Simplified set-top converter for broadband switched network,申请号US19920990456-传众专利搜索

Simplified set-top converter for broadband switched network

申请公布号：US5483277(A)

申请号：US19920990456

申请日期：1992.12.15

申请公布日期：1996.01.09

申请人：

ALCATEL NETWORK SYSTEMS

发明人：GRANGER, ALAIN

分类号：H04N7/16;(IPC1-7):H04N7/16

主分类号：H04N7/16

摘要：For fiber-to-the-curb program switching, which is done at the central office, the same fixed frequency slot is always used for distributing the TV program selected for a video recording device at the subscriber's premises; for its related display, another selected slot is always used for distributing another selected TV program; the set-top converter is provided with two narrow band filters, one for each dedicated slot, instead of expensive tuners; the same set-top converter can be used in other rooms of the subscriber premises, except using a plug-in tuner for placing additional selected TV programs received from remaining, nondedicated slots into the same filter band used for the TV associated with the video recording device.