HDMI plug and cable assembly
US8251740B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 9, 2010 |
| Grant date | Aug 28, 2012 |
| Priority date | — |
| Expiry date | Dec 13, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01R13/7175
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A high-definition multimedia interface (HDMI) plug on an HDMI cable assembly includes an indicator light that is illuminated only when both ends of the cable are plugged into a video source and a video sink. Embodiments include an HDMI plug that comprises a connector body having a mating end configured for insertion into a mating HDMI receptacle and containing electrical pins configured according to HDMI specifications, the pins including a +5V Power pin, a Ground pin, and a Hot Plug Detect pin. The HDMI plug further comprises an indicator circuit that includes a light-emitting diode and a transistor switch in series with the light emitting-diode, wherein the light-emitting diode and transistor switch are coupled to the +5V Power pin, Ground pin, and Hot Plug Detect pin so that the light-emitting diode is activated only when both the +5V Power pin and Hot Plug Detect pin are energized.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.