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:
“When we reflect on our past sentiments and affections, our thought is a faithful mirror, and copies its objects truly; but the colours which it employs are faint and dull, in comparison of those in which our original perceptions were clothed.”
—David Hume (1711–1776)
“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)
“... there is no reason to confuse television news with journalism.”
—Nora Ephron (b. 1941)
“What is most original in a man’s nature is often that which is most desperate. Thus new systems are forced on the world by men who simply cannot bear the pain of living with what is. Creators care nothing for their systems except that they be unique. If Hitler had been born in Nazi Germany he wouldn’t have been content to enjoy the atmosphere.”
—Leonard Cohen (b. 1934)