HDMI Distribution Amplifiers

TECH SHOWCASE - April 1, 2014 HDMI Distribution Amplifiers By Christopher Maione, CTS-D, DSCE, DMC-D As the digital sunrise continues and we see less and less of VGA and more HDMI devices, the need for distributing HDMI signal to multiple display devices has become evident. In the early attempts to “distribute” HDMI, the copyright police did not understand the legitimate use of HDMI distribution in the AV industry and the AV industry didn’t understand how to legally get around the copyright protection—known as High-bandwidth Digital Content Protection (HDCP), also referred to as High-definition Copyright Protection (HDCP)—and how to effectively use the handshake information— known as Extended Display Identification Data (EDID)—being sent to the display. Most of these issues, at least in the current versions of HDMI and HDCP, have been resolved and AV equipment manufacturers are producing stable HDMI distribution devices. However, depending on the HDMI source, the HDMI distribution amplifier, and the connected display devices, there are still occasions where the display will “go black” because it does not adequately receive the distributed HDMI signal, make the HDCP handshake, or recognize the EDID signal. The following devices are simple yet useful tools for taking a single HDMI signal and distributing it (in most cases 1x4) to four display devices. More » SUPPLEMENT VIDEOWALLS Modern videowalls enable hyper-real simulation and high-impact communications. Read the latest case studies and products in this eBook. LEARN MORE» PRODUCT NEWS DK-Technologies Launches Entry Level DK T7 Audio Meter at NAB 2014 » Lectrosonics Introduces Money-saving SRB Kits » HARMAN's AKG Introduces CBL31 WLS and STSDAM+ Tabletop Microphone Solutions for Wireless Use » HARMAN's AKG Aids International Understanding: New CSX IRS10 Infrared Language Distribution System from AKG Ensures Uncompromised Security and 10 Channels of Digital Transmission » HARMAN's dbx Is Now Shipping Its DriveRack PA2 Loudspeaker Management System With Mobile App Control » Jünger Audio Bridges A Gap With D*AP8 MAP » RTI Now Shipping RP-4 RF Control Processor for Single-Room Installations » HRS Control Launches New Products at NAB 2014 » Platinum Tools Showcases New PRO-Strike Punchdown Tool at 2014 ISC West » Litepanels Unveils Powerful Sola 9 and Inca 9 at NAB 2014 » Video Clarity Introduces Reduced Reference Mode for Its RTM Real-Time Monitoring Solution » DVEO to Introduce 2-7 Channel IP Multiplexer/Demultiplexer at NAB 2014 » ARE YOU NETWORKED? Find customers from a variety of peripheral associations needing your expertise and business. See our list of associations to add to your network. FIND US ONLINE Facebook » Twitter » LinkedIn » Current LinkedIn discussions: What IT training has been invaluable to you as an AV integrator? UPCOMING EVENTS IEEE Green Technologies Conference, April 3-4, Corpus Christi, Texas » NAB Show, April 5-10, Las Vegas » ARDA World 2014, April 6-10, Las Vegas » Stampede Big Book of AV Tour, March 17, Boston » AES Convention, April 26-29, Berlin » For more events, see our calendar. For Advertising Information, contact: Janis Crowley, Western Region, 415-505-1985, jcrowley@nbmedia.com Paul Leifer, Eastern Region/Europe, 908-369-5810, pleifer@media-sales.net

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