat request; and a transmission rate calculator that calculates a transmission rate based on output from a channel estimation unit that calculates a CNR so as to estimate a transmission status. A display displays a transmission status, including the detected AGC noise fluctuation, retry ratio, transmission rate and the like.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.