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公开(公告)号：US08829802B2
公开(公告)日：2014-09-09
申请号：US13506813
申请日：2012-05-18
申请人： Qi Cui Wei , Zong Bing Li , Xiao Song , Da Feng Weng
发明人： Qi Cui Wei , Zong Bing Li , Xiao Song , Da Feng Weng
CPC分类号： H05B37/02 , H05B33/0845 , Y02B20/14 , Y02B20/144
摘要： In order to keep the advantage of PWM dimming control scheme and make the LED driver high reliability and the LED lamp long lifetime, it is required that the frequency of PWM dimming control scheme is related with or the same as the output frequency of existed dimmers; and the output PWM dimming pulse is covered by the output pulse from dimmers further. The present invention discloses a novel “LED dimming control” scheme to make that the frequency of PWM dimming control scheme is related with or the same as the output frequency of dimmers; and the output PWM dimming pulse is covered by the output pulse from the dimmers further. In this way, it can guarantee that as PWM dimming pulse comes, the output from the dimmer can offer enough power to the LED driver and the LED driver can output the required LED driving current without flicker.
摘要翻译： 为了保持PWM调光控制方案的优势，使LED驱动器的可靠性高，LED灯具寿命长，要求PWM调光控制方案的频率与存在的调光器的输出频率相同或相同; 并且输出PWM调光脉冲进一步被来自调光器的输出脉冲覆盖。 本发明公开了一种新颖的“LED调光控制”方案，使PWM调光控制方案的频率与调光器的输出频率相同或相同; 并且输出PWM调光脉冲进一步被来自调光器的输出脉冲覆盖。 这样，可以保证随着PWM调光脉冲的出现，来自调光器的输出可以为LED驱动器提供足够的电力，而LED驱动器可以不闪烁地输出所需的LED驱动电流。
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公开(公告)号：US20120306401A1
公开(公告)日：2012-12-06
申请号：US13506813
申请日：2012-05-18
申请人： Qi Cui Wei , Da Feng Weng , Zong Bing Li , Xiao Song
发明人： Qi Cui Wei , Da Feng Weng , Zong Bing Li , Xiao Song
IPC分类号： H05B37/02
CPC分类号： H05B37/02 , H05B33/0845 , Y02B20/14 , Y02B20/144
摘要： In order to keep the advantage of PWM dimming control scheme and make the LED driver high reliability and the LED lamp long lifetime, it is required that the frequency of PWM dimming control scheme is related with or the same as the output frequency of existed dimmers; and the output PWM dimming pulse is covered by the output pulse from dimmers further. The present invention discloses a novel “LED dimming control” scheme to make that the frequency of PWM dimming control scheme is related with or the same as the output frequency of dimmers; and the output PWM dimming pulse is covered by the output pulse from the dimmers further. In this way, it can guarantee that as PWM dimming pulse comes, the output from the dimmer can offer enough power to the LED driver and the LED driver can output the required LED driving current without flicker.
摘要翻译： 为了保持PWM调光控制方案的优势，使LED驱动器的可靠性高，LED灯具寿命长，要求PWM调光控制方案的频率与存在的调光器的输出频率相同或相同; 并且输出PWM调光脉冲进一步被来自调光器的输出脉冲覆盖。 本发明公开了一种新颖的LED调光控制方案，使得PWM调光控制方案的频率与调光器的输出频率相同或相同; 并且输出PWM调光脉冲进一步被来自调光器的输出脉冲覆盖。 这样，可以保证随着PWM调光脉冲的出现，来自调光器的输出可以为LED驱动器提供足够的电力，而LED驱动器可以不闪烁地输出所需的LED驱动电流。
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公开(公告)号：US09787616B2
公开(公告)日：2017-10-10
申请号：US14419718
申请日：2012-08-22
CPC分类号： H04L51/04 , G06Q10/101 , G06Q50/10 , H04L67/06
摘要： An approach, is presented for exchanging status updates while on and/or offline when collaborating on various activities via one or more networks. A method comprises determining one or more tasks associated with at least one collaborative activity for one or more devices participating in the at least one collaborative activity. The method also comprises determining status information for the one or more tasks with respect to the one or more devices. Further, the method also comprises causing, at least in part, an exchange of the status information among the one or more devices via at least one communication mechanism that supports offline messaging.
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