デジタルオーディオ放送(DAB)システムにおけるデジタル信号の送受信方法

Japanese Patent JP4527864

B2

An interleaving method and apparatus is disclosed for an in-band on-channel (IBOC) digital audio broadcasting (DAB) system. The disclosed interleaver method and apparatus utilize a convolutional interleaver having a row size equal to one OFDM symbol and a time span of arbitrary size. A structured memory block is utilized in the de-interleaver at the receiver having a row size of one OFDM symbol (the number of active sub-carriers in the applicable sub-band of the IBOC system). The self-synchronizing nature of the present invention permits a receiver in an OFDM-based IBOC system to sort the scrambled blocks and descramble the received symbols according to its own frame count, without regard to the frame count of the transmitter. The disclosed interleaver method and apparatus does not require interleaver synchronization between the transmitter and receiver. In one implementation, separate convolutional encoders and convolutional interleavers are applied to each sub-band in a multi-stream structure to provide independent error spreading for each sub-band.

JPS52153303	DATA RECEPTION CIRCUIT
JP3366318	[Title of the Invention] Error correction method for high-density discs

Marlec Milber

JP2000275866A

August 18, 2010

September 12, 2000

Click for automatic bibliography generation  

Alcatel-Lucent USA Inc.

H03M13/27; H04J11/00; H04B1/16; H04H20/00; H04L27/26; H04L1/00

JP10336594A
JP2000312194A
JP2001016173A
JP2003505925A
JP10276343A

WO1999008412A1
US5949796
WO2000054445A1

Okabe
Masao Okabe
Nobuaki Kato
Kazuo
Shinichi Usui
Ikuo Fujino
Takao Ochi
Teruhisa Motomiya
Norimichi Takanashi
Asahi Shinmitsu
Seiichiro Takahashi
Koji Yoshizawa
Hirofumi Mimata

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