Telecommunications – Interference signal transmission
Patent
1996-08-26
1998-10-13
Grant, Chris
Telecommunications
Interference signal transmission
348 12, H04N 7173
Patent
active
058226770
ABSTRACT:
Bandwidth is increased and noise may be reduced in a shared hybrid fiber-coax transmission system (10) by digitally modulating upstream information onto a high frequency band (e.g., 750-1000 MHz) and thereafter digitally regenerating both the high frequency upstream information as well as a portion of the downstream information not used for broadcast video (i.e., the 500-750 MHz band).
REFERENCES:
patent: 5408259 (1995-04-01), Warwick
patent: 5499047 (1996-03-01), Terry et al.
patent: 5528582 (1996-06-01), Bodeep et al.
patent: 5557319 (1996-09-01), Gurusami et al.
patent: 5625865 (1997-04-01), Moehrmann
AT&T Corp.
Grant Chris
LandOfFree
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