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公开(公告)号:US20120098836A1
公开(公告)日:2012-04-26
申请号:US13243365
申请日:2011-09-23
申请人: Cheon-Shik Kim , Ki-Hwan Kwon , Sang-Hoon Song , Jun-Haeng Lee , Dong-Eun Lee
发明人: Cheon-Shik Kim , Ki-Hwan Kwon , Sang-Hoon Song , Jun-Haeng Lee , Dong-Eun Lee
IPC分类号: G06T13/00
CPC分类号: G06F3/0485 , G06F3/0483 , G06F3/04883
摘要: A method turns pages in an electronic book (e-book) reader. The method includes displaying an e-book as left/right pages and, if a page turn signal is generated, turning a left page or a right page while displaying an action of turning a left page to the right or a right page to the left as if turning pages of a paper book.
摘要翻译: 一种方法是在电子书(电子书)阅读器中翻页。 该方法包括将电子书显示为左/右页面,并且如果产生页面转向信号,则在向左或向右翻页的同时显示左页或右页的操作时转动左页或右页 仿佛转动纸本书的页面。
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公开(公告)号:US07177541B2
公开(公告)日:2007-02-13
申请号:US10148438
申请日:2001-11-09
申请人: Yun-Chur Chung , Jun-Haeng Lee
发明人: Yun-Chur Chung , Jun-Haeng Lee
IPC分类号: H04B10/08
CPC分类号: H04J14/02 , H04B10/07953
摘要: It is disclosed that a method and apparatus that automatically monitors each channel's optical signal-to-noise ration (OSNR) using optical filter and polarization extinction method in wavelength division multiplexing (WDM) scheme-based optical transmission systems. OSNR is simply measured using optical filter by comparing amplified spontaneous emission (ASE) over the signal band, of which bandwidth has changed, while leaving signal intensity intact, with that original signal and, OSNR measurement is allowable over a wider range of OSNR by minimizing the ratio of signal to ASE over the signal band using polarization extinction method.
摘要翻译: 公开了一种在基于波分复用(WDM)方案的光传输系统中使用滤光器和偏振消光方法自动监视每个通道的光信噪比(OSNR)的方法和装置。 通过比较放大的自发发射(ASE)在带宽已经改变的信号频带上,同时保持信号强度完整的原始信号,并且通过最小化OSNR在更宽范围的OSNR中允许OSNR来简单地测量OSNR 信号与ASE之间的信号频带比采用极化消光法。
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