Establishing communication between digital media servers and audio playback devices in audio systems
US10419497B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Mar 31, 2015 |
| Grant date | Sep 17, 2019 |
| Priority date | — |
| Expiry date | Jul 9, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L67/51
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method includes receiving via an audio playback device a first multicast transmission (e.g., an SSDP(HTTP)/Bonjour(DNS) presence announcement) from a computer hosting a digital media server. The first multicast transmission provides an indication of the presence of the digital media server (e.g., DLNA music server) on a network (e.g., a LAN). A request for a unicast connection is transmitted via the audio playback device to the digital media server, and, in the absence of a response to the request for a unicast connection, a second multicast transmission is transmitted via the audio playback device. The second multicast transmission includes information that allows the digital media server to establish a connection with the audio playback device to facilitate transmission of a unicast request for content.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.