Method and apparatus for communicating digital television signals using a signal constellation formed by four signal constellations placed in the quadrants
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United States of America Patent
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Oct 15, 1996
Issued Date -
N/A
app pub date -
Dec 29, 1994
filing date -
May 7, 1993
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A method and apparatus for transmitting a digital television signal using a first multipoint constellation comprised of a plurality of identical second constellations each having fewer points than the first constellation and each positioned in a different section of the first constellation. The receiver includes a decoder which decodes data as encoded in one of the second constellations. Additional bits, transmitted with the data, are also decoded at the receiver to identify which to section of the first constellation the second constellation belongs.
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Family
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Cited Art Landscape
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