| 摘要 |
PROBLEM TO BE SOLVED: To provide a filter including a configuration where elaborate external applications are fully integrated, while being free from equalization and suitable for multi-standard use. SOLUTION: The filter for processing received digital television signals comprises a Chebyshev filter 11, 12, a subsequent all-pass filter 13 and a control device 14 to 20 for controlling the Chebyshev filter 11, 12 and the all-pass filter 13 to adjust the bandwidth dependently upon the transmission standard of the received television signals. COPYRIGHT: (C)2008,JPO&INPIT
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