Patent Number: 6,305,110

Title: Interchangable modular programmable neon sign

Abstract: A modular neon sign control system with a plurality of discrete neon letters, numbers or symbols, each with plugs to plug into at any place along a continuous electrical rail. Each neon letter, etc. is a single tube having its own driving inverter and digital decoder. Dip switches set a unique digital code into the decoder for each letter. A programmed memory controls a system encoder which sends coded signals to each decoder to compare with each letter's unique code. Those letters receiving the matching digital signals are activated or deactivated according to the program. The letters, etc. of the sign can be operated simultaneously, serially, randomly, in a pattern, or in a flashing manner. Power from an ac adapter is supplied along with the signals from the encoder to the electrical rail, and the decoder separates the power from the coded signals. The letters may be individually and easily prearranged and substituted in a sign.

Inventors: Chang; Sheldon (Mount Vernon, NY)


International Classification: G09F 13/00 (20060101); G09F 13/26 (20060101); G09F 013/04 ()

Expiration Date: 10/23/2018