Philips 27PT9007D user manual Glossary, Atsc

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GLOSSARY

Aspect Ratio

The ratio between the width and height of the TV picture on the screen. In a normal TV set the aspect ratio is 4

 

to 3 (4:3). The aspect ratio in HDTV is 16:9, which resembles the aspect ratio in a movie theatre (Widescreen).

 

New TV systems support both 4:3 and 16:9 aspect ratio and can automatically switch between them.

Audio Video (A/V)

A term often used when discussing a channel on a TV receiver or on video equipment, which has been

 

especially designed to accept VCR audio-video signal. The A/V channel automatically activates special circuitry

 

within the TV set to prevent picture distortion and skewing. It is also used for audio-video processors, which

 

handle both types of signal.

ATSC

ATSC: Advance Television Systems Committee. Formed to establish technical standards for advanced

 

television systems, including digital high definition television (HDTV).

CVBS

Composite Video Baseband Signal. In broadcast television this refers to the video signal.

 

including the colour information and syncs.

DTV

Digital television. Generic term that refers to all digital television formats, including high-definition television

 

(HDTV) and standard-definition television (SDTV).

Digital Tuner

A digital tuner serves as the decoder required to receive and display digital broadcasts. It can be included inside TV sets or

 

via a set-top box.

HDTV

,

The generally agreed upon definition of HDTV is approximately twice the vertical and horizontal picture resolution of today s

 

NTSC TV, which essentially makes the picture twice as sharp. HDTV also has a screen ratio of 16:9. HDTV offers reduced

 

motion artifacts (i.e. ghosting, dot crawl), and offers 5.1 independent channels of CD-quality stereo surround sound,(also

 

referred to as AC-3).

NTSC

National Television System Committee. The organization that developed the analog television standard currently in use in the

 

U.S., Canada, and Japan. Now generally used to refer to that standard. The NTSC standard combines blue, red and green

 

signals modulated as an AM signal with an FM signal for audio.

Progressive Scan

In Progressive Scanning all the horizontal scan lines are scanned on to the screen at one time. The Digital TV and HDTV

 

standards accept both Interlaced Scan and Progressive Scan broadcast and display methods.

Resolution

Resolution: A measurement of the finest (smallest) detail that is visible in a video image. TV resolutions may be expressed as

 

number of pixels in an image, or more commonly as Total Number of (horizontally scanned) Lines used to create the image.

 

Standard Digital TV Resolutions:

 

SDTV: 480i - The picture is 704x480 pixels, 480p - The picture is 704x480 pixels.

 

HDTV: 720p - The picture is 1280x720 pixels, 1080i - The picture is 1920x1080 pixels, 1080p - The picture is 1920x1080 pixels.

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Contents 27PT9007D Proof Purchase Important Safety Instructions Contents Guide to Digital TV Quick Tips Before YOU StartDescription of Remote Control Buttons Basic TV and Remote Control Operation Remote ControlVirgin Mode First Time YOU Turn on the TVFollow these steps for Digital Mode and Analog Mode Auto Channel SearchHowto USE the Language Control Press Cursor or to select English or EspanolHowto USE the Signal Type Control Digital Mode Analog Mode Channel Edit & NameFavorite List Picture Menu Controls PictureSound Menu Controls Understanding Parental Controls Movie RatingsActivate Parental Control Movie Ratings TV Ratings Unrated and no Rating Block ChannelChange Password Child LockDownloadable V-CHIP Ratings tableHowto USE the Time Menu Controls Time Zone Daylight SavingTV Switching OFF Update ClockFollow these steps for Analog Mode Analog Closed Caption ControlsDigital Closed Caption Controls Digital CC StyleSelecting a Picture Format Using the Remote Control Howto USE Zoom ControlInformation Banner Digital Mode Information BannerGlossary AtscTroubleshooting Tips SymptomsSymptoms Suggested Steps to Take Cleaning and Care Placement of the TVSpecifications Weight & DimensionsPhilips Limited Warranty Index