US 6,982,992 B1
Multi-carrier signal transmitter and multi-carrier signal receiver
Hideki Iwami, Saitama (Japan)
Assigned to Sony Corporation, Tokyo (Japan)
Appl. No. 9/807,187
PCT Filed Aug. 10, 2000, PCT No. PCT/JP00/05372
§ 371(c)(1), (2), (4) Date Aug. 21, 2001,
PCT Pub. No. WO01/13559, PCT Pub. Date Feb. 22, 2001.
Claims priority of application No. 11-227815 (JP), filed on Aug. 11, 1999.
Int. Cl. H04J 1/00 (2006.01)
U.S. Cl. 370—480 7 Claims
OG exemplary drawing
 
1. A multi-carrier signal transmission apparatus for transmitting a signal in which first information necessary for synchronizing a transmission signal is disposed at a predetermined interval in second information, said apparatus comprising:
data arrangement means for arranging said first information and said second information;
first modulation means for generating a transmission symbol stream by modulating data created by said data arrangement means;
symbol generating means for expanding said transmission symbol stream generated by said first modulation means on a frequency axis to generate a symmetrical transmission symbol stream that is symmetrical on said frequency axis; and
second modulation means for converting said symmetrical transmission symbol stream generated by said symbol generating means by performing reverse Fourier transformation.