Television – Receiver circuitry – Demodulator
Patent
1995-05-11
1996-10-29
Kostak, Victor R.
Television
Receiver circuitry
Demodulator
329341, H04N 5455
Patent
active
055701370
ABSTRACT:
A device for digital demodulation of the video and audio elements of a television signal has a digital preprocessing stage for conditioning a complex digital signal for digital demodulation of a television signal at intermediate frequency, a first complex mixing device shifting the video sub-carrier to the frequency 0, a common mixing device used on the input side for the demodulation of the audio signals, and the audio signal processing is not split until after this mixing device. Therefore, fully digital signal processing is possible for television signals from the intermediate frequency, with limited filter complexity.
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patent: 5410368 (1995-04-01), Krishnamurthy
IEEE Transactions on Communications, vol. 37, No. 2, Feb. 1989, pp. 159-163.
Signal Processing 9, 1985, pp. 263-276 "Equalization problems in a digital FM Receiver".
9th International Conference on Digital Satellite Communications, Copenhagen, 1992, pp. B8 247-B8 254.
Multirate Digital Signal Processing, Crochiere et al, 1983, pp. 1-35.
ANT Nachrichtentechnik GmbH
Kostak Victor R.
Striker Michael J.
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