Excavating
Patent
1995-04-06
1997-10-14
Baker, Stephen M.
Excavating
H03M 1300, H03M 1322
Patent
active
056779119
ABSTRACT:
A data frame structure for a digital information signal comprises a first fixed number of repetitive data segments each containing a second fixed number of M-level symbols representing a plurality of data bytes and a data segment sync character. The frame further includes a header segment including a frame sync code and a mode code defining the value of M for the data frame. The data frame incorporates error correction blocks and is configured to provide an integral number of data bytes and error correction blocks for each of a plurality of different values of M.
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Electronics and Communication Engineering Journal, vol. 4, No. 4, Aug. 1992, pp. 167-176, Webb, "QAM: The Modulation Scheme for Future Mobile Radio Communications?".
Fimoff Mark
Laud Timothy G.
Baker Stephen M.
Zenith Electronics Corporation
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