Abstract: An outdoor enclosure for housing electronic display equipment constructed of a plurality of extrusions welded to side plates and top and bottom plates which allows easy access to the electronics through a tethered bottom door. The enclosure can house one or more electronic display faces. The front and rear surfaces can be glass, polycarbonate or metal and are held in place by an elastic cord. The enclosure is sealed on the ends by the use of gasketing between the main housing body and the end panels. The design of the enclosure discourages birds from roosting on the front and rear edges. Internally the enclosure provides for the electronics to be mounted on an easily removable plate which incorporates a unique continuous hook. The electronic sub-assembly plate is held in place by a simple elastic hose retainer. Installation and removal of the electronics sub-assembly requires no tools.

Abstract: The decoder is capable of locating a data signal within any horizontal line of a video signal, thereby eliminating the necessity for keeping track of the line numbers. The pre-data portion is detected and the data portion is stored in the same register. DC level restoration of the video signal is performed periodically during digitizing. When the decoder is used to receive a data signal in the standard FCC waveform, the clock run in portion, normally used for synchronization in conventional decoders, is detected and the operating rate of the register is adjusted to the rate of the data portion for a number of clock signals equal to the number of data bits to capture the data portion. Once the data has been captured, further signals are prevented from entering the register for approximately one frame to permit the stored data to be retrieved.