Video and audio security system

Details Video and audio security system Video and audio security system

1983-04-21

1985-06-18

Britton, Howard W.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358229, H04N 718

Patent

active

045243840

ABSTRACT:
A video and audio system for monitoring an area, particularly an area adjacent a door, is disclosed. The system includes a video and audio assembly adapted to be mounted to a door and a video and audio console spaced from the door. Opening of the door is controlled by an electric door strike operated from the console. The assembly is quite compact which facilitates mounting of the assembly to the door. The video camera includes a right angle optical system which contributes to the compactness of the assembly. Both the console and the assembly include audio elements which permit simultaneous two-way communication. A limited number of conductors none of which carry high voltage couple the assembly and the console.

REFERENCES:
patent: 3482037 (1969-12-01), Brown
patent: 3564132 (1971-02-01), Baker
patent: 3742133 (1973-06-01), O'Sullivan
patent: 4232196 (1980-11-01), Filippi
patent: 4355329 (1982-10-01), Yoshida

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