Remote node for bi-directional digital audio data and control communications
US9589052B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 11, 2013 |
| Grant date | Mar 7, 2017 |
| Priority date | — |
| Expiry date | Oct 27, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2499/13
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A remote node for bi-directional digital audio data and control communications includes remote components including: a remote transceiver; a remote low-voltage power supply that provides power to the other remote node components; and a sub-system that derives a master clock signal from received digital audio data. The sub-system includes a phase-locked loop (PLL) that is locked to a PLL input signal and outputs a remote node clock signal, and a switch that selects the PLL input signal from the derived clock signal and the remote node clock signal. The remote node is enabled to receive over a two-wire communication network digital audio data and digital control signals, and to transmit over the network digital control signals. The remote power supply has an input that is configured to be coupled to the network to derive the power for the remote node from power coupled to the network by a host end.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.