05134464 is referenced by 159 patents and cites 4 patents.

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.

Title
Method and apparatus for the transmission and reception of a multicarrier digital television signal
Application Number
252954
Publication Number
5134464
Application Date
January 29, 1991
Publication Date
July 28, 1992
Inventor
Yo Sung Ho
Ossining
NY, US
Mikhail Tsinberg
Riverdale
NY, US
Faramarz Azadegan
Brookfield
CT, US
David A Bryan
Danbury
CT, US
Alan P Cavallerano
Ossining
NY, US
Aldo G Cugnini
Tarrytown
NY, US
Carlo Basile
Ossining
NY, US
Agent
Michael E Marion
Assignee
North American Philips Corporation
NY, US
IPC
H04N 7/06
H04N 11/12
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