Multifunction visitor information system

Details Multifunction visitor information system Multifunction visitor information system

1995-07-14

1997-09-30

Hofsass, Jeffery

Communications: electrical

Systems

Plural

340541, 340565, 340330, G08B 2700

Patent

active

056730160

ABSTRACT:
A multifunction visitor information system for use in association with a building structure including an electrical system, intercom system, door bell system, security system and telephone system, the apparatus comprising: a central control unit formed in a planar configuration with an essentially hollow interior, the control unit being couplable to a desired mounting surface, the control unit including at least one light, a liquid crystal display panel including means for displaying a plurality of different messages for viewing by visitors to a building structure, the liquid crystal display panel and each light being electrically coupled to the electrical system of a building structure; and a plurality of function buttons being positioned within the display unit and operatively coupled to the liquid crystal display panel, the function buttons permitting users to send a plurality of different coded sequences to the panel thereby causing different messages to be displayed on the panel.

REFERENCES:
patent: 3484561 (1969-12-01), Matthews
patent: 3916401 (1975-10-01), Freeman
patent: 4023151 (1977-05-01), Markham
patent: 4144529 (1979-03-01), Miller et al.
patent: 4764953 (1988-08-01), Chern et al.
patent: 4851811 (1989-07-01), Vallat et al.
patent: 4853678 (1989-08-01), Bishop, Jr. et al.
patent: 4855723 (1989-08-01), Fritz et al.
patent: 4868540 (1989-09-01), Housley
patent: 4931780 (1990-06-01), LaMont et al.
patent: 4951045 (1990-08-01), Knapp et al.
patent: 5280266 (1994-01-01), Kao
patent: 5303300 (1994-04-01), Eckstein
patent: 5315639 (1994-05-01), Lassers
patent: 5321742 (1994-06-01), Stevens
patent: 5521578 (1996-05-01), DelValle

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