Pulse or digital communications – Transmitters
Reexamination Certificate
2004-07-15
2010-06-15
Payne, David C (Department: 2611)
Pulse or digital communications
Transmitters
C375S260000, C375S324000, C370S208000, C370S500000
Reexamination Certificate
active
07738589
ABSTRACT:
A digital broadcasting transmission/reception system having an improved receiving performance and a signal processing method thereof. The transmission system includes a FEC encoder encoding an incoming signal according to a certain FEC scheme, a sync insertion unit inserting a sync into the encoded signal, a hidden pilot insertion unit inserting a hidden pilot into the sync-inserted signal, a pilot insertion unit inserting a pilot tone into the hidden-pilot-inserted signal, a pulse shaping filter pulse-shaping the pilot-tone-inserted signal with a certain roll-off factor, and a RF unit transmitting the pulse-shaped signal through a transmission channel band. Performances of equalization and synchronization acquirement can be enhanced in multipath conditions by utilizing the transmission system containing the hidden pilot.
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Franco Mazzenga, “Channel estimation and equalization for M-QAM transmission with a hidden pilot sequence”, Jun. 2000, IEEE transactions on broadcasting, vol. 46 No. 2, pp. 170-176.
Kim Joon-soo
Kwak Jung-won
Lee Dong-hoon
Park Chan-sub
Guarino Rahel
Payne David C
Samsung Electronics Co,. Ltd.
Sughrue & Mion, PLLC
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