H - Electricity – 04 – N
Patent
H - Electricity
04
N
H04N 7/08 (2006.01) H04L 27/26 (2006.01) H04N 5/21 (2006.01) H04N 7/06 (2006.01) H04N 5/44 (2006.01)
Patent
CA 2059976
Method and apparatus for the transmission and reception of a multicarrier digital television signal. A method and apparatus for encoding a television source signal having a first bandwidth, into a frequency multiplexed signal having a narrower bandwidth and comprising a plurality of subcarriers modulated with digital information. Each of said subcarriers has an amplitude, bandwidth and coding characteristic which reflects the relative importance of the digital information provided thereby. The frequency multiplexed signal is suitable for use in a broadcasting environment wherein a conventional television signal is also used and wherein said subcarriers are disposed in frequency, in positions which are least likely to result in interference to or from said conventional signal. The invention also includes a receiver for decoding the frequency multiplexed signal and for providing a high definition display.
Azadegan Faramarz
Basile Carlo
Bryan David A.
Cavallerano Alan P.
Cugnini Aldo G.
Fetherstonhaugh & Co.
Koninklijke Philips Electronics N.v.
N.v. Philips Gloeilampenfabrieken
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