Television signal transmission system with carrier offset compensation
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United States of America Patent
Stats
-
Jan 19, 1993
Grant Date -
N/A
app pub date -
Mar 11, 1991
filing date -
Mar 11, 1991
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A television signal transmission system is used for transmitting an N-level video related data signal. The data signal is processed prior to transmission such that the majority of N-level symbols comprise a non-negative level for facilitating receiver lock-up. An in-phase pilot component may be added to the transmission by D.C. offsetting the processed signal to further facilitate receiver lock-up. The processed signal is precoded by a modulo-N filter and postcoded by a complementary linear filter in the receiver to reduce interfering NTSC components. In the absence of interfering NTSC components, a complementary modulo-N postcoding filter may be used in the receiver to provide improved signal to noise performance.
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Family
International Classification(s)
Cited Art Landscape
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