Demodulator: Difference between revisions
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! [[DVB-C]]/[[QAM]] Demod produced by [[Atmel Corporation]] |
! [[DVB-C]]/[[QAM]] Demod produced by [[Atmel Corporation]] |
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! style="background:#efefef;" | [[CX22700]] |
! style="background:#efefef;" | [[Conexant CX22700|CX22700]] |
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! [[DVB-T]]/[[COFDM]] Demod produced by [[Conexant Systems, Inc.]] |
! [[DVB-T]]/[[COFDM]] Demod produced by [[Conexant Systems, Inc.]] |
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! style="background:#efefef;" | [[CX24110]] |
! style="background:#efefef;" | [[Conexant CX24110|CX24110]] |
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! [[DVB-S]]/[[QPSK]] Demod produced by [[Conexant Systems, Inc.]] |
! [[DVB-S]]/[[QPSK]] Demod produced by [[Conexant Systems, Inc.]] |
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Revision as of 01:55, 19 April 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).