Audio/video electrical cables
Introduction
High-Definition Multimedia Interface ("High-Definition Multimedia Interface") is a standard for uncompressed, encrypted video and audio. Supported by the industry to be a replacement for previous analog video standards such as the RCA connector and scart connector. HDMI provides an interface between any digital audio and video source such as a DTT tuner, a Blu-ray player, a tablet PC, a computer (Microsoft Windows, GNU/Linux, macOS, etc.), a laptop, an A/V receiver and a compatible digital audio/video monitor, such as a digital television (DTV).
HDMI allows the use of high-definition digital video as well as multi-channel digital audio in a single cable. It is independent of the various DTV standards such as ATSC, DVB (-T,-S,-C), which are nothing more than data encapsulations of the MPEG format. After being sent to a decoder, the uncompressed video data is obtained, which may be high definition. This data is encoded in TMDS format to be transmitted digitally via HDMI. HDMI also includes eight channels of uncompressed digital audio. Starting with version 1.2, HDMI can use up to eight audio channels.
The creators of HDMI include major consumer electronics manufacturers: Hitachi, Matsushita Electric Industrial (Panasonic), Philips, Sony, Thomson (RCA), Toshiba and Silicon Image. Digital Content Protection, LLC (a subsidiary of Intel) provides High-bandwidth Digital Content Protection (HDCP) for HDMI. HDMI also has the support of the major film production companies: Fox, Universal, Warner Bros. and Disney; system operators: DirecTV, Dish Network and SKY "Sky (company)").
HDMI connectors
Contenido
Existen cinco tipos de conectores HDMI.
Type A (Standard)
It has 19 pins and enough bandwidth for 4K displays. The male connector measures 13.9mm × 4.45mm, while the female connector measures 14mm × 4.55mm.
It supports single-link DVI interfaces via an adapter, but HDMI audio and remote control features will not be available. Additionally, without the use of HDCP, video quality and resolution could be degraded by the signal source to prevent the user from viewing or copying protected content.