Bedienungsanleitung Epson emp 730 (Seite 86 von 100) (Englisch)

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Interlaced

scanning

A method of image scanning whereby the image data is divided into

fine horizontal lines which are displayed in sequence starting from left

to right and then from the top to the bottom of the screen. The even-

numbered lines and odd-numbered lines are displayed alternately.

Progressive

scanning

A method of image scanning whereby the image data from a single

image is scanned sequentially from top to bottom to create a single

image.

Refresh rate The light-emitting element of a display maintains the same luminosity

and colour for an extremely short time. Because of this, the image must

be scanned many times per second in order to refresh the light-emitting

element. The number of refresh operations per second is called the

"refresh rate", and is expressed in hertz (Hz).

Resize

display

This function is use to project computer images that have a resolution

or more than or less than the projector's panel resolution to be projected

so that they fill the whole of the projection area.

Security

lock

A device consisting of a projector case with a hole in it that a

commercially-available theft-prevention cable can be passed through in

order to secure the device to a table or pillar. This projector is

compatible with the Microsaver Security System manufactured by

Kensington.

sRGB An international standard for colour intervals that was formulated so

that colours which are reproduced by video equipment can be handled

easily by computer operating systems (OS) and the Internet.

SVGA

A type of video signal with a resolution of 800 (horizontal) x 600

(vertical) dots which is used by IBM PC/AT-compatible computers.

S-Video

A video signal which has the luminance component and colour

component separated in order to provide better image quality.

It refers to images which consist of two independent signals: Y

(luminance signal), and C (colour signal).

SXGA A type of video signal with a resolution of 1280 (horizontal) x 1024

(vertical) dots which is used by IBM PC/AT-compatible computers.

Sync.

(Synchroni-

zation)

The signals output from computers have a specific frequency. If the

projector frequency does not match this frequency, the resulting images

will not be of a good quality. The process of matching the phases of

these signals (the relative position of the crests and troughs in the

signal) is called "synchronisation". If the signals are not synchronized,

problems such as flickering, blurriness and horizontal interference can

occur.

Tr a c k i n g

The signals output from computers have a specific frequency. If the

projector frequency does not match this frequency, the resulting images

will not be of a good quality. The process of matching the frequency of

these signals (the number of crests in the signal) is called "tracking". If

tracking is not carried out correctly, wide vertical stripes will appear in

the projected images.

USB An abbreviation for Universal Serial Bus. USB is an interface for

connecting personal computers to peripheral devices which only

support relatively low data transmission speeds.

Glossary

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