发明名称 Distortion correction control apparatus and distortion correction control method
摘要 A distortion correction control apparatus is for compensating for a burst distortion in a transmission amplifier caused by a burst of an input signal of a transmission target. The apparatus includes a holding unit that stores a distortion correction coefficient having reverse characteristics to the burst distortion; a unit that multiplies the distortion correction coefficient read out from the holding unit by the input signal or adds the distortion correction coefficient read out from the holding unit to the input signal, upon reception of burst information notifying of switching between presence and absence of the input signal; and an update unit that updates, based on the input signal, the distortion correction coefficient of the last time, and a signal fed back as an output signal of the transmission amplifier, the distortion correction coefficient by an adaptive algorithm, and that inputs the updated distortion correction coefficient to the holding unit.
申请公布号 US7746957(B2) 申请公布日期 2010.06.29
申请号 US20090567431 申请日期 2009.09.25
申请人 FUJITSU LIMITED 发明人 ISHIKAWA HIROYOSHI;NAGATANI KAZUO;HAMADA HAJIME;FUDABA NOBUKAZU;UTSUNOMIYA YUICHI;OISHI YASUYUKI
分类号 H04L25/49;H03C3/08 主分类号 H04L25/49
代理机构 代理人
主权项
地址