Facsimile and static presentation processing – Facsimile – Specific signal processing circuitry
Patent
1987-05-14
1988-08-23
Britton, Howard W.
Facsimile and static presentation processing
Facsimile
Specific signal processing circuitry
358181, 358185, H04N 718
Patent
active
047664916
ABSTRACT:
A video monitoring system applicable to a security system is provided with a television camera, one or more television monitors, one or more AC adaptors equal in number to the television monitors, and one or more adaptors equal in number to the television monitors. Each adaptor connects the television camera to the associated television monitor via a prior stage component of the monitoring system and to a next stage component. At least one of the adaptors has functions for transmitting DC power supply of the associated AC adaptor to the associated television monitor, for transmitting DC power supply to the prior stage component via the associated television monitor, for transmitting and amplifying an audio signal of the television camera to the associated television monitor and to the next stage component, for transmitting and amplifying a video signal of the television camera to the next stage component upon receipt of DC power supply from the next stage component, and for transmitting the video signal from the prior stage component to the associated television monitor.
REFERENCES:
patent: 4037250 (1977-07-01), McGahan et al.
patent: 4577229 (1986-03-01), de la Cierva, Sr. et al.
patent: 4673974 (1987-06-01), Ito et al.
patent: 4700230 (1987-10-01), Pshtissky et al.
Saitoh Mitsumasa
Sumi Naoyuki
Tagawa Susumu
Britton Howard W.
Kananen Ronald P.
Kostak Victor R.
Sony Corporation
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