Techniques for facilitating communication between a portable media device and an accessory using multiple communication paths
US8509694B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 29, 2010 |
| Grant date | Aug 13, 2013 |
| Priority date | — |
| Expiry date | Oct 6, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W76/15
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Techniques for facilitating communication between a portable media device (PMD) and an accessory via multiple communication paths. In one set of embodiments, an accessory can be coupled with a PMD via a first connection, thereby establishing a first control communication path. The accessory can send to the PMD, via the first control communication path, an enumeration of the communication paths supported by the accessory. The enumerated communication paths can include control communication paths and data (e.g., audio or video) communication paths. The accessory can further send, to the PMD via the first control communication path, an availability status of each data communication path. In response, the PMD can select, based on a routing policy, one or more of the data communication paths and can notify the accessory of the selected data communication path. The PMD and accessory can then interoperate by exchanging data signals over the selected data communication path.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.