H - Electricity – 04 – N
Patent
H - Electricity
04
N
H04N 5/38 (2006.01) H04N 5/44 (2006.01) H04N 7/08 (2006.01) H04N 7/24 (2006.01) H04N 7/13 (1990.01)
Patent
CA 2082654
ABSTRACT OF THE DISCLOSURE 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 comprises 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 the 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.
Citta Richard W.
Halozan Scott F.
Sgrignoli Gary J.
Citta Richard W.
Halozan Scott F.
Marks & Clerk
Sgrignoli Gary J.
Zenith Electronics Corporation
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