Unlike DVI, which is compatible with HDMI using only passive cables and adapters, MHL requires that the HDMI socket be MHL-enabled, otherwise an active adapter is required to convert the signal to HDMI. MHL is an adaptation of HDMI intended for mobile devices such as smartphones and tablets. The MHL Control Bus repurposes the USB On-The-Go ID (pin 4), and the HDMI Hot Plug Detect (pin 19), while the pins for power & ground match their original assignment for both. The MHL TMDS data lane (purple & green) uses the differential pair present in both USB 2.0 (Data− & Data+) and HDMI (TMDS Data0− & Data0+). Pin assignments for Micro-USB to MHL-enabled HDMI. MHL announced in 2014 that more than half a billion MHL-capable products had been shipped since the standard was created. The first mobile device to feature the MHL standard was the Samsung Galaxy S II, announced at the 2011 Mobile World Congress. May 2011 marked the first retail availability of MHL-enabled products. The MHL specification version 1.0 was released in June 2010, and the Compliance Test Specification (CTS) was released in December 2010. The working group was announced in September 2009, and the MHL Consortium founded in April 2010 by Nokia, Samsung, Silicon Image, Sony and Toshiba. The company is quoted as saying it did not ship that original technology in any volume, but used it as a way to get a working group started. This interface was termed "Mobile High Definition Link" at the time of the demonstration, and is a direct precursor of the implementation announced by the MHL Consortium. Silicon Image, one of the founding companies of the HDMI standard, originally demonstrated a mobile interconnect at the January 2008 Consumer Electronics Show (CES), based on its transition-minimized differential signaling (TMDS) technology. 5 Comparison with SlimPort / Mobility DisplayPort (MyDP).
4.2 Samsung Micro-USB-to-HDMI adapter and tip (eleven-pin).
0 kommentar(er)
