Gulton Industries, Inc.

Richard J Grassi

Robert E Rector

Larry T Taylor

Scott H Yarberry

In a display where all characters are displayed in equal sized spaces, such as a bus or vehicle sign, for example, the problem of characters appearing to merge from a distance is remedied. The spacing between characters is automatically adjusted in accordance with both the characteristics of the particular character representations displayed and their sequence within the display.

Variable font display

A memory transfer unit is provided which permits replacing messages stored in a message display system with a different set of messages stored in the memory transfer unit. A circuit is provided for supplying power from the message display system to the memory transfer unit and for inhibiting operation of the memory transfer unit unless the power supply to it has a proper operating voltage level. Pulses produced in the message display system are counted to determine the sequential locations of data in the memory transfer unit to be transferred to the message display unit for substitution for data stored in the message display unit.

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Royse City, TX, United States of America

Richard J Grassi