Electronic device, accessory, and method for detecting an accessory
US9179215B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 8, 2013 |
| Grant date | Nov 3, 2015 |
| Priority date | — |
| Expiry date | Oct 25, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R1/1041
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Electronic device, accessory, and method for detecting an accessory are provided. The electronic device includes a connector, a control unit, and an audio processing unit. The connector is configured to connect to an accessory and has an audio contact. The control unit has first and second terminals, which are coupled to the audio contact. The control unit is configured to send a command, which is represented by a first serial digital signal, to the accessory through the first terminal and audio contact when the accessory is electrically connected to the connector, and to receive accessory data, which is represented by a second serial digital signal and generated by the accessory in response to the command, through the second terminal and audio contact. The audio processing unit is coupled between the audio contact and control unit, and configured to receive an audio signal from the accessory through the audio contact.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.