HDCP is the abbreviation for High-bandwidth Digital Content Protection. HDCP is a copy protection scheme to eliminate the possibility of intercepting digital data midstream between the source to the display. The system is meant to stop HDCP-encrypted content from being played on unauthorized devices or devices which have been modified to copy HDCP content. Before […]
Tech Support and Application Notes By John Vellone Composite Video Composite video the oldest and most common type of video interface for sending or receiving an analog video signal to or from a television set. Originally indroduced with the advent of the first B&W television, composite video is also known as the Radio Standard’s code […]
UTP Cable Termination Standards 568A Vs 568B Summary In the past there have been two main termination specifications for UTP data cable infrastructure and yet another for phone cable infrastructure. In today’s world of structured cable systems where many different services can be run over one type of cable it is important to keep […]
Display Modes researched by: John Vellone The term display mode refers to the characteristics of a computer display, in particular the maximum number of colors and the maximum image resolution (in pixels horizontally by pixels vertically). There are several display modes that can be found in personal computer (PC) systems today. The earliest displays for […]
Defining Resolution By John Vellone In computers, resolution is the number of pixels (individual points of color) contained on a display monitor, expressed in terms of the number of pixels on the horizontal axis and the number on the vertical axis. The sharpness of the image on a display depends on the resolution and the […]
VGA Video Connector Pin Out By John Vellone VGA Video connector pin out Pin # Signal Name 1 Red 2 Green 3 Blue 4 No Connect 5 Ground 6 Ground 7 Ground 8 Ground 9 No Connect 10 Ground 11 No Connect 12 DDC DAT 13 Horizontal Synchronization 14 Vertical Synchronization 15 DDC Clock
Telco Multi-Pair Color Code By John Vellone Green Red Black Yellow Blue Orange Green Brown Slate What do all the wire colors mean? Two wires (normally referred to as a “pair”) are needed for most telephone connections. One of the wires in a pair is referred to as the “tip” and the other […]
Principles of Sound Masking By John Vellone Sound Masking, Reducing noise in the work environment Masking those sounds to decrease speech intelligibility with Sound Masking.. This improvement in speech privacy can be of great value in open-plan offices, doctors’ examination rooms, call centers and other environments where confidentiality is important. Sound Masking Sound masking can also […]
Glossary of Microphone Terminology By John Vellone ◆ Sensitivity Sensitivity is an electrical output produced in a microphone in response to an input with a specified sound level.Sensitivity is expressed in decibels (dB), the standard unit for indicating the ratio of power output to input, which is defined by public standards in individual […]
Defining [DVI] Digital Video Interface researched by: John Vellone WHAT IS DVI ? DVI means Digital Visual Interface. DVI is the most recent video interface designed to optimize the quality of a PC’s image on a flat panel LCD. It is a replacement for the short lived Plug & Display standard and a step […]
