| 摘要 |
A digital cable receiver capable of improving reception performance of an additional signal in an out-of-band channel and a method of receiving the additional signal. The digital cable receiver can include an out-of-band filter to output the out-of-band channel, a band splitting unit to split the out-of-band channel into a predetermined number of frequency bands, a band selection unit to select a frequency band carrying the additional signal out of the split predetermined number of frequency band, a down-converter to down convert the additional signal in the selected frequency band into a predetermined intermediate frequency signal, and a control unit to control the band selection unit and the down-converter in cooperation with the cable card. Accordingly, the digital cable receiver can selectively pass only the frequency band carrying the additional signal out of the out of band channel using the information on the frequency band carrying the additional signal in the out-of-band channel obtained by cooperating with the cable card and can down-convert the selected frequency band, thereby eliminating interference with other channels adjacent to the additional signal. |
