Glossary, Glossary …………………………………………… 50, Compatibility – Sharp XG-NV51XE User Manual

Page 53: With high-end, Composite sync, Signals for use with a wide, Xga resolution, Intelligent compression, And exp, Clock

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Appendix

50

Aspect ratio

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.

Auto sync

Optimises projected computer images by automatically adjusting certain characteristics.

Background

Initial setting image projected when no signal is being input.

Clock

Clock adjustment is used to adjust vertical noise when clock level is incorrect.

Compatibility

Ability to use with various image signal modes.

Composite sync

Signal combining horizontal and vertical sync pulses.

Digital keystone correction

Function to digitally correct a distorted image when the projector is set up at an angle.

Dot by dot mode

Mode that projects images in their native resolution.

Enlarge

Digitally zooms in on a portion of an image.

Fit to screen

Function to adjust an image without keeping a native aspect ratio other than 4 : 3, and project it in a 4 : 3 ratio.

Freeze

Function to freeze a moving image.

GUI

Graphical User Interface. User interface with graphics that allow easier operation.

I/P conversion

Function to convert an image between “Interlaced” and “Progressive” scan displays.

Intelligent compression

High quality resizing of lower and higher resolution images to fit the projector’s native resolution.

IrCOM

Function to transmit still images from a computer, hand-held PC or digital still camera via infrared communication for “Wireless
Presentations”.

IrDA

Standard protocol for wireless communication.

IrTran-P

Standard format (protocol) for transmission of images.

PDF

Portable Document Format. Documentation format used to transfer text and images from the CD-ROM.

Phase

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.

Presentation tools

Helpful tools used to emphasise keypoints throughout a presentation.

RS-232C

Function to control the projector from the computer by using the RS-232C ports on the projector and computer.

Startup image

The image displayed when the projector is turned on.

Status function

Displays the settings of each adjustment item.

Sync

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.

Sync on green

Video signal mode of a computer which overlaps horizontal and vertical sync signal to green colour signal pin.

Wireless mouse control

Function to operate the mouse control of the computer with the supplied remote control.

XGA resolution

The resolution with 1,024

ן 768 pixels that uses the signal of an IBM/AT compatible (DOS/V) computer.

Glossary

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