You do not have permission to view the full content of this post. Log in or register now.
maraming salamat po kaibigan.. pwede rin ba akong magtanong sayo if may mga di ako maintindihan?You do not have permission to view the full content of this post. Log in or register now.
You do not have permission to view the full content of this post. Log in or register now.
sa abot ng aking makakayamaraming salamat po kaibigan.. pwede rin ba akong magtanong sayo if may mga di ako maintindihan?
sir, anong part/component po ng vertical at horizontal oscillator?sa abot ng aking makakaya
sir pwede po ba explain mo sakin kahit sa simpleng sagot ang working principle ng vertical at horizontal section ng crt tv...
lines. The entire field is scanned in 160 s for a 60-Hz field rate. In color TV the field rate is 59.94 Hz. Then the scene is scanned a second time, again using 262 12 lines. This second field is scanned in such a way that its scan lines fall between those of the first field. This produces what is known as interlaced scanning, with a total of 12 lines. In practice, only about 480 lines show on the picture tube screen. Two interlaced fields produce a complete frame of video. With the field rate being 160 s, two fields produce a frame rate of 130 s, or 30 Hz. The frame rate in color TV is one-half the field rate, or 29.97 Hz. Interlaced scanning is used to reduce flicker, which is annoying to the eye. This rate is also fast enough that the human eye cannot detect individual scan lines and therefore sees a stable picture. The rate of occurrence of the horizontal scan lines is 15,750 Hz for monochrome, or black and white, TV and 15,734 Hz for color TV. This means that it takes about 1/15,734 s, or to trace out one horizontal scan line. At the TV receiver, the picture tube is scanned in step with the transmitter to accurately reproduce the picture. To ensure that the receiver stays exactly in synchronization with the transmitter, special horizontal and vertical sync pulses are added to and transmitted with the video signal (see Fig. 23-6). After one line has been scanned, a horizontal blanking pulse comes along. At the receiver, the blanking pulse is used to cut off the electron beam in the picture tube during the time the beam must retrace from right to left to get ready for the next left-to-right scan line. The horizontal sync pulse is used at the receiversir pwede po ba explain mo sakin kahit sa simpleng sagot ang working principle ng vertical at horizontal section ng crt tv...
salamat po talaga ng madami sir sa tulong...lines. The entire field is scanned in 160 s for a 60-Hz field rate. In color TV the field rate is 59.94 Hz. Then the scene is scanned a second time, again using 262 12 lines. This second field is scanned in such a way that its scan lines fall between those of the first field. This produces what is known as interlaced scanning, with a total of 12 lines. In practice, only about 480 lines show on the picture tube screen. Two interlaced fields produce a complete frame of video. With the field rate being 160 s, two fields produce a frame rate of 130 s, or 30 Hz. The frame rate in color TV is one-half the field rate, or 29.97 Hz. Interlaced scanning is used to reduce flicker, which is annoying to the eye. This rate is also fast enough that the human eye cannot detect individual scan lines and therefore sees a stable picture. The rate of occurrence of the horizontal scan lines is 15,750 Hz for monochrome, or black and white, TV and 15,734 Hz for color TV. This means that it takes about 1/15,734 s, or to trace out one horizontal scan line. At the TV receiver, the picture tube is scanned in step with the transmitter to accurately reproduce the picture. To ensure that the receiver stays exactly in synchronization with the transmitter, special horizontal and vertical sync pulses are added to and transmitted with the video signal (see Fig. 23-6). After one line has been scanned, a horizontal blanking pulse comes along. At the receiver, the blanking pulse is used to cut off the electron beam in the picture tube during the time the beam must retrace from right to left to get ready for the next left-to-right scan line. The horizontal sync pulse is used at the receiver
lulubusin ko na sir., ano po ung chroma at ung tinatawag nilang matrix? makapareho po ba yun?iyong last na binigay kong link pakibasa po about scanning
Chrominance (chroma or C for short) is the signal used in video systems to convey the color information of the picture, separately from the accompanying luma signal (or Y for short)lulubusin ko na sir., ano po ung chroma at ung tinatawag nilang matrix? makapareho po ba yun?
We use cookies and similar technologies for the following purposes:
Do you accept cookies and these technologies?
We use cookies and similar technologies for the following purposes:
Do you accept cookies and these technologies?