Appendix
50
Width and height ratio of an image. The normal aspect ratio of a computer and video image is 4 : 3. There are also wide images with an
aspect ratio of 16 : 9 and 21 : 9.
ANSI lumen
Brightness unit established by the American National Standards Institute.
Optimises projected computer images by automatically adjusting certain characteristics.
Initial setting image projected when no signal is being input.
Clock adjustment is used to adjust vertical noise when clock level is incorrect.
Ability to use with various image signal modes.
Signal combining horizontal and vertical sync pulses.
Function to digitally correct a distorted image when the projector is set up at an angle.
Mode that projects images in their native resolution.
Digitally zooms in on a portion of an image.
Function to adjust an image without keeping a native aspect ratio other than 4 : 3, and project it in a 4 : 3 ratio.
Function to freeze a moving image.
Graphical User Interface. User interface with graphics that allow easier operation.
Function to convert an image between “Interlaced” and “Progressive” scan displays.
High quality resizing of lower and higher resolution images to fit the projector’s native resolution.
Function to transmit still images from a computer, hand-held PC or digital still camera via infrared communication for “Wireless
Presentations”.
Standard protocol for wireless communication.
Standard format (protocol) for transmission of images.
Portable Document Format. Documentation format used to transfer text and images from the CD-ROM.
Phase shift is a timing shift between isomorphic signals with the same resolution. When phase level is incorrect, the projected image
typically displays horizontal flicker.
Helpful tools used to emphasise keypoints throughout a presentation.
Function to control the projector from the computer by using the RS-232C ports on the projector and computer.
The image displayed when the projector is turned on.
Displays the settings of each adjustment item.
Synchronises the resolution and phase shift of two signals. When receiving an image with a resolution different from that of the computer,
the projected image may be distorted.
Video signal mode of a computer which overlaps horizontal and vertical sync signal to green colour signal pin.
Function to operate the mouse control of the computer with the supplied remote control.
The resolution with 1,024
768 pixels that uses the signal of an IBM/AT compatible (DOS/V) computer.
Glossary
