|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||340/928 ; 340/905 ; 340/9081 ; 340/929|
|발명자 / 주소|
|인용정보||피인용 횟수 : 75 인용 특허 : 0|
A traffic light timed advertising center includes an advertising display device, such as an electronic message center or other visual display device for displaying alpha-numeric and symbolic advertising messages, in which the advertising messages can be made selectively visible and invisible to drivers, is positioned adjacent a traffic control signal device having alternative signal phases for sequentially stopping and permitting the flow of traffic. A display control device, including an electronic control signal, coordinates the advertising display dev...
A variable message apparatus, electrically connected to and synchronized with a traffic control device, for displaying an alpha-numeric and symbolic display for disseminating information to oncoming traffic, comprising a display visibility means automatically controlled in such a way that the alpha-numeric and symbolic display may at times be visible and at other times may be effectively made invisible, and wherein said display visibility means is electronically programmed in such a way that the alpha-numeric and symbolic display may be automatically and...