Invention Grant
US07813330B2 Gap filler apparatus and method for providing cyclic delay diversity in a digital multimedia broadcasting system, and broadcasting relay network using the same
有权
用于在数字多媒体广播系统中提供循环延迟分集的间隙填充装置和方法，以及使用其的广播中继网络
- Patent Title: Gap filler apparatus and method for providing cyclic delay diversity in a digital multimedia broadcasting system, and broadcasting relay network using the same
- Patent Title (中): 用于在数字多媒体广播系统中提供循环延迟分集的间隙填充装置和方法，以及使用其的广播中继网络
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Application No.: US11293638Application Date: 2005-12-02
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Publication No.: US07813330B2Publication Date: 2010-10-12
- Inventor: Hyun-Seok Yu , Hyun-Seok Oh , Ji-Won Ha , Min-Goo Kim
- Applicant: Hyun-Seok Yu , Hyun-Seok Oh , Ji-Won Ha , Min-Goo Kim
- Applicant Address: KR
- Assignee: Samsung Electronics Co., Ltd
- Current Assignee: Samsung Electronics Co., Ltd
- Current Assignee Address: KR
- Agency: The Farrell Law Firm, LLP
- Priority: KR10-2004-0101454 20041203
- Main IPC: H04B7/216
- IPC: H04B7/216
Abstract:
A gap filler apparatus providing cyclic delay diversity in a digital multimedia broadcasting (DMB) system. In the gap filler apparatus, a receiver receives an orthogonal frequency division multiplexing (OFDM) signal transmitted as a broadcasting signal. A symbol synchronization unit acquires symbol synchronization of the OFDM signal, detects a guard interval of an OFDM symbol using the symbol synchronization, determines a sample length, by which the OFDM symbol is cyclic-delayed within the guard interval, and cyclic-delays the OFDM signal by the determined sample length. An amplifier amplifies the cyclic-delayed OFDM signal. A transmitter transmits the amplified OFDM signal to a wireless network.
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