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AssigneeSamsung Electronics Co., Ltd.
InventorsHae-joo Jeong, Yong-deok Chang
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A digital broadcast transmitting/receiving system and a signal processing method thereof that can improve the receiving performance of the system. A digital broadcast transmitter has a randomizer to randomize an input data stream which has null bytes being inserted at a specified position, a multiplexer to output a data stream formed by inserting specified known data into the position of the null bytes of the randomized data stream, an encoder to encode the data stream outputted from the multiplexer, and a modulator/RF-converter to modulate the encoded data, RF-convert the modulated data and transmit the RF-converted data. The receiving performance of the digital broadcast transmitting/receiving system can be improved even in a multi-path channel by detecting the known data from the received signal and using the known data in synchronization and equalization in a digital broadcast receiver.
A digital broadcast receiver configured to receive a signal from a digital transmitter, wherein the digital transmitter comprises a known data exchanger inserting known data at a certain position in data, an interleaver interleaving the data including the known data, a trellis encoder trellis encoding the interleaved data including the known data having a specified length of bytes to an 8-level symbol at a rate of ⅔, and a modulator performing a VSB modulation of the trellis encoded data, the digital broadcast receiver comprising:
A digital broadcast receiver configured to receive a signal from a digital transmitter, wherein the digital transmitter comprises a known data exchanger inserting known data at a certain position in data, the known data being a predefined sequence known between the digital transmitter and the digital broadcast receiver, an interleaver interleaving the data including the known data, a trellis encoder trellis encoding the interleaved data including the known data having more than 2 bytes to an 8-level symbol at a rate of ⅔, and a modulator performing a VSB modulation of the trellis encoded data, the digital broadcast receiver comprising:
A signal processing method for a digital broadcast receiver receiving a signal from a digital transmitter that inserts known data at a certain position in data, the known data being a predefined sequence known between the digital transmitter and the digital broadcast receiver, interleaves the data including the known data, and trellis encodes the interleaved data including a successive data stream of the known data to an 8-level symbol at a rate of ⅔, the signal processing method comprising:
Dependencies are inferred from the claim text.