Comparison of Digital Terrestrial Television Systems
| System | Digital Modulation | Lines | Frame rate | Data rate | Hierarchical Mod. | Ch. B/W (MHz) | Video B/W | Audio offset | VSB | Video Coding | Audio Coding | Interactive TV | Digital subchannels | Single-Frequency Network | Predecessor format(s) | Mobile? |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ATSC | 8VSB, A-VSB and E-VSB in the works | 1080 | up to 60p | 19.39 MB/s | No | 6 | 4.25? digital carrier at 1.31 |
? | 8VSB | H.262 | Dolby Digital, AC3, MPEG-1 Layer II |
DSM-CC MHEG-5, PSIP |
Yes | Partial | NTSC | Not yet, ATSC-M/H in the works |
| DVB-T | COFDM (QPSK, 16/64QAM) |
1080 | up to 50p | Up to 31.668 MB/s | Yes | 5, 6, 7, or 8 | ? | ? | ? | H.262, H.264 | MPEG-1 Layer II, HE-AAC |
DSM-CC MHEG-5, DVB-SI |
Yes | Yes | PAL, SECAM | Yes (DVB-H) |
| DVB-T2 | COFDM (QPSK, 16/64/256QAM) |
1080 | up to 50p | Up to 50.34 Mbit/s | Yes | 1.7, 5, 6, 7, 8, or 10 | ? | ? | ? | H.264, H.262 | MPEG-1 Layer II, HE-AAC |
DSM-CC MHEG-5, DVB-SI |
Yes | Yes | DVB-T | DVB-NGH |
| DMB-T/H | TDS-OFDM | 1080 | up to 50p | ? | ? | 6, 7, or 8 | ? | ? | ? | MPEG-2, H.264/MPEG-4 AVC, AVS | MPEG-1 Audio Layer II, AC3 | Yes | ? | Yes | PAL | Yes |
| ISDB-T | 16/64QAM-OFDM (QPSK-OFDM/ DQPSK-OFDM) |
1080? | up to 60p | 19.39 MB/s | Yes | 6 (5.572 + 428 kHz guard band) | ? | ? | ? | H.262/ H.264 (1seg) |
AAC | No | Yes | Yes | NTSC | Yes, ISDB-Tmm/1seg |
| MediaFLO | OFDM (QPSK/16QAM) | ? | ? | ? | ? | 5.55 | ? | ? | ? | ? | ? | Yes | ? | ? | NTSC (Ch. 55) | Yes |
| SBTVD | BST-OFDM | 1080? | ? | ? | Yes | 6 | ? | ? | ? | H.264 | HE-AAC | No | Yes | Yes | PAL-M | Yes, 1seg |
| T-DMB | OFDM-DQPSK | ? | ? | ? | ? | ? | ? | ? | ? | H.262/ H.264 |
HE-AAC | ? | ? | ? | NTSC | Yes |
Read more about this topic: Broadcast Television Systems
Famous quotes containing the words comparison of, comparison, television and/or systems:
“We teach boys to be such men as we are. We do not teach them to aspire to be all they can. We do not give them a training as if we believed in their noble nature. We scarce educate their bodies. We do not train the eye and the hand. We exercise their understandings to the apprehension and comparison of some facts, to a skill in numbers, in words; we aim to make accountants, attorneys, engineers; but not to make able, earnest, great- hearted men.”
—Ralph Waldo Emerson (1803–1882)
“He was a superior man. He did not value his bodily life in comparison with ideal things. He did not recognize unjust human laws, but resisted them as he was bid. For once we are lifted out of the trivialness and dust of politics into the region of truth and manhood.”
—Henry David Thoreau (1817–1862)
“Television ... helps blur the distinction between framed and unframed reality. Whereas going to the movies necessarily entails leaving one’s ordinary surroundings, soap operas are in fact spatially inseparable from the rest of one’s life. In homes where television is on most of the time, they are also temporally integrated into one’s “real” life and, unlike the experience of going out in the evening to see a show, may not even interrupt its regular flow.”
—Eviatar Zerubavel, U.S. sociologist, educator. The Fine Line: Making Distinctions in Everyday Life, ch. 5, University of Chicago Press (1991)
“In all systems of theology the devil figures as a male person.... Yes, it is women who keep the church going.”
—Don Marquis (1878–1937)