Invention Grant
US07873112B2 Orthogonal frequency division multiplexing (OFDM) receiver, OFDM reception method and terrestrial digital receiver
有权
正交频分复用（OFDM）接收机，OFDM接收方式和地面数字接收机
- Patent Title: Orthogonal frequency division multiplexing (OFDM) receiver, OFDM reception method and terrestrial digital receiver
- Patent Title (中): 正交频分复用（OFDM）接收机，OFDM接收方式和地面数字接收机
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Application No.: US11729240Application Date: 2007-03-27
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Publication No.: US07873112B2Publication Date: 2011-01-18
- Inventor: Yoshiaki Nakamura
- Applicant: Yoshiaki Nakamura
- Applicant Address: JP Tokyo
- Assignee: Casio Computer Co., Ltd.
- Current Assignee: Casio Computer Co., Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Holtz, Holtz, Goodman & Chick, PC
- Priority: JP2006-091467 20060329
- Main IPC: H04K1/10
- IPC: H04K1/10
Abstract:
In an OFDM receiver, one antenna is selected and two moving average integration values (first moving average integration value AI and second moving average integration value AO) of a non-delay symbol and a delay symbol are calculated. Another antenna is selected and two moving average integration values (first moving average integration value BI and second moving average integration value BO) of a non-delay symbol and a delay symbol are calculated. When a result of an evaluation equation “AI/AO>BI/BO” is true, the C/N ratio of the one antenna is judged to be favorable. When the result of the evaluation equation “AI/AO>BI/BO” is false, the C/N ratio of the other antenna is judged to be favorable.
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