Electronic accessory apparatus and audible signal transmission method thereof
US9807507B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 17, 2016 |
| Grant date | Oct 31, 2017 |
| Priority date | — |
| Expiry date | Oct 17, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04R2420/09
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An electronic accessory apparatus and audible signal transmission method thereof are provided. The electronic accessory apparatus includes a type C USB connector, a first switch circuit, a second switch circuit, a grounding switch circuit and a first channel selector. The type C USB connector has a plurality of data pin sets, a first ground pin, and a second ground pin. The first switch circuit transports a data signal set or an audible output signal set to a first selected data pin set according to a first control signal. The second switch circuit transports the audible output signal set to the first selected data pin set according to the first control signal. The grounding switch circuit is turned on or cut off according to a second control signal. The first channel selector sets a signal transmission relation between the first audible input signal set and the first and second ground pins.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.