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Glossary continued, F-g-h – HP L1735A User Manual

Page 76

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D

Digital light processing (DLP

)

A Texas Instruments

display technology that uses a Digital Micromirror
Device (DMD) to create and project vibrant, high-
definition images via either television or a projector.

De-interlacing

A feature that improves picture

quality, producing a film-like richness. Sixty frames
per second are shown as opposed to the standard

30 frames per second. Also called “line doubling.”

Digital coaxial cable

Carries a multi-channel

audio signal between digital or electronic devices,
separating sound into speaker-specific signals.

Dark video enhancement

Enhances details in

dark scenes.

Digital tuner

A set-top or built-in television tuner

that receives digital television signals. Also called

“digital receiver.”

Dolby Digital

A form of digital audio coding

that efficiently encodes sound to a digital format,
especially when multiple audio channels are
required.

DTS (Digital Theater System) Digital Surround

A surround sound format (5.1, 6.1, or 7.1), similar

to Dolby Digital standard, that features five to
seven discrete (independent) channels, plus a
channel for low frequency effects. See “Dolby
Digital” and also “Surround Sound.”

E

Electronic program guide

A program menu on

HP entertainment products, such as the Digital
Entertainment Center and Media Center PC, that
displays chronological, and automatically updated,
program listings.

F-G-H

HD televisions (see illlustration above)

Any TV set

with native support for at least 720p is considered

an HDTV. But will HD programs viewed on a

1080p set look better than they do on 720p mod-

els? The answer depends on the type of HD
program. No HD shows are currently broadcast in

1080p; some are recorded in 720p, others in
1080i. 1080i content can be broadcast in 1080p

using a de-interlacer. A 720p set de-interlaces the

1080i image and then scales down the 1080 hori-

zontal lines to 720 lines; a 1080p set only has to

do the first step, so it should produce a better-look-
ing image. But 720p content is likely to look better
on a natively 720p set than on a 1080p model
that has to scale the image up.

HD-Built-in vs. HD-Ready

Some HDTVs (HD-Built-in)

have a built-in tuner to receive local high-definition
broadcasts, and are considered true HDTVs.

Sets without an integrated tuner are “HD-Ready”

and need a set-top box to decode the high-
definition signal.

Glossary continued

Source Format

Delivery

Display

1080i Camera

Even lines 1080i

Odd lines 1080i

Even lines 1080i

Odd lines 1080i

1080p

De-Interlacer

Film Content

Full images 1080p

Even lines 1080i

Odd lines 1080i

1080p

De-Interlacer

HD televisions and de-interlacing

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