Sink device and wireless transmission system
US8982760B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 21, 2009 |
| Grant date | Mar 17, 2015 |
| Priority date | — |
| Expiry date | Apr 19, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04S3/008
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
When reproducing AV data transmitted from a source device by multicast wireless transmission, a sink device can check the wireless connection status of other sink device which reproduces AV data from the same source device. The sink device (2a) includes: an AV reception portion which receives AV data through multicast wireless transmission from the source device (1); a reproduction portion which extracts and reproduces AV data transmitted to the sink device (2a) from the received AV data; and a device information receiving portion that wirelessly receives a portion or whole of the sink device information managed in the source device (1). The sink device information correlates identification information for identifying a plurality of sink devices (2a, 2b, . . . ) containing the sink device (2a) with state information indicative of wireless connection status of the sink devices (2a, 2b, . . . ).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.