Communications: electrical – External condition vehicle-mounted indicator or alarm – Highway information
Reexamination Certificate
2006-08-22
2006-08-22
Nguyen, Tai T. (Department: 2612)
Communications: electrical
External condition vehicle-mounted indicator or alarm
Highway information
C340S907000, C340S908000, C340S539100, C340S601000, C362S494000, C362S545000, C362S490000
Reexamination Certificate
active
07095337
ABSTRACT:
A self-luminous road sign system comprises a plurality of sensor units1 . . . 1each of which is equipped at least with a visibility meter and an illuminance meter, or which may be equipped with an anemovane and a thermometer as well as the visibility meter and the illuminance meter; and an information processing and management department2for centralized management of weather information detected by the plural sensor units in order to predict any danger in the road observation area, wherein the output information from the information processing and management department2is displayed on road installations4 . . . 4connected via a network. Based on the road background brightness obtained by the illuminance meter in the sensor unit, the optimum luminous brightness which provides a predetermined contrast is calculated. Based on this optimum luminous brightness and depending on the visibility information outputted from the visibility meter, the luminous brightness or information display of the sign part is controlled.
REFERENCES:
patent: 3973852 (1976-08-01), Moore et al.
patent: 4298869 (1981-11-01), Okuno
patent: 4613938 (1986-09-01), Hansen et al.
patent: 4841278 (1989-06-01), Tezuka et al.
patent: 5184114 (1993-02-01), Brown
patent: 5729214 (1998-03-01), Moore
patent: 5771484 (1998-06-01), Tognazzini
patent: 5848378 (1998-12-01), Shelton et al.
patent: 5982288 (1999-11-01), Sawatari et al.
patent: 6150774 (2000-11-01), Mueller et al.
patent: 6208938 (2001-03-01), Doerfel
patent: 6812851 (2004-11-01), Dukach et al.
patent: 9128688 (1997-05-01), None
Hishigaki Youichirou
Imazu Ryuji
Kondou Shigeki
Ogata Motonori
Sudou Terumasa
Nguyen Tai T.
Rader & Fishman & Grauer, PLLC
Sekisui Jushi Kabushiki Kaisha
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