Electronic billboard with telephone call-in control

Details Electronic billboard with telephone call-in control Electronic billboard with telephone call-in control

1996-11-05

1998-12-08

Tsang, Fan S.

Telephonic communications

Audio message storage, retrieval, or synthesis

348383, 348744, 381 5, 455 18, 455 49, 455 67, 455 70, 4551584, 4551861, 455500, H04M 164, H04M 566, H04H 500, H04B 118, H04B 100

Patent

active

058481290

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.

REFERENCES:
patent: 4027107 (1977-05-01), Eilers
patent: 5133081 (1992-07-01), Mayo
patent: 5193214 (1993-03-01), Mardus et al.
patent: 5214793 (1993-05-01), Conway et al.
patent: 5239700 (1993-08-01), Guenther et al.
patent: 5612741 (1997-03-01), Loban et al.

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