Invention Grant
- Patent Title: Supervision for a light display device
- Patent Title (中): 监控光显示设备
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Application No.: US12885047Application Date: 2010-09-17
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Publication No.: US08614550B2Publication Date: 2013-12-24
- Inventor: Joseph D. Farley
- Applicant: Joseph D. Farley
- Applicant Address: US MA Westminster
- Assignee: SimplexGrinnell LP
- Current Assignee: SimplexGrinnell LP
- Current Assignee Address: US MA Westminster
- Agency: Kacvinsky Daisak pllc
- Main IPC: H05B37/00
- IPC: H05B37/00 ; G05F1/00
Abstract:
A device and method may include, in a display device, emitting visible light in a humanly imperceptible manner and sensing said light to verify operation of the display device.
Public/Granted literature
- US20120068607A1 SUPERVISION FOR A LIGHT DISPLAY DEVICE Public/Granted day:2012-03-22
Information query
