Demodulator: Difference between revisions
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! [[DVB-S]]/[[QPSK]] Demod produced by [[STMicroelectronics]] |
! [[DVB-S]]/[[QPSK]] Demod produced by [[STMicroelectronics]] |
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! style="background:#efefef;" | [[VES1893]] |
! style="background:#efefef;" | [[VLSI VES1893|VES1893]] |
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! [[DVB-S]]/[[QPSK]] Demod produced by [[VLSI Technology]] |
! [[DVB-S]]/[[QPSK]] Demod produced by [[VLSI Technology]] |
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! style="background:#efefef;" | [[VES1993]] |
! style="background:#efefef;" | [[VLSI VES1993|VES1993]] |
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! [[DVB-S]]/[[QPSK]] Demod produced by [[VLSI Technology]] |
! [[DVB-S]]/[[QPSK]] Demod produced by [[VLSI Technology]] |
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! style="background:#efefef;" | [[VES1820]] |
! style="background:#efefef;" | [[VLSI VES1820|VES1820]] |
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! [[DVB-C]]/[[QAM]] Demod produced by [[VLSI Technology]] |
! [[DVB-C]]/[[QAM]] Demod produced by [[VLSI Technology]] |
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Revision as of 16:02, 15 August 2007
A Demodulator (short Demod) recovers (demodulates) the original information from the received and downconverted RF signal. In case of digital TV this is the MPEG2 Transport Stream, in case of analogue TV the Composite Signal.
Digital Demodulators also perform Forward Error Correction (Convolutional Viterbi- and Block-Reed-Solomon-Decoding).