Excavating
Patent
1980-11-14
1983-01-25
Atkinson, Charles E.
Excavating
371 30, 375 40, 455 8, G06F 1108, H03K 1332
Patent
active
043707459
ABSTRACT:
Transmission configurations are described for providing usable service despite the complete interruption of one or more of several transmission links. This is accomplished by encoding (11) the information content of each of a plurality of input signals (S.sub.1, S.sub.2 . . . S.sub.n) into a multiplicity of encoded signals (s.sub.1, s.sub.2 . . . s.sub.m) for simultaneous transmission along a multiplicity of transmission links (13.1, 13.2 . . . 13.m). At the receiver, a decoder (12) recovers the individual input signals. By accepting temporarily either a bandwidth or a signal-to-noise reduction, service is continued even though one or more of the transmission links fails.
REFERENCES:
patent: 3409875 (1968-11-01), De Jager et al.
patent: 3444516 (1969-05-01), Lechleider
patent: 3452328 (1969-06-01), Hsiao et al.
patent: 3526837 (1970-09-01), Zegers et al.
patent: 4081790 (1978-03-01), Yamamoto et al.
Atkinson Charles E.
Bell Telephone Laboratories Incorporated
Sherman S.
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