Forward and backward compatible 5 pole audio plug and jack system
US9774152B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Feb 20, 2015 |
| Grant date | Sep 26, 2017 |
| Priority date | — |
| Expiry date | Feb 20, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01R2107/00
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A backward compatible five-contact audio plug and jack system that provides for connecting to five separate channels of an audio accessory including two speaker channels and two microphone channels. The audio plug includes an added smaller diameter ring contact positioned within a longitudinal position normally occupied by tip contact of a conventional 4-contact audio plug and specifically located within 5.1 mm of a tip of the five-contact audio plug. The jack contact for the tip contact of the plug and the jack contact for the added smaller diameter ring contact are within 4.75 mm of each other, preferably at a distance between 1.5 mm and 2.5 mmm. The smaller diameter ring contact has a maximum diameter that is smaller than a maximum diameter of the tip contact specified in ITU P.381 standard which is 3.05 mm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.