HEAD END HAVING A LOW NOISE CONVERTER WITH CHANNEL PRESELECTING FREQUENCY MULTIPLEXOR
摘要
<p>A head end (7) comprises a low noise converter (2) for providing signal bands including channels to one or more user units (3). The low noise converter is arranged as a low noise channel converter (2), which includes frequency multiplexing means (6) for multiplexing one or more user pre-selected channels to the user units (3). By effecting pre-selection in the low noise channel converter (2) the connection between the head end (7) and the user units (3) only contains a single communication medium (5), generally an already installed coaxial cable (5). Wanted channels for example for watching one television program and simultaneously recording another program are pre-selected and at the side of the low noise block put on the one cable.</p>
申请公布号
WO2004030365(A1)
申请公布日期
2004.04.08
申请号
WO2003IB50001
申请日期
2003.08.25
申请人
KONINKLIJKE PHILIPS ELECTRONICS N.V.;HOOIJMANS, PIETER, W.;VAUCHER, CICERO, S.