H - Electricity – 04 – L
Patent
H - Electricity
04
L
H04L 27/38 (2006.01) H04B 1/68 (2006.01) H04L 27/00 (2006.01) H04L 27/06 (2006.01)
Patent
CA 2338411
A vestigial sideband/quadrature amplitude modulation (VSB/QAM) receiver, which receives both a VSB signal and a QAM signal, and a method thereof are provided. The receiver has an analog-digital converter for A/D converting according to a frequency higher than the symbol frequency of a received signal; an interpolator for calculating a signal value on the original symbol location after a signal from the A/D converter is applied; a carrier wave restoration unit for restoring a carrier wave by selectively using an automatic frequency control (AFC) and a digital frequency phase locked loop (DFPLL) according to a VSB/QAM mode after a signal from the interpolator is applied; a timing processor for receiving a signal from the carrier wave restoration unit, detecting a timing error after making a symbol input time different according to a VSB/QAM mode, controlling the interpolator based on the detected timing error, and generating a restored clock; and a VSB sorter for extracting a VSB receiving symbol. Therefore, according to the receiver, by restoring a carrier wave with a restored symbol clock after restoring symbol timing in the front part of the carrier wave restoration unit, a frequency having low symbol rate can be used, correction of the distortions in a carrier wave can be quickly done, and requirement for additional hardware for receiving a VSB signal can be very smaller.
Ridout & Maybee Llp
Samsung Electronics Co. Ltd.
LandOfFree
Vsb/qam receiver and method does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Vsb/qam receiver and method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Vsb/qam receiver and method will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1998281