Abstract: Embodiments of a multiple sign controller are generally described herein. Many embodiments include a multiple sign controller system. In some embodiments, the multiple sign controller can comprise a computer, a single instance of an operating system configured to run on the computer, two or more virtual sign controller instances, one or more physical communication ports coupled to the computer, and two or more virtual ports configured to run on the single instance of the operating system. In many embodiments, a first virtual port of the two or more virtual ports can be associated with a first virtual sign controller instance of the two or more virtual sign controller instances. Other embodiments may be described and claimed.

Abstract: Embodiments of a highway variable message sign with apertures are generally described herein. Various embodiments of a highway message sign comprise a housing and one or more circuit boards. In many embodiments, each of the one or more circuit boards have a plurality of pixels, and each pixel of the plurality of pixels can include one or more lighting elements. The highway message sign can further comprise a glazing adjacent to the lighting elements and a mask attached to the housing and adjacent to the glazing. The mask can have a plurality of apertures aligned with the plurality of pixels at an offset, wherein each pixel of the plurality of pixels is aligned at a different one of the plurality of apertures such that the one or more lighting elements of any pixel of the plurality of pixels are aligned to the same aperture. Other embodiments may be described and claimed.

Abstract: Embodiments of a multiple sign controller are generally described herein. Many embodiments include a multiple sign controller system. In some embodiments, the multiple sign controller can comprise a computer, a single instance of an operating system configured to run on the computer, two or more virtual sign controller instances, one or more physical communication ports coupled to the computer, and two or more virtual ports configured to run on the single instance of the operating system. In many embodiments, a first virtual port of the two or more virtual ports can be associated with a first virtual sign controller instance of the two or more virtual sign controller instances. Other embodiments may be described and claimed.

Abstract: An outdoor display sign has a display enclosure. The display enclosure has a number shades that reduce the solar loading on the display enclosure. The outdoor display sign has shades covering the top, back, sides and parts of the front of the sign. The shades are offset from the display enclosure to allow natural airflow between the shade and the display enclosure.

Abstract: A display and messaging sign includes a number of pixels and a hooded face plate. The hooded face plate includes a number of hooded apertures, with a hood over each of the pixels. Each pixel is aligned with an aperture.

Abstract: An automated filter changing device (20) includes a filter reel system (22). A motor (24) is connected to the filter reel system (22). An airflow sensor (26) is in an airflow of the filter reel system (22). A controller (28) is connected to the motor (24) and the airflow sensor (26). The airflow sensor (26) determines when the airflow is below an acceptable threshold. When the airflow is below an acceptable threshold, the controller (28) tells the motor (24) to index the filter reel system (22).

Abstract: An LED jig for securing a plurality of individual light emitting diodes to a circuit board module. The LED jig comprises a disk shaped structure having a plurality of openings in which the light emitting diodes are positioned. Flanges on each end of the openings serve to secure the light emitting diodes therein. The LED jig also comprises structures which protect the light emitting diodes from possible damage, structures which serve to secure the LED jig to the circuit board module, structures which serve as guides for properly mounting the LED jig to the circuit board, and structures which serve to offset the LED jig from the circuit board module.