Title:
SIGNAL PROCESSING DEVICE AND IMAGE DISPLAY DEVICE INCLUDING SAME
Document Type and Number:
WIPO Patent Application WO/2021/221195
Kind Code:
A1
Abstract:
The present invention relates to a signal processing device and an image display device including same. A signal processing device according to an embodiment of the present invention comprises: a sampler that down-samples a base band signal; a memory that stores down-sampled data; a frequency shifter that reads data stored in the memory and shifts the read data in a frequency domain; a symbol rate calculation unit that calculates a symbol rate on the basis of the shifted data; a first offset calculation unit that calculates a first carrier frequency offset on the basis of the calculated symbol rate; a second offset calculation unit that calculates a second carrier frequency offset on the basis of the calculated first carrier frequency offset; and an offset compensation unit that compensates for the second carrier frequency offset. By this configuration, the time taken to complete demodulation can be shortened on the basis of a base band signal.
Inventors:
HE YECHENG (KR)
Application Number:
PCT/KR2020/005591
Publication Date:
November 04, 2021
Filing Date:
April 28, 2020
Export Citation:
Assignee:
LG ELECTRONICS INC (KR)
International Classes:
H04L25/03; H04L7/00; H04L7/027; H04L27/26; H04N5/455; H04N21/438
Foreign References:
| US20120014467A1 | 2012-01-19 | |||
| JP2000324182A | 2000-11-24 | |||
| KR20190082546A | 2019-07-10 | |||
| KR20130132952A | 2013-12-05 | |||
| KR20180061239A | 2018-06-07 |
Attorney, Agent or Firm:
PARK, Byung Chang (KR)
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