发明名称 Method and system for clearing a frequency band
摘要 A cable system (10) has a plurality of CAUs (34) coupled to a variety of network devices (58-68) in the subscriber's premise (36). The network devices (58-68) transmit signals to the CAU (34) in a clear frequency (100). The signals are coupled to a filter (70) which blocks any ingress noise from the premise (36). The filter (70) is coupled to a mixer (76), which down converts the signals from the clear frequency (100) to a desired frequency (104). Upstream signals in a bypass band (102) are coupled from the network devices to a low pass filter (72). The signals are then combined with the downconverted signals and transmitted into the cable system (10).
申请公布号 US5966410(A) 申请公布日期 1999.10.12
申请号 US19960678166 申请日期 1996.07.11
申请人 MOTOROLA, INC. 发明人 FREYMAN, PHILLIP KENT;MASTENBROOK, GARY E.
分类号 H04B3/38;H04H60/97;H04N7/10;H04N7/173;(IPC1-7):H04K27/20;H04L1/02 主分类号 H04B3/38
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