TELEVISION DISTRIBUTION SYSTEM FOR SIGNAL SUBSTITUTION
A cable television system in which the head end (127) substitutes different channels for various different geographic areas using separate trunk lines for each area.
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Format: | Patent |
Sprache: | eng ; fre |
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Zusammenfassung: | A cable television system in which the head end (127) substitutes different channels for various different geographic areas using separate trunk lines for each area. |
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