发明授权
- 专利标题： Low power LED visual messaging device, system and method
- 专利标题（中）： 低功耗LED视觉信息设备，系统和方法
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申请号： US11599036申请日： 2006-11-14
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公开(公告)号： US07982698B2公开(公告)日： 2011-07-19
- 发明人: Laurence E. Moulis, Jr. , Richard W. Massie
- 申请人： Laurence E. Moulis, Jr. , Richard W. Massie
- 申请人地址： US VA Charlottesville
- 专利权人： Inova Solutions, Inc.
- 当前专利权人： Inova Solutions, Inc.
- 当前专利权人地址： US VA Charlottesville
- 代理机构： Williams Mullen, PC
- 代理商 Thomas F. Bergert
- 主分类号： G09G3/32
- IPC分类号： G09G3/32
摘要：
A visual messaging system and device can employ high efficiency LEDs and current driven versus voltage driven circuits to reduce power consumption and enable the device to be powered from IEEE 802.3af (Power over Ethernet (PoE)) standard based power sources. The device can be powered from a local area network (LAN) connection using PoE, and does not require a separate AC power supply. The present invention also uses a 1× yellow algorithm to create the yellow color with one half the instantaneous current of previous circuits. The device can incorporate multiple message inputs for receiving and displaying messages having different priorities, allowing higher priority messages to override lower priority messages.
公开/授权文献
- US20070115273A1 Low power LED visual messaging device, system and method 公开/授权日：2007-05-24