Invention Grant
US07391632B2 Apparatus of selectively performing fast hadamard transform and fast fourier transform, and CCK modulation and demodulation apparatus using the same
失效
选择性地执行快速hasamard变换和快速傅里叶变换的装置，以及使用其的CCK调制和解调装置
- Patent Title: Apparatus of selectively performing fast hadamard transform and fast fourier transform, and CCK modulation and demodulation apparatus using the same
- Patent Title (中): 选择性地执行快速hasamard变换和快速傅里叶变换的装置，以及使用其的CCK调制和解调装置
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Application No.: US11273727Application Date: 2005-11-14
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Publication No.: US07391632B2Publication Date: 2008-06-24
- Inventor: Tae-Joon Kim , Ik-Soo Eo , Kyung-Soo Kim , Hee-Bum Jung
- Applicant: Tae-Joon Kim , Ik-Soo Eo , Kyung-Soo Kim , Hee-Bum Jung
- Applicant Address: KR
- Assignee: Electronics and Telecommunications Research Institute
- Current Assignee: Electronics and Telecommunications Research Institute
- Current Assignee Address: KR
- Agency: Blakely Sokoloff Taylor & Zafman
- Priority: KR10-2004-0105824 20041214
- Main IPC: G11C19/08
- IPC: G11C19/08
Abstract:
A Fast Fourier Transform (FFT) apparatus for selectively performing Fast Hadamard transform (FHT), and a complementary code keying (CCK) modulation/demodulation apparatus using the same. An OFDM module and CCK module are integrated as one module having lower complexity compared to conventional scheme by embodying the CCK modulation using FFT structure in the OFDM module, and embodying the suboptimal and the optimized CCK modulations using FFT structure in OFDM module. CDMA, OFDM, CCK modules may be integrated as single module.
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