| 摘要 |
PURPOSE: An apparatus for detecting vestigial side band mode of digital television is provided to detect the VSB(Vestigial Side Band) mode even when much noise is present. CONSTITUTION: An apparatus for detecting vestigial side band mode of digital television includes a first VSB mode detector, a second VSB mode detector, a comparator and a selector. The first VSB mode detector detects the VSB mode from the signal input at a channel equalizer. The second VSB mode detector detects the VSB mode from the signal equalized at the channel equalizer. The comparator compares the VSB mode signals from the first and the second VSB mode detectors and outputs a select signal according to the compared result. The selector outputs the VSB mode signal from the two detectors to the channel equalizer. |
