Portable electronic device having universal earphone jack
US8731208B2 · kind B2 · utility
1Cited by
2References
7Claims
0Family size
Assignees
Inventor
Key dates
| Filing date | May 31, 2011 |
| Grant date | May 20, 2014 |
| Priority date | — |
| Expiry date | Oct 2, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R1/1041
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A portable electronic device includes an earphone jack for receiving an earphone plug, a switch unit and a signal processing unit. The switch unit is connected to the earphone jack and is switchable between a first state and a second state. The signal processing unit is connected to the earphone jack and the switch unit. The signal processing unit is used to identify a type of the earphone plug received in the earphone plug and control the switch unit to switch to either the first state or the second state according to the type of the earphone plug.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.