发明名称 |
METHOD AND APPARATUS FOR TRANSMISSION, AND MEDIUM |
摘要 |
Influences of adjacent signals are eliminated with no guard band used. A phase comparator (21) compares a window signal supplied from a frequency divider (22) with a reference window signal input to a PLL circuit (4), and provides the result of comparison for an LPF (23). The LPF (23) extracts low-frequency components from the input signal and supplies them to a voltage-controlled oscillator (24). The voltage-controlled oscillator (24) supplies an output signal to an OFDM modulator circuit (2) as a clock signal and to a frequency divider (22). The frequency divider (22) divides the input signal to generate a new window signal, which is supplied to an IFFT processor (13). The new window signal is also supplied to a PLL circuit (5), which in turn uses the supplied signal to generate a clock signal for controlling a frequency modulator circuit (3).
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申请公布号 |
WO0055998(A1) |
申请公布日期 |
2000.09.21 |
申请号 |
WO2000JP01483 |
申请日期 |
2000.03.10 |
申请人 |
SONY CORPORATION;IKEDA, YASUNARI;IKEDA, TAMOTSU;OKADA, TAKAHIRO |
发明人 |
IKEDA, YASUNARI;IKEDA, TAMOTSU;OKADA, TAKAHIRO |
分类号 |
H04J11/00;H04L27/26;(IPC1-7):H04J11/00 |
主分类号 |
H04J11/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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