Communication over power lines
US8446943B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 23, 2010 |
| Grant date | May 21, 2013 |
| Priority date | — |
| Expiry date | Jun 27, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B14/026
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for communicating over a power line. In one embodiment of the method, a first PWM waveform signal is generated, wherein a duty cycle of the first PWM waveform signal is proportional to an amplitude of a first analog signal. A first sinusoidal waveform signal is also generated, which has a first frequency. The first sinusoidal waveform signal is modulated in relation to the first PWM waveform signal. The modulated first sinusoidal waveform signal is transmitted to a circuit via a power conductor that couples a power source to the circuit. The circuit in turn generates a demodulated signal by demodulating the modulated first sinusoidal waveform signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.