发明名称 |
Wireless apparatus and signal processing method |
摘要 |
A wireless apparatus includes: an A/D converter which samples an in-phase signal component and a quadrature signal component from a quadrature-modulated signal of analog form alternately; a digital quadrature demodulation unit which applies digital quadrature demodulation to an output signal of the A/D converter and outputs an in-phase signal and a quadrature signal; and an error detection unit which, based on the in-phase and quadrature signals output from the digital quadrature demodulation unit, detects a time difference error between the sample timing of the in-phase signal component and the sample timing of the quadrature signal component. |
申请公布号 |
US8442157(B2) |
申请公布日期 |
2013.05.14 |
申请号 |
US20100794124 |
申请日期 |
2010.06.04 |
申请人 |
ISHIKAWA HIROYOSHI;NAGATANI KAZUO;HAMADA HAJIME;FUDABA NOBUKAZU;UTSUNOMIYA YUICHI;OHBA TAKESHI;SHAKO HIDEHARU;FUNYU YASUHITO;FUJITSU LIMITED |
发明人 |
ISHIKAWA HIROYOSHI;NAGATANI KAZUO;HAMADA HAJIME;FUDABA NOBUKAZU;UTSUNOMIYA YUICHI;OHBA TAKESHI;SHAKO HIDEHARU;FUNYU YASUHITO |
分类号 |
H04B1/38 |
主分类号 |
H04B1/38 |
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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