Philips 62PL9774, 55PL9774 Ways TV Signals Can Come toYour Home, Your High-definition-ready Set

Ways TV Signals Can Come toYour Home

Over the Air

Analog Digital Signal Signal

TV

Antenna

at Your

Home

Satellite TV

Company

Satellite

Satellites

	Satellite
	Receiver
Home Satellite Dish	at Your
	Home
Telephone Line

Cable TV

Company

Cable

For Direct Connection

to Your TV or to a

Cable Box,VCR, or

Satellite Receiver

Cable TV Signal (Analog)

Your High-definition-ready Set

High-definition television offers a picture with unprecedented crispness and clarity. The TV broadcast industry is moving toward high definition as the signal standard. Currently, the number of programs being broadcast in high definition is limited, but this is changing. To view high-definition programs on your TV, you will need to connect a satellite receiver, cable box, or set-top box that can decode HD signals.

Resolution information

Image resolutions are commonly referred to by a num- ber followed by a letter: 480i, 480p, 720p and 1080i. The number in each format refers to the number of lines of resolution, so for example both 480i and 480p offer 480 lines of resolution. The "i" or "p" refers to whether the signal is displayed using respectively interlaced or progressive scan. Interlaced scan breaks each frame of video into 2 fields, one made up of even lines and one made up of odd lines. The image is reproduced by draw- ing all odd lines first (1,3,5,…479) than all the even ones (2,4,6,….,480). Progressive scan, on the other hand

reproduces an image by drawing all lines in succession 1,2,3,4,….480).

Interlaced Scan		Progressive Scan
Odd lines	Even Lines		Lines in succession

6