Patent ID: 6842488

Claim:
A vestigal sideband and quadrature amplitude modulation (VSB and QAM) receiver comprising: an analog-digital converter for converting a received analog signal into a digital signal in accordance with a clock having a predetermined frequency; an interpolator for restoring symbol timing by interpolating in an original location of a symbol a digital signal received from the analog-digital converter in accordance with a control of a timing processor; a carrier wave restoration unit for restoring a carrier wave of the digital signal by correcting distortions in frequency and phase of the symbol signal interpolated in the interpolator in accordance with a driving clock of the timing processor; a filter for matching a symbol signal in the carrier wave restored by the carrier wave restoration unit; the timing processor for calculating a timing error in the filtered symbol signal, controlling the interpolator based on the detected timing error, and generating the driving clock; and a VSB sorter for outputting the symbol output from the filter, the symbol in which the carrier wave and timing are restored, without change, or outputting the symbol after rearranging the symbol in accordance with a VSB/QAM mode.