Importance

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Abstract

A conventional billboard for displaying a visual message is combined with a communication system for enabling a message related to the message displayed by the billboard to be transmitted from the billboard to passengers of automotive vehicles driving by said billboard. The communication system includes a transmitter located at the billboard and connected to an external telephone line. A telephone unit, disposed at a remote business office, supplies the related message over the telephone line to the transmitter. Receivers, located in individual automotive vehicles, receive the transmitted message. The transmitter includes a recorder for recording the related message received from the telephone unit and a control unit for controlling recording and playback of that message.

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First Claim